VERSION = 4
PATCHLEVEL = 4
SUBLEVEL = 0
-EXTRAVERSION = -rc1
+EXTRAVERSION = -rc1-o
NAME = Blurry Fish Butt
# *DOCUMENTATION*
obj-$(CONFIG_ORANGEFS_FS) += orangefs.o
-orangefs-objs := acl.o file.o pvfs2-cache.o pvfs2-utils.o xattr.o dcache.o \
- inode.o pvfs2-sysfs.o pvfs2-mod.o super.o devpvfs2-req.o \
- namei.o symlink.o dir.o pvfs2-bufmap.o \
- pvfs2-debugfs.o waitqueue.o
+orangefs-objs := acl.o file.o orangefs-cache.o orangefs-utils.o xattr.o \
+ dcache.o inode.o orangefs-sysfs.o orangefs-mod.o super.o \
+ devorangefs-req.o namei.o symlink.o dir.o orangefs-bufmap.o \
+ orangefs-debugfs.o waitqueue.o
*/
#include "protocol.h"
-#include "pvfs2-kernel.h"
-#include "pvfs2-bufmap.h"
+#include "orangefs-kernel.h"
+#include "orangefs-bufmap.h"
#include <linux/posix_acl_xattr.h>
#include <linux/fs_struct.h>
*/
#include "protocol.h"
-#include "pvfs2-kernel.h"
+#include "orangefs-kernel.h"
/* Returns 1 if dentry can still be trusted, else 0. */
static int orangefs_revalidate_lookup(struct dentry *dentry)
--- /dev/null
+/*
+ * (C) 2001 Clemson University and The University of Chicago
+ *
+ * Changes by Acxiom Corporation to add protocol version to kernel
+ * communication, Copyright Acxiom Corporation, 2005.
+ *
+ * See COPYING in top-level directory.
+ */
+
+#include "protocol.h"
+#include "orangefs-kernel.h"
+#include "orangefs-dev-proto.h"
+#include "orangefs-bufmap.h"
+
+#include <linux/debugfs.h>
+#include <linux/slab.h>
+
+/* this file implements the /dev/pvfs2-req device node */
+
+static int open_access_count;
+
+#define DUMP_DEVICE_ERROR() \
+do { \
+ gossip_err("*****************************************************\n");\
+ gossip_err("ORANGEFS Device Error: You cannot open the device file "); \
+ gossip_err("\n/dev/%s more than once. Please make sure that\nthere " \
+ "are no ", ORANGEFS_REQDEVICE_NAME); \
+ gossip_err("instances of a program using this device\ncurrently " \
+ "running. (You must verify this!)\n"); \
+ gossip_err("For example, you can use the lsof program as follows:\n");\
+ gossip_err("'lsof | grep %s' (run this as root)\n", \
+ ORANGEFS_REQDEVICE_NAME); \
+ gossip_err(" open_access_count = %d\n", open_access_count); \
+ gossip_err("*****************************************************\n");\
+} while (0)
+
+static int hash_func(__u64 tag, int table_size)
+{
+ return do_div(tag, (unsigned int)table_size);
+}
+
+static void orangefs_devreq_add_op(struct orangefs_kernel_op_s *op)
+{
+ int index = hash_func(op->tag, hash_table_size);
+
+ spin_lock(&htable_ops_in_progress_lock);
+ list_add_tail(&op->list, &htable_ops_in_progress[index]);
+ spin_unlock(&htable_ops_in_progress_lock);
+}
+
+static struct orangefs_kernel_op_s *orangefs_devreq_remove_op(__u64 tag)
+{
+ struct orangefs_kernel_op_s *op, *next;
+ int index;
+
+ index = hash_func(tag, hash_table_size);
+
+ spin_lock(&htable_ops_in_progress_lock);
+ list_for_each_entry_safe(op,
+ next,
+ &htable_ops_in_progress[index],
+ list) {
+ if (op->tag == tag) {
+ list_del(&op->list);
+ spin_unlock(&htable_ops_in_progress_lock);
+ return op;
+ }
+ }
+
+ spin_unlock(&htable_ops_in_progress_lock);
+ return NULL;
+}
+
+static int orangefs_devreq_open(struct inode *inode, struct file *file)
+{
+ int ret = -EINVAL;
+
+ if (!(file->f_flags & O_NONBLOCK)) {
+ gossip_err("orangefs: device cannot be opened in blocking mode\n");
+ goto out;
+ }
+ ret = -EACCES;
+ gossip_debug(GOSSIP_DEV_DEBUG, "pvfs2-client-core: opening device\n");
+ mutex_lock(&devreq_mutex);
+
+ if (open_access_count == 0) {
+ ret = generic_file_open(inode, file);
+ if (ret == 0)
+ open_access_count++;
+ } else {
+ DUMP_DEVICE_ERROR();
+ }
+ mutex_unlock(&devreq_mutex);
+
+out:
+
+ gossip_debug(GOSSIP_DEV_DEBUG,
+ "pvfs2-client-core: open device complete (ret = %d)\n",
+ ret);
+ return ret;
+}
+
+static ssize_t orangefs_devreq_read(struct file *file,
+ char __user *buf,
+ size_t count, loff_t *offset)
+{
+ struct orangefs_kernel_op_s *op, *temp;
+ __s32 proto_ver = ORANGEFS_KERNEL_PROTO_VERSION;
+ static __s32 magic = ORANGEFS_DEVREQ_MAGIC;
+ struct orangefs_kernel_op_s *cur_op = NULL;
+ unsigned long ret;
+
+ /* We do not support blocking IO. */
+ if (!(file->f_flags & O_NONBLOCK)) {
+ gossip_err("orangefs: blocking reads are not supported! (pvfs2-client-core bug)\n");
+ return -EINVAL;
+ }
+
+ /*
+ * The client will do an ioctl to find MAX_ALIGNED_DEV_REQ_UPSIZE, then
+ * always read with that size buffer.
+ */
+ if (count != MAX_ALIGNED_DEV_REQ_UPSIZE) {
+ gossip_err("orangefs: client-core tried to read wrong size\n");
+ return -EINVAL;
+ }
+
+ /* Get next op (if any) from top of list. */
+ spin_lock(&orangefs_request_list_lock);
+ list_for_each_entry_safe(op, temp, &orangefs_request_list, list) {
+ __s32 fsid;
+ /* This lock is held past the end of the loop when we break. */
+ spin_lock(&op->lock);
+
+ fsid = fsid_of_op(op);
+ if (fsid != ORANGEFS_FS_ID_NULL) {
+ int ret;
+ /* Skip ops whose filesystem needs to be mounted. */
+ ret = fs_mount_pending(fsid);
+ if (ret == 1) {
+ gossip_debug(GOSSIP_DEV_DEBUG,
+ "orangefs: skipping op tag %llu %s\n",
+ llu(op->tag), get_opname_string(op));
+ spin_unlock(&op->lock);
+ continue;
+ /* Skip ops whose filesystem we don't know about unless
+ * it is being mounted. */
+ /* XXX: is there a better way to detect this? */
+ } else if (ret == -1 &&
+ !(op->upcall.type == ORANGEFS_VFS_OP_FS_MOUNT ||
+ op->upcall.type == ORANGEFS_VFS_OP_GETATTR)) {
+ gossip_debug(GOSSIP_DEV_DEBUG,
+ "orangefs: skipping op tag %llu %s\n",
+ llu(op->tag), get_opname_string(op));
+ gossip_err(
+ "orangefs: ERROR: fs_mount_pending %d\n",
+ fsid);
+ spin_unlock(&op->lock);
+ continue;
+ }
+ }
+ /*
+ * Either this op does not pertain to a filesystem, is mounting
+ * a filesystem, or pertains to a mounted filesystem. Let it
+ * through.
+ */
+ cur_op = op;
+ break;
+ }
+
+ /*
+ * At this point we either have a valid op and can continue or have not
+ * found an op and must ask the client to try again later.
+ */
+ if (!cur_op) {
+ spin_unlock(&orangefs_request_list_lock);
+ return -EAGAIN;
+ }
+
+ gossip_debug(GOSSIP_DEV_DEBUG, "orangefs: reading op tag %llu %s\n",
+ llu(cur_op->tag), get_opname_string(cur_op));
+
+ /*
+ * Such an op should never be on the list in the first place. If so, we
+ * will abort.
+ */
+ if (op_state_in_progress(cur_op) || op_state_serviced(cur_op)) {
+ gossip_err("orangefs: ERROR: Current op already queued.\n");
+ list_del(&cur_op->list);
+ spin_unlock(&cur_op->lock);
+ spin_unlock(&orangefs_request_list_lock);
+ return -EAGAIN;
+ }
+
+ /*
+ * Set the operation to be in progress and move it between lists since
+ * it has been sent to the client.
+ */
+ set_op_state_inprogress(cur_op);
+
+ list_del(&cur_op->list);
+ spin_unlock(&orangefs_request_list_lock);
+ orangefs_devreq_add_op(cur_op);
+ spin_unlock(&cur_op->lock);
+
+ /* Push the upcall out. */
+ ret = copy_to_user(buf, &proto_ver, sizeof(__s32));
+ if (ret != 0)
+ goto error;
+ ret = copy_to_user(buf+sizeof(__s32), &magic, sizeof(__s32));
+ if (ret != 0)
+ goto error;
+ ret = copy_to_user(buf+2 * sizeof(__s32), &cur_op->tag, sizeof(__u64));
+ if (ret != 0)
+ goto error;
+ ret = copy_to_user(buf+2*sizeof(__s32)+sizeof(__u64), &cur_op->upcall,
+ sizeof(struct orangefs_upcall_s));
+ if (ret != 0)
+ goto error;
+
+ /* The client only asks to read one size buffer. */
+ return MAX_ALIGNED_DEV_REQ_UPSIZE;
+error:
+ /*
+ * We were unable to copy the op data to the client. Put the op back in
+ * list. If client has crashed, the op will be purged later when the
+ * device is released.
+ */
+ gossip_err("orangefs: Failed to copy data to user space\n");
+ spin_lock(&orangefs_request_list_lock);
+ spin_lock(&cur_op->lock);
+ set_op_state_waiting(cur_op);
+ orangefs_devreq_remove_op(cur_op->tag);
+ list_add(&cur_op->list, &orangefs_request_list);
+ spin_unlock(&cur_op->lock);
+ spin_unlock(&orangefs_request_list_lock);
+ return -EFAULT;
+}
+
+/* Function for writev() callers into the device */
+static ssize_t orangefs_devreq_writev(struct file *file,
+ const struct iovec *iov,
+ size_t count,
+ loff_t *offset)
+{
+ struct orangefs_kernel_op_s *op = NULL;
+ void *buffer = NULL;
+ void *ptr = NULL;
+ unsigned long i = 0;
+ static int max_downsize = MAX_ALIGNED_DEV_REQ_DOWNSIZE;
+ int ret = 0, num_remaining = max_downsize;
+ int notrailer_count = 4; /* num elements in iovec without trailer */
+ int payload_size = 0;
+ __s32 magic = 0;
+ __s32 proto_ver = 0;
+ __u64 tag = 0;
+ ssize_t total_returned_size = 0;
+
+ /* Either there is a trailer or there isn't */
+ if (count != notrailer_count && count != (notrailer_count + 1)) {
+ gossip_err("Error: Number of iov vectors is (%zu) and notrailer count is %d\n",
+ count,
+ notrailer_count);
+ return -EPROTO;
+ }
+ buffer = dev_req_alloc();
+ if (!buffer)
+ return -ENOMEM;
+ ptr = buffer;
+
+ for (i = 0; i < notrailer_count; i++) {
+ if (iov[i].iov_len > num_remaining) {
+ gossip_err
+ ("writev error: Freeing buffer and returning\n");
+ dev_req_release(buffer);
+ return -EMSGSIZE;
+ }
+ ret = copy_from_user(ptr, iov[i].iov_base, iov[i].iov_len);
+ if (ret) {
+ gossip_err("Failed to copy data from user space\n");
+ dev_req_release(buffer);
+ return -EIO;
+ }
+ num_remaining -= iov[i].iov_len;
+ ptr += iov[i].iov_len;
+ payload_size += iov[i].iov_len;
+ }
+ total_returned_size = payload_size;
+
+ /* these elements are currently 8 byte aligned (8 bytes for (version +
+ * magic) 8 bytes for tag). If you add another element, either
+ * make it 8 bytes big, or use get_unaligned when asigning.
+ */
+ ptr = buffer;
+ proto_ver = *((__s32 *) ptr);
+ ptr += sizeof(__s32);
+
+ magic = *((__s32 *) ptr);
+ ptr += sizeof(__s32);
+
+ tag = *((__u64 *) ptr);
+ ptr += sizeof(__u64);
+
+ if (magic != ORANGEFS_DEVREQ_MAGIC) {
+ gossip_err("Error: Device magic number does not match.\n");
+ dev_req_release(buffer);
+ return -EPROTO;
+ }
+
+ /*
+ * proto_ver = 20902 for 2.9.2
+ */
+
+ op = orangefs_devreq_remove_op(tag);
+ if (op) {
+ /* Increase ref count! */
+ get_op(op);
+ /* cut off magic and tag from payload size */
+ payload_size -= (2 * sizeof(__s32) + sizeof(__u64));
+ if (payload_size <= sizeof(struct orangefs_downcall_s))
+ /* copy the passed in downcall into the op */
+ memcpy(&op->downcall,
+ ptr,
+ sizeof(struct orangefs_downcall_s));
+ else
+ gossip_debug(GOSSIP_DEV_DEBUG,
+ "writev: Ignoring %d bytes\n",
+ payload_size);
+
+ /* Do not allocate needlessly if client-core forgets
+ * to reset trailer size on op errors.
+ */
+ if (op->downcall.status == 0 && op->downcall.trailer_size > 0) {
+ __u64 trailer_size = op->downcall.trailer_size;
+ size_t size;
+ gossip_debug(GOSSIP_DEV_DEBUG,
+ "writev: trailer size %ld\n",
+ (unsigned long)trailer_size);
+ if (count != (notrailer_count + 1)) {
+ gossip_err("Error: trailer size (%ld) is non-zero, no trailer elements though? (%zu)\n", (unsigned long)trailer_size, count);
+ dev_req_release(buffer);
+ put_op(op);
+ return -EPROTO;
+ }
+ size = iov[notrailer_count].iov_len;
+ if (size > trailer_size) {
+ gossip_err("writev error: trailer size (%ld) != iov_len (%zd)\n", (unsigned long)trailer_size, size);
+ dev_req_release(buffer);
+ put_op(op);
+ return -EMSGSIZE;
+ }
+ /* Allocate a buffer large enough to hold the
+ * trailer bytes.
+ */
+ op->downcall.trailer_buf = vmalloc(trailer_size);
+ if (op->downcall.trailer_buf != NULL) {
+ gossip_debug(GOSSIP_DEV_DEBUG, "vmalloc: %p\n",
+ op->downcall.trailer_buf);
+ ret = copy_from_user(op->downcall.trailer_buf,
+ iov[notrailer_count].
+ iov_base,
+ size);
+ if (ret) {
+ gossip_err("Failed to copy trailer data from user space\n");
+ dev_req_release(buffer);
+ gossip_debug(GOSSIP_DEV_DEBUG,
+ "vfree: %p\n",
+ op->downcall.trailer_buf);
+ vfree(op->downcall.trailer_buf);
+ op->downcall.trailer_buf = NULL;
+ put_op(op);
+ return -EIO;
+ }
+ memset(op->downcall.trailer_buf + size, 0,
+ trailer_size - size);
+ } else {
+ /* Change downcall status */
+ op->downcall.status = -ENOMEM;
+ gossip_err("writev: could not vmalloc for trailer!\n");
+ }
+ }
+
+ /* if this operation is an I/O operation and if it was
+ * initiated on behalf of a *synchronous* VFS I/O operation,
+ * only then we need to wait
+ * for all data to be copied before we can return to avoid
+ * buffer corruption and races that can pull the buffers
+ * out from under us.
+ *
+ * Essentially we're synchronizing with other parts of the
+ * vfs implicitly by not allowing the user space
+ * application reading/writing this device to return until
+ * the buffers are done being used.
+ */
+ if (op->upcall.type == ORANGEFS_VFS_OP_FILE_IO &&
+ op->upcall.req.io.async_vfs_io == ORANGEFS_VFS_SYNC_IO) {
+ int timed_out = 0;
+ DECLARE_WAITQUEUE(wait_entry, current);
+
+ /* tell the vfs op waiting on a waitqueue
+ * that this op is done
+ */
+ spin_lock(&op->lock);
+ set_op_state_serviced(op);
+ spin_unlock(&op->lock);
+
+ add_wait_queue_exclusive(&op->io_completion_waitq,
+ &wait_entry);
+ wake_up_interruptible(&op->waitq);
+
+ while (1) {
+ set_current_state(TASK_INTERRUPTIBLE);
+
+ spin_lock(&op->lock);
+ if (op->io_completed) {
+ spin_unlock(&op->lock);
+ break;
+ }
+ spin_unlock(&op->lock);
+
+ if (!signal_pending(current)) {
+ int timeout =
+ MSECS_TO_JIFFIES(1000 *
+ op_timeout_secs);
+ if (!schedule_timeout(timeout)) {
+ gossip_debug(GOSSIP_DEV_DEBUG, "*** I/O wait time is up\n");
+ timed_out = 1;
+ break;
+ }
+ continue;
+ }
+
+ gossip_debug(GOSSIP_DEV_DEBUG, "*** signal on I/O wait -- aborting\n");
+ break;
+ }
+
+ set_current_state(TASK_RUNNING);
+ remove_wait_queue(&op->io_completion_waitq,
+ &wait_entry);
+
+ /* NOTE: for I/O operations we handle releasing the op
+ * object except in the case of timeout. the reason we
+ * can't free the op in timeout cases is that the op
+ * service logic in the vfs retries operations using
+ * the same op ptr, thus it can't be freed.
+ */
+ if (!timed_out)
+ op_release(op);
+ } else {
+
+ /*
+ * tell the vfs op waiting on a waitqueue that
+ * this op is done
+ */
+ spin_lock(&op->lock);
+ set_op_state_serviced(op);
+ spin_unlock(&op->lock);
+ /*
+ * for every other operation (i.e. non-I/O), we need to
+ * wake up the callers for downcall completion
+ * notification
+ */
+ wake_up_interruptible(&op->waitq);
+ }
+ } else {
+ /* ignore downcalls that we're not interested in */
+ gossip_debug(GOSSIP_DEV_DEBUG,
+ "WARNING: No one's waiting for tag %llu\n",
+ llu(tag));
+ }
+ dev_req_release(buffer);
+
+ return total_returned_size;
+}
+
+static ssize_t orangefs_devreq_write_iter(struct kiocb *iocb,
+ struct iov_iter *iter)
+{
+ return orangefs_devreq_writev(iocb->ki_filp,
+ iter->iov,
+ iter->nr_segs,
+ &iocb->ki_pos);
+}
+
+/* Returns whether any FS are still pending remounted */
+static int mark_all_pending_mounts(void)
+{
+ int unmounted = 1;
+ struct orangefs_sb_info_s *orangefs_sb = NULL;
+
+ spin_lock(&orangefs_superblocks_lock);
+ list_for_each_entry(orangefs_sb, &orangefs_superblocks, list) {
+ /* All of these file system require a remount */
+ orangefs_sb->mount_pending = 1;
+ unmounted = 0;
+ }
+ spin_unlock(&orangefs_superblocks_lock);
+ return unmounted;
+}
+
+/*
+ * Determine if a given file system needs to be remounted or not
+ * Returns -1 on error
+ * 0 if already mounted
+ * 1 if needs remount
+ */
+int fs_mount_pending(__s32 fsid)
+{
+ int mount_pending = -1;
+ struct orangefs_sb_info_s *orangefs_sb = NULL;
+
+ spin_lock(&orangefs_superblocks_lock);
+ list_for_each_entry(orangefs_sb, &orangefs_superblocks, list) {
+ if (orangefs_sb->fs_id == fsid) {
+ mount_pending = orangefs_sb->mount_pending;
+ break;
+ }
+ }
+ spin_unlock(&orangefs_superblocks_lock);
+ return mount_pending;
+}
+
+/*
+ * NOTE: gets called when the last reference to this device is dropped.
+ * Using the open_access_count variable, we enforce a reference count
+ * on this file so that it can be opened by only one process at a time.
+ * the devreq_mutex is used to make sure all i/o has completed
+ * before we call orangefs_bufmap_finalize, and similar such tricky
+ * situations
+ */
+static int orangefs_devreq_release(struct inode *inode, struct file *file)
+{
+ int unmounted = 0;
+
+ gossip_debug(GOSSIP_DEV_DEBUG,
+ "%s:pvfs2-client-core: exiting, closing device\n",
+ __func__);
+
+ mutex_lock(&devreq_mutex);
+ orangefs_bufmap_finalize();
+
+ open_access_count--;
+
+ unmounted = mark_all_pending_mounts();
+ gossip_debug(GOSSIP_DEV_DEBUG, "ORANGEFS Device Close: Filesystem(s) %s\n",
+ (unmounted ? "UNMOUNTED" : "MOUNTED"));
+ mutex_unlock(&devreq_mutex);
+
+ /*
+ * Walk through the list of ops in the request list, mark them
+ * as purged and wake them up.
+ */
+ purge_waiting_ops();
+ /*
+ * Walk through the hash table of in progress operations; mark
+ * them as purged and wake them up
+ */
+ purge_inprogress_ops();
+ gossip_debug(GOSSIP_DEV_DEBUG,
+ "pvfs2-client-core: device close complete\n");
+ return 0;
+}
+
+int is_daemon_in_service(void)
+{
+ int in_service;
+
+ /*
+ * What this function does is checks if client-core is alive
+ * based on the access count we maintain on the device.
+ */
+ mutex_lock(&devreq_mutex);
+ in_service = open_access_count == 1 ? 0 : -EIO;
+ mutex_unlock(&devreq_mutex);
+ return in_service;
+}
+
+static inline long check_ioctl_command(unsigned int command)
+{
+ /* Check for valid ioctl codes */
+ if (_IOC_TYPE(command) != ORANGEFS_DEV_MAGIC) {
+ gossip_err("device ioctl magic numbers don't match! Did you rebuild pvfs2-client-core/libpvfs2? [cmd %x, magic %x != %x]\n",
+ command,
+ _IOC_TYPE(command),
+ ORANGEFS_DEV_MAGIC);
+ return -EINVAL;
+ }
+ /* and valid ioctl commands */
+ if (_IOC_NR(command) >= ORANGEFS_DEV_MAXNR || _IOC_NR(command) <= 0) {
+ gossip_err("Invalid ioctl command number [%d >= %d]\n",
+ _IOC_NR(command), ORANGEFS_DEV_MAXNR);
+ return -ENOIOCTLCMD;
+ }
+ return 0;
+}
+
+static long dispatch_ioctl_command(unsigned int command, unsigned long arg)
+{
+ static __s32 magic = ORANGEFS_DEVREQ_MAGIC;
+ static __s32 max_up_size = MAX_ALIGNED_DEV_REQ_UPSIZE;
+ static __s32 max_down_size = MAX_ALIGNED_DEV_REQ_DOWNSIZE;
+ struct ORANGEFS_dev_map_desc user_desc;
+ int ret = 0;
+ struct dev_mask_info_s mask_info = { 0 };
+ struct dev_mask2_info_s mask2_info = { 0, 0 };
+ int upstream_kmod = 1;
+ struct list_head *tmp = NULL;
+ struct orangefs_sb_info_s *orangefs_sb = NULL;
+
+ /* mtmoore: add locking here */
+
+ switch (command) {
+ case ORANGEFS_DEV_GET_MAGIC:
+ return ((put_user(magic, (__s32 __user *) arg) == -EFAULT) ?
+ -EIO :
+ 0);
+ case ORANGEFS_DEV_GET_MAX_UPSIZE:
+ return ((put_user(max_up_size,
+ (__s32 __user *) arg) == -EFAULT) ?
+ -EIO :
+ 0);
+ case ORANGEFS_DEV_GET_MAX_DOWNSIZE:
+ return ((put_user(max_down_size,
+ (__s32 __user *) arg) == -EFAULT) ?
+ -EIO :
+ 0);
+ case ORANGEFS_DEV_MAP:
+ ret = copy_from_user(&user_desc,
+ (struct ORANGEFS_dev_map_desc __user *)
+ arg,
+ sizeof(struct ORANGEFS_dev_map_desc));
+ return ret ? -EIO : orangefs_bufmap_initialize(&user_desc);
+ case ORANGEFS_DEV_REMOUNT_ALL:
+ gossip_debug(GOSSIP_DEV_DEBUG,
+ "orangefs_devreq_ioctl: got ORANGEFS_DEV_REMOUNT_ALL\n");
+
+ /*
+ * remount all mounted orangefs volumes to regain the lost
+ * dynamic mount tables (if any) -- NOTE: this is done
+ * without keeping the superblock list locked due to the
+ * upcall/downcall waiting. also, the request semaphore is
+ * used to ensure that no operations will be serviced until
+ * all of the remounts are serviced (to avoid ops between
+ * mounts to fail)
+ */
+ ret = mutex_lock_interruptible(&request_mutex);
+ if (ret < 0)
+ return ret;
+ gossip_debug(GOSSIP_DEV_DEBUG,
+ "orangefs_devreq_ioctl: priority remount in progress\n");
+ list_for_each(tmp, &orangefs_superblocks) {
+ orangefs_sb =
+ list_entry(tmp, struct orangefs_sb_info_s, list);
+ if (orangefs_sb && (orangefs_sb->sb)) {
+ gossip_debug(GOSSIP_DEV_DEBUG,
+ "Remounting SB %p\n",
+ orangefs_sb);
+
+ ret = orangefs_remount(orangefs_sb->sb);
+ if (ret) {
+ gossip_debug(GOSSIP_DEV_DEBUG,
+ "SB %p remount failed\n",
+ orangefs_sb);
+ break;
+ }
+ }
+ }
+ gossip_debug(GOSSIP_DEV_DEBUG,
+ "orangefs_devreq_ioctl: priority remount complete\n");
+ mutex_unlock(&request_mutex);
+ return ret;
+
+ case ORANGEFS_DEV_UPSTREAM:
+ ret = copy_to_user((void __user *)arg,
+ &upstream_kmod,
+ sizeof(upstream_kmod));
+
+ if (ret != 0)
+ return -EIO;
+ else
+ return ret;
+
+ case ORANGEFS_DEV_CLIENT_MASK:
+ ret = copy_from_user(&mask2_info,
+ (void __user *)arg,
+ sizeof(struct dev_mask2_info_s));
+
+ if (ret != 0)
+ return -EIO;
+
+ client_debug_mask.mask1 = mask2_info.mask1_value;
+ client_debug_mask.mask2 = mask2_info.mask2_value;
+
+ pr_info("%s: client debug mask has been been received "
+ ":%llx: :%llx:\n",
+ __func__,
+ (unsigned long long)client_debug_mask.mask1,
+ (unsigned long long)client_debug_mask.mask2);
+
+ return ret;
+
+ case ORANGEFS_DEV_CLIENT_STRING:
+ ret = copy_from_user(&client_debug_array_string,
+ (void __user *)arg,
+ ORANGEFS_MAX_DEBUG_STRING_LEN);
+ if (ret != 0) {
+ pr_info("%s: "
+ "ORANGEFS_DEV_CLIENT_STRING: copy_from_user failed"
+ "\n",
+ __func__);
+ return -EIO;
+ }
+
+ pr_info("%s: client debug array string has been been received."
+ "\n",
+ __func__);
+
+ if (!help_string_initialized) {
+
+ /* Free the "we don't know yet" default string... */
+ kfree(debug_help_string);
+
+ /* build a proper debug help string */
+ if (orangefs_prepare_debugfs_help_string(0)) {
+ gossip_err("%s: "
+ "prepare_debugfs_help_string failed"
+ "\n",
+ __func__);
+ return -EIO;
+ }
+
+ /* Replace the boilerplate boot-time debug-help file. */
+ debugfs_remove(help_file_dentry);
+
+ help_file_dentry =
+ debugfs_create_file(
+ ORANGEFS_KMOD_DEBUG_HELP_FILE,
+ 0444,
+ debug_dir,
+ debug_help_string,
+ &debug_help_fops);
+
+ if (!help_file_dentry) {
+ gossip_err("%s: debugfs_create_file failed for"
+ " :%s:!\n",
+ __func__,
+ ORANGEFS_KMOD_DEBUG_HELP_FILE);
+ return -EIO;
+ }
+ }
+
+ debug_mask_to_string(&client_debug_mask, 1);
+
+ debugfs_remove(client_debug_dentry);
+
+ orangefs_client_debug_init();
+
+ help_string_initialized++;
+
+ return ret;
+
+ case ORANGEFS_DEV_DEBUG:
+ ret = copy_from_user(&mask_info,
+ (void __user *)arg,
+ sizeof(mask_info));
+
+ if (ret != 0)
+ return -EIO;
+
+ if (mask_info.mask_type == KERNEL_MASK) {
+ if ((mask_info.mask_value == 0)
+ && (kernel_mask_set_mod_init)) {
+ /*
+ * the kernel debug mask was set when the
+ * kernel module was loaded; don't override
+ * it if the client-core was started without
+ * a value for ORANGEFS_KMODMASK.
+ */
+ return 0;
+ }
+ debug_mask_to_string(&mask_info.mask_value,
+ mask_info.mask_type);
+ gossip_debug_mask = mask_info.mask_value;
+ pr_info("ORANGEFS: kernel debug mask has been modified to "
+ ":%s: :%llx:\n",
+ kernel_debug_string,
+ (unsigned long long)gossip_debug_mask);
+ } else if (mask_info.mask_type == CLIENT_MASK) {
+ debug_mask_to_string(&mask_info.mask_value,
+ mask_info.mask_type);
+ pr_info("ORANGEFS: client debug mask has been modified to"
+ ":%s: :%llx:\n",
+ client_debug_string,
+ llu(mask_info.mask_value));
+ } else {
+ gossip_lerr("Invalid mask type....\n");
+ return -EINVAL;
+ }
+
+ return ret;
+
+ default:
+ return -ENOIOCTLCMD;
+ }
+ return -ENOIOCTLCMD;
+}
+
+static long orangefs_devreq_ioctl(struct file *file,
+ unsigned int command, unsigned long arg)
+{
+ long ret;
+
+ /* Check for properly constructed commands */
+ ret = check_ioctl_command(command);
+ if (ret < 0)
+ return (int)ret;
+
+ return (int)dispatch_ioctl_command(command, arg);
+}
+
+#ifdef CONFIG_COMPAT /* CONFIG_COMPAT is in .config */
+
+/* Compat structure for the ORANGEFS_DEV_MAP ioctl */
+struct ORANGEFS_dev_map_desc32 {
+ compat_uptr_t ptr;
+ __s32 total_size;
+ __s32 size;
+ __s32 count;
+};
+
+static unsigned long translate_dev_map26(unsigned long args, long *error)
+{
+ struct ORANGEFS_dev_map_desc32 __user *p32 = (void __user *)args;
+ /*
+ * Depending on the architecture, allocate some space on the
+ * user-call-stack based on our expected layout.
+ */
+ struct ORANGEFS_dev_map_desc __user *p =
+ compat_alloc_user_space(sizeof(*p));
+ compat_uptr_t addr;
+
+ *error = 0;
+ /* get the ptr from the 32 bit user-space */
+ if (get_user(addr, &p32->ptr))
+ goto err;
+ /* try to put that into a 64-bit layout */
+ if (put_user(compat_ptr(addr), &p->ptr))
+ goto err;
+ /* copy the remaining fields */
+ if (copy_in_user(&p->total_size, &p32->total_size, sizeof(__s32)))
+ goto err;
+ if (copy_in_user(&p->size, &p32->size, sizeof(__s32)))
+ goto err;
+ if (copy_in_user(&p->count, &p32->count, sizeof(__s32)))
+ goto err;
+ return (unsigned long)p;
+err:
+ *error = -EFAULT;
+ return 0;
+}
+
+/*
+ * 32 bit user-space apps' ioctl handlers when kernel modules
+ * is compiled as a 64 bit one
+ */
+static long orangefs_devreq_compat_ioctl(struct file *filp, unsigned int cmd,
+ unsigned long args)
+{
+ long ret;
+ unsigned long arg = args;
+
+ /* Check for properly constructed commands */
+ ret = check_ioctl_command(cmd);
+ if (ret < 0)
+ return ret;
+ if (cmd == ORANGEFS_DEV_MAP) {
+ /*
+ * convert the arguments to what we expect internally
+ * in kernel space
+ */
+ arg = translate_dev_map26(args, &ret);
+ if (ret < 0) {
+ gossip_err("Could not translate dev map\n");
+ return ret;
+ }
+ }
+ /* no other ioctl requires translation */
+ return dispatch_ioctl_command(cmd, arg);
+}
+
+#endif /* CONFIG_COMPAT is in .config */
+
+/*
+ * The following two ioctl32 functions had been refactored into the above
+ * CONFIG_COMPAT ifdef, but that was an over simplification that was
+ * not noticed until we tried to compile on power pc...
+ */
+#if (defined(CONFIG_COMPAT) && !defined(HAVE_REGISTER_IOCTL32_CONVERSION)) || !defined(CONFIG_COMPAT)
+static int orangefs_ioctl32_init(void)
+{
+ return 0;
+}
+
+static void orangefs_ioctl32_cleanup(void)
+{
+ return;
+}
+#endif
+
+/* the assigned character device major number */
+static int orangefs_dev_major;
+
+/*
+ * Initialize orangefs device specific state:
+ * Must be called at module load time only
+ */
+int orangefs_dev_init(void)
+{
+ int ret;
+
+ /* register the ioctl32 sub-system */
+ ret = orangefs_ioctl32_init();
+ if (ret < 0)
+ return ret;
+
+ /* register orangefs-req device */
+ orangefs_dev_major = register_chrdev(0,
+ ORANGEFS_REQDEVICE_NAME,
+ &orangefs_devreq_file_operations);
+ if (orangefs_dev_major < 0) {
+ gossip_debug(GOSSIP_DEV_DEBUG,
+ "Failed to register /dev/%s (error %d)\n",
+ ORANGEFS_REQDEVICE_NAME, orangefs_dev_major);
+ orangefs_ioctl32_cleanup();
+ return orangefs_dev_major;
+ }
+
+ gossip_debug(GOSSIP_DEV_DEBUG,
+ "*** /dev/%s character device registered ***\n",
+ ORANGEFS_REQDEVICE_NAME);
+ gossip_debug(GOSSIP_DEV_DEBUG, "'mknod /dev/%s c %d 0'.\n",
+ ORANGEFS_REQDEVICE_NAME, orangefs_dev_major);
+ return 0;
+}
+
+void orangefs_dev_cleanup(void)
+{
+ unregister_chrdev(orangefs_dev_major, ORANGEFS_REQDEVICE_NAME);
+ gossip_debug(GOSSIP_DEV_DEBUG,
+ "*** /dev/%s character device unregistered ***\n",
+ ORANGEFS_REQDEVICE_NAME);
+ /* unregister the ioctl32 sub-system */
+ orangefs_ioctl32_cleanup();
+}
+
+static unsigned int orangefs_devreq_poll(struct file *file,
+ struct poll_table_struct *poll_table)
+{
+ int poll_revent_mask = 0;
+
+ if (open_access_count == 1) {
+ poll_wait(file, &orangefs_request_list_waitq, poll_table);
+
+ spin_lock(&orangefs_request_list_lock);
+ if (!list_empty(&orangefs_request_list))
+ poll_revent_mask |= POLL_IN;
+ spin_unlock(&orangefs_request_list_lock);
+ }
+ return poll_revent_mask;
+}
+
+const struct file_operations orangefs_devreq_file_operations = {
+ .owner = THIS_MODULE,
+ .read = orangefs_devreq_read,
+ .write_iter = orangefs_devreq_write_iter,
+ .open = orangefs_devreq_open,
+ .release = orangefs_devreq_release,
+ .unlocked_ioctl = orangefs_devreq_ioctl,
+
+#ifdef CONFIG_COMPAT /* CONFIG_COMPAT is in .config */
+ .compat_ioctl = orangefs_devreq_compat_ioctl,
+#endif
+ .poll = orangefs_devreq_poll
+};
+++ /dev/null
-/*
- * (C) 2001 Clemson University and The University of Chicago
- *
- * Changes by Acxiom Corporation to add protocol version to kernel
- * communication, Copyright Acxiom Corporation, 2005.
- *
- * See COPYING in top-level directory.
- */
-
-#include "protocol.h"
-#include "pvfs2-kernel.h"
-#include "pvfs2-dev-proto.h"
-#include "pvfs2-bufmap.h"
-
-#include <linux/debugfs.h>
-#include <linux/slab.h>
-
-/* this file implements the /dev/pvfs2-req device node */
-
-static int open_access_count;
-
-#define DUMP_DEVICE_ERROR() \
-do { \
- gossip_err("*****************************************************\n");\
- gossip_err("ORANGEFS Device Error: You cannot open the device file "); \
- gossip_err("\n/dev/%s more than once. Please make sure that\nthere " \
- "are no ", ORANGEFS_REQDEVICE_NAME); \
- gossip_err("instances of a program using this device\ncurrently " \
- "running. (You must verify this!)\n"); \
- gossip_err("For example, you can use the lsof program as follows:\n");\
- gossip_err("'lsof | grep %s' (run this as root)\n", \
- ORANGEFS_REQDEVICE_NAME); \
- gossip_err(" open_access_count = %d\n", open_access_count); \
- gossip_err("*****************************************************\n");\
-} while (0)
-
-static int hash_func(__u64 tag, int table_size)
-{
- return do_div(tag, (unsigned int)table_size);
-}
-
-static void orangefs_devreq_add_op(struct orangefs_kernel_op_s *op)
-{
- int index = hash_func(op->tag, hash_table_size);
-
- spin_lock(&htable_ops_in_progress_lock);
- list_add_tail(&op->list, &htable_ops_in_progress[index]);
- spin_unlock(&htable_ops_in_progress_lock);
-}
-
-static struct orangefs_kernel_op_s *orangefs_devreq_remove_op(__u64 tag)
-{
- struct orangefs_kernel_op_s *op, *next;
- int index;
-
- index = hash_func(tag, hash_table_size);
-
- spin_lock(&htable_ops_in_progress_lock);
- list_for_each_entry_safe(op,
- next,
- &htable_ops_in_progress[index],
- list) {
- if (op->tag == tag) {
- list_del(&op->list);
- spin_unlock(&htable_ops_in_progress_lock);
- return op;
- }
- }
-
- spin_unlock(&htable_ops_in_progress_lock);
- return NULL;
-}
-
-static int orangefs_devreq_open(struct inode *inode, struct file *file)
-{
- int ret = -EINVAL;
-
- if (!(file->f_flags & O_NONBLOCK)) {
- gossip_err("orangefs: device cannot be opened in blocking mode\n");
- goto out;
- }
- ret = -EACCES;
- gossip_debug(GOSSIP_DEV_DEBUG, "pvfs2-client-core: opening device\n");
- mutex_lock(&devreq_mutex);
-
- if (open_access_count == 0) {
- ret = generic_file_open(inode, file);
- if (ret == 0)
- open_access_count++;
- } else {
- DUMP_DEVICE_ERROR();
- }
- mutex_unlock(&devreq_mutex);
-
-out:
-
- gossip_debug(GOSSIP_DEV_DEBUG,
- "pvfs2-client-core: open device complete (ret = %d)\n",
- ret);
- return ret;
-}
-
-static ssize_t orangefs_devreq_read(struct file *file,
- char __user *buf,
- size_t count, loff_t *offset)
-{
- struct orangefs_kernel_op_s *op, *temp;
- __s32 proto_ver = ORANGEFS_KERNEL_PROTO_VERSION;
- static __s32 magic = ORANGEFS_DEVREQ_MAGIC;
- struct orangefs_kernel_op_s *cur_op = NULL;
- unsigned long ret;
-
- /* We do not support blocking IO. */
- if (!(file->f_flags & O_NONBLOCK)) {
- gossip_err("orangefs: blocking reads are not supported! (pvfs2-client-core bug)\n");
- return -EINVAL;
- }
-
- /*
- * The client will do an ioctl to find MAX_ALIGNED_DEV_REQ_UPSIZE, then
- * always read with that size buffer.
- */
- if (count != MAX_ALIGNED_DEV_REQ_UPSIZE) {
- gossip_err("orangefs: client-core tried to read wrong size\n");
- return -EINVAL;
- }
-
- /* Get next op (if any) from top of list. */
- spin_lock(&orangefs_request_list_lock);
- list_for_each_entry_safe(op, temp, &orangefs_request_list, list) {
- __s32 fsid;
- /* This lock is held past the end of the loop when we break. */
- spin_lock(&op->lock);
-
- fsid = fsid_of_op(op);
- if (fsid != ORANGEFS_FS_ID_NULL) {
- int ret;
- /* Skip ops whose filesystem needs to be mounted. */
- ret = fs_mount_pending(fsid);
- if (ret == 1) {
- gossip_debug(GOSSIP_DEV_DEBUG,
- "orangefs: skipping op tag %llu %s\n",
- llu(op->tag), get_opname_string(op));
- spin_unlock(&op->lock);
- continue;
- /* Skip ops whose filesystem we don't know about unless
- * it is being mounted. */
- /* XXX: is there a better way to detect this? */
- } else if (ret == -1 &&
- !(op->upcall.type == ORANGEFS_VFS_OP_FS_MOUNT ||
- op->upcall.type == ORANGEFS_VFS_OP_GETATTR)) {
- gossip_debug(GOSSIP_DEV_DEBUG,
- "orangefs: skipping op tag %llu %s\n",
- llu(op->tag), get_opname_string(op));
- gossip_err(
- "orangefs: ERROR: fs_mount_pending %d\n",
- fsid);
- spin_unlock(&op->lock);
- continue;
- }
- }
- /*
- * Either this op does not pertain to a filesystem, is mounting
- * a filesystem, or pertains to a mounted filesystem. Let it
- * through.
- */
- cur_op = op;
- break;
- }
-
- /*
- * At this point we either have a valid op and can continue or have not
- * found an op and must ask the client to try again later.
- */
- if (!cur_op) {
- spin_unlock(&orangefs_request_list_lock);
- return -EAGAIN;
- }
-
- gossip_debug(GOSSIP_DEV_DEBUG, "orangefs: reading op tag %llu %s\n",
- llu(cur_op->tag), get_opname_string(cur_op));
-
- /*
- * Such an op should never be on the list in the first place. If so, we
- * will abort.
- */
- if (op_state_in_progress(cur_op) || op_state_serviced(cur_op)) {
- gossip_err("orangefs: ERROR: Current op already queued.\n");
- list_del(&cur_op->list);
- spin_unlock(&cur_op->lock);
- spin_unlock(&orangefs_request_list_lock);
- return -EAGAIN;
- }
-
- /*
- * Set the operation to be in progress and move it between lists since
- * it has been sent to the client.
- */
- set_op_state_inprogress(cur_op);
-
- list_del(&cur_op->list);
- spin_unlock(&orangefs_request_list_lock);
- orangefs_devreq_add_op(cur_op);
- spin_unlock(&cur_op->lock);
-
- /* Push the upcall out. */
- ret = copy_to_user(buf, &proto_ver, sizeof(__s32));
- if (ret != 0)
- goto error;
- ret = copy_to_user(buf+sizeof(__s32), &magic, sizeof(__s32));
- if (ret != 0)
- goto error;
- ret = copy_to_user(buf+2 * sizeof(__s32), &cur_op->tag, sizeof(__u64));
- if (ret != 0)
- goto error;
- ret = copy_to_user(buf+2*sizeof(__s32)+sizeof(__u64), &cur_op->upcall,
- sizeof(struct orangefs_upcall_s));
- if (ret != 0)
- goto error;
-
- /* The client only asks to read one size buffer. */
- return MAX_ALIGNED_DEV_REQ_UPSIZE;
-error:
- /*
- * We were unable to copy the op data to the client. Put the op back in
- * list. If client has crashed, the op will be purged later when the
- * device is released.
- */
- gossip_err("orangefs: Failed to copy data to user space\n");
- spin_lock(&orangefs_request_list_lock);
- spin_lock(&cur_op->lock);
- set_op_state_waiting(cur_op);
- orangefs_devreq_remove_op(cur_op->tag);
- list_add(&cur_op->list, &orangefs_request_list);
- spin_unlock(&cur_op->lock);
- spin_unlock(&orangefs_request_list_lock);
- return -EFAULT;
-}
-
-/* Function for writev() callers into the device */
-static ssize_t orangefs_devreq_writev(struct file *file,
- const struct iovec *iov,
- size_t count,
- loff_t *offset)
-{
- struct orangefs_kernel_op_s *op = NULL;
- void *buffer = NULL;
- void *ptr = NULL;
- unsigned long i = 0;
- static int max_downsize = MAX_ALIGNED_DEV_REQ_DOWNSIZE;
- int ret = 0, num_remaining = max_downsize;
- int notrailer_count = 4; /* num elements in iovec without trailer */
- int payload_size = 0;
- __s32 magic = 0;
- __s32 proto_ver = 0;
- __u64 tag = 0;
- ssize_t total_returned_size = 0;
-
- /* Either there is a trailer or there isn't */
- if (count != notrailer_count && count != (notrailer_count + 1)) {
- gossip_err("Error: Number of iov vectors is (%zu) and notrailer count is %d\n",
- count,
- notrailer_count);
- return -EPROTO;
- }
- buffer = dev_req_alloc();
- if (!buffer)
- return -ENOMEM;
- ptr = buffer;
-
- for (i = 0; i < notrailer_count; i++) {
- if (iov[i].iov_len > num_remaining) {
- gossip_err
- ("writev error: Freeing buffer and returning\n");
- dev_req_release(buffer);
- return -EMSGSIZE;
- }
- ret = copy_from_user(ptr, iov[i].iov_base, iov[i].iov_len);
- if (ret) {
- gossip_err("Failed to copy data from user space\n");
- dev_req_release(buffer);
- return -EIO;
- }
- num_remaining -= iov[i].iov_len;
- ptr += iov[i].iov_len;
- payload_size += iov[i].iov_len;
- }
- total_returned_size = payload_size;
-
- /* these elements are currently 8 byte aligned (8 bytes for (version +
- * magic) 8 bytes for tag). If you add another element, either
- * make it 8 bytes big, or use get_unaligned when asigning.
- */
- ptr = buffer;
- proto_ver = *((__s32 *) ptr);
- ptr += sizeof(__s32);
-
- magic = *((__s32 *) ptr);
- ptr += sizeof(__s32);
-
- tag = *((__u64 *) ptr);
- ptr += sizeof(__u64);
-
- if (magic != ORANGEFS_DEVREQ_MAGIC) {
- gossip_err("Error: Device magic number does not match.\n");
- dev_req_release(buffer);
- return -EPROTO;
- }
-
- /*
- * proto_ver = 20902 for 2.9.2
- */
-
- op = orangefs_devreq_remove_op(tag);
- if (op) {
- /* Increase ref count! */
- get_op(op);
- /* cut off magic and tag from payload size */
- payload_size -= (2 * sizeof(__s32) + sizeof(__u64));
- if (payload_size <= sizeof(struct orangefs_downcall_s))
- /* copy the passed in downcall into the op */
- memcpy(&op->downcall,
- ptr,
- sizeof(struct orangefs_downcall_s));
- else
- gossip_debug(GOSSIP_DEV_DEBUG,
- "writev: Ignoring %d bytes\n",
- payload_size);
-
- /* Do not allocate needlessly if client-core forgets
- * to reset trailer size on op errors.
- */
- if (op->downcall.status == 0 && op->downcall.trailer_size > 0) {
- __u64 trailer_size = op->downcall.trailer_size;
- size_t size;
- gossip_debug(GOSSIP_DEV_DEBUG,
- "writev: trailer size %ld\n",
- (unsigned long)trailer_size);
- if (count != (notrailer_count + 1)) {
- gossip_err("Error: trailer size (%ld) is non-zero, no trailer elements though? (%zu)\n", (unsigned long)trailer_size, count);
- dev_req_release(buffer);
- put_op(op);
- return -EPROTO;
- }
- size = iov[notrailer_count].iov_len;
- if (size > trailer_size) {
- gossip_err("writev error: trailer size (%ld) != iov_len (%zd)\n", (unsigned long)trailer_size, size);
- dev_req_release(buffer);
- put_op(op);
- return -EMSGSIZE;
- }
- /* Allocate a buffer large enough to hold the
- * trailer bytes.
- */
- op->downcall.trailer_buf = vmalloc(trailer_size);
- if (op->downcall.trailer_buf != NULL) {
- gossip_debug(GOSSIP_DEV_DEBUG, "vmalloc: %p\n",
- op->downcall.trailer_buf);
- ret = copy_from_user(op->downcall.trailer_buf,
- iov[notrailer_count].
- iov_base,
- size);
- if (ret) {
- gossip_err("Failed to copy trailer data from user space\n");
- dev_req_release(buffer);
- gossip_debug(GOSSIP_DEV_DEBUG,
- "vfree: %p\n",
- op->downcall.trailer_buf);
- vfree(op->downcall.trailer_buf);
- op->downcall.trailer_buf = NULL;
- put_op(op);
- return -EIO;
- }
- memset(op->downcall.trailer_buf + size, 0,
- trailer_size - size);
- } else {
- /* Change downcall status */
- op->downcall.status = -ENOMEM;
- gossip_err("writev: could not vmalloc for trailer!\n");
- }
- }
-
- /* if this operation is an I/O operation and if it was
- * initiated on behalf of a *synchronous* VFS I/O operation,
- * only then we need to wait
- * for all data to be copied before we can return to avoid
- * buffer corruption and races that can pull the buffers
- * out from under us.
- *
- * Essentially we're synchronizing with other parts of the
- * vfs implicitly by not allowing the user space
- * application reading/writing this device to return until
- * the buffers are done being used.
- */
- if (op->upcall.type == ORANGEFS_VFS_OP_FILE_IO &&
- op->upcall.req.io.async_vfs_io == ORANGEFS_VFS_SYNC_IO) {
- int timed_out = 0;
- DECLARE_WAITQUEUE(wait_entry, current);
-
- /* tell the vfs op waiting on a waitqueue
- * that this op is done
- */
- spin_lock(&op->lock);
- set_op_state_serviced(op);
- spin_unlock(&op->lock);
-
- add_wait_queue_exclusive(&op->io_completion_waitq,
- &wait_entry);
- wake_up_interruptible(&op->waitq);
-
- while (1) {
- set_current_state(TASK_INTERRUPTIBLE);
-
- spin_lock(&op->lock);
- if (op->io_completed) {
- spin_unlock(&op->lock);
- break;
- }
- spin_unlock(&op->lock);
-
- if (!signal_pending(current)) {
- int timeout =
- MSECS_TO_JIFFIES(1000 *
- op_timeout_secs);
- if (!schedule_timeout(timeout)) {
- gossip_debug(GOSSIP_DEV_DEBUG, "*** I/O wait time is up\n");
- timed_out = 1;
- break;
- }
- continue;
- }
-
- gossip_debug(GOSSIP_DEV_DEBUG, "*** signal on I/O wait -- aborting\n");
- break;
- }
-
- set_current_state(TASK_RUNNING);
- remove_wait_queue(&op->io_completion_waitq,
- &wait_entry);
-
- /* NOTE: for I/O operations we handle releasing the op
- * object except in the case of timeout. the reason we
- * can't free the op in timeout cases is that the op
- * service logic in the vfs retries operations using
- * the same op ptr, thus it can't be freed.
- */
- if (!timed_out)
- op_release(op);
- } else {
-
- /*
- * tell the vfs op waiting on a waitqueue that
- * this op is done
- */
- spin_lock(&op->lock);
- set_op_state_serviced(op);
- spin_unlock(&op->lock);
- /*
- * for every other operation (i.e. non-I/O), we need to
- * wake up the callers for downcall completion
- * notification
- */
- wake_up_interruptible(&op->waitq);
- }
- } else {
- /* ignore downcalls that we're not interested in */
- gossip_debug(GOSSIP_DEV_DEBUG,
- "WARNING: No one's waiting for tag %llu\n",
- llu(tag));
- }
- dev_req_release(buffer);
-
- return total_returned_size;
-}
-
-static ssize_t orangefs_devreq_write_iter(struct kiocb *iocb,
- struct iov_iter *iter)
-{
- return orangefs_devreq_writev(iocb->ki_filp,
- iter->iov,
- iter->nr_segs,
- &iocb->ki_pos);
-}
-
-/* Returns whether any FS are still pending remounted */
-static int mark_all_pending_mounts(void)
-{
- int unmounted = 1;
- struct orangefs_sb_info_s *orangefs_sb = NULL;
-
- spin_lock(&orangefs_superblocks_lock);
- list_for_each_entry(orangefs_sb, &orangefs_superblocks, list) {
- /* All of these file system require a remount */
- orangefs_sb->mount_pending = 1;
- unmounted = 0;
- }
- spin_unlock(&orangefs_superblocks_lock);
- return unmounted;
-}
-
-/*
- * Determine if a given file system needs to be remounted or not
- * Returns -1 on error
- * 0 if already mounted
- * 1 if needs remount
- */
-int fs_mount_pending(__s32 fsid)
-{
- int mount_pending = -1;
- struct orangefs_sb_info_s *orangefs_sb = NULL;
-
- spin_lock(&orangefs_superblocks_lock);
- list_for_each_entry(orangefs_sb, &orangefs_superblocks, list) {
- if (orangefs_sb->fs_id == fsid) {
- mount_pending = orangefs_sb->mount_pending;
- break;
- }
- }
- spin_unlock(&orangefs_superblocks_lock);
- return mount_pending;
-}
-
-/*
- * NOTE: gets called when the last reference to this device is dropped.
- * Using the open_access_count variable, we enforce a reference count
- * on this file so that it can be opened by only one process at a time.
- * the devreq_mutex is used to make sure all i/o has completed
- * before we call orangefs_bufmap_finalize, and similar such tricky
- * situations
- */
-static int orangefs_devreq_release(struct inode *inode, struct file *file)
-{
- int unmounted = 0;
-
- gossip_debug(GOSSIP_DEV_DEBUG,
- "%s:pvfs2-client-core: exiting, closing device\n",
- __func__);
-
- mutex_lock(&devreq_mutex);
- orangefs_bufmap_finalize();
-
- open_access_count--;
-
- unmounted = mark_all_pending_mounts();
- gossip_debug(GOSSIP_DEV_DEBUG, "ORANGEFS Device Close: Filesystem(s) %s\n",
- (unmounted ? "UNMOUNTED" : "MOUNTED"));
- mutex_unlock(&devreq_mutex);
-
- /*
- * Walk through the list of ops in the request list, mark them
- * as purged and wake them up.
- */
- purge_waiting_ops();
- /*
- * Walk through the hash table of in progress operations; mark
- * them as purged and wake them up
- */
- purge_inprogress_ops();
- gossip_debug(GOSSIP_DEV_DEBUG,
- "pvfs2-client-core: device close complete\n");
- return 0;
-}
-
-int is_daemon_in_service(void)
-{
- int in_service;
-
- /*
- * What this function does is checks if client-core is alive
- * based on the access count we maintain on the device.
- */
- mutex_lock(&devreq_mutex);
- in_service = open_access_count == 1 ? 0 : -EIO;
- mutex_unlock(&devreq_mutex);
- return in_service;
-}
-
-static inline long check_ioctl_command(unsigned int command)
-{
- /* Check for valid ioctl codes */
- if (_IOC_TYPE(command) != ORANGEFS_DEV_MAGIC) {
- gossip_err("device ioctl magic numbers don't match! Did you rebuild pvfs2-client-core/libpvfs2? [cmd %x, magic %x != %x]\n",
- command,
- _IOC_TYPE(command),
- ORANGEFS_DEV_MAGIC);
- return -EINVAL;
- }
- /* and valid ioctl commands */
- if (_IOC_NR(command) >= ORANGEFS_DEV_MAXNR || _IOC_NR(command) <= 0) {
- gossip_err("Invalid ioctl command number [%d >= %d]\n",
- _IOC_NR(command), ORANGEFS_DEV_MAXNR);
- return -ENOIOCTLCMD;
- }
- return 0;
-}
-
-static long dispatch_ioctl_command(unsigned int command, unsigned long arg)
-{
- static __s32 magic = ORANGEFS_DEVREQ_MAGIC;
- static __s32 max_up_size = MAX_ALIGNED_DEV_REQ_UPSIZE;
- static __s32 max_down_size = MAX_ALIGNED_DEV_REQ_DOWNSIZE;
- struct ORANGEFS_dev_map_desc user_desc;
- int ret = 0;
- struct dev_mask_info_s mask_info = { 0 };
- struct dev_mask2_info_s mask2_info = { 0, 0 };
- int upstream_kmod = 1;
- struct list_head *tmp = NULL;
- struct orangefs_sb_info_s *orangefs_sb = NULL;
-
- /* mtmoore: add locking here */
-
- switch (command) {
- case ORANGEFS_DEV_GET_MAGIC:
- return ((put_user(magic, (__s32 __user *) arg) == -EFAULT) ?
- -EIO :
- 0);
- case ORANGEFS_DEV_GET_MAX_UPSIZE:
- return ((put_user(max_up_size,
- (__s32 __user *) arg) == -EFAULT) ?
- -EIO :
- 0);
- case ORANGEFS_DEV_GET_MAX_DOWNSIZE:
- return ((put_user(max_down_size,
- (__s32 __user *) arg) == -EFAULT) ?
- -EIO :
- 0);
- case ORANGEFS_DEV_MAP:
- ret = copy_from_user(&user_desc,
- (struct ORANGEFS_dev_map_desc __user *)
- arg,
- sizeof(struct ORANGEFS_dev_map_desc));
- return ret ? -EIO : orangefs_bufmap_initialize(&user_desc);
- case ORANGEFS_DEV_REMOUNT_ALL:
- gossip_debug(GOSSIP_DEV_DEBUG,
- "orangefs_devreq_ioctl: got ORANGEFS_DEV_REMOUNT_ALL\n");
-
- /*
- * remount all mounted orangefs volumes to regain the lost
- * dynamic mount tables (if any) -- NOTE: this is done
- * without keeping the superblock list locked due to the
- * upcall/downcall waiting. also, the request semaphore is
- * used to ensure that no operations will be serviced until
- * all of the remounts are serviced (to avoid ops between
- * mounts to fail)
- */
- ret = mutex_lock_interruptible(&request_mutex);
- if (ret < 0)
- return ret;
- gossip_debug(GOSSIP_DEV_DEBUG,
- "orangefs_devreq_ioctl: priority remount in progress\n");
- list_for_each(tmp, &orangefs_superblocks) {
- orangefs_sb =
- list_entry(tmp, struct orangefs_sb_info_s, list);
- if (orangefs_sb && (orangefs_sb->sb)) {
- gossip_debug(GOSSIP_DEV_DEBUG,
- "Remounting SB %p\n",
- orangefs_sb);
-
- ret = orangefs_remount(orangefs_sb->sb);
- if (ret) {
- gossip_debug(GOSSIP_DEV_DEBUG,
- "SB %p remount failed\n",
- orangefs_sb);
- break;
- }
- }
- }
- gossip_debug(GOSSIP_DEV_DEBUG,
- "orangefs_devreq_ioctl: priority remount complete\n");
- mutex_unlock(&request_mutex);
- return ret;
-
- case ORANGEFS_DEV_UPSTREAM:
- ret = copy_to_user((void __user *)arg,
- &upstream_kmod,
- sizeof(upstream_kmod));
-
- if (ret != 0)
- return -EIO;
- else
- return ret;
-
- case ORANGEFS_DEV_CLIENT_MASK:
- ret = copy_from_user(&mask2_info,
- (void __user *)arg,
- sizeof(struct dev_mask2_info_s));
-
- if (ret != 0)
- return -EIO;
-
- client_debug_mask.mask1 = mask2_info.mask1_value;
- client_debug_mask.mask2 = mask2_info.mask2_value;
-
- pr_info("%s: client debug mask has been been received "
- ":%llx: :%llx:\n",
- __func__,
- (unsigned long long)client_debug_mask.mask1,
- (unsigned long long)client_debug_mask.mask2);
-
- return ret;
-
- case ORANGEFS_DEV_CLIENT_STRING:
- ret = copy_from_user(&client_debug_array_string,
- (void __user *)arg,
- ORANGEFS_MAX_DEBUG_STRING_LEN);
- if (ret != 0) {
- pr_info("%s: "
- "ORANGEFS_DEV_CLIENT_STRING: copy_from_user failed"
- "\n",
- __func__);
- return -EIO;
- }
-
- pr_info("%s: client debug array string has been been received."
- "\n",
- __func__);
-
- if (!help_string_initialized) {
-
- /* Free the "we don't know yet" default string... */
- kfree(debug_help_string);
-
- /* build a proper debug help string */
- if (orangefs_prepare_debugfs_help_string(0)) {
- gossip_err("%s: "
- "prepare_debugfs_help_string failed"
- "\n",
- __func__);
- return -EIO;
- }
-
- /* Replace the boilerplate boot-time debug-help file. */
- debugfs_remove(help_file_dentry);
-
- help_file_dentry =
- debugfs_create_file(
- ORANGEFS_KMOD_DEBUG_HELP_FILE,
- 0444,
- debug_dir,
- debug_help_string,
- &debug_help_fops);
-
- if (!help_file_dentry) {
- gossip_err("%s: debugfs_create_file failed for"
- " :%s:!\n",
- __func__,
- ORANGEFS_KMOD_DEBUG_HELP_FILE);
- return -EIO;
- }
- }
-
- debug_mask_to_string(&client_debug_mask, 1);
-
- debugfs_remove(client_debug_dentry);
-
- orangefs_client_debug_init();
-
- help_string_initialized++;
-
- return ret;
-
- case ORANGEFS_DEV_DEBUG:
- ret = copy_from_user(&mask_info,
- (void __user *)arg,
- sizeof(mask_info));
-
- if (ret != 0)
- return -EIO;
-
- if (mask_info.mask_type == KERNEL_MASK) {
- if ((mask_info.mask_value == 0)
- && (kernel_mask_set_mod_init)) {
- /*
- * the kernel debug mask was set when the
- * kernel module was loaded; don't override
- * it if the client-core was started without
- * a value for ORANGEFS_KMODMASK.
- */
- return 0;
- }
- debug_mask_to_string(&mask_info.mask_value,
- mask_info.mask_type);
- gossip_debug_mask = mask_info.mask_value;
- pr_info("ORANGEFS: kernel debug mask has been modified to "
- ":%s: :%llx:\n",
- kernel_debug_string,
- (unsigned long long)gossip_debug_mask);
- } else if (mask_info.mask_type == CLIENT_MASK) {
- debug_mask_to_string(&mask_info.mask_value,
- mask_info.mask_type);
- pr_info("ORANGEFS: client debug mask has been modified to"
- ":%s: :%llx:\n",
- client_debug_string,
- llu(mask_info.mask_value));
- } else {
- gossip_lerr("Invalid mask type....\n");
- return -EINVAL;
- }
-
- return ret;
-
- default:
- return -ENOIOCTLCMD;
- }
- return -ENOIOCTLCMD;
-}
-
-static long orangefs_devreq_ioctl(struct file *file,
- unsigned int command, unsigned long arg)
-{
- long ret;
-
- /* Check for properly constructed commands */
- ret = check_ioctl_command(command);
- if (ret < 0)
- return (int)ret;
-
- return (int)dispatch_ioctl_command(command, arg);
-}
-
-#ifdef CONFIG_COMPAT /* CONFIG_COMPAT is in .config */
-
-/* Compat structure for the ORANGEFS_DEV_MAP ioctl */
-struct ORANGEFS_dev_map_desc32 {
- compat_uptr_t ptr;
- __s32 total_size;
- __s32 size;
- __s32 count;
-};
-
-static unsigned long translate_dev_map26(unsigned long args, long *error)
-{
- struct ORANGEFS_dev_map_desc32 __user *p32 = (void __user *)args;
- /*
- * Depending on the architecture, allocate some space on the
- * user-call-stack based on our expected layout.
- */
- struct ORANGEFS_dev_map_desc __user *p =
- compat_alloc_user_space(sizeof(*p));
- compat_uptr_t addr;
-
- *error = 0;
- /* get the ptr from the 32 bit user-space */
- if (get_user(addr, &p32->ptr))
- goto err;
- /* try to put that into a 64-bit layout */
- if (put_user(compat_ptr(addr), &p->ptr))
- goto err;
- /* copy the remaining fields */
- if (copy_in_user(&p->total_size, &p32->total_size, sizeof(__s32)))
- goto err;
- if (copy_in_user(&p->size, &p32->size, sizeof(__s32)))
- goto err;
- if (copy_in_user(&p->count, &p32->count, sizeof(__s32)))
- goto err;
- return (unsigned long)p;
-err:
- *error = -EFAULT;
- return 0;
-}
-
-/*
- * 32 bit user-space apps' ioctl handlers when kernel modules
- * is compiled as a 64 bit one
- */
-static long orangefs_devreq_compat_ioctl(struct file *filp, unsigned int cmd,
- unsigned long args)
-{
- long ret;
- unsigned long arg = args;
-
- /* Check for properly constructed commands */
- ret = check_ioctl_command(cmd);
- if (ret < 0)
- return ret;
- if (cmd == ORANGEFS_DEV_MAP) {
- /*
- * convert the arguments to what we expect internally
- * in kernel space
- */
- arg = translate_dev_map26(args, &ret);
- if (ret < 0) {
- gossip_err("Could not translate dev map\n");
- return ret;
- }
- }
- /* no other ioctl requires translation */
- return dispatch_ioctl_command(cmd, arg);
-}
-
-#endif /* CONFIG_COMPAT is in .config */
-
-/*
- * The following two ioctl32 functions had been refactored into the above
- * CONFIG_COMPAT ifdef, but that was an over simplification that was
- * not noticed until we tried to compile on power pc...
- */
-#if (defined(CONFIG_COMPAT) && !defined(HAVE_REGISTER_IOCTL32_CONVERSION)) || !defined(CONFIG_COMPAT)
-static int orangefs_ioctl32_init(void)
-{
- return 0;
-}
-
-static void orangefs_ioctl32_cleanup(void)
-{
- return;
-}
-#endif
-
-/* the assigned character device major number */
-static int orangefs_dev_major;
-
-/*
- * Initialize orangefs device specific state:
- * Must be called at module load time only
- */
-int orangefs_dev_init(void)
-{
- int ret;
-
- /* register the ioctl32 sub-system */
- ret = orangefs_ioctl32_init();
- if (ret < 0)
- return ret;
-
- /* register orangefs-req device */
- orangefs_dev_major = register_chrdev(0,
- ORANGEFS_REQDEVICE_NAME,
- &orangefs_devreq_file_operations);
- if (orangefs_dev_major < 0) {
- gossip_debug(GOSSIP_DEV_DEBUG,
- "Failed to register /dev/%s (error %d)\n",
- ORANGEFS_REQDEVICE_NAME, orangefs_dev_major);
- orangefs_ioctl32_cleanup();
- return orangefs_dev_major;
- }
-
- gossip_debug(GOSSIP_DEV_DEBUG,
- "*** /dev/%s character device registered ***\n",
- ORANGEFS_REQDEVICE_NAME);
- gossip_debug(GOSSIP_DEV_DEBUG, "'mknod /dev/%s c %d 0'.\n",
- ORANGEFS_REQDEVICE_NAME, orangefs_dev_major);
- return 0;
-}
-
-void orangefs_dev_cleanup(void)
-{
- unregister_chrdev(orangefs_dev_major, ORANGEFS_REQDEVICE_NAME);
- gossip_debug(GOSSIP_DEV_DEBUG,
- "*** /dev/%s character device unregistered ***\n",
- ORANGEFS_REQDEVICE_NAME);
- /* unregister the ioctl32 sub-system */
- orangefs_ioctl32_cleanup();
-}
-
-static unsigned int orangefs_devreq_poll(struct file *file,
- struct poll_table_struct *poll_table)
-{
- int poll_revent_mask = 0;
-
- if (open_access_count == 1) {
- poll_wait(file, &orangefs_request_list_waitq, poll_table);
-
- spin_lock(&orangefs_request_list_lock);
- if (!list_empty(&orangefs_request_list))
- poll_revent_mask |= POLL_IN;
- spin_unlock(&orangefs_request_list_lock);
- }
- return poll_revent_mask;
-}
-
-const struct file_operations orangefs_devreq_file_operations = {
- .owner = THIS_MODULE,
- .read = orangefs_devreq_read,
- .write_iter = orangefs_devreq_write_iter,
- .open = orangefs_devreq_open,
- .release = orangefs_devreq_release,
- .unlocked_ioctl = orangefs_devreq_ioctl,
-
-#ifdef CONFIG_COMPAT /* CONFIG_COMPAT is in .config */
- .compat_ioctl = orangefs_devreq_compat_ioctl,
-#endif
- .poll = orangefs_devreq_poll
-};
*/
#include "protocol.h"
-#include "pvfs2-kernel.h"
-#include "pvfs2-bufmap.h"
+#include "orangefs-kernel.h"
+#include "orangefs-bufmap.h"
struct readdir_handle_s {
int buffer_index;
*/
#include "protocol.h"
-#include "pvfs2-kernel.h"
-#include "pvfs2-bufmap.h"
+#include "orangefs-kernel.h"
+#include "orangefs-bufmap.h"
#include <linux/fs.h>
#include <linux/pagemap.h>
}
if (ret < 0) {
- handle_io_error(); /* defined in pvfs2-kernel.h */
+ handle_io_error();
/*
* don't write an error to syslog on signaled operation
* termination unless we've got debugging turned on, as
*/
#include "protocol.h"
-#include "pvfs2-kernel.h"
-#include "pvfs2-bufmap.h"
+#include "orangefs-kernel.h"
+#include "orangefs-bufmap.h"
static int read_one_page(struct page *page)
{
* AIO. Modeled after NFS, they do this too.
*/
/*
- * static ssize_t pvfs2_direct_IO(int rw,
+ * static ssize_t orangefs_direct_IO(int rw,
* struct kiocb *iocb,
* struct iov_iter *iter,
* loff_t offset)
.readpages = orangefs_readpages,
.invalidatepage = orangefs_invalidatepage,
.releasepage = orangefs_releasepage,
-/* .direct_IO = pvfs2_direct_IO */
+/* .direct_IO = orangefs_direct_IO */
};
static int orangefs_setattr_size(struct inode *inode, struct iattr *iattr)
*/
#include "protocol.h"
-#include "pvfs2-kernel.h"
+#include "orangefs-kernel.h"
/*
* Get a newly allocated inode to go with a negative dentry.
--- /dev/null
+/*
+ * (C) 2001 Clemson University and The University of Chicago
+ *
+ * See COPYING in top-level directory.
+ */
+#include "protocol.h"
+#include "orangefs-kernel.h"
+#include "orangefs-bufmap.h"
+
+DECLARE_WAIT_QUEUE_HEAD(orangefs_bufmap_init_waitq);
+
+static struct orangefs_bufmap {
+ atomic_t refcnt;
+
+ int desc_size;
+ int desc_shift;
+ int desc_count;
+ int total_size;
+ int page_count;
+
+ struct page **page_array;
+ struct orangefs_bufmap_desc *desc_array;
+
+ /* array to track usage of buffer descriptors */
+ int *buffer_index_array;
+ spinlock_t buffer_index_lock;
+
+ /* array to track usage of buffer descriptors for readdir */
+ int readdir_index_array[ORANGEFS_READDIR_DEFAULT_DESC_COUNT];
+ spinlock_t readdir_index_lock;
+} *__orangefs_bufmap;
+
+static DEFINE_SPINLOCK(orangefs_bufmap_lock);
+
+static void
+orangefs_bufmap_unmap(struct orangefs_bufmap *bufmap)
+{
+ int i;
+
+ for (i = 0; i < bufmap->page_count; i++)
+ page_cache_release(bufmap->page_array[i]);
+}
+
+static void
+orangefs_bufmap_free(struct orangefs_bufmap *bufmap)
+{
+ kfree(bufmap->page_array);
+ kfree(bufmap->desc_array);
+ kfree(bufmap->buffer_index_array);
+ kfree(bufmap);
+}
+
+struct orangefs_bufmap *orangefs_bufmap_ref(void)
+{
+ struct orangefs_bufmap *bufmap = NULL;
+
+ spin_lock(&orangefs_bufmap_lock);
+ if (__orangefs_bufmap) {
+ bufmap = __orangefs_bufmap;
+ atomic_inc(&bufmap->refcnt);
+ }
+ spin_unlock(&orangefs_bufmap_lock);
+ return bufmap;
+}
+
+void orangefs_bufmap_unref(struct orangefs_bufmap *bufmap)
+{
+ if (atomic_dec_and_lock(&bufmap->refcnt, &orangefs_bufmap_lock)) {
+ __orangefs_bufmap = NULL;
+ spin_unlock(&orangefs_bufmap_lock);
+
+ orangefs_bufmap_unmap(bufmap);
+ orangefs_bufmap_free(bufmap);
+ }
+}
+
+inline int orangefs_bufmap_size_query(void)
+{
+ struct orangefs_bufmap *bufmap = orangefs_bufmap_ref();
+ int size = bufmap ? bufmap->desc_size : 0;
+
+ orangefs_bufmap_unref(bufmap);
+ return size;
+}
+
+inline int orangefs_bufmap_shift_query(void)
+{
+ struct orangefs_bufmap *bufmap = orangefs_bufmap_ref();
+ int shift = bufmap ? bufmap->desc_shift : 0;
+
+ orangefs_bufmap_unref(bufmap);
+ return shift;
+}
+
+static DECLARE_WAIT_QUEUE_HEAD(bufmap_waitq);
+static DECLARE_WAIT_QUEUE_HEAD(readdir_waitq);
+
+/*
+ * get_bufmap_init
+ *
+ * If bufmap_init is 1, then the shared memory system, including the
+ * buffer_index_array, is available. Otherwise, it is not.
+ *
+ * returns the value of bufmap_init
+ */
+int get_bufmap_init(void)
+{
+ return __orangefs_bufmap ? 1 : 0;
+}
+
+
+static struct orangefs_bufmap *
+orangefs_bufmap_alloc(struct ORANGEFS_dev_map_desc *user_desc)
+{
+ struct orangefs_bufmap *bufmap;
+
+ bufmap = kzalloc(sizeof(*bufmap), GFP_KERNEL);
+ if (!bufmap)
+ goto out;
+
+ atomic_set(&bufmap->refcnt, 1);
+ bufmap->total_size = user_desc->total_size;
+ bufmap->desc_count = user_desc->count;
+ bufmap->desc_size = user_desc->size;
+ bufmap->desc_shift = ilog2(bufmap->desc_size);
+
+ spin_lock_init(&bufmap->buffer_index_lock);
+ bufmap->buffer_index_array =
+ kcalloc(bufmap->desc_count, sizeof(int), GFP_KERNEL);
+ if (!bufmap->buffer_index_array) {
+ gossip_err("orangefs: could not allocate %d buffer indices\n",
+ bufmap->desc_count);
+ goto out_free_bufmap;
+ }
+ spin_lock_init(&bufmap->readdir_index_lock);
+
+ bufmap->desc_array =
+ kcalloc(bufmap->desc_count, sizeof(struct orangefs_bufmap_desc),
+ GFP_KERNEL);
+ if (!bufmap->desc_array) {
+ gossip_err("orangefs: could not allocate %d descriptors\n",
+ bufmap->desc_count);
+ goto out_free_index_array;
+ }
+
+ bufmap->page_count = bufmap->total_size / PAGE_SIZE;
+
+ /* allocate storage to track our page mappings */
+ bufmap->page_array =
+ kcalloc(bufmap->page_count, sizeof(struct page *), GFP_KERNEL);
+ if (!bufmap->page_array)
+ goto out_free_desc_array;
+
+ return bufmap;
+
+out_free_desc_array:
+ kfree(bufmap->desc_array);
+out_free_index_array:
+ kfree(bufmap->buffer_index_array);
+out_free_bufmap:
+ kfree(bufmap);
+out:
+ return NULL;
+}
+
+static int
+orangefs_bufmap_map(struct orangefs_bufmap *bufmap,
+ struct ORANGEFS_dev_map_desc *user_desc)
+{
+ int pages_per_desc = bufmap->desc_size / PAGE_SIZE;
+ int offset = 0, ret, i;
+
+ /* map the pages */
+ ret = get_user_pages_fast((unsigned long)user_desc->ptr,
+ bufmap->page_count, 1, bufmap->page_array);
+
+ if (ret < 0)
+ return ret;
+
+ if (ret != bufmap->page_count) {
+ gossip_err("orangefs error: asked for %d pages, only got %d.\n",
+ bufmap->page_count, ret);
+
+ for (i = 0; i < ret; i++) {
+ SetPageError(bufmap->page_array[i]);
+ page_cache_release(bufmap->page_array[i]);
+ }
+ return -ENOMEM;
+ }
+
+ /*
+ * ideally we want to get kernel space pointers for each page, but
+ * we can't kmap that many pages at once if highmem is being used.
+ * so instead, we just kmap/kunmap the page address each time the
+ * kaddr is needed.
+ */
+ for (i = 0; i < bufmap->page_count; i++)
+ flush_dcache_page(bufmap->page_array[i]);
+
+ /* build a list of available descriptors */
+ for (offset = 0, i = 0; i < bufmap->desc_count; i++) {
+ bufmap->desc_array[i].page_array = &bufmap->page_array[offset];
+ bufmap->desc_array[i].array_count = pages_per_desc;
+ bufmap->desc_array[i].uaddr =
+ (user_desc->ptr + (i * pages_per_desc * PAGE_SIZE));
+ offset += pages_per_desc;
+ }
+
+ return 0;
+}
+
+/*
+ * orangefs_bufmap_initialize()
+ *
+ * initializes the mapped buffer interface
+ *
+ * returns 0 on success, -errno on failure
+ */
+int orangefs_bufmap_initialize(struct ORANGEFS_dev_map_desc *user_desc)
+{
+ struct orangefs_bufmap *bufmap;
+ int ret = -EINVAL;
+
+ gossip_debug(GOSSIP_BUFMAP_DEBUG,
+ "orangefs_bufmap_initialize: called (ptr ("
+ "%p) sz (%d) cnt(%d).\n",
+ user_desc->ptr,
+ user_desc->size,
+ user_desc->count);
+
+ /*
+ * sanity check alignment and size of buffer that caller wants to
+ * work with
+ */
+ if (PAGE_ALIGN((unsigned long)user_desc->ptr) !=
+ (unsigned long)user_desc->ptr) {
+ gossip_err("orangefs error: memory alignment (front). %p\n",
+ user_desc->ptr);
+ goto out;
+ }
+
+ if (PAGE_ALIGN(((unsigned long)user_desc->ptr + user_desc->total_size))
+ != (unsigned long)(user_desc->ptr + user_desc->total_size)) {
+ gossip_err("orangefs error: memory alignment (back).(%p + %d)\n",
+ user_desc->ptr,
+ user_desc->total_size);
+ goto out;
+ }
+
+ if (user_desc->total_size != (user_desc->size * user_desc->count)) {
+ gossip_err("orangefs error: user provided an oddly sized buffer: (%d, %d, %d)\n",
+ user_desc->total_size,
+ user_desc->size,
+ user_desc->count);
+ goto out;
+ }
+
+ if ((user_desc->size % PAGE_SIZE) != 0) {
+ gossip_err("orangefs error: bufmap size not page size divisible (%d).\n",
+ user_desc->size);
+ goto out;
+ }
+
+ ret = -ENOMEM;
+ bufmap = orangefs_bufmap_alloc(user_desc);
+ if (!bufmap)
+ goto out;
+
+ ret = orangefs_bufmap_map(bufmap, user_desc);
+ if (ret)
+ goto out_free_bufmap;
+
+
+ spin_lock(&orangefs_bufmap_lock);
+ if (__orangefs_bufmap) {
+ spin_unlock(&orangefs_bufmap_lock);
+ gossip_err("orangefs: error: bufmap already initialized.\n");
+ ret = -EALREADY;
+ goto out_unmap_bufmap;
+ }
+ __orangefs_bufmap = bufmap;
+ spin_unlock(&orangefs_bufmap_lock);
+
+ /*
+ * If there are operations in orangefs_bufmap_init_waitq, wake them up.
+ * This scenario occurs when the client-core is restarted and I/O
+ * requests in the in-progress or waiting tables are restarted. I/O
+ * requests cannot be restarted until the shared memory system is
+ * completely re-initialized, so we put the I/O requests in this
+ * waitq until initialization has completed. NOTE: the I/O requests
+ * are also on a timer, so they don't wait forever just in case the
+ * client-core doesn't come back up.
+ */
+ wake_up_interruptible(&orangefs_bufmap_init_waitq);
+
+ gossip_debug(GOSSIP_BUFMAP_DEBUG,
+ "orangefs_bufmap_initialize: exiting normally\n");
+ return 0;
+
+out_unmap_bufmap:
+ orangefs_bufmap_unmap(bufmap);
+out_free_bufmap:
+ orangefs_bufmap_free(bufmap);
+out:
+ return ret;
+}
+
+/*
+ * orangefs_bufmap_finalize()
+ *
+ * shuts down the mapped buffer interface and releases any resources
+ * associated with it
+ *
+ * no return value
+ */
+void orangefs_bufmap_finalize(void)
+{
+ gossip_debug(GOSSIP_BUFMAP_DEBUG, "orangefs_bufmap_finalize: called\n");
+ BUG_ON(!__orangefs_bufmap);
+ orangefs_bufmap_unref(__orangefs_bufmap);
+ gossip_debug(GOSSIP_BUFMAP_DEBUG,
+ "orangefs_bufmap_finalize: exiting normally\n");
+}
+
+struct slot_args {
+ int slot_count;
+ int *slot_array;
+ spinlock_t *slot_lock;
+ wait_queue_head_t *slot_wq;
+};
+
+static int wait_for_a_slot(struct slot_args *slargs, int *buffer_index)
+{
+ int ret = -1;
+ int i = 0;
+ DECLARE_WAITQUEUE(my_wait, current);
+
+
+ add_wait_queue_exclusive(slargs->slot_wq, &my_wait);
+
+ while (1) {
+ set_current_state(TASK_INTERRUPTIBLE);
+
+ /*
+ * check for available desc, slot_lock is the appropriate
+ * index_lock
+ */
+ spin_lock(slargs->slot_lock);
+ for (i = 0; i < slargs->slot_count; i++)
+ if (slargs->slot_array[i] == 0) {
+ slargs->slot_array[i] = 1;
+ *buffer_index = i;
+ ret = 0;
+ break;
+ }
+ spin_unlock(slargs->slot_lock);
+
+ /* if we acquired a buffer, then break out of while */
+ if (ret == 0)
+ break;
+
+ if (!signal_pending(current)) {
+ int timeout =
+ MSECS_TO_JIFFIES(1000 * slot_timeout_secs);
+ gossip_debug(GOSSIP_BUFMAP_DEBUG,
+ "[BUFMAP]: waiting %d "
+ "seconds for a slot\n",
+ slot_timeout_secs);
+ if (!schedule_timeout(timeout)) {
+ gossip_debug(GOSSIP_BUFMAP_DEBUG,
+ "*** wait_for_a_slot timed out\n");
+ ret = -ETIMEDOUT;
+ break;
+ }
+ gossip_debug(GOSSIP_BUFMAP_DEBUG,
+ "[BUFMAP]: woken up by a slot becoming available.\n");
+ continue;
+ }
+
+ gossip_debug(GOSSIP_BUFMAP_DEBUG, "orangefs: %s interrupted.\n",
+ __func__);
+ ret = -EINTR;
+ break;
+ }
+
+ set_current_state(TASK_RUNNING);
+ remove_wait_queue(slargs->slot_wq, &my_wait);
+ return ret;
+}
+
+static void put_back_slot(struct slot_args *slargs, int buffer_index)
+{
+ /* slot_lock is the appropriate index_lock */
+ spin_lock(slargs->slot_lock);
+ if (buffer_index < 0 || buffer_index >= slargs->slot_count) {
+ spin_unlock(slargs->slot_lock);
+ return;
+ }
+
+ /* put the desc back on the queue */
+ slargs->slot_array[buffer_index] = 0;
+ spin_unlock(slargs->slot_lock);
+
+ /* wake up anyone who may be sleeping on the queue */
+ wake_up_interruptible(slargs->slot_wq);
+}
+
+/*
+ * orangefs_bufmap_get()
+ *
+ * gets a free mapped buffer descriptor, will sleep until one becomes
+ * available if necessary
+ *
+ * returns 0 on success, -errno on failure
+ */
+int orangefs_bufmap_get(struct orangefs_bufmap **mapp, int *buffer_index)
+{
+ struct orangefs_bufmap *bufmap = orangefs_bufmap_ref();
+ struct slot_args slargs;
+ int ret;
+
+ if (!bufmap) {
+ gossip_err("orangefs: please confirm that pvfs2-client daemon is running.\n");
+ return -EIO;
+ }
+
+ slargs.slot_count = bufmap->desc_count;
+ slargs.slot_array = bufmap->buffer_index_array;
+ slargs.slot_lock = &bufmap->buffer_index_lock;
+ slargs.slot_wq = &bufmap_waitq;
+ ret = wait_for_a_slot(&slargs, buffer_index);
+ if (ret)
+ orangefs_bufmap_unref(bufmap);
+ *mapp = bufmap;
+ return ret;
+}
+
+/*
+ * orangefs_bufmap_put()
+ *
+ * returns a mapped buffer descriptor to the collection
+ *
+ * no return value
+ */
+void orangefs_bufmap_put(struct orangefs_bufmap *bufmap, int buffer_index)
+{
+ struct slot_args slargs;
+
+ slargs.slot_count = bufmap->desc_count;
+ slargs.slot_array = bufmap->buffer_index_array;
+ slargs.slot_lock = &bufmap->buffer_index_lock;
+ slargs.slot_wq = &bufmap_waitq;
+ put_back_slot(&slargs, buffer_index);
+ orangefs_bufmap_unref(bufmap);
+}
+
+/*
+ * readdir_index_get()
+ *
+ * gets a free descriptor, will sleep until one becomes
+ * available if necessary.
+ * Although the readdir buffers are not mapped into kernel space
+ * we could do that at a later point of time. Regardless, these
+ * indices are used by the client-core.
+ *
+ * returns 0 on success, -errno on failure
+ */
+int readdir_index_get(struct orangefs_bufmap **mapp, int *buffer_index)
+{
+ struct orangefs_bufmap *bufmap = orangefs_bufmap_ref();
+ struct slot_args slargs;
+ int ret;
+
+ if (!bufmap) {
+ gossip_err("orangefs: please confirm that pvfs2-client daemon is running.\n");
+ return -EIO;
+ }
+
+ slargs.slot_count = ORANGEFS_READDIR_DEFAULT_DESC_COUNT;
+ slargs.slot_array = bufmap->readdir_index_array;
+ slargs.slot_lock = &bufmap->readdir_index_lock;
+ slargs.slot_wq = &readdir_waitq;
+ ret = wait_for_a_slot(&slargs, buffer_index);
+ if (ret)
+ orangefs_bufmap_unref(bufmap);
+ *mapp = bufmap;
+ return ret;
+}
+
+void readdir_index_put(struct orangefs_bufmap *bufmap, int buffer_index)
+{
+ struct slot_args slargs;
+
+ slargs.slot_count = ORANGEFS_READDIR_DEFAULT_DESC_COUNT;
+ slargs.slot_array = bufmap->readdir_index_array;
+ slargs.slot_lock = &bufmap->readdir_index_lock;
+ slargs.slot_wq = &readdir_waitq;
+ put_back_slot(&slargs, buffer_index);
+ orangefs_bufmap_unref(bufmap);
+}
+
+int orangefs_bufmap_copy_from_iovec(struct orangefs_bufmap *bufmap,
+ struct iov_iter *iter,
+ int buffer_index,
+ size_t size)
+{
+ struct orangefs_bufmap_desc *to = &bufmap->desc_array[buffer_index];
+ int i;
+
+ gossip_debug(GOSSIP_BUFMAP_DEBUG,
+ "%s: buffer_index:%d: size:%zu:\n",
+ __func__, buffer_index, size);
+
+
+ for (i = 0; size; i++) {
+ struct page *page = to->page_array[i];
+ size_t n = size;
+ if (n > PAGE_SIZE)
+ n = PAGE_SIZE;
+ n = copy_page_from_iter(page, 0, n, iter);
+ if (!n)
+ return -EFAULT;
+ size -= n;
+ }
+ return 0;
+
+}
+
+/*
+ * Iterate through the array of pages containing the bytes from
+ * a file being read.
+ *
+ */
+int orangefs_bufmap_copy_to_iovec(struct orangefs_bufmap *bufmap,
+ struct iov_iter *iter,
+ int buffer_index,
+ size_t size)
+{
+ struct orangefs_bufmap_desc *from = &bufmap->desc_array[buffer_index];
+ int i;
+
+ gossip_debug(GOSSIP_BUFMAP_DEBUG,
+ "%s: buffer_index:%d: size:%zu:\n",
+ __func__, buffer_index, size);
+
+
+ for (i = 0; size; i++) {
+ struct page *page = from->page_array[i];
+ size_t n = size;
+ if (n > PAGE_SIZE)
+ n = PAGE_SIZE;
+ n = copy_page_to_iter(page, 0, n, iter);
+ if (!n)
+ return -EFAULT;
+ size -= n;
+ }
+ return 0;
+}
--- /dev/null
+/*
+ * (C) 2001 Clemson University and The University of Chicago
+ *
+ * See COPYING in top-level directory.
+ */
+
+#ifndef __ORANGEFS_BUFMAP_H
+#define __ORANGEFS_BUFMAP_H
+
+/* used to describe mapped buffers */
+struct orangefs_bufmap_desc {
+ void *uaddr; /* user space address pointer */
+ struct page **page_array; /* array of mapped pages */
+ int array_count; /* size of above arrays */
+ struct list_head list_link;
+};
+
+struct orangefs_bufmap;
+
+struct orangefs_bufmap *orangefs_bufmap_ref(void);
+void orangefs_bufmap_unref(struct orangefs_bufmap *bufmap);
+
+/*
+ * orangefs_bufmap_size_query is now an inline function because buffer
+ * sizes are not hardcoded
+ */
+int orangefs_bufmap_size_query(void);
+
+int orangefs_bufmap_shift_query(void);
+
+int orangefs_bufmap_initialize(struct ORANGEFS_dev_map_desc *user_desc);
+
+int get_bufmap_init(void);
+
+void orangefs_bufmap_finalize(void);
+
+int orangefs_bufmap_get(struct orangefs_bufmap **mapp, int *buffer_index);
+
+void orangefs_bufmap_put(struct orangefs_bufmap *bufmap, int buffer_index);
+
+int readdir_index_get(struct orangefs_bufmap **mapp, int *buffer_index);
+
+void readdir_index_put(struct orangefs_bufmap *bufmap, int buffer_index);
+
+int orangefs_bufmap_copy_from_iovec(struct orangefs_bufmap *bufmap,
+ struct iov_iter *iter,
+ int buffer_index,
+ size_t size);
+
+int orangefs_bufmap_copy_to_iovec(struct orangefs_bufmap *bufmap,
+ struct iov_iter *iter,
+ int buffer_index,
+ size_t size);
+
+size_t orangefs_bufmap_copy_to_user_task_iovec(struct task_struct *tsk,
+ struct iovec *iovec,
+ unsigned long nr_segs,
+ struct orangefs_bufmap *bufmap,
+ int buffer_index,
+ size_t bytes_to_be_copied);
+
+#endif /* __ORANGEFS_BUFMAP_H */
--- /dev/null
+/*
+ * (C) 2001 Clemson University and The University of Chicago
+ *
+ * See COPYING in top-level directory.
+ */
+
+#include "protocol.h"
+#include "orangefs-kernel.h"
+
+/* tags assigned to kernel upcall operations */
+static __u64 next_tag_value;
+static DEFINE_SPINLOCK(next_tag_value_lock);
+
+/* the orangefs memory caches */
+
+/* a cache for orangefs upcall/downcall operations */
+static struct kmem_cache *op_cache;
+
+/* a cache for device (/dev/pvfs2-req) communication */
+static struct kmem_cache *dev_req_cache;
+
+/* a cache for orangefs_kiocb objects (i.e orangefs iocb structures ) */
+static struct kmem_cache *orangefs_kiocb_cache;
+
+int op_cache_initialize(void)
+{
+ op_cache = kmem_cache_create("orangefs_op_cache",
+ sizeof(struct orangefs_kernel_op_s),
+ 0,
+ ORANGEFS_CACHE_CREATE_FLAGS,
+ NULL);
+
+ if (!op_cache) {
+ gossip_err("Cannot create orangefs_op_cache\n");
+ return -ENOMEM;
+ }
+
+ /* initialize our atomic tag counter */
+ spin_lock(&next_tag_value_lock);
+ next_tag_value = 100;
+ spin_unlock(&next_tag_value_lock);
+ return 0;
+}
+
+int op_cache_finalize(void)
+{
+ kmem_cache_destroy(op_cache);
+ return 0;
+}
+
+char *get_opname_string(struct orangefs_kernel_op_s *new_op)
+{
+ if (new_op) {
+ __s32 type = new_op->upcall.type;
+
+ if (type == ORANGEFS_VFS_OP_FILE_IO)
+ return "OP_FILE_IO";
+ else if (type == ORANGEFS_VFS_OP_LOOKUP)
+ return "OP_LOOKUP";
+ else if (type == ORANGEFS_VFS_OP_CREATE)
+ return "OP_CREATE";
+ else if (type == ORANGEFS_VFS_OP_GETATTR)
+ return "OP_GETATTR";
+ else if (type == ORANGEFS_VFS_OP_REMOVE)
+ return "OP_REMOVE";
+ else if (type == ORANGEFS_VFS_OP_MKDIR)
+ return "OP_MKDIR";
+ else if (type == ORANGEFS_VFS_OP_READDIR)
+ return "OP_READDIR";
+ else if (type == ORANGEFS_VFS_OP_READDIRPLUS)
+ return "OP_READDIRPLUS";
+ else if (type == ORANGEFS_VFS_OP_SETATTR)
+ return "OP_SETATTR";
+ else if (type == ORANGEFS_VFS_OP_SYMLINK)
+ return "OP_SYMLINK";
+ else if (type == ORANGEFS_VFS_OP_RENAME)
+ return "OP_RENAME";
+ else if (type == ORANGEFS_VFS_OP_STATFS)
+ return "OP_STATFS";
+ else if (type == ORANGEFS_VFS_OP_TRUNCATE)
+ return "OP_TRUNCATE";
+ else if (type == ORANGEFS_VFS_OP_MMAP_RA_FLUSH)
+ return "OP_MMAP_RA_FLUSH";
+ else if (type == ORANGEFS_VFS_OP_FS_MOUNT)
+ return "OP_FS_MOUNT";
+ else if (type == ORANGEFS_VFS_OP_FS_UMOUNT)
+ return "OP_FS_UMOUNT";
+ else if (type == ORANGEFS_VFS_OP_GETXATTR)
+ return "OP_GETXATTR";
+ else if (type == ORANGEFS_VFS_OP_SETXATTR)
+ return "OP_SETXATTR";
+ else if (type == ORANGEFS_VFS_OP_LISTXATTR)
+ return "OP_LISTXATTR";
+ else if (type == ORANGEFS_VFS_OP_REMOVEXATTR)
+ return "OP_REMOVEXATTR";
+ else if (type == ORANGEFS_VFS_OP_PARAM)
+ return "OP_PARAM";
+ else if (type == ORANGEFS_VFS_OP_PERF_COUNT)
+ return "OP_PERF_COUNT";
+ else if (type == ORANGEFS_VFS_OP_CANCEL)
+ return "OP_CANCEL";
+ else if (type == ORANGEFS_VFS_OP_FSYNC)
+ return "OP_FSYNC";
+ else if (type == ORANGEFS_VFS_OP_FSKEY)
+ return "OP_FSKEY";
+ }
+ return "OP_UNKNOWN?";
+}
+
+struct orangefs_kernel_op_s *op_alloc(__s32 type)
+{
+ struct orangefs_kernel_op_s *new_op = NULL;
+
+ new_op = kmem_cache_alloc(op_cache, ORANGEFS_CACHE_ALLOC_FLAGS);
+ if (new_op) {
+ memset(new_op, 0, sizeof(struct orangefs_kernel_op_s));
+
+ INIT_LIST_HEAD(&new_op->list);
+ spin_lock_init(&new_op->lock);
+ init_waitqueue_head(&new_op->waitq);
+
+ init_waitqueue_head(&new_op->io_completion_waitq);
+ atomic_set(&new_op->aio_ref_count, 0);
+
+ orangefs_op_initialize(new_op);
+
+ /* initialize the op specific tag and upcall credentials */
+ spin_lock(&next_tag_value_lock);
+ new_op->tag = next_tag_value++;
+ if (next_tag_value == 0)
+ next_tag_value = 100;
+ spin_unlock(&next_tag_value_lock);
+ new_op->upcall.type = type;
+ new_op->attempts = 0;
+ gossip_debug(GOSSIP_CACHE_DEBUG,
+ "Alloced OP (%p: %llu %s)\n",
+ new_op,
+ llu(new_op->tag),
+ get_opname_string(new_op));
+
+ new_op->upcall.uid = from_kuid(current_user_ns(),
+ current_fsuid());
+
+ new_op->upcall.gid = from_kgid(current_user_ns(),
+ current_fsgid());
+ } else {
+ gossip_err("op_alloc: kmem_cache_alloc failed!\n");
+ }
+ return new_op;
+}
+
+void op_release(struct orangefs_kernel_op_s *orangefs_op)
+{
+ if (orangefs_op) {
+ gossip_debug(GOSSIP_CACHE_DEBUG,
+ "Releasing OP (%p: %llu)\n",
+ orangefs_op,
+ llu(orangefs_op->tag));
+ orangefs_op_initialize(orangefs_op);
+ kmem_cache_free(op_cache, orangefs_op);
+ } else {
+ gossip_err("NULL pointer in op_release\n");
+ }
+}
+
+int dev_req_cache_initialize(void)
+{
+ dev_req_cache = kmem_cache_create("orangefs_devreqcache",
+ MAX_ALIGNED_DEV_REQ_DOWNSIZE,
+ 0,
+ ORANGEFS_CACHE_CREATE_FLAGS,
+ NULL);
+
+ if (!dev_req_cache) {
+ gossip_err("Cannot create orangefs_dev_req_cache\n");
+ return -ENOMEM;
+ }
+ return 0;
+}
+
+int dev_req_cache_finalize(void)
+{
+ kmem_cache_destroy(dev_req_cache);
+ return 0;
+}
+
+void *dev_req_alloc(void)
+{
+ void *buffer;
+
+ buffer = kmem_cache_alloc(dev_req_cache, ORANGEFS_CACHE_ALLOC_FLAGS);
+ if (buffer == NULL)
+ gossip_err("Failed to allocate from dev_req_cache\n");
+ else
+ memset(buffer, 0, sizeof(MAX_ALIGNED_DEV_REQ_DOWNSIZE));
+ return buffer;
+}
+
+void dev_req_release(void *buffer)
+{
+ if (buffer)
+ kmem_cache_free(dev_req_cache, buffer);
+ else
+ gossip_err("NULL pointer passed to dev_req_release\n");
+}
+
+int kiocb_cache_initialize(void)
+{
+ orangefs_kiocb_cache = kmem_cache_create("orangefs_kiocbcache",
+ sizeof(struct orangefs_kiocb_s),
+ 0,
+ ORANGEFS_CACHE_CREATE_FLAGS,
+ NULL);
+
+ if (!orangefs_kiocb_cache) {
+ gossip_err("Cannot create orangefs_kiocb_cache!\n");
+ return -ENOMEM;
+ }
+ return 0;
+}
+
+int kiocb_cache_finalize(void)
+{
+ kmem_cache_destroy(orangefs_kiocb_cache);
+ return 0;
+}
+
+struct orangefs_kiocb_s *kiocb_alloc(void)
+{
+ struct orangefs_kiocb_s *x = NULL;
+
+ x = kmem_cache_alloc(orangefs_kiocb_cache, ORANGEFS_CACHE_ALLOC_FLAGS);
+ if (x == NULL)
+ gossip_err("kiocb_alloc: kmem_cache_alloc failed!\n");
+ else
+ memset(x, 0, sizeof(struct orangefs_kiocb_s));
+ return x;
+}
+
+void kiocb_release(struct orangefs_kiocb_s *x)
+{
+ if (x)
+ kmem_cache_free(orangefs_kiocb_cache, x);
+ else
+ gossip_err("kiocb_release: kmem_cache_free NULL pointer!\n");
+}
--- /dev/null
+/*
+ * (C) 2001 Clemson University and The University of Chicago
+ *
+ * See COPYING in top-level directory.
+ */
+
+/* This file just defines debugging masks to be used with the gossip
+ * logging utility. All debugging masks for ORANGEFS are kept here to make
+ * sure we don't have collisions.
+ */
+
+#ifndef __ORANGEFS_DEBUG_H
+#define __ORANGEFS_DEBUG_H
+
+#ifdef __KERNEL__
+#include <linux/types.h>
+#else
+#include <stdint.h>
+#endif
+
+#define GOSSIP_NO_DEBUG (__u64)0
+#define GOSSIP_BMI_DEBUG_TCP ((__u64)1 << 0)
+#define GOSSIP_BMI_DEBUG_CONTROL ((__u64)1 << 1)
+#define GOSSIP_BMI_DEBUG_OFFSETS ((__u64)1 << 2)
+#define GOSSIP_BMI_DEBUG_GM ((__u64)1 << 3)
+#define GOSSIP_JOB_DEBUG ((__u64)1 << 4)
+#define GOSSIP_SERVER_DEBUG ((__u64)1 << 5)
+#define GOSSIP_STO_DEBUG_CTRL ((__u64)1 << 6)
+#define GOSSIP_STO_DEBUG_DEFAULT ((__u64)1 << 7)
+#define GOSSIP_FLOW_DEBUG ((__u64)1 << 8)
+#define GOSSIP_BMI_DEBUG_GM_MEM ((__u64)1 << 9)
+#define GOSSIP_REQUEST_DEBUG ((__u64)1 << 10)
+#define GOSSIP_FLOW_PROTO_DEBUG ((__u64)1 << 11)
+#define GOSSIP_NCACHE_DEBUG ((__u64)1 << 12)
+#define GOSSIP_CLIENT_DEBUG ((__u64)1 << 13)
+#define GOSSIP_REQ_SCHED_DEBUG ((__u64)1 << 14)
+#define GOSSIP_ACACHE_DEBUG ((__u64)1 << 15)
+#define GOSSIP_TROVE_DEBUG ((__u64)1 << 16)
+#define GOSSIP_TROVE_OP_DEBUG ((__u64)1 << 17)
+#define GOSSIP_DIST_DEBUG ((__u64)1 << 18)
+#define GOSSIP_BMI_DEBUG_IB ((__u64)1 << 19)
+#define GOSSIP_DBPF_ATTRCACHE_DEBUG ((__u64)1 << 20)
+#define GOSSIP_MMAP_RCACHE_DEBUG ((__u64)1 << 21)
+#define GOSSIP_LOOKUP_DEBUG ((__u64)1 << 22)
+#define GOSSIP_REMOVE_DEBUG ((__u64)1 << 23)
+#define GOSSIP_GETATTR_DEBUG ((__u64)1 << 24)
+#define GOSSIP_READDIR_DEBUG ((__u64)1 << 25)
+#define GOSSIP_IO_DEBUG ((__u64)1 << 26)
+#define GOSSIP_DBPF_OPEN_CACHE_DEBUG ((__u64)1 << 27)
+#define GOSSIP_PERMISSIONS_DEBUG ((__u64)1 << 28)
+#define GOSSIP_CANCEL_DEBUG ((__u64)1 << 29)
+#define GOSSIP_MSGPAIR_DEBUG ((__u64)1 << 30)
+#define GOSSIP_CLIENTCORE_DEBUG ((__u64)1 << 31)
+#define GOSSIP_CLIENTCORE_TIMING_DEBUG ((__u64)1 << 32)
+#define GOSSIP_SETATTR_DEBUG ((__u64)1 << 33)
+#define GOSSIP_MKDIR_DEBUG ((__u64)1 << 34)
+#define GOSSIP_VARSTRIP_DEBUG ((__u64)1 << 35)
+#define GOSSIP_GETEATTR_DEBUG ((__u64)1 << 36)
+#define GOSSIP_SETEATTR_DEBUG ((__u64)1 << 37)
+#define GOSSIP_ENDECODE_DEBUG ((__u64)1 << 38)
+#define GOSSIP_DELEATTR_DEBUG ((__u64)1 << 39)
+#define GOSSIP_ACCESS_DEBUG ((__u64)1 << 40)
+#define GOSSIP_ACCESS_DETAIL_DEBUG ((__u64)1 << 41)
+#define GOSSIP_LISTEATTR_DEBUG ((__u64)1 << 42)
+#define GOSSIP_PERFCOUNTER_DEBUG ((__u64)1 << 43)
+#define GOSSIP_STATE_MACHINE_DEBUG ((__u64)1 << 44)
+#define GOSSIP_DBPF_KEYVAL_DEBUG ((__u64)1 << 45)
+#define GOSSIP_LISTATTR_DEBUG ((__u64)1 << 46)
+#define GOSSIP_DBPF_COALESCE_DEBUG ((__u64)1 << 47)
+#define GOSSIP_ACCESS_HOSTNAMES ((__u64)1 << 48)
+#define GOSSIP_FSCK_DEBUG ((__u64)1 << 49)
+#define GOSSIP_BMI_DEBUG_MX ((__u64)1 << 50)
+#define GOSSIP_BSTREAM_DEBUG ((__u64)1 << 51)
+#define GOSSIP_BMI_DEBUG_PORTALS ((__u64)1 << 52)
+#define GOSSIP_USER_DEV_DEBUG ((__u64)1 << 53)
+#define GOSSIP_DIRECTIO_DEBUG ((__u64)1 << 54)
+#define GOSSIP_MGMT_DEBUG ((__u64)1 << 55)
+#define GOSSIP_MIRROR_DEBUG ((__u64)1 << 56)
+#define GOSSIP_WIN_CLIENT_DEBUG ((__u64)1 << 57)
+#define GOSSIP_SECURITY_DEBUG ((__u64)1 << 58)
+#define GOSSIP_USRINT_DEBUG ((__u64)1 << 59)
+#define GOSSIP_RCACHE_DEBUG ((__u64)1 << 60)
+#define GOSSIP_SECCACHE_DEBUG ((__u64)1 << 61)
+
+#define GOSSIP_BMI_DEBUG_ALL ((__u64) (GOSSIP_BMI_DEBUG_TCP + \
+ GOSSIP_BMI_DEBUG_CONTROL + \
+ GOSSIP_BMI_DEBUG_GM + \
+ GOSSIP_BMI_DEBUG_OFFSETS + \
+ GOSSIP_BMI_DEBUG_IB + \
+ GOSSIP_BMI_DEBUG_MX + \
+ GOSSIP_BMI_DEBUG_PORTALS))
+
+const char *ORANGEFS_debug_get_next_debug_keyword(int position);
+
+#define GOSSIP_SUPER_DEBUG ((__u64)1 << 0)
+#define GOSSIP_INODE_DEBUG ((__u64)1 << 1)
+#define GOSSIP_FILE_DEBUG ((__u64)1 << 2)
+#define GOSSIP_DIR_DEBUG ((__u64)1 << 3)
+#define GOSSIP_UTILS_DEBUG ((__u64)1 << 4)
+#define GOSSIP_WAIT_DEBUG ((__u64)1 << 5)
+#define GOSSIP_ACL_DEBUG ((__u64)1 << 6)
+#define GOSSIP_DCACHE_DEBUG ((__u64)1 << 7)
+#define GOSSIP_DEV_DEBUG ((__u64)1 << 8)
+#define GOSSIP_NAME_DEBUG ((__u64)1 << 9)
+#define GOSSIP_BUFMAP_DEBUG ((__u64)1 << 10)
+#define GOSSIP_CACHE_DEBUG ((__u64)1 << 11)
+#define GOSSIP_DEBUGFS_DEBUG ((__u64)1 << 12)
+#define GOSSIP_XATTR_DEBUG ((__u64)1 << 13)
+#define GOSSIP_INIT_DEBUG ((__u64)1 << 14)
+#define GOSSIP_SYSFS_DEBUG ((__u64)1 << 15)
+
+#define GOSSIP_MAX_NR 16
+#define GOSSIP_MAX_DEBUG (((__u64)1 << GOSSIP_MAX_NR) - 1)
+
+/*function prototypes*/
+__u64 ORANGEFS_kmod_eventlog_to_mask(const char *event_logging);
+__u64 ORANGEFS_debug_eventlog_to_mask(const char *event_logging);
+char *ORANGEFS_debug_mask_to_eventlog(__u64 mask);
+char *ORANGEFS_kmod_mask_to_eventlog(__u64 mask);
+
+/* a private internal type */
+struct __keyword_mask_s {
+ const char *keyword;
+ __u64 mask_val;
+};
+
+#define __DEBUG_ALL ((__u64) -1)
+
+/* map all config keywords to pvfs2 debug masks here */
+static struct __keyword_mask_s s_keyword_mask_map[] = {
+ /* Log trove debugging info. Same as 'trove'. */
+ {"storage", GOSSIP_TROVE_DEBUG},
+ /* Log trove debugging info. Same as 'storage'. */
+ {"trove", GOSSIP_TROVE_DEBUG},
+ /* Log trove operations. */
+ {"trove_op", GOSSIP_TROVE_OP_DEBUG},
+ /* Log network debug info. */
+ {"network", GOSSIP_BMI_DEBUG_ALL},
+ /* Log server info, including new operations. */
+ {"server", GOSSIP_SERVER_DEBUG},
+ /* Log client sysint info. This is only useful for the client. */
+ {"client", GOSSIP_CLIENT_DEBUG},
+ /* Debug the varstrip distribution */
+ {"varstrip", GOSSIP_VARSTRIP_DEBUG},
+ /* Log job info */
+ {"job", GOSSIP_JOB_DEBUG},
+ /* Debug PINT_process_request calls. EXTREMELY verbose! */
+ {"request", GOSSIP_REQUEST_DEBUG},
+ /* Log request scheduler events */
+ {"reqsched", GOSSIP_REQ_SCHED_DEBUG},
+ /* Log the flow protocol events, including flowproto_multiqueue */
+ {"flowproto", GOSSIP_FLOW_PROTO_DEBUG},
+ /* Log flow calls */
+ {"flow", GOSSIP_FLOW_DEBUG},
+ /* Debug the client name cache. Only useful on the client. */
+ {"ncache", GOSSIP_NCACHE_DEBUG},
+ /* Debug read-ahead cache events. Only useful on the client. */
+ {"mmaprcache", GOSSIP_MMAP_RCACHE_DEBUG},
+ /* Debug the attribute cache. Only useful on the client. */
+ {"acache", GOSSIP_ACACHE_DEBUG},
+ /* Log/Debug distribution calls */
+ {"distribution", GOSSIP_DIST_DEBUG},
+ /* Debug the server-side dbpf attribute cache */
+ {"dbpfattrcache", GOSSIP_DBPF_ATTRCACHE_DEBUG},
+ /* Debug the client lookup state machine. */
+ {"lookup", GOSSIP_LOOKUP_DEBUG},
+ /* Debug the client remove state macine. */
+ {"remove", GOSSIP_REMOVE_DEBUG},
+ /* Debug the server getattr state machine. */
+ {"getattr", GOSSIP_GETATTR_DEBUG},
+ /* Debug the server setattr state machine. */
+ {"setattr", GOSSIP_SETATTR_DEBUG},
+ /* vectored getattr server state machine */
+ {"listattr", GOSSIP_LISTATTR_DEBUG},
+ /* Debug the client and server get ext attributes SM. */
+ {"geteattr", GOSSIP_GETEATTR_DEBUG},
+ /* Debug the client and server set ext attributes SM. */
+ {"seteattr", GOSSIP_SETEATTR_DEBUG},
+ /* Debug the readdir operation (client and server) */
+ {"readdir", GOSSIP_READDIR_DEBUG},
+ /* Debug the mkdir operation (server only) */
+ {"mkdir", GOSSIP_MKDIR_DEBUG},
+ /*
+ * Debug the io operation (reads and writes)
+ * for both the client and server.
+ */
+ {"io", GOSSIP_IO_DEBUG},
+ /* Debug the server's open file descriptor cache */
+ {"open_cache", GOSSIP_DBPF_OPEN_CACHE_DEBUG},
+ /* Debug permissions checking on the server */
+ {"permissions", GOSSIP_PERMISSIONS_DEBUG},
+ /* Debug the cancel operation */
+ {"cancel", GOSSIP_CANCEL_DEBUG},
+ /* Debug the msgpair state machine */
+ {"msgpair", GOSSIP_MSGPAIR_DEBUG},
+ /* Debug the client core app */
+ {"clientcore", GOSSIP_CLIENTCORE_DEBUG},
+ /* Debug the client timing state machines (job timeout, etc.) */
+ {"clientcore_timing", GOSSIP_CLIENTCORE_TIMING_DEBUG},
+ /* network encoding */
+ {"endecode", GOSSIP_ENDECODE_DEBUG},
+ /* Show server file (metadata) accesses (both modify and read-only). */
+ {"access", GOSSIP_ACCESS_DEBUG},
+ /* Show more detailed server file accesses */
+ {"access_detail", GOSSIP_ACCESS_DETAIL_DEBUG},
+ /* Debug the listeattr operation */
+ {"listeattr", GOSSIP_LISTEATTR_DEBUG},
+ /* Debug the state machine management code */
+ {"sm", GOSSIP_STATE_MACHINE_DEBUG},
+ /* Debug the metadata dbpf keyval functions */
+ {"keyval", GOSSIP_DBPF_KEYVAL_DEBUG},
+ /* Debug the metadata sync coalescing code */
+ {"coalesce", GOSSIP_DBPF_COALESCE_DEBUG},
+ /* Display the hostnames instead of IP addrs in debug output */
+ {"access_hostnames", GOSSIP_ACCESS_HOSTNAMES},
+ /* Show the client device events */
+ {"user_dev", GOSSIP_USER_DEV_DEBUG},
+ /* Debug the fsck tool */
+ {"fsck", GOSSIP_FSCK_DEBUG},
+ /* Debug the bstream code */
+ {"bstream", GOSSIP_BSTREAM_DEBUG},
+ /* Debug trove in direct io mode */
+ {"directio", GOSSIP_DIRECTIO_DEBUG},
+ /* Debug direct io thread management */
+ {"mgmt", GOSSIP_MGMT_DEBUG},
+ /* Debug mirroring process */
+ {"mirror", GOSSIP_MIRROR_DEBUG},
+ /* Windows client */
+ {"win_client", GOSSIP_WIN_CLIENT_DEBUG},
+ /* Debug robust security code */
+ {"security", GOSSIP_SECURITY_DEBUG},
+ /* Capability Cache */
+ {"seccache", GOSSIP_SECCACHE_DEBUG},
+ /* Client User Interface */
+ {"usrint", GOSSIP_USRINT_DEBUG},
+ /* rcache */
+ {"rcache", GOSSIP_RCACHE_DEBUG},
+ /* Everything except the periodic events. Useful for debugging */
+ {"verbose",
+ (__DEBUG_ALL &
+ ~(GOSSIP_PERFCOUNTER_DEBUG | GOSSIP_STATE_MACHINE_DEBUG |
+ GOSSIP_ENDECODE_DEBUG | GOSSIP_USER_DEV_DEBUG))
+ },
+ /* No debug output */
+ {"none", GOSSIP_NO_DEBUG},
+ /* Everything */
+ {"all", __DEBUG_ALL}
+};
+
+#undef __DEBUG_ALL
+
+/*
+ * Map all kmod keywords to kmod debug masks here. Keep this
+ * structure "packed":
+ *
+ * "all" is always last...
+ *
+ * keyword mask_val index
+ * foo 1 0
+ * bar 2 1
+ * baz 4 2
+ * qux 8 3
+ * . . .
+ */
+static struct __keyword_mask_s s_kmod_keyword_mask_map[] = {
+ {"super", GOSSIP_SUPER_DEBUG},
+ {"inode", GOSSIP_INODE_DEBUG},
+ {"file", GOSSIP_FILE_DEBUG},
+ {"dir", GOSSIP_DIR_DEBUG},
+ {"utils", GOSSIP_UTILS_DEBUG},
+ {"wait", GOSSIP_WAIT_DEBUG},
+ {"acl", GOSSIP_ACL_DEBUG},
+ {"dcache", GOSSIP_DCACHE_DEBUG},
+ {"dev", GOSSIP_DEV_DEBUG},
+ {"name", GOSSIP_NAME_DEBUG},
+ {"bufmap", GOSSIP_BUFMAP_DEBUG},
+ {"cache", GOSSIP_CACHE_DEBUG},
+ {"debugfs", GOSSIP_DEBUGFS_DEBUG},
+ {"xattr", GOSSIP_XATTR_DEBUG},
+ {"init", GOSSIP_INIT_DEBUG},
+ {"sysfs", GOSSIP_SYSFS_DEBUG},
+ {"none", GOSSIP_NO_DEBUG},
+ {"all", GOSSIP_MAX_DEBUG}
+};
+
+static const int num_kmod_keyword_mask_map = (int)
+ (sizeof(s_kmod_keyword_mask_map) / sizeof(struct __keyword_mask_s));
+
+static const int num_keyword_mask_map = (int)
+ (sizeof(s_keyword_mask_map) / sizeof(struct __keyword_mask_s));
+
+#endif /* __ORANGEFS_DEBUG_H */
--- /dev/null
+/*
+ * What: /sys/kernel/debug/orangefs/debug-help
+ * Date: June 2015
+ * Contact: Mike Marshall <hubcap@omnibond.com>
+ * Description:
+ * List of client and kernel debug keywords.
+ *
+ *
+ * What: /sys/kernel/debug/orangefs/client-debug
+ * Date: June 2015
+ * Contact: Mike Marshall <hubcap@omnibond.com>
+ * Description:
+ * Debug setting for "the client", the userspace
+ * helper for the kernel module.
+ *
+ *
+ * What: /sys/kernel/debug/orangefs/kernel-debug
+ * Date: June 2015
+ * Contact: Mike Marshall <hubcap@omnibond.com>
+ * Description:
+ * Debug setting for the orangefs kernel module.
+ *
+ * Any of the keywords, or comma-separated lists
+ * of keywords, from debug-help can be catted to
+ * client-debug or kernel-debug.
+ *
+ * "none", "all" and "verbose" are special keywords
+ * for client-debug. Setting client-debug to "all"
+ * is kind of like trying to drink water from a
+ * fire hose, "verbose" triggers most of the same
+ * output except for the constant flow of output
+ * from the main wait loop.
+ *
+ * "none" and "all" are similar settings for kernel-debug
+ * no need for a "verbose".
+ */
+#include <linux/debugfs.h>
+#include <linux/slab.h>
+
+#include <linux/uaccess.h>
+
+#include "orangefs-debugfs.h"
+#include "protocol.h"
+#include "orangefs-kernel.h"
+
+static int orangefs_debug_disabled = 1;
+
+static int orangefs_debug_help_open(struct inode *, struct file *);
+
+const struct file_operations debug_help_fops = {
+ .open = orangefs_debug_help_open,
+ .read = seq_read,
+ .release = seq_release,
+ .llseek = seq_lseek,
+};
+
+static void *help_start(struct seq_file *, loff_t *);
+static void *help_next(struct seq_file *, void *, loff_t *);
+static void help_stop(struct seq_file *, void *);
+static int help_show(struct seq_file *, void *);
+
+static const struct seq_operations help_debug_ops = {
+ .start = help_start,
+ .next = help_next,
+ .stop = help_stop,
+ .show = help_show,
+};
+
+/*
+ * Used to protect data in ORANGEFS_KMOD_DEBUG_FILE and
+ * ORANGEFS_KMOD_DEBUG_FILE.
+ */
+static DEFINE_MUTEX(orangefs_debug_lock);
+
+int orangefs_debug_open(struct inode *, struct file *);
+
+static ssize_t orangefs_debug_read(struct file *,
+ char __user *,
+ size_t,
+ loff_t *);
+
+static ssize_t orangefs_debug_write(struct file *,
+ const char __user *,
+ size_t,
+ loff_t *);
+
+static const struct file_operations kernel_debug_fops = {
+ .open = orangefs_debug_open,
+ .read = orangefs_debug_read,
+ .write = orangefs_debug_write,
+ .llseek = generic_file_llseek,
+};
+
+/*
+ * initialize kmod debug operations, create orangefs debugfs dir and
+ * ORANGEFS_KMOD_DEBUG_HELP_FILE.
+ */
+int orangefs_debugfs_init(void)
+{
+
+ int rc = -ENOMEM;
+
+ debug_dir = debugfs_create_dir("orangefs", NULL);
+ if (!debug_dir)
+ goto out;
+
+ help_file_dentry = debugfs_create_file(ORANGEFS_KMOD_DEBUG_HELP_FILE,
+ 0444,
+ debug_dir,
+ debug_help_string,
+ &debug_help_fops);
+ if (!help_file_dentry)
+ goto out;
+
+ orangefs_debug_disabled = 0;
+ rc = 0;
+
+out:
+ if (rc)
+ orangefs_debugfs_cleanup();
+
+ return rc;
+}
+
+void orangefs_debugfs_cleanup(void)
+{
+ debugfs_remove_recursive(debug_dir);
+}
+
+/* open ORANGEFS_KMOD_DEBUG_HELP_FILE */
+static int orangefs_debug_help_open(struct inode *inode, struct file *file)
+{
+ int rc = -ENODEV;
+ int ret;
+
+ gossip_debug(GOSSIP_DEBUGFS_DEBUG,
+ "orangefs_debug_help_open: start\n");
+
+ if (orangefs_debug_disabled)
+ goto out;
+
+ ret = seq_open(file, &help_debug_ops);
+ if (ret)
+ goto out;
+
+ ((struct seq_file *)(file->private_data))->private = inode->i_private;
+
+ rc = 0;
+
+out:
+ gossip_debug(GOSSIP_DEBUGFS_DEBUG,
+ "orangefs_debug_help_open: rc:%d:\n",
+ rc);
+ return rc;
+}
+
+/*
+ * I think start always gets called again after stop. Start
+ * needs to return NULL when it is done. The whole "payload"
+ * in this case is a single (long) string, so by the second
+ * time we get to start (pos = 1), we're done.
+ */
+static void *help_start(struct seq_file *m, loff_t *pos)
+{
+ void *payload = NULL;
+
+ gossip_debug(GOSSIP_DEBUGFS_DEBUG, "help_start: start\n");
+
+ if (*pos == 0)
+ payload = m->private;
+
+ return payload;
+}
+
+static void *help_next(struct seq_file *m, void *v, loff_t *pos)
+{
+ gossip_debug(GOSSIP_DEBUGFS_DEBUG, "help_next: start\n");
+
+ return NULL;
+}
+
+static void help_stop(struct seq_file *m, void *p)
+{
+ gossip_debug(GOSSIP_DEBUGFS_DEBUG, "help_stop: start\n");
+}
+
+static int help_show(struct seq_file *m, void *v)
+{
+ gossip_debug(GOSSIP_DEBUGFS_DEBUG, "help_show: start\n");
+
+ seq_puts(m, v);
+
+ return 0;
+}
+
+/*
+ * initialize the kernel-debug file.
+ */
+int orangefs_kernel_debug_init(void)
+{
+
+ int rc = -ENOMEM;
+ struct dentry *ret;
+ char *k_buffer = NULL;
+
+ gossip_debug(GOSSIP_DEBUGFS_DEBUG, "%s: start\n", __func__);
+
+ k_buffer = kzalloc(ORANGEFS_MAX_DEBUG_STRING_LEN, GFP_KERNEL);
+ if (!k_buffer)
+ goto out;
+
+ if (strlen(kernel_debug_string) + 1 < ORANGEFS_MAX_DEBUG_STRING_LEN) {
+ strcpy(k_buffer, kernel_debug_string);
+ strcat(k_buffer, "\n");
+ } else {
+ strcpy(k_buffer, "none\n");
+ pr_info("%s: overflow 1!\n", __func__);
+ }
+
+ ret = debugfs_create_file(ORANGEFS_KMOD_DEBUG_FILE,
+ 0444,
+ debug_dir,
+ k_buffer,
+ &kernel_debug_fops);
+ if (!ret) {
+ pr_info("%s: failed to create %s.\n",
+ __func__,
+ ORANGEFS_KMOD_DEBUG_FILE);
+ goto out;
+ }
+
+ rc = 0;
+
+out:
+ if (rc)
+ orangefs_debugfs_cleanup();
+
+ gossip_debug(GOSSIP_DEBUGFS_DEBUG, "%s: rc:%d:\n", __func__, rc);
+ return rc;
+}
+
+/*
+ * initialize the client-debug file.
+ */
+int orangefs_client_debug_init(void)
+{
+
+ int rc = -ENOMEM;
+ char *c_buffer = NULL;
+
+ gossip_debug(GOSSIP_DEBUGFS_DEBUG, "%s: start\n", __func__);
+
+ c_buffer = kzalloc(ORANGEFS_MAX_DEBUG_STRING_LEN, GFP_KERNEL);
+ if (!c_buffer)
+ goto out;
+
+ if (strlen(client_debug_string) + 1 < ORANGEFS_MAX_DEBUG_STRING_LEN) {
+ strcpy(c_buffer, client_debug_string);
+ strcat(c_buffer, "\n");
+ } else {
+ strcpy(c_buffer, "none\n");
+ pr_info("%s: overflow! 2\n", __func__);
+ }
+
+ client_debug_dentry = debugfs_create_file(ORANGEFS_CLIENT_DEBUG_FILE,
+ 0444,
+ debug_dir,
+ c_buffer,
+ &kernel_debug_fops);
+ if (!client_debug_dentry) {
+ pr_info("%s: failed to create %s.\n",
+ __func__,
+ ORANGEFS_CLIENT_DEBUG_FILE);
+ goto out;
+ }
+
+ rc = 0;
+
+out:
+ if (rc)
+ orangefs_debugfs_cleanup();
+
+ gossip_debug(GOSSIP_DEBUGFS_DEBUG, "%s: rc:%d:\n", __func__, rc);
+ return rc;
+}
+
+/* open ORANGEFS_KMOD_DEBUG_FILE or ORANGEFS_CLIENT_DEBUG_FILE.*/
+int orangefs_debug_open(struct inode *inode, struct file *file)
+{
+ int rc = -ENODEV;
+
+ gossip_debug(GOSSIP_DEBUGFS_DEBUG,
+ "%s: orangefs_debug_disabled: %d\n",
+ __func__,
+ orangefs_debug_disabled);
+
+ if (orangefs_debug_disabled)
+ goto out;
+
+ rc = 0;
+ mutex_lock(&orangefs_debug_lock);
+ file->private_data = inode->i_private;
+ mutex_unlock(&orangefs_debug_lock);
+
+out:
+ gossip_debug(GOSSIP_DEBUGFS_DEBUG,
+ "orangefs_debug_open: rc: %d\n",
+ rc);
+ return rc;
+}
+
+static ssize_t orangefs_debug_read(struct file *file,
+ char __user *ubuf,
+ size_t count,
+ loff_t *ppos)
+{
+ char *buf;
+ int sprintf_ret;
+ ssize_t read_ret = -ENOMEM;
+
+ gossip_debug(GOSSIP_DEBUGFS_DEBUG, "orangefs_debug_read: start\n");
+
+ buf = kmalloc(ORANGEFS_MAX_DEBUG_STRING_LEN, GFP_KERNEL);
+ if (!buf)
+ goto out;
+
+ mutex_lock(&orangefs_debug_lock);
+ sprintf_ret = sprintf(buf, "%s", (char *)file->private_data);
+ mutex_unlock(&orangefs_debug_lock);
+
+ read_ret = simple_read_from_buffer(ubuf, count, ppos, buf, sprintf_ret);
+
+ kfree(buf);
+
+out:
+ gossip_debug(GOSSIP_DEBUGFS_DEBUG,
+ "orangefs_debug_read: ret: %zu\n",
+ read_ret);
+
+ return read_ret;
+}
+
+static ssize_t orangefs_debug_write(struct file *file,
+ const char __user *ubuf,
+ size_t count,
+ loff_t *ppos)
+{
+ char *buf;
+ int rc = -EFAULT;
+ size_t silly = 0;
+ char *debug_string;
+ struct orangefs_kernel_op_s *new_op = NULL;
+ struct client_debug_mask c_mask = { NULL, 0, 0 };
+
+ gossip_debug(GOSSIP_DEBUGFS_DEBUG,
+ "orangefs_debug_write: %s\n",
+ file->f_path.dentry->d_name.name);
+
+ /*
+ * Thwart users who try to jamb a ridiculous number
+ * of bytes into the debug file...
+ */
+ if (count > ORANGEFS_MAX_DEBUG_STRING_LEN + 1) {
+ silly = count;
+ count = ORANGEFS_MAX_DEBUG_STRING_LEN + 1;
+ }
+
+ buf = kmalloc(ORANGEFS_MAX_DEBUG_STRING_LEN, GFP_KERNEL);
+ if (!buf)
+ goto out;
+ memset(buf, 0, ORANGEFS_MAX_DEBUG_STRING_LEN);
+
+ if (copy_from_user(buf, ubuf, count - 1)) {
+ gossip_debug(GOSSIP_DEBUGFS_DEBUG,
+ "%s: copy_from_user failed!\n",
+ __func__);
+ goto out;
+ }
+
+ /*
+ * Map the keyword string from userspace into a valid debug mask.
+ * The mapping process involves mapping the human-inputted string
+ * into a valid mask, and then rebuilding the string from the
+ * verified valid mask.
+ *
+ * A service operation is required to set a new client-side
+ * debug mask.
+ */
+ if (!strcmp(file->f_path.dentry->d_name.name,
+ ORANGEFS_KMOD_DEBUG_FILE)) {
+ debug_string_to_mask(buf, &gossip_debug_mask, 0);
+ debug_mask_to_string(&gossip_debug_mask, 0);
+ debug_string = kernel_debug_string;
+ gossip_debug(GOSSIP_DEBUGFS_DEBUG,
+ "New kernel debug string is %s\n",
+ kernel_debug_string);
+ } else {
+ /* Can't reset client debug mask if client is not running. */
+ if (is_daemon_in_service()) {
+ pr_info("%s: Client not running :%d:\n",
+ __func__,
+ is_daemon_in_service());
+ goto out;
+ }
+
+ debug_string_to_mask(buf, &c_mask, 1);
+ debug_mask_to_string(&c_mask, 1);
+ debug_string = client_debug_string;
+
+ new_op = op_alloc(ORANGEFS_VFS_OP_PARAM);
+ if (!new_op) {
+ pr_info("%s: op_alloc failed!\n", __func__);
+ goto out;
+ }
+
+ new_op->upcall.req.param.op =
+ ORANGEFS_PARAM_REQUEST_OP_TWO_MASK_VALUES;
+ new_op->upcall.req.param.type = ORANGEFS_PARAM_REQUEST_SET;
+ memset(new_op->upcall.req.param.s_value,
+ 0,
+ ORANGEFS_MAX_DEBUG_STRING_LEN);
+ sprintf(new_op->upcall.req.param.s_value,
+ "%llx %llx\n",
+ c_mask.mask1,
+ c_mask.mask2);
+
+ /* service_operation returns 0 on success... */
+ rc = service_operation(new_op,
+ "orangefs_param",
+ ORANGEFS_OP_INTERRUPTIBLE);
+
+ if (rc)
+ gossip_debug(GOSSIP_DEBUGFS_DEBUG,
+ "%s: service_operation failed! rc:%d:\n",
+ __func__,
+ rc);
+
+ op_release(new_op);
+ }
+
+ mutex_lock(&orangefs_debug_lock);
+ memset(file->f_inode->i_private, 0, ORANGEFS_MAX_DEBUG_STRING_LEN);
+ sprintf((char *)file->f_inode->i_private, "%s\n", debug_string);
+ mutex_unlock(&orangefs_debug_lock);
+
+ *ppos += count;
+ if (silly)
+ rc = silly;
+ else
+ rc = count;
+
+out:
+ gossip_debug(GOSSIP_DEBUGFS_DEBUG,
+ "orangefs_debug_write: rc: %d\n",
+ rc);
+ kfree(buf);
+ return rc;
+}
--- /dev/null
+int orangefs_debugfs_init(void);
+int orangefs_kernel_debug_init(void);
+void orangefs_debugfs_cleanup(void);
--- /dev/null
+/*
+ * (C) 2001 Clemson University and The University of Chicago
+ *
+ * See COPYING in top-level directory.
+ */
+
+#ifndef _ORANGEFS_DEV_PROTO_H
+#define _ORANGEFS_DEV_PROTO_H
+
+/*
+ * types and constants shared between user space and kernel space for
+ * device interaction using a common protocol
+ */
+
+/*
+ * valid orangefs kernel operation types
+ */
+#define ORANGEFS_VFS_OP_INVALID 0xFF000000
+#define ORANGEFS_VFS_OP_FILE_IO 0xFF000001
+#define ORANGEFS_VFS_OP_LOOKUP 0xFF000002
+#define ORANGEFS_VFS_OP_CREATE 0xFF000003
+#define ORANGEFS_VFS_OP_GETATTR 0xFF000004
+#define ORANGEFS_VFS_OP_REMOVE 0xFF000005
+#define ORANGEFS_VFS_OP_MKDIR 0xFF000006
+#define ORANGEFS_VFS_OP_READDIR 0xFF000007
+#define ORANGEFS_VFS_OP_SETATTR 0xFF000008
+#define ORANGEFS_VFS_OP_SYMLINK 0xFF000009
+#define ORANGEFS_VFS_OP_RENAME 0xFF00000A
+#define ORANGEFS_VFS_OP_STATFS 0xFF00000B
+#define ORANGEFS_VFS_OP_TRUNCATE 0xFF00000C
+#define ORANGEFS_VFS_OP_MMAP_RA_FLUSH 0xFF00000D
+#define ORANGEFS_VFS_OP_FS_MOUNT 0xFF00000E
+#define ORANGEFS_VFS_OP_FS_UMOUNT 0xFF00000F
+#define ORANGEFS_VFS_OP_GETXATTR 0xFF000010
+#define ORANGEFS_VFS_OP_SETXATTR 0xFF000011
+#define ORANGEFS_VFS_OP_LISTXATTR 0xFF000012
+#define ORANGEFS_VFS_OP_REMOVEXATTR 0xFF000013
+#define ORANGEFS_VFS_OP_PARAM 0xFF000014
+#define ORANGEFS_VFS_OP_PERF_COUNT 0xFF000015
+#define ORANGEFS_VFS_OP_CANCEL 0xFF00EE00
+#define ORANGEFS_VFS_OP_FSYNC 0xFF00EE01
+#define ORANGEFS_VFS_OP_FSKEY 0xFF00EE02
+#define ORANGEFS_VFS_OP_READDIRPLUS 0xFF00EE03
+
+/*
+ * Misc constants. Please retain them as multiples of 8!
+ * Otherwise 32-64 bit interactions will be messed up :)
+ */
+#define ORANGEFS_NAME_LEN 0x00000100
+#define ORANGEFS_MAX_DEBUG_STRING_LEN 0x00000400
+#define ORANGEFS_MAX_DEBUG_ARRAY_LEN 0x00000800
+
+/*
+ * MAX_DIRENT_COUNT cannot be larger than ORANGEFS_REQ_LIMIT_LISTATTR.
+ * The value of ORANGEFS_REQ_LIMIT_LISTATTR has been changed from 113 to 60
+ * to accomodate an attribute object with mirrored handles.
+ * MAX_DIRENT_COUNT is replaced by MAX_DIRENT_COUNT_READDIR and
+ * MAX_DIRENT_COUNT_READDIRPLUS, since readdir doesn't trigger a listattr
+ * but readdirplus might.
+*/
+#define MAX_DIRENT_COUNT_READDIR 0x00000060
+#define MAX_DIRENT_COUNT_READDIRPLUS 0x0000003C
+
+#include "upcall.h"
+#include "downcall.h"
+
+/*
+ * These macros differ from proto macros in that they don't do any
+ * byte-swappings and are used to ensure that kernel-clientcore interactions
+ * don't cause any unaligned accesses etc on 64 bit machines
+ */
+#ifndef roundup4
+#define roundup4(x) (((x)+3) & ~3)
+#endif
+
+#ifndef roundup8
+#define roundup8(x) (((x)+7) & ~7)
+#endif
+
+struct read_write_x {
+ __s64 off;
+ __s64 len;
+};
+
+#endif
--- /dev/null
+/*
+ * (C) 2001 Clemson University and The University of Chicago
+ *
+ * See COPYING in top-level directory.
+ */
+
+/*
+ * The ORANGEFS Linux kernel support allows ORANGEFS volumes to be mounted and
+ * accessed through the Linux VFS (i.e. using standard I/O system calls).
+ * This support is only needed on clients that wish to mount the file system.
+ *
+ */
+
+/*
+ * Declarations and macros for the ORANGEFS Linux kernel support.
+ */
+
+#ifndef __ORANGEFSKERNEL_H
+#define __ORANGEFSKERNEL_H
+
+#include <linux/kernel.h>
+#include <linux/moduleparam.h>
+#include <linux/statfs.h>
+#include <linux/backing-dev.h>
+#include <linux/device.h>
+#include <linux/mpage.h>
+#include <linux/namei.h>
+#include <linux/errno.h>
+#include <linux/init.h>
+#include <linux/module.h>
+#include <linux/slab.h>
+#include <linux/types.h>
+#include <linux/fs.h>
+#include <linux/vmalloc.h>
+
+#include <linux/aio.h>
+#include <linux/posix_acl.h>
+#include <linux/posix_acl_xattr.h>
+#include <linux/compat.h>
+#include <linux/mount.h>
+#include <linux/uaccess.h>
+#include <linux/atomic.h>
+#include <linux/uio.h>
+#include <linux/sched.h>
+#include <linux/mm.h>
+#include <linux/wait.h>
+#include <linux/dcache.h>
+#include <linux/pagemap.h>
+#include <linux/poll.h>
+#include <linux/rwsem.h>
+#include <linux/xattr.h>
+#include <linux/exportfs.h>
+
+#include <asm/unaligned.h>
+
+#include "orangefs-dev-proto.h"
+
+#ifdef ORANGEFS_KERNEL_DEBUG
+#define ORANGEFS_DEFAULT_OP_TIMEOUT_SECS 10
+#else
+#define ORANGEFS_DEFAULT_OP_TIMEOUT_SECS 20
+#endif
+
+#define ORANGEFS_BUFMAP_WAIT_TIMEOUT_SECS 30
+
+#define ORANGEFS_DEFAULT_SLOT_TIMEOUT_SECS 900 /* 15 minutes */
+
+#define ORANGEFS_REQDEVICE_NAME "pvfs2-req"
+
+#define ORANGEFS_DEVREQ_MAGIC 0x20030529
+#define ORANGEFS_LINK_MAX 0x000000FF
+#define ORANGEFS_PURGE_RETRY_COUNT 0x00000005
+#define ORANGEFS_SEEK_END 0x00000002
+#define ORANGEFS_MAX_NUM_OPTIONS 0x00000004
+#define ORANGEFS_MAX_MOUNT_OPT_LEN 0x00000080
+#define ORANGEFS_MAX_FSKEY_LEN 64
+
+#define MAX_DEV_REQ_UPSIZE (2*sizeof(__s32) + \
+sizeof(__u64) + sizeof(struct orangefs_upcall_s))
+#define MAX_DEV_REQ_DOWNSIZE (2*sizeof(__s32) + \
+sizeof(__u64) + sizeof(struct orangefs_downcall_s))
+
+#define BITS_PER_LONG_DIV_8 (BITS_PER_LONG >> 3)
+
+/* borrowed from irda.h */
+#ifndef MSECS_TO_JIFFIES
+#define MSECS_TO_JIFFIES(ms) (((ms)*HZ+999)/1000)
+#endif
+
+#define MAX_ALIGNED_DEV_REQ_UPSIZE \
+ (MAX_DEV_REQ_UPSIZE + \
+ ((((MAX_DEV_REQ_UPSIZE / \
+ (BITS_PER_LONG_DIV_8)) * \
+ (BITS_PER_LONG_DIV_8)) + \
+ (BITS_PER_LONG_DIV_8)) - \
+ MAX_DEV_REQ_UPSIZE))
+
+#define MAX_ALIGNED_DEV_REQ_DOWNSIZE \
+ (MAX_DEV_REQ_DOWNSIZE + \
+ ((((MAX_DEV_REQ_DOWNSIZE / \
+ (BITS_PER_LONG_DIV_8)) * \
+ (BITS_PER_LONG_DIV_8)) + \
+ (BITS_PER_LONG_DIV_8)) - \
+ MAX_DEV_REQ_DOWNSIZE))
+
+/*
+ * valid orangefs kernel operation states
+ *
+ * unknown - op was just initialized
+ * waiting - op is on request_list (upward bound)
+ * inprogr - op is in progress (waiting for downcall)
+ * serviced - op has matching downcall; ok
+ * purged - op has to start a timer since client-core
+ * exited uncleanly before servicing op
+ */
+enum orangefs_vfs_op_states {
+ OP_VFS_STATE_UNKNOWN = 0,
+ OP_VFS_STATE_WAITING = 1,
+ OP_VFS_STATE_INPROGR = 2,
+ OP_VFS_STATE_SERVICED = 4,
+ OP_VFS_STATE_PURGED = 8,
+};
+
+#define set_op_state_waiting(op) ((op)->op_state = OP_VFS_STATE_WAITING)
+#define set_op_state_inprogress(op) ((op)->op_state = OP_VFS_STATE_INPROGR)
+#define set_op_state_serviced(op) ((op)->op_state = OP_VFS_STATE_SERVICED)
+#define set_op_state_purged(op) ((op)->op_state |= OP_VFS_STATE_PURGED)
+
+#define op_state_waiting(op) ((op)->op_state & OP_VFS_STATE_WAITING)
+#define op_state_in_progress(op) ((op)->op_state & OP_VFS_STATE_INPROGR)
+#define op_state_serviced(op) ((op)->op_state & OP_VFS_STATE_SERVICED)
+#define op_state_purged(op) ((op)->op_state & OP_VFS_STATE_PURGED)
+
+#define get_op(op) \
+ do { \
+ atomic_inc(&(op)->aio_ref_count); \
+ gossip_debug(GOSSIP_DEV_DEBUG, \
+ "(get) Alloced OP (%p:%llu)\n", \
+ op, \
+ llu((op)->tag)); \
+ } while (0)
+
+#define put_op(op) \
+ do { \
+ if (atomic_sub_and_test(1, &(op)->aio_ref_count) == 1) { \
+ gossip_debug(GOSSIP_DEV_DEBUG, \
+ "(put) Releasing OP (%p:%llu)\n", \
+ op, \
+ llu((op)->tag)); \
+ op_release(op); \
+ } \
+ } while (0)
+
+#define op_wait(op) (atomic_read(&(op)->aio_ref_count) <= 2 ? 0 : 1)
+
+/*
+ * Defines for controlling whether I/O upcalls are for async or sync operations
+ */
+enum ORANGEFS_async_io_type {
+ ORANGEFS_VFS_SYNC_IO = 0,
+ ORANGEFS_VFS_ASYNC_IO = 1,
+};
+
+/*
+ * An array of client_debug_mask will be built to hold debug keyword/mask
+ * values fetched from userspace.
+ */
+struct client_debug_mask {
+ char *keyword;
+ __u64 mask1;
+ __u64 mask2;
+};
+
+/*
+ * orangefs kernel memory related flags
+ */
+
+#if ((defined ORANGEFS_KERNEL_DEBUG) && (defined CONFIG_DEBUG_SLAB))
+#define ORANGEFS_CACHE_CREATE_FLAGS SLAB_RED_ZONE
+#else
+#define ORANGEFS_CACHE_CREATE_FLAGS 0
+#endif /* ((defined ORANGEFS_KERNEL_DEBUG) && (defined CONFIG_DEBUG_SLAB)) */
+
+#define ORANGEFS_CACHE_ALLOC_FLAGS (GFP_KERNEL)
+#define ORANGEFS_GFP_FLAGS (GFP_KERNEL)
+#define ORANGEFS_BUFMAP_GFP_FLAGS (GFP_KERNEL)
+
+/* orangefs xattr and acl related defines */
+#define ORANGEFS_XATTR_INDEX_POSIX_ACL_ACCESS 1
+#define ORANGEFS_XATTR_INDEX_POSIX_ACL_DEFAULT 2
+#define ORANGEFS_XATTR_INDEX_TRUSTED 3
+#define ORANGEFS_XATTR_INDEX_DEFAULT 4
+
+#if 0
+#ifndef POSIX_ACL_XATTR_ACCESS
+#define POSIX_ACL_XATTR_ACCESS "system.posix_acl_access"
+#endif
+#ifndef POSIX_ACL_XATTR_DEFAULT
+#define POSIX_ACL_XATTR_DEFAULT "system.posix_acl_default"
+#endif
+#endif
+
+#define ORANGEFS_XATTR_NAME_ACL_ACCESS POSIX_ACL_XATTR_ACCESS
+#define ORANGEFS_XATTR_NAME_ACL_DEFAULT POSIX_ACL_XATTR_DEFAULT
+#define ORANGEFS_XATTR_NAME_TRUSTED_PREFIX "trusted."
+#define ORANGEFS_XATTR_NAME_DEFAULT_PREFIX ""
+
+/* these functions are defined in orangefs-utils.c */
+int orangefs_prepare_cdm_array(char *debug_array_string);
+int orangefs_prepare_debugfs_help_string(int);
+
+/* defined in orangefs-debugfs.c */
+int orangefs_client_debug_init(void);
+
+void debug_string_to_mask(char *, void *, int);
+void do_c_mask(int, char *, struct client_debug_mask **);
+void do_k_mask(int, char *, __u64 **);
+
+void debug_mask_to_string(void *, int);
+void do_k_string(void *, int);
+void do_c_string(void *, int);
+int check_amalgam_keyword(void *, int);
+int keyword_is_amalgam(char *);
+
+/*these variables are defined in orangefs-mod.c */
+extern char kernel_debug_string[ORANGEFS_MAX_DEBUG_STRING_LEN];
+extern char client_debug_string[ORANGEFS_MAX_DEBUG_STRING_LEN];
+extern char client_debug_array_string[ORANGEFS_MAX_DEBUG_STRING_LEN];
+extern unsigned int kernel_mask_set_mod_init;
+
+extern int orangefs_init_acl(struct inode *inode, struct inode *dir);
+extern const struct xattr_handler *orangefs_xattr_handlers[];
+
+extern struct posix_acl *orangefs_get_acl(struct inode *inode, int type);
+extern int orangefs_set_acl(struct inode *inode, struct posix_acl *acl, int type);
+
+/*
+ * Redefine xtvec structure so that we could move helper functions out of
+ * the define
+ */
+struct xtvec {
+ __kernel_off_t xtv_off; /* must be off_t */
+ __kernel_size_t xtv_len; /* must be size_t */
+};
+
+/*
+ * orangefs data structures
+ */
+struct orangefs_kernel_op_s {
+ enum orangefs_vfs_op_states op_state;
+ __u64 tag;
+
+ /*
+ * Set uses_shared_memory to 1 if this operation uses shared memory.
+ * If true, then a retry on the op must also get a new shared memory
+ * buffer and re-populate it.
+ */
+ int uses_shared_memory;
+
+ struct orangefs_upcall_s upcall;
+ struct orangefs_downcall_s downcall;
+
+ wait_queue_head_t waitq;
+ spinlock_t lock;
+
+ int io_completed;
+ wait_queue_head_t io_completion_waitq;
+
+ /* VFS aio fields */
+
+ /* used by the async I/O code to stash the orangefs_kiocb_s structure */
+ void *priv;
+
+ /* used again for the async I/O code for deallocation */
+ atomic_t aio_ref_count;
+
+ int attempts;
+
+ struct list_head list;
+};
+
+/* per inode private orangefs info */
+struct orangefs_inode_s {
+ struct orangefs_object_kref refn;
+ char link_target[ORANGEFS_NAME_MAX];
+ __s64 blksize;
+ /*
+ * Reading/Writing Extended attributes need to acquire the appropriate
+ * reader/writer semaphore on the orangefs_inode_s structure.
+ */
+ struct rw_semaphore xattr_sem;
+
+ struct inode vfs_inode;
+ sector_t last_failed_block_index_read;
+
+ /*
+ * State of in-memory attributes not yet flushed to disk associated
+ * with this object
+ */
+ unsigned long pinode_flags;
+
+ /* All allocated orangefs_inode_s objects are chained to a list */
+ struct list_head list;
+};
+
+#define P_ATIME_FLAG 0
+#define P_MTIME_FLAG 1
+#define P_CTIME_FLAG 2
+#define P_MODE_FLAG 3
+
+#define ClearAtimeFlag(pinode) clear_bit(P_ATIME_FLAG, &(pinode)->pinode_flags)
+#define SetAtimeFlag(pinode) set_bit(P_ATIME_FLAG, &(pinode)->pinode_flags)
+#define AtimeFlag(pinode) test_bit(P_ATIME_FLAG, &(pinode)->pinode_flags)
+
+#define ClearMtimeFlag(pinode) clear_bit(P_MTIME_FLAG, &(pinode)->pinode_flags)
+#define SetMtimeFlag(pinode) set_bit(P_MTIME_FLAG, &(pinode)->pinode_flags)
+#define MtimeFlag(pinode) test_bit(P_MTIME_FLAG, &(pinode)->pinode_flags)
+
+#define ClearCtimeFlag(pinode) clear_bit(P_CTIME_FLAG, &(pinode)->pinode_flags)
+#define SetCtimeFlag(pinode) set_bit(P_CTIME_FLAG, &(pinode)->pinode_flags)
+#define CtimeFlag(pinode) test_bit(P_CTIME_FLAG, &(pinode)->pinode_flags)
+
+#define ClearModeFlag(pinode) clear_bit(P_MODE_FLAG, &(pinode)->pinode_flags)
+#define SetModeFlag(pinode) set_bit(P_MODE_FLAG, &(pinode)->pinode_flags)
+#define ModeFlag(pinode) test_bit(P_MODE_FLAG, &(pinode)->pinode_flags)
+
+/* per superblock private orangefs info */
+struct orangefs_sb_info_s {
+ struct orangefs_khandle root_khandle;
+ __s32 fs_id;
+ int id;
+ int flags;
+#define ORANGEFS_OPT_INTR 0x01
+#define ORANGEFS_OPT_LOCAL_LOCK 0x02
+ char devname[ORANGEFS_MAX_SERVER_ADDR_LEN];
+ struct super_block *sb;
+ int mount_pending;
+ struct list_head list;
+};
+
+/*
+ * structure that holds the state of any async I/O operation issued
+ * through the VFS. Needed especially to handle cancellation requests
+ * or even completion notification so that the VFS client-side daemon
+ * can free up its vfs_request slots.
+ */
+struct orangefs_kiocb_s {
+ /* the pointer to the task that initiated the AIO */
+ struct task_struct *tsk;
+
+ /* pointer to the kiocb that kicked this operation */
+ struct kiocb *kiocb;
+
+ /* buffer index that was used for the I/O */
+ struct orangefs_bufmap *bufmap;
+ int buffer_index;
+
+ /* orangefs kernel operation type */
+ struct orangefs_kernel_op_s *op;
+
+ /* The user space buffers from/to which I/O is being staged */
+ struct iovec *iov;
+
+ /* number of elements in the iovector */
+ unsigned long nr_segs;
+
+ /* set to indicate the type of the operation */
+ int rw;
+
+ /* file offset */
+ loff_t offset;
+
+ /* and the count in bytes */
+ size_t bytes_to_be_copied;
+
+ ssize_t bytes_copied;
+ int needs_cleanup;
+};
+
+struct orangefs_stats {
+ unsigned long cache_hits;
+ unsigned long cache_misses;
+ unsigned long reads;
+ unsigned long writes;
+};
+
+extern struct orangefs_stats g_orangefs_stats;
+
+/*
+ * NOTE: See Documentation/filesystems/porting for information
+ * on implementing FOO_I and properly accessing fs private data
+ */
+static inline struct orangefs_inode_s *ORANGEFS_I(struct inode *inode)
+{
+ return container_of(inode, struct orangefs_inode_s, vfs_inode);
+}
+
+static inline struct orangefs_sb_info_s *ORANGEFS_SB(struct super_block *sb)
+{
+ return (struct orangefs_sb_info_s *) sb->s_fs_info;
+}
+
+/* ino_t descends from "unsigned long", 8 bytes, 64 bits. */
+static inline ino_t orangefs_khandle_to_ino(struct orangefs_khandle *khandle)
+{
+ union {
+ unsigned char u[8];
+ __u64 ino;
+ } ihandle;
+
+ ihandle.u[0] = khandle->u[0] ^ khandle->u[4];
+ ihandle.u[1] = khandle->u[1] ^ khandle->u[5];
+ ihandle.u[2] = khandle->u[2] ^ khandle->u[6];
+ ihandle.u[3] = khandle->u[3] ^ khandle->u[7];
+ ihandle.u[4] = khandle->u[12] ^ khandle->u[8];
+ ihandle.u[5] = khandle->u[13] ^ khandle->u[9];
+ ihandle.u[6] = khandle->u[14] ^ khandle->u[10];
+ ihandle.u[7] = khandle->u[15] ^ khandle->u[11];
+
+ return ihandle.ino;
+}
+
+static inline struct orangefs_khandle *get_khandle_from_ino(struct inode *inode)
+{
+ return &(ORANGEFS_I(inode)->refn.khandle);
+}
+
+static inline __s32 get_fsid_from_ino(struct inode *inode)
+{
+ return ORANGEFS_I(inode)->refn.fs_id;
+}
+
+static inline ino_t get_ino_from_khandle(struct inode *inode)
+{
+ struct orangefs_khandle *khandle;
+ ino_t ino;
+
+ khandle = get_khandle_from_ino(inode);
+ ino = orangefs_khandle_to_ino(khandle);
+ return ino;
+}
+
+static inline ino_t get_parent_ino_from_dentry(struct dentry *dentry)
+{
+ return get_ino_from_khandle(dentry->d_parent->d_inode);
+}
+
+static inline int is_root_handle(struct inode *inode)
+{
+ gossip_debug(GOSSIP_DCACHE_DEBUG,
+ "%s: root handle: %pU, this handle: %pU:\n",
+ __func__,
+ &ORANGEFS_SB(inode->i_sb)->root_khandle,
+ get_khandle_from_ino(inode));
+
+ if (ORANGEFS_khandle_cmp(&(ORANGEFS_SB(inode->i_sb)->root_khandle),
+ get_khandle_from_ino(inode)))
+ return 0;
+ else
+ return 1;
+}
+
+static inline int match_handle(struct orangefs_khandle resp_handle,
+ struct inode *inode)
+{
+ gossip_debug(GOSSIP_DCACHE_DEBUG,
+ "%s: one handle: %pU, another handle:%pU:\n",
+ __func__,
+ &resp_handle,
+ get_khandle_from_ino(inode));
+
+ if (ORANGEFS_khandle_cmp(&resp_handle, get_khandle_from_ino(inode)))
+ return 0;
+ else
+ return 1;
+}
+
+/*
+ * defined in orangefs-cache.c
+ */
+int op_cache_initialize(void);
+int op_cache_finalize(void);
+struct orangefs_kernel_op_s *op_alloc(__s32 type);
+char *get_opname_string(struct orangefs_kernel_op_s *new_op);
+void op_release(struct orangefs_kernel_op_s *op);
+
+int dev_req_cache_initialize(void);
+int dev_req_cache_finalize(void);
+void *dev_req_alloc(void);
+void dev_req_release(void *);
+
+int orangefs_inode_cache_initialize(void);
+int orangefs_inode_cache_finalize(void);
+
+int kiocb_cache_initialize(void);
+int kiocb_cache_finalize(void);
+struct orangefs_kiocb_s *kiocb_alloc(void);
+void kiocb_release(struct orangefs_kiocb_s *ptr);
+
+/*
+ * defined in orangefs-mod.c
+ */
+void purge_inprogress_ops(void);
+
+/*
+ * defined in waitqueue.c
+ */
+int wait_for_matching_downcall(struct orangefs_kernel_op_s *op);
+int wait_for_cancellation_downcall(struct orangefs_kernel_op_s *op);
+void orangefs_clean_up_interrupted_operation(struct orangefs_kernel_op_s *op);
+void purge_waiting_ops(void);
+
+/*
+ * defined in super.c
+ */
+struct dentry *orangefs_mount(struct file_system_type *fst,
+ int flags,
+ const char *devname,
+ void *data);
+
+void orangefs_kill_sb(struct super_block *sb);
+int orangefs_remount(struct super_block *sb);
+
+int fsid_key_table_initialize(void);
+void fsid_key_table_finalize(void);
+
+/*
+ * defined in inode.c
+ */
+__u32 convert_to_orangefs_mask(unsigned long lite_mask);
+struct inode *orangefs_new_inode(struct super_block *sb,
+ struct inode *dir,
+ int mode,
+ dev_t dev,
+ struct orangefs_object_kref *ref);
+
+int orangefs_setattr(struct dentry *dentry, struct iattr *iattr);
+
+int orangefs_getattr(struct vfsmount *mnt,
+ struct dentry *dentry,
+ struct kstat *kstat);
+
+/*
+ * defined in xattr.c
+ */
+int orangefs_setxattr(struct dentry *dentry,
+ const char *name,
+ const void *value,
+ size_t size,
+ int flags);
+
+ssize_t orangefs_getxattr(struct dentry *dentry,
+ const char *name,
+ void *buffer,
+ size_t size);
+
+ssize_t orangefs_listxattr(struct dentry *dentry, char *buffer, size_t size);
+
+/*
+ * defined in namei.c
+ */
+struct inode *orangefs_iget(struct super_block *sb,
+ struct orangefs_object_kref *ref);
+
+ssize_t orangefs_inode_read(struct inode *inode,
+ struct iov_iter *iter,
+ loff_t *offset,
+ loff_t readahead_size);
+
+/*
+ * defined in devorangefs-req.c
+ */
+int orangefs_dev_init(void);
+void orangefs_dev_cleanup(void);
+int is_daemon_in_service(void);
+int fs_mount_pending(__s32 fsid);
+
+/*
+ * defined in orangefs-utils.c
+ */
+__s32 fsid_of_op(struct orangefs_kernel_op_s *op);
+
+int orangefs_flush_inode(struct inode *inode);
+
+ssize_t orangefs_inode_getxattr(struct inode *inode,
+ const char *prefix,
+ const char *name,
+ void *buffer,
+ size_t size);
+
+int orangefs_inode_setxattr(struct inode *inode,
+ const char *prefix,
+ const char *name,
+ const void *value,
+ size_t size,
+ int flags);
+
+int orangefs_inode_getattr(struct inode *inode, __u32 mask);
+
+int orangefs_inode_setattr(struct inode *inode, struct iattr *iattr);
+
+void orangefs_op_initialize(struct orangefs_kernel_op_s *op);
+
+void orangefs_make_bad_inode(struct inode *inode);
+
+void block_signals(sigset_t *);
+
+void set_signals(sigset_t *);
+
+int orangefs_unmount_sb(struct super_block *sb);
+
+int orangefs_cancel_op_in_progress(__u64 tag);
+
+static inline __u64 orangefs_convert_time_field(const struct timespec *ts)
+{
+ return (__u64)ts->tv_sec;
+}
+
+int orangefs_normalize_to_errno(__s32 error_code);
+
+extern struct mutex devreq_mutex;
+extern struct mutex request_mutex;
+extern int debug;
+extern int op_timeout_secs;
+extern int slot_timeout_secs;
+extern struct list_head orangefs_superblocks;
+extern spinlock_t orangefs_superblocks_lock;
+extern struct list_head orangefs_request_list;
+extern spinlock_t orangefs_request_list_lock;
+extern wait_queue_head_t orangefs_request_list_waitq;
+extern struct list_head *htable_ops_in_progress;
+extern spinlock_t htable_ops_in_progress_lock;
+extern int hash_table_size;
+
+extern const struct address_space_operations orangefs_address_operations;
+extern struct backing_dev_info orangefs_backing_dev_info;
+extern struct inode_operations orangefs_file_inode_operations;
+extern const struct file_operations orangefs_file_operations;
+extern struct inode_operations orangefs_symlink_inode_operations;
+extern struct inode_operations orangefs_dir_inode_operations;
+extern const struct file_operations orangefs_dir_operations;
+extern const struct dentry_operations orangefs_dentry_operations;
+extern const struct file_operations orangefs_devreq_file_operations;
+
+extern wait_queue_head_t orangefs_bufmap_init_waitq;
+
+/*
+ * misc convenience macros
+ */
+#define add_op_to_request_list(op) \
+do { \
+ spin_lock(&orangefs_request_list_lock); \
+ spin_lock(&op->lock); \
+ set_op_state_waiting(op); \
+ list_add_tail(&op->list, &orangefs_request_list); \
+ spin_unlock(&orangefs_request_list_lock); \
+ spin_unlock(&op->lock); \
+ wake_up_interruptible(&orangefs_request_list_waitq); \
+} while (0)
+
+#define add_priority_op_to_request_list(op) \
+ do { \
+ spin_lock(&orangefs_request_list_lock); \
+ spin_lock(&op->lock); \
+ set_op_state_waiting(op); \
+ \
+ list_add(&op->list, &orangefs_request_list); \
+ spin_unlock(&orangefs_request_list_lock); \
+ spin_unlock(&op->lock); \
+ wake_up_interruptible(&orangefs_request_list_waitq); \
+} while (0)
+
+#define remove_op_from_request_list(op) \
+ do { \
+ struct list_head *tmp = NULL; \
+ struct list_head *tmp_safe = NULL; \
+ struct orangefs_kernel_op_s *tmp_op = NULL; \
+ \
+ spin_lock(&orangefs_request_list_lock); \
+ list_for_each_safe(tmp, tmp_safe, &orangefs_request_list) { \
+ tmp_op = list_entry(tmp, \
+ struct orangefs_kernel_op_s, \
+ list); \
+ if (tmp_op && (tmp_op == op)) { \
+ list_del(&tmp_op->list); \
+ break; \
+ } \
+ } \
+ spin_unlock(&orangefs_request_list_lock); \
+ } while (0)
+
+#define ORANGEFS_OP_INTERRUPTIBLE 1 /* service_operation() is interruptible */
+#define ORANGEFS_OP_PRIORITY 2 /* service_operation() is high priority */
+#define ORANGEFS_OP_CANCELLATION 4 /* this is a cancellation */
+#define ORANGEFS_OP_NO_SEMAPHORE 8 /* don't acquire semaphore */
+#define ORANGEFS_OP_ASYNC 16 /* Queue it, but don't wait */
+
+int service_operation(struct orangefs_kernel_op_s *op,
+ const char *op_name,
+ int flags);
+
+/*
+ * handles two possible error cases, depending on context.
+ *
+ * by design, our vfs i/o errors need to be handled in one of two ways,
+ * depending on where the error occured.
+ *
+ * if the error happens in the waitqueue code because we either timed
+ * out or a signal was raised while waiting, we need to cancel the
+ * userspace i/o operation and free the op manually. this is done to
+ * avoid having the device start writing application data to our shared
+ * bufmap pages without us expecting it.
+ *
+ * FIXME: POSSIBLE OPTIMIZATION:
+ * However, if we timed out or if we got a signal AND our upcall was never
+ * picked off the queue (i.e. we were in OP_VFS_STATE_WAITING), then we don't
+ * need to send a cancellation upcall. The way we can handle this is
+ * set error_exit to 2 in such cases and 1 whenever cancellation has to be
+ * sent and have handle_error
+ * take care of this situation as well..
+ *
+ * if a orangefs sysint level error occured and i/o has been completed,
+ * there is no need to cancel the operation, as the user has finished
+ * using the bufmap page and so there is no danger in this case. in
+ * this case, we wake up the device normally so that it may free the
+ * op, as normal.
+ *
+ * note the only reason this is a macro is because both read and write
+ * cases need the exact same handling code.
+ */
+#define handle_io_error() \
+do { \
+ if (!op_state_serviced(new_op)) { \
+ orangefs_cancel_op_in_progress(new_op->tag); \
+ op_release(new_op); \
+ } else { \
+ wake_up_daemon_for_return(new_op); \
+ } \
+ new_op = NULL; \
+ orangefs_bufmap_put(bufmap, buffer_index); \
+ buffer_index = -1; \
+} while (0)
+
+#define get_interruptible_flag(inode) \
+ ((ORANGEFS_SB(inode->i_sb)->flags & ORANGEFS_OPT_INTR) ? \
+ ORANGEFS_OP_INTERRUPTIBLE : 0)
+
+#define add_orangefs_sb(sb) \
+do { \
+ gossip_debug(GOSSIP_SUPER_DEBUG, \
+ "Adding SB %p to orangefs superblocks\n", \
+ ORANGEFS_SB(sb)); \
+ spin_lock(&orangefs_superblocks_lock); \
+ list_add_tail(&ORANGEFS_SB(sb)->list, &orangefs_superblocks); \
+ spin_unlock(&orangefs_superblocks_lock); \
+} while (0)
+
+#define remove_orangefs_sb(sb) \
+do { \
+ struct list_head *tmp = NULL; \
+ struct list_head *tmp_safe = NULL; \
+ struct orangefs_sb_info_s *orangefs_sb = NULL; \
+ \
+ spin_lock(&orangefs_superblocks_lock); \
+ list_for_each_safe(tmp, tmp_safe, &orangefs_superblocks) { \
+ orangefs_sb = list_entry(tmp, \
+ struct orangefs_sb_info_s, \
+ list); \
+ if (orangefs_sb && (orangefs_sb->sb == sb)) { \
+ gossip_debug(GOSSIP_SUPER_DEBUG, \
+ "Removing SB %p from orangefs superblocks\n", \
+ orangefs_sb); \
+ list_del(&orangefs_sb->list); \
+ break; \
+ } \
+ } \
+ spin_unlock(&orangefs_superblocks_lock); \
+} while (0)
+
+#define orangefs_lock_inode(inode) spin_lock(&inode->i_lock)
+#define orangefs_unlock_inode(inode) spin_unlock(&inode->i_lock)
+
+#define fill_default_sys_attrs(sys_attr, type, mode) \
+do { \
+ sys_attr.owner = from_kuid(current_user_ns(), current_fsuid()); \
+ sys_attr.group = from_kgid(current_user_ns(), current_fsgid()); \
+ sys_attr.size = 0; \
+ sys_attr.perms = ORANGEFS_util_translate_mode(mode); \
+ sys_attr.objtype = type; \
+ sys_attr.mask = ORANGEFS_ATTR_SYS_ALL_SETABLE; \
+} while (0)
+
+#define orangefs_inode_lock(__i) mutex_lock(&(__i)->i_mutex)
+
+#define orangefs_inode_unlock(__i) mutex_unlock(&(__i)->i_mutex)
+
+static inline void orangefs_i_size_write(struct inode *inode, loff_t i_size)
+{
+#if BITS_PER_LONG == 32 && defined(CONFIG_SMP)
+ ornagefs_inode_lock(inode);
+#endif
+ i_size_write(inode, i_size);
+#if BITS_PER_LONG == 32 && defined(CONFIG_SMP)
+ orangefs_inode_unlock(inode);
+#endif
+}
+
+static inline unsigned int diff(struct timeval *end, struct timeval *begin)
+{
+ if (end->tv_usec < begin->tv_usec) {
+ end->tv_usec += 1000000;
+ end->tv_sec--;
+ }
+ end->tv_sec -= begin->tv_sec;
+ end->tv_usec -= begin->tv_usec;
+ return (end->tv_sec * 1000000) + end->tv_usec;
+}
+
+#endif /* __ORANGEFSKERNEL_H */
--- /dev/null
+/*
+ * (C) 2001 Clemson University and The University of Chicago
+ *
+ * Changes by Acxiom Corporation to add proc file handler for pvfs2 client
+ * parameters, Copyright Acxiom Corporation, 2005.
+ *
+ * See COPYING in top-level directory.
+ */
+
+#include "protocol.h"
+#include "orangefs-kernel.h"
+#include "orangefs-debugfs.h"
+#include "orangefs-sysfs.h"
+
+/* ORANGEFS_VERSION is a ./configure define */
+#ifndef ORANGEFS_VERSION
+#define ORANGEFS_VERSION "Unknown"
+#endif
+
+/*
+ * global variables declared here
+ */
+
+/* array of client debug keyword/mask values */
+struct client_debug_mask *cdm_array;
+int cdm_element_count;
+
+char kernel_debug_string[ORANGEFS_MAX_DEBUG_STRING_LEN] = "none";
+char client_debug_string[ORANGEFS_MAX_DEBUG_STRING_LEN];
+char client_debug_array_string[ORANGEFS_MAX_DEBUG_STRING_LEN];
+
+char *debug_help_string;
+int help_string_initialized;
+struct dentry *help_file_dentry;
+struct dentry *client_debug_dentry;
+struct dentry *debug_dir;
+int client_verbose_index;
+int client_all_index;
+struct orangefs_stats g_orangefs_stats;
+
+/* the size of the hash tables for ops in progress */
+int hash_table_size = 509;
+
+static ulong module_parm_debug_mask;
+__u64 gossip_debug_mask;
+struct client_debug_mask client_debug_mask = { NULL, 0, 0 };
+unsigned int kernel_mask_set_mod_init; /* implicitly false */
+int op_timeout_secs = ORANGEFS_DEFAULT_OP_TIMEOUT_SECS;
+int slot_timeout_secs = ORANGEFS_DEFAULT_SLOT_TIMEOUT_SECS;
+
+MODULE_LICENSE("GPL");
+MODULE_AUTHOR("ORANGEFS Development Team");
+MODULE_DESCRIPTION("The Linux Kernel VFS interface to ORANGEFS");
+MODULE_PARM_DESC(module_parm_debug_mask, "debugging level (see orangefs-debug.h for values)");
+MODULE_PARM_DESC(op_timeout_secs, "Operation timeout in seconds");
+MODULE_PARM_DESC(slot_timeout_secs, "Slot timeout in seconds");
+MODULE_PARM_DESC(hash_table_size,
+ "size of hash table for operations in progress");
+
+static struct file_system_type orangefs_fs_type = {
+ .name = "pvfs2",
+ .mount = orangefs_mount,
+ .kill_sb = orangefs_kill_sb,
+ .owner = THIS_MODULE,
+};
+
+module_param(hash_table_size, int, 0);
+module_param(module_parm_debug_mask, ulong, 0644);
+module_param(op_timeout_secs, int, 0);
+module_param(slot_timeout_secs, int, 0);
+
+/* synchronizes the request device file */
+struct mutex devreq_mutex;
+
+/*
+ * Blocks non-priority requests from being queued for servicing. This
+ * could be used for protecting the request list data structure, but
+ * for now it's only being used to stall the op addition to the request
+ * list
+ */
+struct mutex request_mutex;
+
+/* hash table for storing operations waiting for matching downcall */
+struct list_head *htable_ops_in_progress;
+DEFINE_SPINLOCK(htable_ops_in_progress_lock);
+
+/* list for queueing upcall operations */
+LIST_HEAD(orangefs_request_list);
+
+/* used to protect the above orangefs_request_list */
+DEFINE_SPINLOCK(orangefs_request_list_lock);
+
+/* used for incoming request notification */
+DECLARE_WAIT_QUEUE_HEAD(orangefs_request_list_waitq);
+
+static int __init orangefs_init(void)
+{
+ int ret = -1;
+ __u32 i = 0;
+
+ /* convert input debug mask to a 64-bit unsigned integer */
+ gossip_debug_mask = (unsigned long long) module_parm_debug_mask;
+
+ /*
+ * set the kernel's gossip debug string; invalid mask values will
+ * be ignored.
+ */
+ debug_mask_to_string(&gossip_debug_mask, 0);
+
+ /* remove any invalid values from the mask */
+ debug_string_to_mask(kernel_debug_string, &gossip_debug_mask, 0);
+
+ /*
+ * if the mask has a non-zero value, then indicate that the mask
+ * was set when the kernel module was loaded. The orangefs dev ioctl
+ * command will look at this boolean to determine if the kernel's
+ * debug mask should be overwritten when the client-core is started.
+ */
+ if (gossip_debug_mask != 0)
+ kernel_mask_set_mod_init = true;
+
+ /* print information message to the system log */
+ pr_info("orangefs: orangefs_init called with debug mask: :%s: :%llx:\n",
+ kernel_debug_string,
+ (unsigned long long)gossip_debug_mask);
+
+ ret = bdi_init(&orangefs_backing_dev_info);
+
+ if (ret)
+ return ret;
+
+ if (op_timeout_secs < 0)
+ op_timeout_secs = 0;
+
+ if (slot_timeout_secs < 0)
+ slot_timeout_secs = 0;
+
+ /* initialize global book keeping data structures */
+ ret = op_cache_initialize();
+ if (ret < 0)
+ goto err;
+
+ ret = dev_req_cache_initialize();
+ if (ret < 0)
+ goto cleanup_op;
+
+ ret = orangefs_inode_cache_initialize();
+ if (ret < 0)
+ goto cleanup_req;
+
+ ret = kiocb_cache_initialize();
+ if (ret < 0)
+ goto cleanup_inode;
+
+ /* Initialize the orangefsdev subsystem. */
+ ret = orangefs_dev_init();
+ if (ret < 0) {
+ gossip_err("orangefs: could not initialize device subsystem %d!\n",
+ ret);
+ goto cleanup_kiocb;
+ }
+
+ mutex_init(&devreq_mutex);
+ mutex_init(&request_mutex);
+
+ htable_ops_in_progress =
+ kcalloc(hash_table_size, sizeof(struct list_head), GFP_KERNEL);
+ if (!htable_ops_in_progress) {
+ gossip_err("Failed to initialize op hashtable");
+ ret = -ENOMEM;
+ goto cleanup_device;
+ }
+
+ /* initialize a doubly linked at each hash table index */
+ for (i = 0; i < hash_table_size; i++)
+ INIT_LIST_HEAD(&htable_ops_in_progress[i]);
+
+ ret = fsid_key_table_initialize();
+ if (ret < 0)
+ goto cleanup_progress_table;
+
+ /*
+ * Build the contents of /sys/kernel/debug/orangefs/debug-help
+ * from the keywords in the kernel keyword/mask array.
+ *
+ * The keywords in the client keyword/mask array are
+ * unknown at boot time.
+ *
+ * orangefs_prepare_debugfs_help_string will be used again
+ * later to rebuild the debug-help file after the client starts
+ * and passes along the needed info. The argument signifies
+ * which time orangefs_prepare_debugfs_help_string is being
+ * called.
+ *
+ */
+ ret = orangefs_prepare_debugfs_help_string(1);
+ if (ret)
+ goto out;
+
+ orangefs_debugfs_init();
+ orangefs_kernel_debug_init();
+ orangefs_sysfs_init();
+
+ ret = register_filesystem(&orangefs_fs_type);
+ if (ret == 0) {
+ pr_info("orangefs: module version %s loaded\n", ORANGEFS_VERSION);
+ return 0;
+ }
+
+ orangefs_debugfs_cleanup();
+ orangefs_sysfs_exit();
+ fsid_key_table_finalize();
+
+cleanup_progress_table:
+ kfree(htable_ops_in_progress);
+
+cleanup_device:
+ orangefs_dev_cleanup();
+
+cleanup_kiocb:
+ kiocb_cache_finalize();
+
+cleanup_inode:
+ orangefs_inode_cache_finalize();
+
+cleanup_req:
+ dev_req_cache_finalize();
+
+cleanup_op:
+ op_cache_finalize();
+
+err:
+ bdi_destroy(&orangefs_backing_dev_info);
+
+out:
+ return ret;
+}
+
+static void __exit orangefs_exit(void)
+{
+ int i = 0;
+ struct orangefs_kernel_op_s *cur_op = NULL;
+
+ gossip_debug(GOSSIP_INIT_DEBUG, "orangefs: orangefs_exit called\n");
+
+ unregister_filesystem(&orangefs_fs_type);
+ orangefs_debugfs_cleanup();
+ orangefs_sysfs_exit();
+ fsid_key_table_finalize();
+ orangefs_dev_cleanup();
+ /* clear out all pending upcall op requests */
+ spin_lock(&orangefs_request_list_lock);
+ while (!list_empty(&orangefs_request_list)) {
+ cur_op = list_entry(orangefs_request_list.next,
+ struct orangefs_kernel_op_s,
+ list);
+ list_del(&cur_op->list);
+ gossip_debug(GOSSIP_INIT_DEBUG,
+ "Freeing unhandled upcall request type %d\n",
+ cur_op->upcall.type);
+ op_release(cur_op);
+ }
+ spin_unlock(&orangefs_request_list_lock);
+
+ for (i = 0; i < hash_table_size; i++)
+ while (!list_empty(&htable_ops_in_progress[i])) {
+ cur_op = list_entry(htable_ops_in_progress[i].next,
+ struct orangefs_kernel_op_s,
+ list);
+ op_release(cur_op);
+ }
+
+ kiocb_cache_finalize();
+ orangefs_inode_cache_finalize();
+ dev_req_cache_finalize();
+ op_cache_finalize();
+
+ kfree(htable_ops_in_progress);
+
+ bdi_destroy(&orangefs_backing_dev_info);
+
+ pr_info("orangefs: module version %s unloaded\n", ORANGEFS_VERSION);
+}
+
+/*
+ * What we do in this function is to walk the list of operations
+ * that are in progress in the hash table and mark them as purged as well.
+ */
+void purge_inprogress_ops(void)
+{
+ int i;
+
+ for (i = 0; i < hash_table_size; i++) {
+ struct orangefs_kernel_op_s *op;
+ struct orangefs_kernel_op_s *next;
+
+ list_for_each_entry_safe(op,
+ next,
+ &htable_ops_in_progress[i],
+ list) {
+ spin_lock(&op->lock);
+ gossip_debug(GOSSIP_INIT_DEBUG,
+ "pvfs2-client-core: purging in-progress op tag "
+ "%llu %s\n",
+ llu(op->tag),
+ get_opname_string(op));
+ set_op_state_purged(op);
+ spin_unlock(&op->lock);
+ wake_up_interruptible(&op->waitq);
+ }
+ }
+}
+
+module_init(orangefs_init);
+module_exit(orangefs_exit);
--- /dev/null
+/*
+ * Documentation/ABI/stable/orangefs-sysfs:
+ *
+ * What: /sys/fs/orangefs/perf_counter_reset
+ * Date: June 2015
+ * Contact: Mike Marshall <hubcap@omnibond.com>
+ * Description:
+ * echo a 0 or a 1 into perf_counter_reset to
+ * reset all the counters in
+ * /sys/fs/orangefs/perf_counters
+ * except ones with PINT_PERF_PRESERVE set.
+ *
+ *
+ * What: /sys/fs/orangefs/perf_counters/...
+ * Date: Jun 2015
+ * Contact: Mike Marshall <hubcap@omnibond.com>
+ * Description:
+ * Counters and settings for various caches.
+ * Read only.
+ *
+ *
+ * What: /sys/fs/orangefs/perf_time_interval_secs
+ * Date: Jun 2015
+ * Contact: Mike Marshall <hubcap@omnibond.com>
+ * Description:
+ * Length of perf counter intervals in
+ * seconds.
+ *
+ *
+ * What: /sys/fs/orangefs/perf_history_size
+ * Date: Jun 2015
+ * Contact: Mike Marshall <hubcap@omnibond.com>
+ * Description:
+ * The perf_counters cache statistics have N, or
+ * perf_history_size, samples. The default is
+ * one.
+ *
+ * Every perf_time_interval_secs the (first)
+ * samples are reset.
+ *
+ * If N is greater than one, the "current" set
+ * of samples is reset, and the samples from the
+ * other N-1 intervals remain available.
+ *
+ *
+ * What: /sys/fs/orangefs/op_timeout_secs
+ * Date: Jun 2015
+ * Contact: Mike Marshall <hubcap@omnibond.com>
+ * Description:
+ * Service operation timeout in seconds.
+ *
+ *
+ * What: /sys/fs/orangefs/slot_timeout_secs
+ * Date: Jun 2015
+ * Contact: Mike Marshall <hubcap@omnibond.com>
+ * Description:
+ * "Slot" timeout in seconds. A "slot"
+ * is an indexed buffer in the shared
+ * memory segment used for communication
+ * between the kernel module and userspace.
+ * Slots are requested and waited for,
+ * the wait times out after slot_timeout_secs.
+ *
+ *
+ * What: /sys/fs/orangefs/acache/...
+ * Date: Jun 2015
+ * Contact: Mike Marshall <hubcap@omnibond.com>
+ * Description:
+ * Attribute cache configurable settings.
+ *
+ *
+ * What: /sys/fs/orangefs/ncache/...
+ * Date: Jun 2015
+ * Contact: Mike Marshall <hubcap@omnibond.com>
+ * Description:
+ * Name cache configurable settings.
+ *
+ *
+ * What: /sys/fs/orangefs/capcache/...
+ * Date: Jun 2015
+ * Contact: Mike Marshall <hubcap@omnibond.com>
+ * Description:
+ * Capability cache configurable settings.
+ *
+ *
+ * What: /sys/fs/orangefs/ccache/...
+ * Date: Jun 2015
+ * Contact: Mike Marshall <hubcap@omnibond.com>
+ * Description:
+ * Credential cache configurable settings.
+ *
+ */
+
+#include <linux/fs.h>
+#include <linux/kobject.h>
+#include <linux/string.h>
+#include <linux/sysfs.h>
+#include <linux/module.h>
+#include <linux/init.h>
+
+#include "protocol.h"
+#include "orangefs-kernel.h"
+#include "orangefs-sysfs.h"
+
+#define ORANGEFS_KOBJ_ID "orangefs"
+#define ACACHE_KOBJ_ID "acache"
+#define CAPCACHE_KOBJ_ID "capcache"
+#define CCACHE_KOBJ_ID "ccache"
+#define NCACHE_KOBJ_ID "ncache"
+#define PC_KOBJ_ID "pc"
+#define STATS_KOBJ_ID "stats"
+
+struct orangefs_obj {
+ struct kobject kobj;
+ int op_timeout_secs;
+ int perf_counter_reset;
+ int perf_history_size;
+ int perf_time_interval_secs;
+ int slot_timeout_secs;
+};
+
+struct acache_orangefs_obj {
+ struct kobject kobj;
+ int hard_limit;
+ int reclaim_percentage;
+ int soft_limit;
+ int timeout_msecs;
+};
+
+struct capcache_orangefs_obj {
+ struct kobject kobj;
+ int hard_limit;
+ int reclaim_percentage;
+ int soft_limit;
+ int timeout_secs;
+};
+
+struct ccache_orangefs_obj {
+ struct kobject kobj;
+ int hard_limit;
+ int reclaim_percentage;
+ int soft_limit;
+ int timeout_secs;
+};
+
+struct ncache_orangefs_obj {
+ struct kobject kobj;
+ int hard_limit;
+ int reclaim_percentage;
+ int soft_limit;
+ int timeout_msecs;
+};
+
+struct pc_orangefs_obj {
+ struct kobject kobj;
+ char *acache;
+ char *capcache;
+ char *ncache;
+};
+
+struct stats_orangefs_obj {
+ struct kobject kobj;
+ int reads;
+ int writes;
+};
+
+struct orangefs_attribute {
+ struct attribute attr;
+ ssize_t (*show)(struct orangefs_obj *orangefs_obj,
+ struct orangefs_attribute *attr,
+ char *buf);
+ ssize_t (*store)(struct orangefs_obj *orangefs_obj,
+ struct orangefs_attribute *attr,
+ const char *buf,
+ size_t count);
+};
+
+struct acache_orangefs_attribute {
+ struct attribute attr;
+ ssize_t (*show)(struct acache_orangefs_obj *acache_orangefs_obj,
+ struct acache_orangefs_attribute *attr,
+ char *buf);
+ ssize_t (*store)(struct acache_orangefs_obj *acache_orangefs_obj,
+ struct acache_orangefs_attribute *attr,
+ const char *buf,
+ size_t count);
+};
+
+struct capcache_orangefs_attribute {
+ struct attribute attr;
+ ssize_t (*show)(struct capcache_orangefs_obj *capcache_orangefs_obj,
+ struct capcache_orangefs_attribute *attr,
+ char *buf);
+ ssize_t (*store)(struct capcache_orangefs_obj *capcache_orangefs_obj,
+ struct capcache_orangefs_attribute *attr,
+ const char *buf,
+ size_t count);
+};
+
+struct ccache_orangefs_attribute {
+ struct attribute attr;
+ ssize_t (*show)(struct ccache_orangefs_obj *ccache_orangefs_obj,
+ struct ccache_orangefs_attribute *attr,
+ char *buf);
+ ssize_t (*store)(struct ccache_orangefs_obj *ccache_orangefs_obj,
+ struct ccache_orangefs_attribute *attr,
+ const char *buf,
+ size_t count);
+};
+
+struct ncache_orangefs_attribute {
+ struct attribute attr;
+ ssize_t (*show)(struct ncache_orangefs_obj *ncache_orangefs_obj,
+ struct ncache_orangefs_attribute *attr,
+ char *buf);
+ ssize_t (*store)(struct ncache_orangefs_obj *ncache_orangefs_obj,
+ struct ncache_orangefs_attribute *attr,
+ const char *buf,
+ size_t count);
+};
+
+struct pc_orangefs_attribute {
+ struct attribute attr;
+ ssize_t (*show)(struct pc_orangefs_obj *pc_orangefs_obj,
+ struct pc_orangefs_attribute *attr,
+ char *buf);
+ ssize_t (*store)(struct pc_orangefs_obj *pc_orangefs_obj,
+ struct pc_orangefs_attribute *attr,
+ const char *buf,
+ size_t count);
+};
+
+struct stats_orangefs_attribute {
+ struct attribute attr;
+ ssize_t (*show)(struct stats_orangefs_obj *stats_orangefs_obj,
+ struct stats_orangefs_attribute *attr,
+ char *buf);
+ ssize_t (*store)(struct stats_orangefs_obj *stats_orangefs_obj,
+ struct stats_orangefs_attribute *attr,
+ const char *buf,
+ size_t count);
+};
+
+static ssize_t orangefs_attr_show(struct kobject *kobj,
+ struct attribute *attr,
+ char *buf)
+{
+ struct orangefs_attribute *attribute;
+ struct orangefs_obj *orangefs_obj;
+ int rc;
+
+ attribute = container_of(attr, struct orangefs_attribute, attr);
+ orangefs_obj = container_of(kobj, struct orangefs_obj, kobj);
+
+ if (!attribute->show) {
+ rc = -EIO;
+ goto out;
+ }
+
+ rc = attribute->show(orangefs_obj, attribute, buf);
+
+out:
+ return rc;
+}
+
+static ssize_t orangefs_attr_store(struct kobject *kobj,
+ struct attribute *attr,
+ const char *buf,
+ size_t len)
+{
+ struct orangefs_attribute *attribute;
+ struct orangefs_obj *orangefs_obj;
+ int rc;
+
+ gossip_debug(GOSSIP_SYSFS_DEBUG,
+ "orangefs_attr_store: start\n");
+
+ attribute = container_of(attr, struct orangefs_attribute, attr);
+ orangefs_obj = container_of(kobj, struct orangefs_obj, kobj);
+
+ if (!attribute->store) {
+ rc = -EIO;
+ goto out;
+ }
+
+ rc = attribute->store(orangefs_obj, attribute, buf, len);
+
+out:
+ return rc;
+}
+
+static const struct sysfs_ops orangefs_sysfs_ops = {
+ .show = orangefs_attr_show,
+ .store = orangefs_attr_store,
+};
+
+static ssize_t acache_orangefs_attr_show(struct kobject *kobj,
+ struct attribute *attr,
+ char *buf)
+{
+ struct acache_orangefs_attribute *attribute;
+ struct acache_orangefs_obj *acache_orangefs_obj;
+ int rc;
+
+ attribute = container_of(attr, struct acache_orangefs_attribute, attr);
+ acache_orangefs_obj =
+ container_of(kobj, struct acache_orangefs_obj, kobj);
+
+ if (!attribute->show) {
+ rc = -EIO;
+ goto out;
+ }
+
+ rc = attribute->show(acache_orangefs_obj, attribute, buf);
+
+out:
+ return rc;
+}
+
+static ssize_t acache_orangefs_attr_store(struct kobject *kobj,
+ struct attribute *attr,
+ const char *buf,
+ size_t len)
+{
+ struct acache_orangefs_attribute *attribute;
+ struct acache_orangefs_obj *acache_orangefs_obj;
+ int rc;
+
+ gossip_debug(GOSSIP_SYSFS_DEBUG,
+ "acache_orangefs_attr_store: start\n");
+
+ attribute = container_of(attr, struct acache_orangefs_attribute, attr);
+ acache_orangefs_obj =
+ container_of(kobj, struct acache_orangefs_obj, kobj);
+
+ if (!attribute->store) {
+ rc = -EIO;
+ goto out;
+ }
+
+ rc = attribute->store(acache_orangefs_obj, attribute, buf, len);
+
+out:
+ return rc;
+}
+
+static const struct sysfs_ops acache_orangefs_sysfs_ops = {
+ .show = acache_orangefs_attr_show,
+ .store = acache_orangefs_attr_store,
+};
+
+static ssize_t capcache_orangefs_attr_show(struct kobject *kobj,
+ struct attribute *attr,
+ char *buf)
+{
+ struct capcache_orangefs_attribute *attribute;
+ struct capcache_orangefs_obj *capcache_orangefs_obj;
+ int rc;
+
+ attribute =
+ container_of(attr, struct capcache_orangefs_attribute, attr);
+ capcache_orangefs_obj =
+ container_of(kobj, struct capcache_orangefs_obj, kobj);
+
+ if (!attribute->show) {
+ rc = -EIO;
+ goto out;
+ }
+
+ rc = attribute->show(capcache_orangefs_obj, attribute, buf);
+
+out:
+ return rc;
+}
+
+static ssize_t capcache_orangefs_attr_store(struct kobject *kobj,
+ struct attribute *attr,
+ const char *buf,
+ size_t len)
+{
+ struct capcache_orangefs_attribute *attribute;
+ struct capcache_orangefs_obj *capcache_orangefs_obj;
+ int rc;
+
+ gossip_debug(GOSSIP_SYSFS_DEBUG,
+ "capcache_orangefs_attr_store: start\n");
+
+ attribute =
+ container_of(attr, struct capcache_orangefs_attribute, attr);
+ capcache_orangefs_obj =
+ container_of(kobj, struct capcache_orangefs_obj, kobj);
+
+ if (!attribute->store) {
+ rc = -EIO;
+ goto out;
+ }
+
+ rc = attribute->store(capcache_orangefs_obj, attribute, buf, len);
+
+out:
+ return rc;
+}
+
+static const struct sysfs_ops capcache_orangefs_sysfs_ops = {
+ .show = capcache_orangefs_attr_show,
+ .store = capcache_orangefs_attr_store,
+};
+
+static ssize_t ccache_orangefs_attr_show(struct kobject *kobj,
+ struct attribute *attr,
+ char *buf)
+{
+ struct ccache_orangefs_attribute *attribute;
+ struct ccache_orangefs_obj *ccache_orangefs_obj;
+ int rc;
+
+ attribute =
+ container_of(attr, struct ccache_orangefs_attribute, attr);
+ ccache_orangefs_obj =
+ container_of(kobj, struct ccache_orangefs_obj, kobj);
+
+ if (!attribute->show) {
+ rc = -EIO;
+ goto out;
+ }
+
+ rc = attribute->show(ccache_orangefs_obj, attribute, buf);
+
+out:
+ return rc;
+}
+
+static ssize_t ccache_orangefs_attr_store(struct kobject *kobj,
+ struct attribute *attr,
+ const char *buf,
+ size_t len)
+{
+ struct ccache_orangefs_attribute *attribute;
+ struct ccache_orangefs_obj *ccache_orangefs_obj;
+ int rc;
+
+ gossip_debug(GOSSIP_SYSFS_DEBUG,
+ "ccache_orangefs_attr_store: start\n");
+
+ attribute =
+ container_of(attr, struct ccache_orangefs_attribute, attr);
+ ccache_orangefs_obj =
+ container_of(kobj, struct ccache_orangefs_obj, kobj);
+
+ if (!attribute->store) {
+ rc = -EIO;
+ goto out;
+ }
+
+ rc = attribute->store(ccache_orangefs_obj, attribute, buf, len);
+
+out:
+ return rc;
+}
+
+static const struct sysfs_ops ccache_orangefs_sysfs_ops = {
+ .show = ccache_orangefs_attr_show,
+ .store = ccache_orangefs_attr_store,
+};
+
+static ssize_t ncache_orangefs_attr_show(struct kobject *kobj,
+ struct attribute *attr,
+ char *buf)
+{
+ struct ncache_orangefs_attribute *attribute;
+ struct ncache_orangefs_obj *ncache_orangefs_obj;
+ int rc;
+
+ attribute = container_of(attr, struct ncache_orangefs_attribute, attr);
+ ncache_orangefs_obj =
+ container_of(kobj, struct ncache_orangefs_obj, kobj);
+
+ if (!attribute->show) {
+ rc = -EIO;
+ goto out;
+ }
+
+ rc = attribute->show(ncache_orangefs_obj, attribute, buf);
+
+out:
+ return rc;
+}
+
+static ssize_t ncache_orangefs_attr_store(struct kobject *kobj,
+ struct attribute *attr,
+ const char *buf,
+ size_t len)
+{
+ struct ncache_orangefs_attribute *attribute;
+ struct ncache_orangefs_obj *ncache_orangefs_obj;
+ int rc;
+
+ gossip_debug(GOSSIP_SYSFS_DEBUG,
+ "ncache_orangefs_attr_store: start\n");
+
+ attribute = container_of(attr, struct ncache_orangefs_attribute, attr);
+ ncache_orangefs_obj =
+ container_of(kobj, struct ncache_orangefs_obj, kobj);
+
+ if (!attribute->store) {
+ rc = -EIO;
+ goto out;
+ }
+
+ rc = attribute->store(ncache_orangefs_obj, attribute, buf, len);
+
+out:
+ return rc;
+}
+
+static const struct sysfs_ops ncache_orangefs_sysfs_ops = {
+ .show = ncache_orangefs_attr_show,
+ .store = ncache_orangefs_attr_store,
+};
+
+static ssize_t pc_orangefs_attr_show(struct kobject *kobj,
+ struct attribute *attr,
+ char *buf)
+{
+ struct pc_orangefs_attribute *attribute;
+ struct pc_orangefs_obj *pc_orangefs_obj;
+ int rc;
+
+ attribute = container_of(attr, struct pc_orangefs_attribute, attr);
+ pc_orangefs_obj =
+ container_of(kobj, struct pc_orangefs_obj, kobj);
+
+ if (!attribute->show) {
+ rc = -EIO;
+ goto out;
+ }
+
+ rc = attribute->show(pc_orangefs_obj, attribute, buf);
+
+out:
+ return rc;
+}
+
+static const struct sysfs_ops pc_orangefs_sysfs_ops = {
+ .show = pc_orangefs_attr_show,
+};
+
+static ssize_t stats_orangefs_attr_show(struct kobject *kobj,
+ struct attribute *attr,
+ char *buf)
+{
+ struct stats_orangefs_attribute *attribute;
+ struct stats_orangefs_obj *stats_orangefs_obj;
+ int rc;
+
+ attribute = container_of(attr, struct stats_orangefs_attribute, attr);
+ stats_orangefs_obj =
+ container_of(kobj, struct stats_orangefs_obj, kobj);
+
+ if (!attribute->show) {
+ rc = -EIO;
+ goto out;
+ }
+
+ rc = attribute->show(stats_orangefs_obj, attribute, buf);
+
+out:
+ return rc;
+}
+
+static const struct sysfs_ops stats_orangefs_sysfs_ops = {
+ .show = stats_orangefs_attr_show,
+};
+
+static void orangefs_release(struct kobject *kobj)
+{
+ struct orangefs_obj *orangefs_obj;
+
+ orangefs_obj = container_of(kobj, struct orangefs_obj, kobj);
+ kfree(orangefs_obj);
+}
+
+static void acache_orangefs_release(struct kobject *kobj)
+{
+ struct acache_orangefs_obj *acache_orangefs_obj;
+
+ acache_orangefs_obj =
+ container_of(kobj, struct acache_orangefs_obj, kobj);
+ kfree(acache_orangefs_obj);
+}
+
+static void capcache_orangefs_release(struct kobject *kobj)
+{
+ struct capcache_orangefs_obj *capcache_orangefs_obj;
+
+ capcache_orangefs_obj =
+ container_of(kobj, struct capcache_orangefs_obj, kobj);
+ kfree(capcache_orangefs_obj);
+}
+
+static void ccache_orangefs_release(struct kobject *kobj)
+{
+ struct ccache_orangefs_obj *ccache_orangefs_obj;
+
+ ccache_orangefs_obj =
+ container_of(kobj, struct ccache_orangefs_obj, kobj);
+ kfree(ccache_orangefs_obj);
+}
+
+static void ncache_orangefs_release(struct kobject *kobj)
+{
+ struct ncache_orangefs_obj *ncache_orangefs_obj;
+
+ ncache_orangefs_obj =
+ container_of(kobj, struct ncache_orangefs_obj, kobj);
+ kfree(ncache_orangefs_obj);
+}
+
+static void pc_orangefs_release(struct kobject *kobj)
+{
+ struct pc_orangefs_obj *pc_orangefs_obj;
+
+ pc_orangefs_obj =
+ container_of(kobj, struct pc_orangefs_obj, kobj);
+ kfree(pc_orangefs_obj);
+}
+
+static void stats_orangefs_release(struct kobject *kobj)
+{
+ struct stats_orangefs_obj *stats_orangefs_obj;
+
+ stats_orangefs_obj =
+ container_of(kobj, struct stats_orangefs_obj, kobj);
+ kfree(stats_orangefs_obj);
+}
+
+static ssize_t sysfs_int_show(char *kobj_id, char *buf, void *attr)
+{
+ int rc = -EIO;
+ struct orangefs_attribute *orangefs_attr;
+ struct stats_orangefs_attribute *stats_orangefs_attr;
+
+ gossip_debug(GOSSIP_SYSFS_DEBUG, "sysfs_int_show: id:%s:\n", kobj_id);
+
+ if (!strcmp(kobj_id, ORANGEFS_KOBJ_ID)) {
+ orangefs_attr = (struct orangefs_attribute *)attr;
+
+ if (!strcmp(orangefs_attr->attr.name, "op_timeout_secs")) {
+ rc = scnprintf(buf,
+ PAGE_SIZE,
+ "%d\n",
+ op_timeout_secs);
+ goto out;
+ } else if (!strcmp(orangefs_attr->attr.name,
+ "slot_timeout_secs")) {
+ rc = scnprintf(buf,
+ PAGE_SIZE,
+ "%d\n",
+ slot_timeout_secs);
+ goto out;
+ } else {
+ goto out;
+ }
+
+ } else if (!strcmp(kobj_id, STATS_KOBJ_ID)) {
+ stats_orangefs_attr = (struct stats_orangefs_attribute *)attr;
+
+ if (!strcmp(stats_orangefs_attr->attr.name, "reads")) {
+ rc = scnprintf(buf,
+ PAGE_SIZE,
+ "%lu\n",
+ g_orangefs_stats.reads);
+ goto out;
+ } else if (!strcmp(stats_orangefs_attr->attr.name, "writes")) {
+ rc = scnprintf(buf,
+ PAGE_SIZE,
+ "%lu\n",
+ g_orangefs_stats.writes);
+ goto out;
+ } else {
+ goto out;
+ }
+ }
+
+out:
+
+ return rc;
+}
+
+static ssize_t int_orangefs_show(struct orangefs_obj *orangefs_obj,
+ struct orangefs_attribute *attr,
+ char *buf)
+{
+ int rc;
+
+ gossip_debug(GOSSIP_SYSFS_DEBUG,
+ "int_orangefs_show:start attr->attr.name:%s:\n",
+ attr->attr.name);
+
+ rc = sysfs_int_show(ORANGEFS_KOBJ_ID, buf, (void *) attr);
+
+ return rc;
+}
+
+static ssize_t int_stats_show(struct stats_orangefs_obj *stats_orangefs_obj,
+ struct stats_orangefs_attribute *attr,
+ char *buf)
+{
+ int rc;
+
+ gossip_debug(GOSSIP_SYSFS_DEBUG,
+ "int_stats_show:start attr->attr.name:%s:\n",
+ attr->attr.name);
+
+ rc = sysfs_int_show(STATS_KOBJ_ID, buf, (void *) attr);
+
+ return rc;
+}
+
+static ssize_t int_store(struct orangefs_obj *orangefs_obj,
+ struct orangefs_attribute *attr,
+ const char *buf,
+ size_t count)
+{
+ int rc = 0;
+
+ gossip_debug(GOSSIP_SYSFS_DEBUG,
+ "int_store: start attr->attr.name:%s: buf:%s:\n",
+ attr->attr.name, buf);
+
+ if (!strcmp(attr->attr.name, "op_timeout_secs")) {
+ rc = kstrtoint(buf, 0, &op_timeout_secs);
+ goto out;
+ } else if (!strcmp(attr->attr.name, "slot_timeout_secs")) {
+ rc = kstrtoint(buf, 0, &slot_timeout_secs);
+ goto out;
+ } else {
+ goto out;
+ }
+
+out:
+ if (rc)
+ rc = -EINVAL;
+ else
+ rc = count;
+
+ return rc;
+}
+
+/*
+ * obtain attribute values from userspace with a service operation.
+ */
+static int sysfs_service_op_show(char *kobj_id, char *buf, void *attr)
+{
+ struct orangefs_kernel_op_s *new_op = NULL;
+ int rc = 0;
+ char *ser_op_type = NULL;
+ struct orangefs_attribute *orangefs_attr;
+ struct acache_orangefs_attribute *acache_attr;
+ struct capcache_orangefs_attribute *capcache_attr;
+ struct ccache_orangefs_attribute *ccache_attr;
+ struct ncache_orangefs_attribute *ncache_attr;
+ struct pc_orangefs_attribute *pc_attr;
+ __u32 op_alloc_type;
+
+ gossip_debug(GOSSIP_SYSFS_DEBUG,
+ "sysfs_service_op_show: id:%s:\n",
+ kobj_id);
+
+ if (strcmp(kobj_id, PC_KOBJ_ID))
+ op_alloc_type = ORANGEFS_VFS_OP_PARAM;
+ else
+ op_alloc_type = ORANGEFS_VFS_OP_PERF_COUNT;
+
+ new_op = op_alloc(op_alloc_type);
+ if (!new_op) {
+ rc = -ENOMEM;
+ goto out;
+ }
+
+ /* Can't do a service_operation if the client is not running... */
+ rc = is_daemon_in_service();
+ if (rc) {
+ pr_info("%s: Client not running :%d:\n",
+ __func__,
+ is_daemon_in_service());
+ goto out;
+ }
+
+ if (strcmp(kobj_id, PC_KOBJ_ID))
+ new_op->upcall.req.param.type = ORANGEFS_PARAM_REQUEST_GET;
+
+ if (!strcmp(kobj_id, ORANGEFS_KOBJ_ID)) {
+ orangefs_attr = (struct orangefs_attribute *)attr;
+
+ if (!strcmp(orangefs_attr->attr.name, "perf_history_size"))
+ new_op->upcall.req.param.op =
+ ORANGEFS_PARAM_REQUEST_OP_PERF_HISTORY_SIZE;
+ else if (!strcmp(orangefs_attr->attr.name,
+ "perf_time_interval_secs"))
+ new_op->upcall.req.param.op =
+ ORANGEFS_PARAM_REQUEST_OP_PERF_TIME_INTERVAL_SECS;
+ else if (!strcmp(orangefs_attr->attr.name,
+ "perf_counter_reset"))
+ new_op->upcall.req.param.op =
+ ORANGEFS_PARAM_REQUEST_OP_PERF_RESET;
+
+ } else if (!strcmp(kobj_id, ACACHE_KOBJ_ID)) {
+ acache_attr = (struct acache_orangefs_attribute *)attr;
+
+ if (!strcmp(acache_attr->attr.name, "timeout_msecs"))
+ new_op->upcall.req.param.op =
+ ORANGEFS_PARAM_REQUEST_OP_ACACHE_TIMEOUT_MSECS;
+
+ if (!strcmp(acache_attr->attr.name, "hard_limit"))
+ new_op->upcall.req.param.op =
+ ORANGEFS_PARAM_REQUEST_OP_ACACHE_HARD_LIMIT;
+
+ if (!strcmp(acache_attr->attr.name, "soft_limit"))
+ new_op->upcall.req.param.op =
+ ORANGEFS_PARAM_REQUEST_OP_ACACHE_SOFT_LIMIT;
+
+ if (!strcmp(acache_attr->attr.name, "reclaim_percentage"))
+ new_op->upcall.req.param.op =
+ ORANGEFS_PARAM_REQUEST_OP_ACACHE_RECLAIM_PERCENTAGE;
+
+ } else if (!strcmp(kobj_id, CAPCACHE_KOBJ_ID)) {
+ capcache_attr = (struct capcache_orangefs_attribute *)attr;
+
+ if (!strcmp(capcache_attr->attr.name, "timeout_secs"))
+ new_op->upcall.req.param.op =
+ ORANGEFS_PARAM_REQUEST_OP_CAPCACHE_TIMEOUT_SECS;
+
+ if (!strcmp(capcache_attr->attr.name, "hard_limit"))
+ new_op->upcall.req.param.op =
+ ORANGEFS_PARAM_REQUEST_OP_CAPCACHE_HARD_LIMIT;
+
+ if (!strcmp(capcache_attr->attr.name, "soft_limit"))
+ new_op->upcall.req.param.op =
+ ORANGEFS_PARAM_REQUEST_OP_CAPCACHE_SOFT_LIMIT;
+
+ if (!strcmp(capcache_attr->attr.name, "reclaim_percentage"))
+ new_op->upcall.req.param.op =
+ ORANGEFS_PARAM_REQUEST_OP_CAPCACHE_RECLAIM_PERCENTAGE;
+
+ } else if (!strcmp(kobj_id, CCACHE_KOBJ_ID)) {
+ ccache_attr = (struct ccache_orangefs_attribute *)attr;
+
+ if (!strcmp(ccache_attr->attr.name, "timeout_secs"))
+ new_op->upcall.req.param.op =
+ ORANGEFS_PARAM_REQUEST_OP_CCACHE_TIMEOUT_SECS;
+
+ if (!strcmp(ccache_attr->attr.name, "hard_limit"))
+ new_op->upcall.req.param.op =
+ ORANGEFS_PARAM_REQUEST_OP_CCACHE_HARD_LIMIT;
+
+ if (!strcmp(ccache_attr->attr.name, "soft_limit"))
+ new_op->upcall.req.param.op =
+ ORANGEFS_PARAM_REQUEST_OP_CCACHE_SOFT_LIMIT;
+
+ if (!strcmp(ccache_attr->attr.name, "reclaim_percentage"))
+ new_op->upcall.req.param.op =
+ ORANGEFS_PARAM_REQUEST_OP_CCACHE_RECLAIM_PERCENTAGE;
+
+ } else if (!strcmp(kobj_id, NCACHE_KOBJ_ID)) {
+ ncache_attr = (struct ncache_orangefs_attribute *)attr;
+
+ if (!strcmp(ncache_attr->attr.name, "timeout_msecs"))
+ new_op->upcall.req.param.op =
+ ORANGEFS_PARAM_REQUEST_OP_NCACHE_TIMEOUT_MSECS;
+
+ if (!strcmp(ncache_attr->attr.name, "hard_limit"))
+ new_op->upcall.req.param.op =
+ ORANGEFS_PARAM_REQUEST_OP_NCACHE_HARD_LIMIT;
+
+ if (!strcmp(ncache_attr->attr.name, "soft_limit"))
+ new_op->upcall.req.param.op =
+ ORANGEFS_PARAM_REQUEST_OP_NCACHE_SOFT_LIMIT;
+
+ if (!strcmp(ncache_attr->attr.name, "reclaim_percentage"))
+ new_op->upcall.req.param.op =
+ ORANGEFS_PARAM_REQUEST_OP_NCACHE_RECLAIM_PERCENTAGE;
+
+ } else if (!strcmp(kobj_id, PC_KOBJ_ID)) {
+ pc_attr = (struct pc_orangefs_attribute *)attr;
+
+ if (!strcmp(pc_attr->attr.name, ACACHE_KOBJ_ID))
+ new_op->upcall.req.perf_count.type =
+ ORANGEFS_PERF_COUNT_REQUEST_ACACHE;
+
+ if (!strcmp(pc_attr->attr.name, CAPCACHE_KOBJ_ID))
+ new_op->upcall.req.perf_count.type =
+ ORANGEFS_PERF_COUNT_REQUEST_CAPCACHE;
+
+ if (!strcmp(pc_attr->attr.name, NCACHE_KOBJ_ID))
+ new_op->upcall.req.perf_count.type =
+ ORANGEFS_PERF_COUNT_REQUEST_NCACHE;
+
+ } else {
+ gossip_err("sysfs_service_op_show: unknown kobj_id:%s:\n",
+ kobj_id);
+ rc = -EINVAL;
+ goto out;
+ }
+
+
+ if (strcmp(kobj_id, PC_KOBJ_ID))
+ ser_op_type = "orangefs_param";
+ else
+ ser_op_type = "orangefs_perf_count";
+
+ /*
+ * The service_operation will return an errno return code on
+ * error, and zero on success.
+ */
+ rc = service_operation(new_op, ser_op_type, ORANGEFS_OP_INTERRUPTIBLE);
+
+out:
+ if (!rc) {
+ if (strcmp(kobj_id, PC_KOBJ_ID)) {
+ rc = scnprintf(buf,
+ PAGE_SIZE,
+ "%d\n",
+ (int)new_op->downcall.resp.param.value);
+ } else {
+ rc = scnprintf(
+ buf,
+ PAGE_SIZE,
+ "%s",
+ new_op->downcall.resp.perf_count.buffer);
+ }
+ }
+
+ /*
+ * if we got ENOMEM, then op_alloc probably failed...
+ */
+ if (rc != -ENOMEM)
+ op_release(new_op);
+
+ return rc;
+
+}
+
+static ssize_t service_orangefs_show(struct orangefs_obj *orangefs_obj,
+ struct orangefs_attribute *attr,
+ char *buf)
+{
+ int rc = 0;
+
+ rc = sysfs_service_op_show(ORANGEFS_KOBJ_ID, buf, (void *)attr);
+
+ return rc;
+}
+
+static ssize_t
+ service_acache_show(struct acache_orangefs_obj *acache_orangefs_obj,
+ struct acache_orangefs_attribute *attr,
+ char *buf)
+{
+ int rc = 0;
+
+ rc = sysfs_service_op_show(ACACHE_KOBJ_ID, buf, (void *)attr);
+
+ return rc;
+}
+
+static ssize_t service_capcache_show(struct capcache_orangefs_obj
+ *capcache_orangefs_obj,
+ struct capcache_orangefs_attribute *attr,
+ char *buf)
+{
+ int rc = 0;
+
+ rc = sysfs_service_op_show(CAPCACHE_KOBJ_ID, buf, (void *)attr);
+
+ return rc;
+}
+
+static ssize_t service_ccache_show(struct ccache_orangefs_obj
+ *ccache_orangefs_obj,
+ struct ccache_orangefs_attribute *attr,
+ char *buf)
+{
+ int rc = 0;
+
+ rc = sysfs_service_op_show(CCACHE_KOBJ_ID, buf, (void *)attr);
+
+ return rc;
+}
+
+static ssize_t
+ service_ncache_show(struct ncache_orangefs_obj *ncache_orangefs_obj,
+ struct ncache_orangefs_attribute *attr,
+ char *buf)
+{
+ int rc = 0;
+
+ rc = sysfs_service_op_show(NCACHE_KOBJ_ID, buf, (void *)attr);
+
+ return rc;
+}
+
+static ssize_t
+ service_pc_show(struct pc_orangefs_obj *pc_orangefs_obj,
+ struct pc_orangefs_attribute *attr,
+ char *buf)
+{
+ int rc = 0;
+
+ rc = sysfs_service_op_show(PC_KOBJ_ID, buf, (void *)attr);
+
+ return rc;
+}
+
+/*
+ * pass attribute values back to userspace with a service operation.
+ *
+ * We have to do a memory allocation, an sscanf and a service operation.
+ * And we have to evaluate what the user entered, to make sure the
+ * value is within the range supported by the attribute. So, there's
+ * a lot of return code checking and mapping going on here.
+ *
+ * We want to return 1 if we think everything went OK, and
+ * EINVAL if not.
+ */
+static int sysfs_service_op_store(char *kobj_id, const char *buf, void *attr)
+{
+ struct orangefs_kernel_op_s *new_op = NULL;
+ int val = 0;
+ int rc = 0;
+ struct orangefs_attribute *orangefs_attr;
+ struct acache_orangefs_attribute *acache_attr;
+ struct capcache_orangefs_attribute *capcache_attr;
+ struct ccache_orangefs_attribute *ccache_attr;
+ struct ncache_orangefs_attribute *ncache_attr;
+
+ gossip_debug(GOSSIP_SYSFS_DEBUG,
+ "sysfs_service_op_store: id:%s:\n",
+ kobj_id);
+
+ new_op = op_alloc(ORANGEFS_VFS_OP_PARAM);
+ if (!new_op) {
+ rc = -ENOMEM;
+ goto out;
+ }
+
+ /* Can't do a service_operation if the client is not running... */
+ rc = is_daemon_in_service();
+ if (rc) {
+ pr_info("%s: Client not running :%d:\n",
+ __func__,
+ is_daemon_in_service());
+ goto out;
+ }
+
+ /*
+ * The value we want to send back to userspace is in buf.
+ */
+ rc = kstrtoint(buf, 0, &val);
+ if (rc)
+ goto out;
+
+ if (!strcmp(kobj_id, ORANGEFS_KOBJ_ID)) {
+ orangefs_attr = (struct orangefs_attribute *)attr;
+
+ if (!strcmp(orangefs_attr->attr.name, "perf_history_size")) {
+ if (val > 0) {
+ new_op->upcall.req.param.op =
+ ORANGEFS_PARAM_REQUEST_OP_PERF_HISTORY_SIZE;
+ } else {
+ rc = 0;
+ goto out;
+ }
+ } else if (!strcmp(orangefs_attr->attr.name,
+ "perf_time_interval_secs")) {
+ if (val > 0) {
+ new_op->upcall.req.param.op =
+ ORANGEFS_PARAM_REQUEST_OP_PERF_TIME_INTERVAL_SECS;
+ } else {
+ rc = 0;
+ goto out;
+ }
+ } else if (!strcmp(orangefs_attr->attr.name,
+ "perf_counter_reset")) {
+ if ((val == 0) || (val == 1)) {
+ new_op->upcall.req.param.op =
+ ORANGEFS_PARAM_REQUEST_OP_PERF_RESET;
+ } else {
+ rc = 0;
+ goto out;
+ }
+ }
+
+ } else if (!strcmp(kobj_id, ACACHE_KOBJ_ID)) {
+ acache_attr = (struct acache_orangefs_attribute *)attr;
+
+ if (!strcmp(acache_attr->attr.name, "hard_limit")) {
+ if (val > -1) {
+ new_op->upcall.req.param.op =
+ ORANGEFS_PARAM_REQUEST_OP_ACACHE_HARD_LIMIT;
+ } else {
+ rc = 0;
+ goto out;
+ }
+ } else if (!strcmp(acache_attr->attr.name, "soft_limit")) {
+ if (val > -1) {
+ new_op->upcall.req.param.op =
+ ORANGEFS_PARAM_REQUEST_OP_ACACHE_SOFT_LIMIT;
+ } else {
+ rc = 0;
+ goto out;
+ }
+ } else if (!strcmp(acache_attr->attr.name,
+ "reclaim_percentage")) {
+ if ((val > -1) && (val < 101)) {
+ new_op->upcall.req.param.op =
+ ORANGEFS_PARAM_REQUEST_OP_ACACHE_RECLAIM_PERCENTAGE;
+ } else {
+ rc = 0;
+ goto out;
+ }
+ } else if (!strcmp(acache_attr->attr.name, "timeout_msecs")) {
+ if (val > -1) {
+ new_op->upcall.req.param.op =
+ ORANGEFS_PARAM_REQUEST_OP_ACACHE_TIMEOUT_MSECS;
+ } else {
+ rc = 0;
+ goto out;
+ }
+ }
+
+ } else if (!strcmp(kobj_id, CAPCACHE_KOBJ_ID)) {
+ capcache_attr = (struct capcache_orangefs_attribute *)attr;
+
+ if (!strcmp(capcache_attr->attr.name, "hard_limit")) {
+ if (val > -1) {
+ new_op->upcall.req.param.op =
+ ORANGEFS_PARAM_REQUEST_OP_CAPCACHE_HARD_LIMIT;
+ } else {
+ rc = 0;
+ goto out;
+ }
+ } else if (!strcmp(capcache_attr->attr.name, "soft_limit")) {
+ if (val > -1) {
+ new_op->upcall.req.param.op =
+ ORANGEFS_PARAM_REQUEST_OP_CAPCACHE_SOFT_LIMIT;
+ } else {
+ rc = 0;
+ goto out;
+ }
+ } else if (!strcmp(capcache_attr->attr.name,
+ "reclaim_percentage")) {
+ if ((val > -1) && (val < 101)) {
+ new_op->upcall.req.param.op =
+ ORANGEFS_PARAM_REQUEST_OP_CAPCACHE_RECLAIM_PERCENTAGE;
+ } else {
+ rc = 0;
+ goto out;
+ }
+ } else if (!strcmp(capcache_attr->attr.name, "timeout_secs")) {
+ if (val > -1) {
+ new_op->upcall.req.param.op =
+ ORANGEFS_PARAM_REQUEST_OP_CAPCACHE_TIMEOUT_SECS;
+ } else {
+ rc = 0;
+ goto out;
+ }
+ }
+
+ } else if (!strcmp(kobj_id, CCACHE_KOBJ_ID)) {
+ ccache_attr = (struct ccache_orangefs_attribute *)attr;
+
+ if (!strcmp(ccache_attr->attr.name, "hard_limit")) {
+ if (val > -1) {
+ new_op->upcall.req.param.op =
+ ORANGEFS_PARAM_REQUEST_OP_CCACHE_HARD_LIMIT;
+ } else {
+ rc = 0;
+ goto out;
+ }
+ } else if (!strcmp(ccache_attr->attr.name, "soft_limit")) {
+ if (val > -1) {
+ new_op->upcall.req.param.op =
+ ORANGEFS_PARAM_REQUEST_OP_CCACHE_SOFT_LIMIT;
+ } else {
+ rc = 0;
+ goto out;
+ }
+ } else if (!strcmp(ccache_attr->attr.name,
+ "reclaim_percentage")) {
+ if ((val > -1) && (val < 101)) {
+ new_op->upcall.req.param.op =
+ ORANGEFS_PARAM_REQUEST_OP_CCACHE_RECLAIM_PERCENTAGE;
+ } else {
+ rc = 0;
+ goto out;
+ }
+ } else if (!strcmp(ccache_attr->attr.name, "timeout_secs")) {
+ if (val > -1) {
+ new_op->upcall.req.param.op =
+ ORANGEFS_PARAM_REQUEST_OP_CCACHE_TIMEOUT_SECS;
+ } else {
+ rc = 0;
+ goto out;
+ }
+ }
+
+ } else if (!strcmp(kobj_id, NCACHE_KOBJ_ID)) {
+ ncache_attr = (struct ncache_orangefs_attribute *)attr;
+
+ if (!strcmp(ncache_attr->attr.name, "hard_limit")) {
+ if (val > -1) {
+ new_op->upcall.req.param.op =
+ ORANGEFS_PARAM_REQUEST_OP_NCACHE_HARD_LIMIT;
+ } else {
+ rc = 0;
+ goto out;
+ }
+ } else if (!strcmp(ncache_attr->attr.name, "soft_limit")) {
+ if (val > -1) {
+ new_op->upcall.req.param.op =
+ ORANGEFS_PARAM_REQUEST_OP_NCACHE_SOFT_LIMIT;
+ } else {
+ rc = 0;
+ goto out;
+ }
+ } else if (!strcmp(ncache_attr->attr.name,
+ "reclaim_percentage")) {
+ if ((val > -1) && (val < 101)) {
+ new_op->upcall.req.param.op =
+ ORANGEFS_PARAM_REQUEST_OP_NCACHE_RECLAIM_PERCENTAGE;
+ } else {
+ rc = 0;
+ goto out;
+ }
+ } else if (!strcmp(ncache_attr->attr.name, "timeout_msecs")) {
+ if (val > -1) {
+ new_op->upcall.req.param.op =
+ ORANGEFS_PARAM_REQUEST_OP_NCACHE_TIMEOUT_MSECS;
+ } else {
+ rc = 0;
+ goto out;
+ }
+ }
+
+ } else {
+ gossip_err("sysfs_service_op_store: unknown kobj_id:%s:\n",
+ kobj_id);
+ rc = -EINVAL;
+ goto out;
+ }
+
+ new_op->upcall.req.param.type = ORANGEFS_PARAM_REQUEST_SET;
+
+ new_op->upcall.req.param.value = val;
+
+ /*
+ * The service_operation will return a errno return code on
+ * error, and zero on success.
+ */
+ rc = service_operation(new_op, "orangefs_param", ORANGEFS_OP_INTERRUPTIBLE);
+
+ if (rc < 0) {
+ gossip_err("sysfs_service_op_store: service op returned:%d:\n",
+ rc);
+ rc = 0;
+ } else {
+ rc = 1;
+ }
+
+out:
+ /*
+ * if we got ENOMEM, then op_alloc probably failed...
+ */
+ if (rc == -ENOMEM)
+ rc = 0;
+ else
+ op_release(new_op);
+
+ if (rc == 0)
+ rc = -EINVAL;
+
+ return rc;
+}
+
+static ssize_t
+ service_orangefs_store(struct orangefs_obj *orangefs_obj,
+ struct orangefs_attribute *attr,
+ const char *buf,
+ size_t count)
+{
+ int rc = 0;
+
+ rc = sysfs_service_op_store(ORANGEFS_KOBJ_ID, buf, (void *) attr);
+
+ /* rc should have an errno value if the service_op went bad. */
+ if (rc == 1)
+ rc = count;
+
+ return rc;
+}
+
+static ssize_t
+ service_acache_store(struct acache_orangefs_obj *acache_orangefs_obj,
+ struct acache_orangefs_attribute *attr,
+ const char *buf,
+ size_t count)
+{
+ int rc = 0;
+
+ rc = sysfs_service_op_store(ACACHE_KOBJ_ID, buf, (void *) attr);
+
+ /* rc should have an errno value if the service_op went bad. */
+ if (rc == 1)
+ rc = count;
+
+ return rc;
+}
+
+static ssize_t
+ service_capcache_store(struct capcache_orangefs_obj
+ *capcache_orangefs_obj,
+ struct capcache_orangefs_attribute *attr,
+ const char *buf,
+ size_t count)
+{
+ int rc = 0;
+
+ rc = sysfs_service_op_store(CAPCACHE_KOBJ_ID, buf, (void *) attr);
+
+ /* rc should have an errno value if the service_op went bad. */
+ if (rc == 1)
+ rc = count;
+
+ return rc;
+}
+
+static ssize_t service_ccache_store(struct ccache_orangefs_obj
+ *ccache_orangefs_obj,
+ struct ccache_orangefs_attribute *attr,
+ const char *buf,
+ size_t count)
+{
+ int rc = 0;
+
+ rc = sysfs_service_op_store(CCACHE_KOBJ_ID, buf, (void *) attr);
+
+ /* rc should have an errno value if the service_op went bad. */
+ if (rc == 1)
+ rc = count;
+
+ return rc;
+}
+
+static ssize_t
+ service_ncache_store(struct ncache_orangefs_obj *ncache_orangefs_obj,
+ struct ncache_orangefs_attribute *attr,
+ const char *buf,
+ size_t count)
+{
+ int rc = 0;
+
+ rc = sysfs_service_op_store(NCACHE_KOBJ_ID, buf, (void *) attr);
+
+ /* rc should have an errno value if the service_op went bad. */
+ if (rc == 1)
+ rc = count;
+
+ return rc;
+}
+
+static struct orangefs_attribute op_timeout_secs_attribute =
+ __ATTR(op_timeout_secs, 0664, int_orangefs_show, int_store);
+
+static struct orangefs_attribute slot_timeout_secs_attribute =
+ __ATTR(slot_timeout_secs, 0664, int_orangefs_show, int_store);
+
+static struct orangefs_attribute perf_counter_reset_attribute =
+ __ATTR(perf_counter_reset,
+ 0664,
+ service_orangefs_show,
+ service_orangefs_store);
+
+static struct orangefs_attribute perf_history_size_attribute =
+ __ATTR(perf_history_size,
+ 0664,
+ service_orangefs_show,
+ service_orangefs_store);
+
+static struct orangefs_attribute perf_time_interval_secs_attribute =
+ __ATTR(perf_time_interval_secs,
+ 0664,
+ service_orangefs_show,
+ service_orangefs_store);
+
+static struct attribute *orangefs_default_attrs[] = {
+ &op_timeout_secs_attribute.attr,
+ &slot_timeout_secs_attribute.attr,
+ &perf_counter_reset_attribute.attr,
+ &perf_history_size_attribute.attr,
+ &perf_time_interval_secs_attribute.attr,
+ NULL,
+};
+
+static struct kobj_type orangefs_ktype = {
+ .sysfs_ops = &orangefs_sysfs_ops,
+ .release = orangefs_release,
+ .default_attrs = orangefs_default_attrs,
+};
+
+static struct acache_orangefs_attribute acache_hard_limit_attribute =
+ __ATTR(hard_limit,
+ 0664,
+ service_acache_show,
+ service_acache_store);
+
+static struct acache_orangefs_attribute acache_reclaim_percent_attribute =
+ __ATTR(reclaim_percentage,
+ 0664,
+ service_acache_show,
+ service_acache_store);
+
+static struct acache_orangefs_attribute acache_soft_limit_attribute =
+ __ATTR(soft_limit,
+ 0664,
+ service_acache_show,
+ service_acache_store);
+
+static struct acache_orangefs_attribute acache_timeout_msecs_attribute =
+ __ATTR(timeout_msecs,
+ 0664,
+ service_acache_show,
+ service_acache_store);
+
+static struct attribute *acache_orangefs_default_attrs[] = {
+ &acache_hard_limit_attribute.attr,
+ &acache_reclaim_percent_attribute.attr,
+ &acache_soft_limit_attribute.attr,
+ &acache_timeout_msecs_attribute.attr,
+ NULL,
+};
+
+static struct kobj_type acache_orangefs_ktype = {
+ .sysfs_ops = &acache_orangefs_sysfs_ops,
+ .release = acache_orangefs_release,
+ .default_attrs = acache_orangefs_default_attrs,
+};
+
+static struct capcache_orangefs_attribute capcache_hard_limit_attribute =
+ __ATTR(hard_limit,
+ 0664,
+ service_capcache_show,
+ service_capcache_store);
+
+static struct capcache_orangefs_attribute capcache_reclaim_percent_attribute =
+ __ATTR(reclaim_percentage,
+ 0664,
+ service_capcache_show,
+ service_capcache_store);
+
+static struct capcache_orangefs_attribute capcache_soft_limit_attribute =
+ __ATTR(soft_limit,
+ 0664,
+ service_capcache_show,
+ service_capcache_store);
+
+static struct capcache_orangefs_attribute capcache_timeout_secs_attribute =
+ __ATTR(timeout_secs,
+ 0664,
+ service_capcache_show,
+ service_capcache_store);
+
+static struct attribute *capcache_orangefs_default_attrs[] = {
+ &capcache_hard_limit_attribute.attr,
+ &capcache_reclaim_percent_attribute.attr,
+ &capcache_soft_limit_attribute.attr,
+ &capcache_timeout_secs_attribute.attr,
+ NULL,
+};
+
+static struct kobj_type capcache_orangefs_ktype = {
+ .sysfs_ops = &capcache_orangefs_sysfs_ops,
+ .release = capcache_orangefs_release,
+ .default_attrs = capcache_orangefs_default_attrs,
+};
+
+static struct ccache_orangefs_attribute ccache_hard_limit_attribute =
+ __ATTR(hard_limit,
+ 0664,
+ service_ccache_show,
+ service_ccache_store);
+
+static struct ccache_orangefs_attribute ccache_reclaim_percent_attribute =
+ __ATTR(reclaim_percentage,
+ 0664,
+ service_ccache_show,
+ service_ccache_store);
+
+static struct ccache_orangefs_attribute ccache_soft_limit_attribute =
+ __ATTR(soft_limit,
+ 0664,
+ service_ccache_show,
+ service_ccache_store);
+
+static struct ccache_orangefs_attribute ccache_timeout_secs_attribute =
+ __ATTR(timeout_secs,
+ 0664,
+ service_ccache_show,
+ service_ccache_store);
+
+static struct attribute *ccache_orangefs_default_attrs[] = {
+ &ccache_hard_limit_attribute.attr,
+ &ccache_reclaim_percent_attribute.attr,
+ &ccache_soft_limit_attribute.attr,
+ &ccache_timeout_secs_attribute.attr,
+ NULL,
+};
+
+static struct kobj_type ccache_orangefs_ktype = {
+ .sysfs_ops = &ccache_orangefs_sysfs_ops,
+ .release = ccache_orangefs_release,
+ .default_attrs = ccache_orangefs_default_attrs,
+};
+
+static struct ncache_orangefs_attribute ncache_hard_limit_attribute =
+ __ATTR(hard_limit,
+ 0664,
+ service_ncache_show,
+ service_ncache_store);
+
+static struct ncache_orangefs_attribute ncache_reclaim_percent_attribute =
+ __ATTR(reclaim_percentage,
+ 0664,
+ service_ncache_show,
+ service_ncache_store);
+
+static struct ncache_orangefs_attribute ncache_soft_limit_attribute =
+ __ATTR(soft_limit,
+ 0664,
+ service_ncache_show,
+ service_ncache_store);
+
+static struct ncache_orangefs_attribute ncache_timeout_msecs_attribute =
+ __ATTR(timeout_msecs,
+ 0664,
+ service_ncache_show,
+ service_ncache_store);
+
+static struct attribute *ncache_orangefs_default_attrs[] = {
+ &ncache_hard_limit_attribute.attr,
+ &ncache_reclaim_percent_attribute.attr,
+ &ncache_soft_limit_attribute.attr,
+ &ncache_timeout_msecs_attribute.attr,
+ NULL,
+};
+
+static struct kobj_type ncache_orangefs_ktype = {
+ .sysfs_ops = &ncache_orangefs_sysfs_ops,
+ .release = ncache_orangefs_release,
+ .default_attrs = ncache_orangefs_default_attrs,
+};
+
+static struct pc_orangefs_attribute pc_acache_attribute =
+ __ATTR(acache,
+ 0664,
+ service_pc_show,
+ NULL);
+
+static struct pc_orangefs_attribute pc_capcache_attribute =
+ __ATTR(capcache,
+ 0664,
+ service_pc_show,
+ NULL);
+
+static struct pc_orangefs_attribute pc_ncache_attribute =
+ __ATTR(ncache,
+ 0664,
+ service_pc_show,
+ NULL);
+
+static struct attribute *pc_orangefs_default_attrs[] = {
+ &pc_acache_attribute.attr,
+ &pc_capcache_attribute.attr,
+ &pc_ncache_attribute.attr,
+ NULL,
+};
+
+static struct kobj_type pc_orangefs_ktype = {
+ .sysfs_ops = &pc_orangefs_sysfs_ops,
+ .release = pc_orangefs_release,
+ .default_attrs = pc_orangefs_default_attrs,
+};
+
+static struct stats_orangefs_attribute stats_reads_attribute =
+ __ATTR(reads,
+ 0664,
+ int_stats_show,
+ NULL);
+
+static struct stats_orangefs_attribute stats_writes_attribute =
+ __ATTR(writes,
+ 0664,
+ int_stats_show,
+ NULL);
+
+static struct attribute *stats_orangefs_default_attrs[] = {
+ &stats_reads_attribute.attr,
+ &stats_writes_attribute.attr,
+ NULL,
+};
+
+static struct kobj_type stats_orangefs_ktype = {
+ .sysfs_ops = &stats_orangefs_sysfs_ops,
+ .release = stats_orangefs_release,
+ .default_attrs = stats_orangefs_default_attrs,
+};
+
+static struct orangefs_obj *orangefs_obj;
+static struct acache_orangefs_obj *acache_orangefs_obj;
+static struct capcache_orangefs_obj *capcache_orangefs_obj;
+static struct ccache_orangefs_obj *ccache_orangefs_obj;
+static struct ncache_orangefs_obj *ncache_orangefs_obj;
+static struct pc_orangefs_obj *pc_orangefs_obj;
+static struct stats_orangefs_obj *stats_orangefs_obj;
+
+int orangefs_sysfs_init(void)
+{
+ int rc;
+
+ gossip_debug(GOSSIP_SYSFS_DEBUG, "orangefs_sysfs_init: start\n");
+
+ /* create /sys/fs/orangefs. */
+ orangefs_obj = kzalloc(sizeof(*orangefs_obj), GFP_KERNEL);
+ if (!orangefs_obj) {
+ rc = -EINVAL;
+ goto out;
+ }
+
+ rc = kobject_init_and_add(&orangefs_obj->kobj,
+ &orangefs_ktype,
+ fs_kobj,
+ ORANGEFS_KOBJ_ID);
+
+ if (rc) {
+ kobject_put(&orangefs_obj->kobj);
+ rc = -EINVAL;
+ goto out;
+ }
+
+ kobject_uevent(&orangefs_obj->kobj, KOBJ_ADD);
+
+ /* create /sys/fs/orangefs/acache. */
+ acache_orangefs_obj = kzalloc(sizeof(*acache_orangefs_obj), GFP_KERNEL);
+ if (!acache_orangefs_obj) {
+ rc = -EINVAL;
+ goto out;
+ }
+
+ rc = kobject_init_and_add(&acache_orangefs_obj->kobj,
+ &acache_orangefs_ktype,
+ &orangefs_obj->kobj,
+ ACACHE_KOBJ_ID);
+
+ if (rc) {
+ kobject_put(&acache_orangefs_obj->kobj);
+ rc = -EINVAL;
+ goto out;
+ }
+
+ kobject_uevent(&acache_orangefs_obj->kobj, KOBJ_ADD);
+
+ /* create /sys/fs/orangefs/capcache. */
+ capcache_orangefs_obj =
+ kzalloc(sizeof(*capcache_orangefs_obj), GFP_KERNEL);
+ if (!capcache_orangefs_obj) {
+ rc = -EINVAL;
+ goto out;
+ }
+
+ rc = kobject_init_and_add(&capcache_orangefs_obj->kobj,
+ &capcache_orangefs_ktype,
+ &orangefs_obj->kobj,
+ CAPCACHE_KOBJ_ID);
+ if (rc) {
+ kobject_put(&capcache_orangefs_obj->kobj);
+ rc = -EINVAL;
+ goto out;
+ }
+
+ kobject_uevent(&capcache_orangefs_obj->kobj, KOBJ_ADD);
+
+ /* create /sys/fs/orangefs/ccache. */
+ ccache_orangefs_obj =
+ kzalloc(sizeof(*ccache_orangefs_obj), GFP_KERNEL);
+ if (!ccache_orangefs_obj) {
+ rc = -EINVAL;
+ goto out;
+ }
+
+ rc = kobject_init_and_add(&ccache_orangefs_obj->kobj,
+ &ccache_orangefs_ktype,
+ &orangefs_obj->kobj,
+ CCACHE_KOBJ_ID);
+ if (rc) {
+ kobject_put(&ccache_orangefs_obj->kobj);
+ rc = -EINVAL;
+ goto out;
+ }
+
+ kobject_uevent(&ccache_orangefs_obj->kobj, KOBJ_ADD);
+
+ /* create /sys/fs/orangefs/ncache. */
+ ncache_orangefs_obj = kzalloc(sizeof(*ncache_orangefs_obj), GFP_KERNEL);
+ if (!ncache_orangefs_obj) {
+ rc = -EINVAL;
+ goto out;
+ }
+
+ rc = kobject_init_and_add(&ncache_orangefs_obj->kobj,
+ &ncache_orangefs_ktype,
+ &orangefs_obj->kobj,
+ NCACHE_KOBJ_ID);
+
+ if (rc) {
+ kobject_put(&ncache_orangefs_obj->kobj);
+ rc = -EINVAL;
+ goto out;
+ }
+
+ kobject_uevent(&ncache_orangefs_obj->kobj, KOBJ_ADD);
+
+ /* create /sys/fs/orangefs/perf_counters. */
+ pc_orangefs_obj = kzalloc(sizeof(*pc_orangefs_obj), GFP_KERNEL);
+ if (!pc_orangefs_obj) {
+ rc = -EINVAL;
+ goto out;
+ }
+
+ rc = kobject_init_and_add(&pc_orangefs_obj->kobj,
+ &pc_orangefs_ktype,
+ &orangefs_obj->kobj,
+ "perf_counters");
+
+ if (rc) {
+ kobject_put(&pc_orangefs_obj->kobj);
+ rc = -EINVAL;
+ goto out;
+ }
+
+ kobject_uevent(&pc_orangefs_obj->kobj, KOBJ_ADD);
+
+ /* create /sys/fs/orangefs/stats. */
+ stats_orangefs_obj = kzalloc(sizeof(*stats_orangefs_obj), GFP_KERNEL);
+ if (!stats_orangefs_obj) {
+ rc = -EINVAL;
+ goto out;
+ }
+
+ rc = kobject_init_and_add(&stats_orangefs_obj->kobj,
+ &stats_orangefs_ktype,
+ &orangefs_obj->kobj,
+ STATS_KOBJ_ID);
+
+ if (rc) {
+ kobject_put(&stats_orangefs_obj->kobj);
+ rc = -EINVAL;
+ goto out;
+ }
+
+ kobject_uevent(&stats_orangefs_obj->kobj, KOBJ_ADD);
+out:
+ return rc;
+}
+
+void orangefs_sysfs_exit(void)
+{
+ gossip_debug(GOSSIP_SYSFS_DEBUG, "orangefs_sysfs_exit: start\n");
+
+ kobject_put(&acache_orangefs_obj->kobj);
+ kobject_put(&capcache_orangefs_obj->kobj);
+ kobject_put(&ccache_orangefs_obj->kobj);
+ kobject_put(&ncache_orangefs_obj->kobj);
+ kobject_put(&pc_orangefs_obj->kobj);
+ kobject_put(&stats_orangefs_obj->kobj);
+
+ kobject_put(&orangefs_obj->kobj);
+}
--- /dev/null
+extern int orangefs_sysfs_init(void);
+extern void orangefs_sysfs_exit(void);
--- /dev/null
+/*
+ * (C) 2001 Clemson University and The University of Chicago
+ *
+ * See COPYING in top-level directory.
+ */
+#include "protocol.h"
+#include "orangefs-kernel.h"
+#include "orangefs-dev-proto.h"
+#include "orangefs-bufmap.h"
+
+__s32 fsid_of_op(struct orangefs_kernel_op_s *op)
+{
+ __s32 fsid = ORANGEFS_FS_ID_NULL;
+
+ if (op) {
+ switch (op->upcall.type) {
+ case ORANGEFS_VFS_OP_FILE_IO:
+ fsid = op->upcall.req.io.refn.fs_id;
+ break;
+ case ORANGEFS_VFS_OP_LOOKUP:
+ fsid = op->upcall.req.lookup.parent_refn.fs_id;
+ break;
+ case ORANGEFS_VFS_OP_CREATE:
+ fsid = op->upcall.req.create.parent_refn.fs_id;
+ break;
+ case ORANGEFS_VFS_OP_GETATTR:
+ fsid = op->upcall.req.getattr.refn.fs_id;
+ break;
+ case ORANGEFS_VFS_OP_REMOVE:
+ fsid = op->upcall.req.remove.parent_refn.fs_id;
+ break;
+ case ORANGEFS_VFS_OP_MKDIR:
+ fsid = op->upcall.req.mkdir.parent_refn.fs_id;
+ break;
+ case ORANGEFS_VFS_OP_READDIR:
+ fsid = op->upcall.req.readdir.refn.fs_id;
+ break;
+ case ORANGEFS_VFS_OP_SETATTR:
+ fsid = op->upcall.req.setattr.refn.fs_id;
+ break;
+ case ORANGEFS_VFS_OP_SYMLINK:
+ fsid = op->upcall.req.sym.parent_refn.fs_id;
+ break;
+ case ORANGEFS_VFS_OP_RENAME:
+ fsid = op->upcall.req.rename.old_parent_refn.fs_id;
+ break;
+ case ORANGEFS_VFS_OP_STATFS:
+ fsid = op->upcall.req.statfs.fs_id;
+ break;
+ case ORANGEFS_VFS_OP_TRUNCATE:
+ fsid = op->upcall.req.truncate.refn.fs_id;
+ break;
+ case ORANGEFS_VFS_OP_MMAP_RA_FLUSH:
+ fsid = op->upcall.req.ra_cache_flush.refn.fs_id;
+ break;
+ case ORANGEFS_VFS_OP_FS_UMOUNT:
+ fsid = op->upcall.req.fs_umount.fs_id;
+ break;
+ case ORANGEFS_VFS_OP_GETXATTR:
+ fsid = op->upcall.req.getxattr.refn.fs_id;
+ break;
+ case ORANGEFS_VFS_OP_SETXATTR:
+ fsid = op->upcall.req.setxattr.refn.fs_id;
+ break;
+ case ORANGEFS_VFS_OP_LISTXATTR:
+ fsid = op->upcall.req.listxattr.refn.fs_id;
+ break;
+ case ORANGEFS_VFS_OP_REMOVEXATTR:
+ fsid = op->upcall.req.removexattr.refn.fs_id;
+ break;
+ case ORANGEFS_VFS_OP_FSYNC:
+ fsid = op->upcall.req.fsync.refn.fs_id;
+ break;
+ default:
+ break;
+ }
+ }
+ return fsid;
+}
+
+static void orangefs_set_inode_flags(struct inode *inode,
+ struct ORANGEFS_sys_attr_s *attrs)
+{
+ if (attrs->flags & ORANGEFS_IMMUTABLE_FL)
+ inode->i_flags |= S_IMMUTABLE;
+ else
+ inode->i_flags &= ~S_IMMUTABLE;
+
+ if (attrs->flags & ORANGEFS_APPEND_FL)
+ inode->i_flags |= S_APPEND;
+ else
+ inode->i_flags &= ~S_APPEND;
+
+ if (attrs->flags & ORANGEFS_NOATIME_FL)
+ inode->i_flags |= S_NOATIME;
+ else
+ inode->i_flags &= ~S_NOATIME;
+
+}
+
+/* NOTE: symname is ignored unless the inode is a sym link */
+static int copy_attributes_to_inode(struct inode *inode,
+ struct ORANGEFS_sys_attr_s *attrs,
+ char *symname)
+{
+ int ret = -1;
+ int perm_mode = 0;
+ struct orangefs_inode_s *orangefs_inode = ORANGEFS_I(inode);
+ loff_t inode_size = 0;
+ loff_t rounded_up_size = 0;
+
+
+ /*
+ * arbitrarily set the inode block size; FIXME: we need to
+ * resolve the difference between the reported inode blocksize
+ * and the PAGE_CACHE_SIZE, since our block count will always
+ * be wrong.
+ *
+ * For now, we're setting the block count to be the proper
+ * number assuming the block size is 512 bytes, and the size is
+ * rounded up to the nearest 4K. This is apparently required
+ * to get proper size reports from the 'du' shell utility.
+ *
+ * changing the inode->i_blkbits to something other than
+ * PAGE_CACHE_SHIFT breaks mmap/execution as we depend on that.
+ */
+ gossip_debug(GOSSIP_UTILS_DEBUG,
+ "attrs->mask = %x (objtype = %s)\n",
+ attrs->mask,
+ attrs->objtype == ORANGEFS_TYPE_METAFILE ? "file" :
+ attrs->objtype == ORANGEFS_TYPE_DIRECTORY ? "directory" :
+ attrs->objtype == ORANGEFS_TYPE_SYMLINK ? "symlink" :
+ "invalid/unknown");
+
+ switch (attrs->objtype) {
+ case ORANGEFS_TYPE_METAFILE:
+ orangefs_set_inode_flags(inode, attrs);
+ if (attrs->mask & ORANGEFS_ATTR_SYS_SIZE) {
+ inode_size = (loff_t) attrs->size;
+ rounded_up_size =
+ (inode_size + (4096 - (inode_size % 4096)));
+
+ orangefs_lock_inode(inode);
+ inode->i_bytes = inode_size;
+ inode->i_blocks =
+ (unsigned long)(rounded_up_size / 512);
+ orangefs_unlock_inode(inode);
+
+ /*
+ * NOTE: make sure all the places we're called
+ * from have the inode->i_sem lock. We're fine
+ * in 99% of the cases since we're mostly
+ * called from a lookup.
+ */
+ inode->i_size = inode_size;
+ }
+ break;
+ case ORANGEFS_TYPE_SYMLINK:
+ if (symname != NULL) {
+ inode->i_size = (loff_t) strlen(symname);
+ break;
+ }
+ /*FALLTHRU*/
+ default:
+ inode->i_size = PAGE_CACHE_SIZE;
+
+ orangefs_lock_inode(inode);
+ inode_set_bytes(inode, inode->i_size);
+ orangefs_unlock_inode(inode);
+ break;
+ }
+
+ inode->i_uid = make_kuid(&init_user_ns, attrs->owner);
+ inode->i_gid = make_kgid(&init_user_ns, attrs->group);
+ inode->i_atime.tv_sec = (time_t) attrs->atime;
+ inode->i_mtime.tv_sec = (time_t) attrs->mtime;
+ inode->i_ctime.tv_sec = (time_t) attrs->ctime;
+ inode->i_atime.tv_nsec = 0;
+ inode->i_mtime.tv_nsec = 0;
+ inode->i_ctime.tv_nsec = 0;
+
+ if (attrs->perms & ORANGEFS_O_EXECUTE)
+ perm_mode |= S_IXOTH;
+ if (attrs->perms & ORANGEFS_O_WRITE)
+ perm_mode |= S_IWOTH;
+ if (attrs->perms & ORANGEFS_O_READ)
+ perm_mode |= S_IROTH;
+
+ if (attrs->perms & ORANGEFS_G_EXECUTE)
+ perm_mode |= S_IXGRP;
+ if (attrs->perms & ORANGEFS_G_WRITE)
+ perm_mode |= S_IWGRP;
+ if (attrs->perms & ORANGEFS_G_READ)
+ perm_mode |= S_IRGRP;
+
+ if (attrs->perms & ORANGEFS_U_EXECUTE)
+ perm_mode |= S_IXUSR;
+ if (attrs->perms & ORANGEFS_U_WRITE)
+ perm_mode |= S_IWUSR;
+ if (attrs->perms & ORANGEFS_U_READ)
+ perm_mode |= S_IRUSR;
+
+ if (attrs->perms & ORANGEFS_G_SGID)
+ perm_mode |= S_ISGID;
+ if (attrs->perms & ORANGEFS_U_SUID)
+ perm_mode |= S_ISUID;
+
+ inode->i_mode = perm_mode;
+
+ if (is_root_handle(inode)) {
+ /* special case: mark the root inode as sticky */
+ inode->i_mode |= S_ISVTX;
+ gossip_debug(GOSSIP_UTILS_DEBUG,
+ "Marking inode %pU as sticky\n",
+ get_khandle_from_ino(inode));
+ }
+
+ switch (attrs->objtype) {
+ case ORANGEFS_TYPE_METAFILE:
+ inode->i_mode |= S_IFREG;
+ ret = 0;
+ break;
+ case ORANGEFS_TYPE_DIRECTORY:
+ inode->i_mode |= S_IFDIR;
+ /* NOTE: we have no good way to keep nlink consistent
+ * for directories across clients; keep constant at 1.
+ * Why 1? If we go with 2, then find(1) gets confused
+ * and won't work properly withouth the -noleaf option
+ */
+ set_nlink(inode, 1);
+ ret = 0;
+ break;
+ case ORANGEFS_TYPE_SYMLINK:
+ inode->i_mode |= S_IFLNK;
+
+ /* copy link target to inode private data */
+ if (orangefs_inode && symname) {
+ strncpy(orangefs_inode->link_target,
+ symname,
+ ORANGEFS_NAME_MAX);
+ gossip_debug(GOSSIP_UTILS_DEBUG,
+ "Copied attr link target %s\n",
+ orangefs_inode->link_target);
+ }
+ gossip_debug(GOSSIP_UTILS_DEBUG,
+ "symlink mode %o\n",
+ inode->i_mode);
+ ret = 0;
+ break;
+ default:
+ gossip_err("orangefs: copy_attributes_to_inode: got invalid attribute type %x\n",
+ attrs->objtype);
+ }
+
+ gossip_debug(GOSSIP_UTILS_DEBUG,
+ "orangefs: copy_attributes_to_inode: setting i_mode to %o, i_size to %lu\n",
+ inode->i_mode,
+ (unsigned long)i_size_read(inode));
+
+ return ret;
+}
+
+/*
+ * NOTE: in kernel land, we never use the sys_attr->link_target for
+ * anything, so don't bother copying it into the sys_attr object here.
+ */
+static inline int copy_attributes_from_inode(struct inode *inode,
+ struct ORANGEFS_sys_attr_s *attrs,
+ struct iattr *iattr)
+{
+ umode_t tmp_mode;
+
+ if (!iattr || !inode || !attrs) {
+ gossip_err("NULL iattr (%p), inode (%p), attrs (%p) "
+ "in copy_attributes_from_inode!\n",
+ iattr,
+ inode,
+ attrs);
+ return -EINVAL;
+ }
+ /*
+ * We need to be careful to only copy the attributes out of the
+ * iattr object that we know are valid.
+ */
+ attrs->mask = 0;
+ if (iattr->ia_valid & ATTR_UID) {
+ attrs->owner = from_kuid(current_user_ns(), iattr->ia_uid);
+ attrs->mask |= ORANGEFS_ATTR_SYS_UID;
+ gossip_debug(GOSSIP_UTILS_DEBUG, "(UID) %d\n", attrs->owner);
+ }
+ if (iattr->ia_valid & ATTR_GID) {
+ attrs->group = from_kgid(current_user_ns(), iattr->ia_gid);
+ attrs->mask |= ORANGEFS_ATTR_SYS_GID;
+ gossip_debug(GOSSIP_UTILS_DEBUG, "(GID) %d\n", attrs->group);
+ }
+
+ if (iattr->ia_valid & ATTR_ATIME) {
+ attrs->mask |= ORANGEFS_ATTR_SYS_ATIME;
+ if (iattr->ia_valid & ATTR_ATIME_SET) {
+ attrs->atime =
+ orangefs_convert_time_field(&iattr->ia_atime);
+ attrs->mask |= ORANGEFS_ATTR_SYS_ATIME_SET;
+ }
+ }
+ if (iattr->ia_valid & ATTR_MTIME) {
+ attrs->mask |= ORANGEFS_ATTR_SYS_MTIME;
+ if (iattr->ia_valid & ATTR_MTIME_SET) {
+ attrs->mtime =
+ orangefs_convert_time_field(&iattr->ia_mtime);
+ attrs->mask |= ORANGEFS_ATTR_SYS_MTIME_SET;
+ }
+ }
+ if (iattr->ia_valid & ATTR_CTIME)
+ attrs->mask |= ORANGEFS_ATTR_SYS_CTIME;
+
+ /*
+ * ORANGEFS cannot set size with a setattr operation. Probably not likely
+ * to be requested through the VFS, but just in case, don't worry about
+ * ATTR_SIZE
+ */
+
+ if (iattr->ia_valid & ATTR_MODE) {
+ tmp_mode = iattr->ia_mode;
+ if (tmp_mode & (S_ISVTX)) {
+ if (is_root_handle(inode)) {
+ /*
+ * allow sticky bit to be set on root (since
+ * it shows up that way by default anyhow),
+ * but don't show it to the server
+ */
+ tmp_mode -= S_ISVTX;
+ } else {
+ gossip_debug(GOSSIP_UTILS_DEBUG,
+ "User attempted to set sticky bit on non-root directory; returning EINVAL.\n");
+ return -EINVAL;
+ }
+ }
+
+ if (tmp_mode & (S_ISUID)) {
+ gossip_debug(GOSSIP_UTILS_DEBUG,
+ "Attempting to set setuid bit (not supported); returning EINVAL.\n");
+ return -EINVAL;
+ }
+
+ attrs->perms = ORANGEFS_util_translate_mode(tmp_mode);
+ attrs->mask |= ORANGEFS_ATTR_SYS_PERM;
+ }
+
+ return 0;
+}
+
+/*
+ * issues a orangefs getattr request and fills in the appropriate inode
+ * attributes if successful. returns 0 on success; -errno otherwise
+ */
+int orangefs_inode_getattr(struct inode *inode, __u32 getattr_mask)
+{
+ struct orangefs_inode_s *orangefs_inode = ORANGEFS_I(inode);
+ struct orangefs_kernel_op_s *new_op;
+ int ret = -EINVAL;
+
+ gossip_debug(GOSSIP_UTILS_DEBUG,
+ "%s: called on inode %pU\n",
+ __func__,
+ get_khandle_from_ino(inode));
+
+ new_op = op_alloc(ORANGEFS_VFS_OP_GETATTR);
+ if (!new_op)
+ return -ENOMEM;
+ new_op->upcall.req.getattr.refn = orangefs_inode->refn;
+ new_op->upcall.req.getattr.mask = getattr_mask;
+
+ ret = service_operation(new_op, __func__,
+ get_interruptible_flag(inode));
+ if (ret != 0)
+ goto out;
+
+ if (copy_attributes_to_inode(inode,
+ &new_op->downcall.resp.getattr.attributes,
+ new_op->downcall.resp.getattr.link_target)) {
+ gossip_err("%s: failed to copy attributes\n", __func__);
+ ret = -ENOENT;
+ goto out;
+ }
+
+ /*
+ * Store blksize in orangefs specific part of inode structure; we are
+ * only going to use this to report to stat to make sure it doesn't
+ * perturb any inode related code paths.
+ */
+ if (new_op->downcall.resp.getattr.attributes.objtype ==
+ ORANGEFS_TYPE_METAFILE) {
+ orangefs_inode->blksize =
+ new_op->downcall.resp.getattr.attributes.blksize;
+ } else {
+ /* mimic behavior of generic_fillattr() for other types. */
+ orangefs_inode->blksize = (1 << inode->i_blkbits);
+
+ }
+
+out:
+ gossip_debug(GOSSIP_UTILS_DEBUG,
+ "Getattr on handle %pU, "
+ "fsid %d\n (inode ct = %d) returned %d\n",
+ &orangefs_inode->refn.khandle,
+ orangefs_inode->refn.fs_id,
+ (int)atomic_read(&inode->i_count),
+ ret);
+
+ op_release(new_op);
+ return ret;
+}
+
+/*
+ * issues a orangefs setattr request to make sure the new attribute values
+ * take effect if successful. returns 0 on success; -errno otherwise
+ */
+int orangefs_inode_setattr(struct inode *inode, struct iattr *iattr)
+{
+ struct orangefs_inode_s *orangefs_inode = ORANGEFS_I(inode);
+ struct orangefs_kernel_op_s *new_op;
+ int ret;
+
+ new_op = op_alloc(ORANGEFS_VFS_OP_SETATTR);
+ if (!new_op)
+ return -ENOMEM;
+
+ new_op->upcall.req.setattr.refn = orangefs_inode->refn;
+ ret = copy_attributes_from_inode(inode,
+ &new_op->upcall.req.setattr.attributes,
+ iattr);
+ if (ret < 0) {
+ op_release(new_op);
+ return ret;
+ }
+
+ ret = service_operation(new_op, __func__,
+ get_interruptible_flag(inode));
+
+ gossip_debug(GOSSIP_UTILS_DEBUG,
+ "orangefs_inode_setattr: returning %d\n",
+ ret);
+
+ /* when request is serviced properly, free req op struct */
+ op_release(new_op);
+
+ /*
+ * successful setattr should clear the atime, mtime and
+ * ctime flags.
+ */
+ if (ret == 0) {
+ ClearAtimeFlag(orangefs_inode);
+ ClearMtimeFlag(orangefs_inode);
+ ClearCtimeFlag(orangefs_inode);
+ ClearModeFlag(orangefs_inode);
+ }
+
+ return ret;
+}
+
+int orangefs_flush_inode(struct inode *inode)
+{
+ /*
+ * If it is a dirty inode, this function gets called.
+ * Gather all the information that needs to be setattr'ed
+ * Right now, this will only be used for mode, atime, mtime
+ * and/or ctime.
+ */
+ struct iattr wbattr;
+ int ret;
+ int mtime_flag;
+ int ctime_flag;
+ int atime_flag;
+ int mode_flag;
+ struct orangefs_inode_s *orangefs_inode = ORANGEFS_I(inode);
+
+ memset(&wbattr, 0, sizeof(wbattr));
+
+ /*
+ * check inode flags up front, and clear them if they are set. This
+ * will prevent multiple processes from all trying to flush the same
+ * inode if they call close() simultaneously
+ */
+ mtime_flag = MtimeFlag(orangefs_inode);
+ ClearMtimeFlag(orangefs_inode);
+ ctime_flag = CtimeFlag(orangefs_inode);
+ ClearCtimeFlag(orangefs_inode);
+ atime_flag = AtimeFlag(orangefs_inode);
+ ClearAtimeFlag(orangefs_inode);
+ mode_flag = ModeFlag(orangefs_inode);
+ ClearModeFlag(orangefs_inode);
+
+ /* -- Lazy atime,mtime and ctime update --
+ * Note: all times are dictated by server in the new scheme
+ * and not by the clients
+ *
+ * Also mode updates are being handled now..
+ */
+
+ if (mtime_flag)
+ wbattr.ia_valid |= ATTR_MTIME;
+ if (ctime_flag)
+ wbattr.ia_valid |= ATTR_CTIME;
+ if (atime_flag)
+ wbattr.ia_valid |= ATTR_ATIME;
+
+ if (mode_flag) {
+ wbattr.ia_mode = inode->i_mode;
+ wbattr.ia_valid |= ATTR_MODE;
+ }
+
+ gossip_debug(GOSSIP_UTILS_DEBUG,
+ "*********** orangefs_flush_inode: %pU "
+ "(ia_valid %d)\n",
+ get_khandle_from_ino(inode),
+ wbattr.ia_valid);
+ if (wbattr.ia_valid == 0) {
+ gossip_debug(GOSSIP_UTILS_DEBUG,
+ "orangefs_flush_inode skipping setattr()\n");
+ return 0;
+ }
+
+ gossip_debug(GOSSIP_UTILS_DEBUG,
+ "orangefs_flush_inode (%pU) writing mode %o\n",
+ get_khandle_from_ino(inode),
+ inode->i_mode);
+
+ ret = orangefs_inode_setattr(inode, &wbattr);
+
+ return ret;
+}
+
+int orangefs_unmount_sb(struct super_block *sb)
+{
+ int ret = -EINVAL;
+ struct orangefs_kernel_op_s *new_op = NULL;
+
+ gossip_debug(GOSSIP_UTILS_DEBUG,
+ "orangefs_unmount_sb called on sb %p\n",
+ sb);
+
+ new_op = op_alloc(ORANGEFS_VFS_OP_FS_UMOUNT);
+ if (!new_op)
+ return -ENOMEM;
+ new_op->upcall.req.fs_umount.id = ORANGEFS_SB(sb)->id;
+ new_op->upcall.req.fs_umount.fs_id = ORANGEFS_SB(sb)->fs_id;
+ strncpy(new_op->upcall.req.fs_umount.orangefs_config_server,
+ ORANGEFS_SB(sb)->devname,
+ ORANGEFS_MAX_SERVER_ADDR_LEN);
+
+ gossip_debug(GOSSIP_UTILS_DEBUG,
+ "Attempting ORANGEFS Unmount via host %s\n",
+ new_op->upcall.req.fs_umount.orangefs_config_server);
+
+ ret = service_operation(new_op, "orangefs_fs_umount", 0);
+
+ gossip_debug(GOSSIP_UTILS_DEBUG,
+ "orangefs_unmount: got return value of %d\n", ret);
+ if (ret)
+ sb = ERR_PTR(ret);
+ else
+ ORANGEFS_SB(sb)->mount_pending = 1;
+
+ op_release(new_op);
+ return ret;
+}
+
+/*
+ * NOTE: on successful cancellation, be sure to return -EINTR, as
+ * that's the return value the caller expects
+ */
+int orangefs_cancel_op_in_progress(__u64 tag)
+{
+ int ret = -EINVAL;
+ struct orangefs_kernel_op_s *new_op = NULL;
+
+ gossip_debug(GOSSIP_UTILS_DEBUG,
+ "orangefs_cancel_op_in_progress called on tag %llu\n",
+ llu(tag));
+
+ new_op = op_alloc(ORANGEFS_VFS_OP_CANCEL);
+ if (!new_op)
+ return -ENOMEM;
+ new_op->upcall.req.cancel.op_tag = tag;
+
+ gossip_debug(GOSSIP_UTILS_DEBUG,
+ "Attempting ORANGEFS operation cancellation of tag %llu\n",
+ llu(new_op->upcall.req.cancel.op_tag));
+
+ ret = service_operation(new_op, "orangefs_cancel", ORANGEFS_OP_CANCELLATION);
+
+ gossip_debug(GOSSIP_UTILS_DEBUG,
+ "orangefs_cancel_op_in_progress: got return value of %d\n",
+ ret);
+
+ op_release(new_op);
+ return ret;
+}
+
+void orangefs_op_initialize(struct orangefs_kernel_op_s *op)
+{
+ if (op) {
+ spin_lock(&op->lock);
+ op->io_completed = 0;
+
+ op->upcall.type = ORANGEFS_VFS_OP_INVALID;
+ op->downcall.type = ORANGEFS_VFS_OP_INVALID;
+ op->downcall.status = -1;
+
+ op->op_state = OP_VFS_STATE_UNKNOWN;
+ op->tag = 0;
+ spin_unlock(&op->lock);
+ }
+}
+
+void orangefs_make_bad_inode(struct inode *inode)
+{
+ if (is_root_handle(inode)) {
+ /*
+ * if this occurs, the pvfs2-client-core was killed but we
+ * can't afford to lose the inode operations and such
+ * associated with the root handle in any case.
+ */
+ gossip_debug(GOSSIP_UTILS_DEBUG,
+ "*** NOT making bad root inode %pU\n",
+ get_khandle_from_ino(inode));
+ } else {
+ gossip_debug(GOSSIP_UTILS_DEBUG,
+ "*** making bad inode %pU\n",
+ get_khandle_from_ino(inode));
+ make_bad_inode(inode);
+ }
+}
+
+/* Block all blockable signals... */
+void block_signals(sigset_t *orig_sigset)
+{
+ sigset_t mask;
+
+ /*
+ * Initialize all entries in the signal set to the
+ * inverse of the given mask.
+ */
+ siginitsetinv(&mask, sigmask(SIGKILL));
+
+ /* Block 'em Danno... */
+ sigprocmask(SIG_BLOCK, &mask, orig_sigset);
+}
+
+/* set the signal mask to the given template... */
+void set_signals(sigset_t *sigset)
+{
+ sigprocmask(SIG_SETMASK, sigset, NULL);
+}
+
+/*
+ * The following is a very dirty hack that is now a permanent part of the
+ * ORANGEFS protocol. See protocol.h for more error definitions.
+ */
+
+/* The order matches include/orangefs-types.h in the OrangeFS source. */
+static int PINT_errno_mapping[] = {
+ 0, EPERM, ENOENT, EINTR, EIO, ENXIO, EBADF, EAGAIN, ENOMEM,
+ EFAULT, EBUSY, EEXIST, ENODEV, ENOTDIR, EISDIR, EINVAL, EMFILE,
+ EFBIG, ENOSPC, EROFS, EMLINK, EPIPE, EDEADLK, ENAMETOOLONG,
+ ENOLCK, ENOSYS, ENOTEMPTY, ELOOP, EWOULDBLOCK, ENOMSG, EUNATCH,
+ EBADR, EDEADLOCK, ENODATA, ETIME, ENONET, EREMOTE, ECOMM,
+ EPROTO, EBADMSG, EOVERFLOW, ERESTART, EMSGSIZE, EPROTOTYPE,
+ ENOPROTOOPT, EPROTONOSUPPORT, EOPNOTSUPP, EADDRINUSE,
+ EADDRNOTAVAIL, ENETDOWN, ENETUNREACH, ENETRESET, ENOBUFS,
+ ETIMEDOUT, ECONNREFUSED, EHOSTDOWN, EHOSTUNREACH, EALREADY,
+ EACCES, ECONNRESET, ERANGE
+};
+
+int orangefs_normalize_to_errno(__s32 error_code)
+{
+ __u32 i;
+
+ /* Success */
+ if (error_code == 0) {
+ return 0;
+ /*
+ * This shouldn't ever happen. If it does it should be fixed on the
+ * server.
+ */
+ } else if (error_code > 0) {
+ gossip_err("orangefs: error status receieved.\n");
+ gossip_err("orangefs: assuming error code is inverted.\n");
+ error_code = -error_code;
+ }
+
+ /*
+ * XXX: This is very bad since error codes from ORANGEFS may not be
+ * suitable for return into userspace.
+ */
+
+ /*
+ * Convert ORANGEFS error values into errno values suitable for return
+ * from the kernel.
+ */
+ if ((-error_code) & ORANGEFS_NON_ERRNO_ERROR_BIT) {
+ if (((-error_code) &
+ (ORANGEFS_ERROR_NUMBER_BITS|ORANGEFS_NON_ERRNO_ERROR_BIT|
+ ORANGEFS_ERROR_BIT)) == ORANGEFS_ECANCEL) {
+ /*
+ * cancellation error codes generally correspond to
+ * a timeout from the client's perspective
+ */
+ error_code = -ETIMEDOUT;
+ } else {
+ /* assume a default error code */
+ gossip_err("orangefs: warning: got error code without errno equivalent: %d.\n", error_code);
+ error_code = -EINVAL;
+ }
+
+ /* Convert ORANGEFS encoded errno values into regular errno values. */
+ } else if ((-error_code) & ORANGEFS_ERROR_BIT) {
+ i = (-error_code) & ~(ORANGEFS_ERROR_BIT|ORANGEFS_ERROR_CLASS_BITS);
+ if (i < sizeof(PINT_errno_mapping)/sizeof(*PINT_errno_mapping))
+ error_code = -PINT_errno_mapping[i];
+ else
+ error_code = -EINVAL;
+
+ /*
+ * Only ORANGEFS protocol error codes should ever come here. Otherwise
+ * there is a bug somewhere.
+ */
+ } else {
+ gossip_err("orangefs: orangefs_normalize_to_errno: got error code which is not from ORANGEFS.\n");
+ }
+ return error_code;
+}
+
+#define NUM_MODES 11
+__s32 ORANGEFS_util_translate_mode(int mode)
+{
+ int ret = 0;
+ int i = 0;
+ static int modes[NUM_MODES] = {
+ S_IXOTH, S_IWOTH, S_IROTH,
+ S_IXGRP, S_IWGRP, S_IRGRP,
+ S_IXUSR, S_IWUSR, S_IRUSR,
+ S_ISGID, S_ISUID
+ };
+ static int orangefs_modes[NUM_MODES] = {
+ ORANGEFS_O_EXECUTE, ORANGEFS_O_WRITE, ORANGEFS_O_READ,
+ ORANGEFS_G_EXECUTE, ORANGEFS_G_WRITE, ORANGEFS_G_READ,
+ ORANGEFS_U_EXECUTE, ORANGEFS_U_WRITE, ORANGEFS_U_READ,
+ ORANGEFS_G_SGID, ORANGEFS_U_SUID
+ };
+
+ for (i = 0; i < NUM_MODES; i++)
+ if (mode & modes[i])
+ ret |= orangefs_modes[i];
+
+ return ret;
+}
+#undef NUM_MODES
+
+/*
+ * After obtaining a string representation of the client's debug
+ * keywords and their associated masks, this function is called to build an
+ * array of these values.
+ */
+int orangefs_prepare_cdm_array(char *debug_array_string)
+{
+ int i;
+ int rc = -EINVAL;
+ char *cds_head = NULL;
+ char *cds_delimiter = NULL;
+ int keyword_len = 0;
+
+ gossip_debug(GOSSIP_UTILS_DEBUG, "%s: start\n", __func__);
+
+ /*
+ * figure out how many elements the cdm_array needs.
+ */
+ for (i = 0; i < strlen(debug_array_string); i++)
+ if (debug_array_string[i] == '\n')
+ cdm_element_count++;
+
+ if (!cdm_element_count) {
+ pr_info("No elements in client debug array string!\n");
+ goto out;
+ }
+
+ cdm_array =
+ kzalloc(cdm_element_count * sizeof(struct client_debug_mask),
+ GFP_KERNEL);
+ if (!cdm_array) {
+ pr_info("malloc failed for cdm_array!\n");
+ rc = -ENOMEM;
+ goto out;
+ }
+
+ cds_head = debug_array_string;
+
+ for (i = 0; i < cdm_element_count; i++) {
+ cds_delimiter = strchr(cds_head, '\n');
+ *cds_delimiter = '\0';
+
+ keyword_len = strcspn(cds_head, " ");
+
+ cdm_array[i].keyword = kzalloc(keyword_len + 1, GFP_KERNEL);
+ if (!cdm_array[i].keyword) {
+ rc = -ENOMEM;
+ goto out;
+ }
+
+ sscanf(cds_head,
+ "%s %llx %llx",
+ cdm_array[i].keyword,
+ (unsigned long long *)&(cdm_array[i].mask1),
+ (unsigned long long *)&(cdm_array[i].mask2));
+
+ if (!strcmp(cdm_array[i].keyword, ORANGEFS_VERBOSE))
+ client_verbose_index = i;
+
+ if (!strcmp(cdm_array[i].keyword, ORANGEFS_ALL))
+ client_all_index = i;
+
+ cds_head = cds_delimiter + 1;
+ }
+
+ rc = cdm_element_count;
+
+ gossip_debug(GOSSIP_UTILS_DEBUG, "%s: rc:%d:\n", __func__, rc);
+
+out:
+
+ return rc;
+
+}
+
+/*
+ * /sys/kernel/debug/orangefs/debug-help can be catted to
+ * see all the available kernel and client debug keywords.
+ *
+ * When the kernel boots, we have no idea what keywords the
+ * client supports, nor their associated masks.
+ *
+ * We pass through this function once at boot and stamp a
+ * boilerplate "we don't know" message for the client in the
+ * debug-help file. We pass through here again when the client
+ * starts and then we can fill out the debug-help file fully.
+ *
+ * The client might be restarted any number of times between
+ * reboots, we only build the debug-help file the first time.
+ */
+int orangefs_prepare_debugfs_help_string(int at_boot)
+{
+ int rc = -EINVAL;
+ int i;
+ int byte_count = 0;
+ char *client_title = "Client Debug Keywords:\n";
+ char *kernel_title = "Kernel Debug Keywords:\n";
+
+ gossip_debug(GOSSIP_UTILS_DEBUG, "%s: start\n", __func__);
+
+ if (at_boot) {
+ byte_count += strlen(HELP_STRING_UNINITIALIZED);
+ client_title = HELP_STRING_UNINITIALIZED;
+ } else {
+ /*
+ * fill the client keyword/mask array and remember
+ * how many elements there were.
+ */
+ cdm_element_count =
+ orangefs_prepare_cdm_array(client_debug_array_string);
+ if (cdm_element_count <= 0)
+ goto out;
+
+ /* Count the bytes destined for debug_help_string. */
+ byte_count += strlen(client_title);
+
+ for (i = 0; i < cdm_element_count; i++) {
+ byte_count += strlen(cdm_array[i].keyword + 2);
+ if (byte_count >= DEBUG_HELP_STRING_SIZE) {
+ pr_info("%s: overflow 1!\n", __func__);
+ goto out;
+ }
+ }
+
+ gossip_debug(GOSSIP_UTILS_DEBUG,
+ "%s: cdm_element_count:%d:\n",
+ __func__,
+ cdm_element_count);
+ }
+
+ byte_count += strlen(kernel_title);
+ for (i = 0; i < num_kmod_keyword_mask_map; i++) {
+ byte_count +=
+ strlen(s_kmod_keyword_mask_map[i].keyword + 2);
+ if (byte_count >= DEBUG_HELP_STRING_SIZE) {
+ pr_info("%s: overflow 2!\n", __func__);
+ goto out;
+ }
+ }
+
+ /* build debug_help_string. */
+ debug_help_string = kzalloc(DEBUG_HELP_STRING_SIZE, GFP_KERNEL);
+ if (!debug_help_string) {
+ rc = -ENOMEM;
+ goto out;
+ }
+
+ strcat(debug_help_string, client_title);
+
+ if (!at_boot) {
+ for (i = 0; i < cdm_element_count; i++) {
+ strcat(debug_help_string, "\t");
+ strcat(debug_help_string, cdm_array[i].keyword);
+ strcat(debug_help_string, "\n");
+ }
+ }
+
+ strcat(debug_help_string, "\n");
+ strcat(debug_help_string, kernel_title);
+
+ for (i = 0; i < num_kmod_keyword_mask_map; i++) {
+ strcat(debug_help_string, "\t");
+ strcat(debug_help_string, s_kmod_keyword_mask_map[i].keyword);
+ strcat(debug_help_string, "\n");
+ }
+
+ rc = 0;
+
+out:
+
+ return rc;
+
+}
+
+/*
+ * kernel = type 0
+ * client = type 1
+ */
+void debug_mask_to_string(void *mask, int type)
+{
+ int i;
+ int len = 0;
+ char *debug_string;
+ int element_count = 0;
+
+ gossip_debug(GOSSIP_UTILS_DEBUG, "%s: start\n", __func__);
+
+ if (type) {
+ debug_string = client_debug_string;
+ element_count = cdm_element_count;
+ } else {
+ debug_string = kernel_debug_string;
+ element_count = num_kmod_keyword_mask_map;
+ }
+
+ memset(debug_string, 0, ORANGEFS_MAX_DEBUG_STRING_LEN);
+
+ /*
+ * Some keywords, like "all" or "verbose", are amalgams of
+ * numerous other keywords. Make a special check for those
+ * before grinding through the whole mask only to find out
+ * later...
+ */
+ if (check_amalgam_keyword(mask, type))
+ goto out;
+
+ /* Build the debug string. */
+ for (i = 0; i < element_count; i++)
+ if (type)
+ do_c_string(mask, i);
+ else
+ do_k_string(mask, i);
+
+ len = strlen(debug_string);
+
+ if ((len) && (type))
+ client_debug_string[len - 1] = '\0';
+ else if (len)
+ kernel_debug_string[len - 1] = '\0';
+ else if (type)
+ strcpy(client_debug_string, "none");
+ else
+ strcpy(kernel_debug_string, "none");
+
+out:
+gossip_debug(GOSSIP_UTILS_DEBUG, "%s: string:%s:\n", __func__, debug_string);
+
+ return;
+
+}
+
+void do_k_string(void *k_mask, int index)
+{
+ __u64 *mask = (__u64 *) k_mask;
+
+ if (keyword_is_amalgam((char *) s_kmod_keyword_mask_map[index].keyword))
+ goto out;
+
+ if (*mask & s_kmod_keyword_mask_map[index].mask_val) {
+ if ((strlen(kernel_debug_string) +
+ strlen(s_kmod_keyword_mask_map[index].keyword))
+ < ORANGEFS_MAX_DEBUG_STRING_LEN - 1) {
+ strcat(kernel_debug_string,
+ s_kmod_keyword_mask_map[index].keyword);
+ strcat(kernel_debug_string, ",");
+ } else {
+ gossip_err("%s: overflow!\n", __func__);
+ strcpy(kernel_debug_string, ORANGEFS_ALL);
+ goto out;
+ }
+ }
+
+out:
+
+ return;
+}
+
+void do_c_string(void *c_mask, int index)
+{
+ struct client_debug_mask *mask = (struct client_debug_mask *) c_mask;
+
+ if (keyword_is_amalgam(cdm_array[index].keyword))
+ goto out;
+
+ if ((mask->mask1 & cdm_array[index].mask1) ||
+ (mask->mask2 & cdm_array[index].mask2)) {
+ if ((strlen(client_debug_string) +
+ strlen(cdm_array[index].keyword) + 1)
+ < ORANGEFS_MAX_DEBUG_STRING_LEN - 2) {
+ strcat(client_debug_string,
+ cdm_array[index].keyword);
+ strcat(client_debug_string, ",");
+ } else {
+ gossip_err("%s: overflow!\n", __func__);
+ strcpy(client_debug_string, ORANGEFS_ALL);
+ goto out;
+ }
+ }
+out:
+ return;
+}
+
+int keyword_is_amalgam(char *keyword)
+{
+ int rc = 0;
+
+ if ((!strcmp(keyword, ORANGEFS_ALL)) || (!strcmp(keyword, ORANGEFS_VERBOSE)))
+ rc = 1;
+
+ return rc;
+}
+
+/*
+ * kernel = type 0
+ * client = type 1
+ *
+ * return 1 if we found an amalgam.
+ */
+int check_amalgam_keyword(void *mask, int type)
+{
+ __u64 *k_mask;
+ struct client_debug_mask *c_mask;
+ int k_all_index = num_kmod_keyword_mask_map - 1;
+ int rc = 0;
+
+ if (type) {
+ c_mask = (struct client_debug_mask *) mask;
+
+ if ((c_mask->mask1 == cdm_array[client_all_index].mask1) &&
+ (c_mask->mask2 == cdm_array[client_all_index].mask2)) {
+ strcpy(client_debug_string, ORANGEFS_ALL);
+ rc = 1;
+ goto out;
+ }
+
+ if ((c_mask->mask1 == cdm_array[client_verbose_index].mask1) &&
+ (c_mask->mask2 == cdm_array[client_verbose_index].mask2)) {
+ strcpy(client_debug_string, ORANGEFS_VERBOSE);
+ rc = 1;
+ goto out;
+ }
+
+ } else {
+ k_mask = (__u64 *) mask;
+
+ if (*k_mask >= s_kmod_keyword_mask_map[k_all_index].mask_val) {
+ strcpy(kernel_debug_string, ORANGEFS_ALL);
+ rc = 1;
+ goto out;
+ }
+ }
+
+out:
+
+ return rc;
+}
+
+/*
+ * kernel = type 0
+ * client = type 1
+ */
+void debug_string_to_mask(char *debug_string, void *mask, int type)
+{
+ char *unchecked_keyword;
+ int i;
+ char *strsep_fodder = kstrdup(debug_string, GFP_KERNEL);
+ char *original_pointer;
+ int element_count = 0;
+ struct client_debug_mask *c_mask;
+ __u64 *k_mask;
+
+ gossip_debug(GOSSIP_UTILS_DEBUG, "%s: start\n", __func__);
+
+ if (type) {
+ c_mask = (struct client_debug_mask *)mask;
+ element_count = cdm_element_count;
+ } else {
+ k_mask = (__u64 *)mask;
+ *k_mask = 0;
+ element_count = num_kmod_keyword_mask_map;
+ }
+
+ original_pointer = strsep_fodder;
+ while ((unchecked_keyword = strsep(&strsep_fodder, ",")))
+ if (strlen(unchecked_keyword)) {
+ for (i = 0; i < element_count; i++)
+ if (type)
+ do_c_mask(i,
+ unchecked_keyword,
+ &c_mask);
+ else
+ do_k_mask(i,
+ unchecked_keyword,
+ &k_mask);
+ }
+
+ kfree(original_pointer);
+}
+
+void do_c_mask(int i,
+ char *unchecked_keyword,
+ struct client_debug_mask **sane_mask)
+{
+
+ if (!strcmp(cdm_array[i].keyword, unchecked_keyword)) {
+ (**sane_mask).mask1 = (**sane_mask).mask1 | cdm_array[i].mask1;
+ (**sane_mask).mask2 = (**sane_mask).mask2 | cdm_array[i].mask2;
+ }
+}
+
+void do_k_mask(int i, char *unchecked_keyword, __u64 **sane_mask)
+{
+
+ if (!strcmp(s_kmod_keyword_mask_map[i].keyword, unchecked_keyword))
+ **sane_mask = (**sane_mask) |
+ s_kmod_keyword_mask_map[i].mask_val;
+}
/* Bits 6 - 0 are reserved for the actual error code. */
#define ORANGEFS_ERROR_NUMBER_BITS 0x7f
-/* Encoded errno values are decoded by PINT_errno_mapping in pvfs2-utils.c. */
+/* Encoded errno values decoded by PINT_errno_mapping in orangefs-utils.c. */
/* Our own ORANGEFS protocol error codes. */
#define ORANGEFS_ECANCEL (1|ORANGEFS_NON_ERRNO_ERROR_BIT|ORANGEFS_ERROR_BIT)
__s32 ORANGEFS_util_translate_mode(int mode);
/* pvfs2-debug.h ************************************************************/
-#include "pvfs2-debug.h"
+#include "orangefs-debug.h"
/* pvfs2-internal.h *********************************************************/
#define llu(x) (unsigned long long)(x)
/*
* describes memory regions to map in the ORANGEFS_DEV_MAP ioctl.
- * NOTE: See devpvfs2-req.c for 32 bit compat structure.
+ * NOTE: See devorangefs-req.c for 32 bit compat structure.
* Since this structure has a variable-sized layout that is different
* on 32 and 64 bit platforms, we need to normalize to a 64 bit layout
* on such systems before servicing ioctl calls from user-space binaries
+++ /dev/null
-/*
- * (C) 2001 Clemson University and The University of Chicago
- *
- * See COPYING in top-level directory.
- */
-#include "protocol.h"
-#include "pvfs2-kernel.h"
-#include "pvfs2-bufmap.h"
-
-DECLARE_WAIT_QUEUE_HEAD(orangefs_bufmap_init_waitq);
-
-static struct orangefs_bufmap {
- atomic_t refcnt;
-
- int desc_size;
- int desc_shift;
- int desc_count;
- int total_size;
- int page_count;
-
- struct page **page_array;
- struct orangefs_bufmap_desc *desc_array;
-
- /* array to track usage of buffer descriptors */
- int *buffer_index_array;
- spinlock_t buffer_index_lock;
-
- /* array to track usage of buffer descriptors for readdir */
- int readdir_index_array[ORANGEFS_READDIR_DEFAULT_DESC_COUNT];
- spinlock_t readdir_index_lock;
-} *__orangefs_bufmap;
-
-static DEFINE_SPINLOCK(orangefs_bufmap_lock);
-
-static void
-orangefs_bufmap_unmap(struct orangefs_bufmap *bufmap)
-{
- int i;
-
- for (i = 0; i < bufmap->page_count; i++)
- page_cache_release(bufmap->page_array[i]);
-}
-
-static void
-orangefs_bufmap_free(struct orangefs_bufmap *bufmap)
-{
- kfree(bufmap->page_array);
- kfree(bufmap->desc_array);
- kfree(bufmap->buffer_index_array);
- kfree(bufmap);
-}
-
-struct orangefs_bufmap *orangefs_bufmap_ref(void)
-{
- struct orangefs_bufmap *bufmap = NULL;
-
- spin_lock(&orangefs_bufmap_lock);
- if (__orangefs_bufmap) {
- bufmap = __orangefs_bufmap;
- atomic_inc(&bufmap->refcnt);
- }
- spin_unlock(&orangefs_bufmap_lock);
- return bufmap;
-}
-
-void orangefs_bufmap_unref(struct orangefs_bufmap *bufmap)
-{
- if (atomic_dec_and_lock(&bufmap->refcnt, &orangefs_bufmap_lock)) {
- __orangefs_bufmap = NULL;
- spin_unlock(&orangefs_bufmap_lock);
-
- orangefs_bufmap_unmap(bufmap);
- orangefs_bufmap_free(bufmap);
- }
-}
-
-inline int orangefs_bufmap_size_query(void)
-{
- struct orangefs_bufmap *bufmap = orangefs_bufmap_ref();
- int size = bufmap ? bufmap->desc_size : 0;
-
- orangefs_bufmap_unref(bufmap);
- return size;
-}
-
-inline int orangefs_bufmap_shift_query(void)
-{
- struct orangefs_bufmap *bufmap = orangefs_bufmap_ref();
- int shift = bufmap ? bufmap->desc_shift : 0;
-
- orangefs_bufmap_unref(bufmap);
- return shift;
-}
-
-static DECLARE_WAIT_QUEUE_HEAD(bufmap_waitq);
-static DECLARE_WAIT_QUEUE_HEAD(readdir_waitq);
-
-/*
- * get_bufmap_init
- *
- * If bufmap_init is 1, then the shared memory system, including the
- * buffer_index_array, is available. Otherwise, it is not.
- *
- * returns the value of bufmap_init
- */
-int get_bufmap_init(void)
-{
- return __orangefs_bufmap ? 1 : 0;
-}
-
-
-static struct orangefs_bufmap *
-orangefs_bufmap_alloc(struct ORANGEFS_dev_map_desc *user_desc)
-{
- struct orangefs_bufmap *bufmap;
-
- bufmap = kzalloc(sizeof(*bufmap), GFP_KERNEL);
- if (!bufmap)
- goto out;
-
- atomic_set(&bufmap->refcnt, 1);
- bufmap->total_size = user_desc->total_size;
- bufmap->desc_count = user_desc->count;
- bufmap->desc_size = user_desc->size;
- bufmap->desc_shift = ilog2(bufmap->desc_size);
-
- spin_lock_init(&bufmap->buffer_index_lock);
- bufmap->buffer_index_array =
- kcalloc(bufmap->desc_count, sizeof(int), GFP_KERNEL);
- if (!bufmap->buffer_index_array) {
- gossip_err("orangefs: could not allocate %d buffer indices\n",
- bufmap->desc_count);
- goto out_free_bufmap;
- }
- spin_lock_init(&bufmap->readdir_index_lock);
-
- bufmap->desc_array =
- kcalloc(bufmap->desc_count, sizeof(struct orangefs_bufmap_desc),
- GFP_KERNEL);
- if (!bufmap->desc_array) {
- gossip_err("orangefs: could not allocate %d descriptors\n",
- bufmap->desc_count);
- goto out_free_index_array;
- }
-
- bufmap->page_count = bufmap->total_size / PAGE_SIZE;
-
- /* allocate storage to track our page mappings */
- bufmap->page_array =
- kcalloc(bufmap->page_count, sizeof(struct page *), GFP_KERNEL);
- if (!bufmap->page_array)
- goto out_free_desc_array;
-
- return bufmap;
-
-out_free_desc_array:
- kfree(bufmap->desc_array);
-out_free_index_array:
- kfree(bufmap->buffer_index_array);
-out_free_bufmap:
- kfree(bufmap);
-out:
- return NULL;
-}
-
-static int
-orangefs_bufmap_map(struct orangefs_bufmap *bufmap,
- struct ORANGEFS_dev_map_desc *user_desc)
-{
- int pages_per_desc = bufmap->desc_size / PAGE_SIZE;
- int offset = 0, ret, i;
-
- /* map the pages */
- ret = get_user_pages_fast((unsigned long)user_desc->ptr,
- bufmap->page_count, 1, bufmap->page_array);
-
- if (ret < 0)
- return ret;
-
- if (ret != bufmap->page_count) {
- gossip_err("orangefs error: asked for %d pages, only got %d.\n",
- bufmap->page_count, ret);
-
- for (i = 0; i < ret; i++) {
- SetPageError(bufmap->page_array[i]);
- page_cache_release(bufmap->page_array[i]);
- }
- return -ENOMEM;
- }
-
- /*
- * ideally we want to get kernel space pointers for each page, but
- * we can't kmap that many pages at once if highmem is being used.
- * so instead, we just kmap/kunmap the page address each time the
- * kaddr is needed.
- */
- for (i = 0; i < bufmap->page_count; i++)
- flush_dcache_page(bufmap->page_array[i]);
-
- /* build a list of available descriptors */
- for (offset = 0, i = 0; i < bufmap->desc_count; i++) {
- bufmap->desc_array[i].page_array = &bufmap->page_array[offset];
- bufmap->desc_array[i].array_count = pages_per_desc;
- bufmap->desc_array[i].uaddr =
- (user_desc->ptr + (i * pages_per_desc * PAGE_SIZE));
- offset += pages_per_desc;
- }
-
- return 0;
-}
-
-/*
- * orangefs_bufmap_initialize()
- *
- * initializes the mapped buffer interface
- *
- * returns 0 on success, -errno on failure
- */
-int orangefs_bufmap_initialize(struct ORANGEFS_dev_map_desc *user_desc)
-{
- struct orangefs_bufmap *bufmap;
- int ret = -EINVAL;
-
- gossip_debug(GOSSIP_BUFMAP_DEBUG,
- "orangefs_bufmap_initialize: called (ptr ("
- "%p) sz (%d) cnt(%d).\n",
- user_desc->ptr,
- user_desc->size,
- user_desc->count);
-
- /*
- * sanity check alignment and size of buffer that caller wants to
- * work with
- */
- if (PAGE_ALIGN((unsigned long)user_desc->ptr) !=
- (unsigned long)user_desc->ptr) {
- gossip_err("orangefs error: memory alignment (front). %p\n",
- user_desc->ptr);
- goto out;
- }
-
- if (PAGE_ALIGN(((unsigned long)user_desc->ptr + user_desc->total_size))
- != (unsigned long)(user_desc->ptr + user_desc->total_size)) {
- gossip_err("orangefs error: memory alignment (back).(%p + %d)\n",
- user_desc->ptr,
- user_desc->total_size);
- goto out;
- }
-
- if (user_desc->total_size != (user_desc->size * user_desc->count)) {
- gossip_err("orangefs error: user provided an oddly sized buffer: (%d, %d, %d)\n",
- user_desc->total_size,
- user_desc->size,
- user_desc->count);
- goto out;
- }
-
- if ((user_desc->size % PAGE_SIZE) != 0) {
- gossip_err("orangefs error: bufmap size not page size divisible (%d).\n",
- user_desc->size);
- goto out;
- }
-
- ret = -ENOMEM;
- bufmap = orangefs_bufmap_alloc(user_desc);
- if (!bufmap)
- goto out;
-
- ret = orangefs_bufmap_map(bufmap, user_desc);
- if (ret)
- goto out_free_bufmap;
-
-
- spin_lock(&orangefs_bufmap_lock);
- if (__orangefs_bufmap) {
- spin_unlock(&orangefs_bufmap_lock);
- gossip_err("orangefs: error: bufmap already initialized.\n");
- ret = -EALREADY;
- goto out_unmap_bufmap;
- }
- __orangefs_bufmap = bufmap;
- spin_unlock(&orangefs_bufmap_lock);
-
- /*
- * If there are operations in orangefs_bufmap_init_waitq, wake them up.
- * This scenario occurs when the client-core is restarted and I/O
- * requests in the in-progress or waiting tables are restarted. I/O
- * requests cannot be restarted until the shared memory system is
- * completely re-initialized, so we put the I/O requests in this
- * waitq until initialization has completed. NOTE: the I/O requests
- * are also on a timer, so they don't wait forever just in case the
- * client-core doesn't come back up.
- */
- wake_up_interruptible(&orangefs_bufmap_init_waitq);
-
- gossip_debug(GOSSIP_BUFMAP_DEBUG,
- "orangefs_bufmap_initialize: exiting normally\n");
- return 0;
-
-out_unmap_bufmap:
- orangefs_bufmap_unmap(bufmap);
-out_free_bufmap:
- orangefs_bufmap_free(bufmap);
-out:
- return ret;
-}
-
-/*
- * orangefs_bufmap_finalize()
- *
- * shuts down the mapped buffer interface and releases any resources
- * associated with it
- *
- * no return value
- */
-void orangefs_bufmap_finalize(void)
-{
- gossip_debug(GOSSIP_BUFMAP_DEBUG, "orangefs_bufmap_finalize: called\n");
- BUG_ON(!__orangefs_bufmap);
- orangefs_bufmap_unref(__orangefs_bufmap);
- gossip_debug(GOSSIP_BUFMAP_DEBUG,
- "orangefs_bufmap_finalize: exiting normally\n");
-}
-
-struct slot_args {
- int slot_count;
- int *slot_array;
- spinlock_t *slot_lock;
- wait_queue_head_t *slot_wq;
-};
-
-static int wait_for_a_slot(struct slot_args *slargs, int *buffer_index)
-{
- int ret = -1;
- int i = 0;
- DECLARE_WAITQUEUE(my_wait, current);
-
-
- add_wait_queue_exclusive(slargs->slot_wq, &my_wait);
-
- while (1) {
- set_current_state(TASK_INTERRUPTIBLE);
-
- /*
- * check for available desc, slot_lock is the appropriate
- * index_lock
- */
- spin_lock(slargs->slot_lock);
- for (i = 0; i < slargs->slot_count; i++)
- if (slargs->slot_array[i] == 0) {
- slargs->slot_array[i] = 1;
- *buffer_index = i;
- ret = 0;
- break;
- }
- spin_unlock(slargs->slot_lock);
-
- /* if we acquired a buffer, then break out of while */
- if (ret == 0)
- break;
-
- if (!signal_pending(current)) {
- int timeout =
- MSECS_TO_JIFFIES(1000 * slot_timeout_secs);
- gossip_debug(GOSSIP_BUFMAP_DEBUG,
- "[BUFMAP]: waiting %d "
- "seconds for a slot\n",
- slot_timeout_secs);
- if (!schedule_timeout(timeout)) {
- gossip_debug(GOSSIP_BUFMAP_DEBUG,
- "*** wait_for_a_slot timed out\n");
- ret = -ETIMEDOUT;
- break;
- }
- gossip_debug(GOSSIP_BUFMAP_DEBUG,
- "[BUFMAP]: woken up by a slot becoming available.\n");
- continue;
- }
-
- gossip_debug(GOSSIP_BUFMAP_DEBUG, "orangefs: %s interrupted.\n",
- __func__);
- ret = -EINTR;
- break;
- }
-
- set_current_state(TASK_RUNNING);
- remove_wait_queue(slargs->slot_wq, &my_wait);
- return ret;
-}
-
-static void put_back_slot(struct slot_args *slargs, int buffer_index)
-{
- /* slot_lock is the appropriate index_lock */
- spin_lock(slargs->slot_lock);
- if (buffer_index < 0 || buffer_index >= slargs->slot_count) {
- spin_unlock(slargs->slot_lock);
- return;
- }
-
- /* put the desc back on the queue */
- slargs->slot_array[buffer_index] = 0;
- spin_unlock(slargs->slot_lock);
-
- /* wake up anyone who may be sleeping on the queue */
- wake_up_interruptible(slargs->slot_wq);
-}
-
-/*
- * orangefs_bufmap_get()
- *
- * gets a free mapped buffer descriptor, will sleep until one becomes
- * available if necessary
- *
- * returns 0 on success, -errno on failure
- */
-int orangefs_bufmap_get(struct orangefs_bufmap **mapp, int *buffer_index)
-{
- struct orangefs_bufmap *bufmap = orangefs_bufmap_ref();
- struct slot_args slargs;
- int ret;
-
- if (!bufmap) {
- gossip_err("orangefs: please confirm that pvfs2-client daemon is running.\n");
- return -EIO;
- }
-
- slargs.slot_count = bufmap->desc_count;
- slargs.slot_array = bufmap->buffer_index_array;
- slargs.slot_lock = &bufmap->buffer_index_lock;
- slargs.slot_wq = &bufmap_waitq;
- ret = wait_for_a_slot(&slargs, buffer_index);
- if (ret)
- orangefs_bufmap_unref(bufmap);
- *mapp = bufmap;
- return ret;
-}
-
-/*
- * orangefs_bufmap_put()
- *
- * returns a mapped buffer descriptor to the collection
- *
- * no return value
- */
-void orangefs_bufmap_put(struct orangefs_bufmap *bufmap, int buffer_index)
-{
- struct slot_args slargs;
-
- slargs.slot_count = bufmap->desc_count;
- slargs.slot_array = bufmap->buffer_index_array;
- slargs.slot_lock = &bufmap->buffer_index_lock;
- slargs.slot_wq = &bufmap_waitq;
- put_back_slot(&slargs, buffer_index);
- orangefs_bufmap_unref(bufmap);
-}
-
-/*
- * readdir_index_get()
- *
- * gets a free descriptor, will sleep until one becomes
- * available if necessary.
- * Although the readdir buffers are not mapped into kernel space
- * we could do that at a later point of time. Regardless, these
- * indices are used by the client-core.
- *
- * returns 0 on success, -errno on failure
- */
-int readdir_index_get(struct orangefs_bufmap **mapp, int *buffer_index)
-{
- struct orangefs_bufmap *bufmap = orangefs_bufmap_ref();
- struct slot_args slargs;
- int ret;
-
- if (!bufmap) {
- gossip_err("orangefs: please confirm that pvfs2-client daemon is running.\n");
- return -EIO;
- }
-
- slargs.slot_count = ORANGEFS_READDIR_DEFAULT_DESC_COUNT;
- slargs.slot_array = bufmap->readdir_index_array;
- slargs.slot_lock = &bufmap->readdir_index_lock;
- slargs.slot_wq = &readdir_waitq;
- ret = wait_for_a_slot(&slargs, buffer_index);
- if (ret)
- orangefs_bufmap_unref(bufmap);
- *mapp = bufmap;
- return ret;
-}
-
-void readdir_index_put(struct orangefs_bufmap *bufmap, int buffer_index)
-{
- struct slot_args slargs;
-
- slargs.slot_count = ORANGEFS_READDIR_DEFAULT_DESC_COUNT;
- slargs.slot_array = bufmap->readdir_index_array;
- slargs.slot_lock = &bufmap->readdir_index_lock;
- slargs.slot_wq = &readdir_waitq;
- put_back_slot(&slargs, buffer_index);
- orangefs_bufmap_unref(bufmap);
-}
-
-int orangefs_bufmap_copy_from_iovec(struct orangefs_bufmap *bufmap,
- struct iov_iter *iter,
- int buffer_index,
- size_t size)
-{
- struct orangefs_bufmap_desc *to = &bufmap->desc_array[buffer_index];
- int i;
-
- gossip_debug(GOSSIP_BUFMAP_DEBUG,
- "%s: buffer_index:%d: size:%zu:\n",
- __func__, buffer_index, size);
-
-
- for (i = 0; size; i++) {
- struct page *page = to->page_array[i];
- size_t n = size;
- if (n > PAGE_SIZE)
- n = PAGE_SIZE;
- n = copy_page_from_iter(page, 0, n, iter);
- if (!n)
- return -EFAULT;
- size -= n;
- }
- return 0;
-
-}
-
-/*
- * Iterate through the array of pages containing the bytes from
- * a file being read.
- *
- */
-int orangefs_bufmap_copy_to_iovec(struct orangefs_bufmap *bufmap,
- struct iov_iter *iter,
- int buffer_index,
- size_t size)
-{
- struct orangefs_bufmap_desc *from = &bufmap->desc_array[buffer_index];
- int i;
-
- gossip_debug(GOSSIP_BUFMAP_DEBUG,
- "%s: buffer_index:%d: size:%zu:\n",
- __func__, buffer_index, size);
-
-
- for (i = 0; size; i++) {
- struct page *page = from->page_array[i];
- size_t n = size;
- if (n > PAGE_SIZE)
- n = PAGE_SIZE;
- n = copy_page_to_iter(page, 0, n, iter);
- if (!n)
- return -EFAULT;
- size -= n;
- }
- return 0;
-}
+++ /dev/null
-/*
- * (C) 2001 Clemson University and The University of Chicago
- *
- * See COPYING in top-level directory.
- */
-
-#ifndef __ORANGEFS_BUFMAP_H
-#define __ORANGEFS_BUFMAP_H
-
-/* used to describe mapped buffers */
-struct orangefs_bufmap_desc {
- void *uaddr; /* user space address pointer */
- struct page **page_array; /* array of mapped pages */
- int array_count; /* size of above arrays */
- struct list_head list_link;
-};
-
-struct orangefs_bufmap;
-
-struct orangefs_bufmap *orangefs_bufmap_ref(void);
-void orangefs_bufmap_unref(struct orangefs_bufmap *bufmap);
-
-/*
- * orangefs_bufmap_size_query is now an inline function because buffer
- * sizes are not hardcoded
- */
-int orangefs_bufmap_size_query(void);
-
-int orangefs_bufmap_shift_query(void);
-
-int orangefs_bufmap_initialize(struct ORANGEFS_dev_map_desc *user_desc);
-
-int get_bufmap_init(void);
-
-void orangefs_bufmap_finalize(void);
-
-int orangefs_bufmap_get(struct orangefs_bufmap **mapp, int *buffer_index);
-
-void orangefs_bufmap_put(struct orangefs_bufmap *bufmap, int buffer_index);
-
-int readdir_index_get(struct orangefs_bufmap **mapp, int *buffer_index);
-
-void readdir_index_put(struct orangefs_bufmap *bufmap, int buffer_index);
-
-int orangefs_bufmap_copy_from_iovec(struct orangefs_bufmap *bufmap,
- struct iov_iter *iter,
- int buffer_index,
- size_t size);
-
-int orangefs_bufmap_copy_to_iovec(struct orangefs_bufmap *bufmap,
- struct iov_iter *iter,
- int buffer_index,
- size_t size);
-
-size_t orangefs_bufmap_copy_to_user_task_iovec(struct task_struct *tsk,
- struct iovec *iovec,
- unsigned long nr_segs,
- struct orangefs_bufmap *bufmap,
- int buffer_index,
- size_t bytes_to_be_copied);
-
-#endif /* __ORANGEFS_BUFMAP_H */
+++ /dev/null
-/*
- * (C) 2001 Clemson University and The University of Chicago
- *
- * See COPYING in top-level directory.
- */
-
-#include "protocol.h"
-#include "pvfs2-kernel.h"
-
-/* tags assigned to kernel upcall operations */
-static __u64 next_tag_value;
-static DEFINE_SPINLOCK(next_tag_value_lock);
-
-/* the orangefs memory caches */
-
-/* a cache for orangefs upcall/downcall operations */
-static struct kmem_cache *op_cache;
-
-/* a cache for device (/dev/pvfs2-req) communication */
-static struct kmem_cache *dev_req_cache;
-
-/* a cache for orangefs_kiocb objects (i.e orangefs iocb structures ) */
-static struct kmem_cache *orangefs_kiocb_cache;
-
-int op_cache_initialize(void)
-{
- op_cache = kmem_cache_create("orangefs_op_cache",
- sizeof(struct orangefs_kernel_op_s),
- 0,
- ORANGEFS_CACHE_CREATE_FLAGS,
- NULL);
-
- if (!op_cache) {
- gossip_err("Cannot create orangefs_op_cache\n");
- return -ENOMEM;
- }
-
- /* initialize our atomic tag counter */
- spin_lock(&next_tag_value_lock);
- next_tag_value = 100;
- spin_unlock(&next_tag_value_lock);
- return 0;
-}
-
-int op_cache_finalize(void)
-{
- kmem_cache_destroy(op_cache);
- return 0;
-}
-
-char *get_opname_string(struct orangefs_kernel_op_s *new_op)
-{
- if (new_op) {
- __s32 type = new_op->upcall.type;
-
- if (type == ORANGEFS_VFS_OP_FILE_IO)
- return "OP_FILE_IO";
- else if (type == ORANGEFS_VFS_OP_LOOKUP)
- return "OP_LOOKUP";
- else if (type == ORANGEFS_VFS_OP_CREATE)
- return "OP_CREATE";
- else if (type == ORANGEFS_VFS_OP_GETATTR)
- return "OP_GETATTR";
- else if (type == ORANGEFS_VFS_OP_REMOVE)
- return "OP_REMOVE";
- else if (type == ORANGEFS_VFS_OP_MKDIR)
- return "OP_MKDIR";
- else if (type == ORANGEFS_VFS_OP_READDIR)
- return "OP_READDIR";
- else if (type == ORANGEFS_VFS_OP_READDIRPLUS)
- return "OP_READDIRPLUS";
- else if (type == ORANGEFS_VFS_OP_SETATTR)
- return "OP_SETATTR";
- else if (type == ORANGEFS_VFS_OP_SYMLINK)
- return "OP_SYMLINK";
- else if (type == ORANGEFS_VFS_OP_RENAME)
- return "OP_RENAME";
- else if (type == ORANGEFS_VFS_OP_STATFS)
- return "OP_STATFS";
- else if (type == ORANGEFS_VFS_OP_TRUNCATE)
- return "OP_TRUNCATE";
- else if (type == ORANGEFS_VFS_OP_MMAP_RA_FLUSH)
- return "OP_MMAP_RA_FLUSH";
- else if (type == ORANGEFS_VFS_OP_FS_MOUNT)
- return "OP_FS_MOUNT";
- else if (type == ORANGEFS_VFS_OP_FS_UMOUNT)
- return "OP_FS_UMOUNT";
- else if (type == ORANGEFS_VFS_OP_GETXATTR)
- return "OP_GETXATTR";
- else if (type == ORANGEFS_VFS_OP_SETXATTR)
- return "OP_SETXATTR";
- else if (type == ORANGEFS_VFS_OP_LISTXATTR)
- return "OP_LISTXATTR";
- else if (type == ORANGEFS_VFS_OP_REMOVEXATTR)
- return "OP_REMOVEXATTR";
- else if (type == ORANGEFS_VFS_OP_PARAM)
- return "OP_PARAM";
- else if (type == ORANGEFS_VFS_OP_PERF_COUNT)
- return "OP_PERF_COUNT";
- else if (type == ORANGEFS_VFS_OP_CANCEL)
- return "OP_CANCEL";
- else if (type == ORANGEFS_VFS_OP_FSYNC)
- return "OP_FSYNC";
- else if (type == ORANGEFS_VFS_OP_FSKEY)
- return "OP_FSKEY";
- }
- return "OP_UNKNOWN?";
-}
-
-struct orangefs_kernel_op_s *op_alloc(__s32 type)
-{
- struct orangefs_kernel_op_s *new_op = NULL;
-
- new_op = kmem_cache_alloc(op_cache, ORANGEFS_CACHE_ALLOC_FLAGS);
- if (new_op) {
- memset(new_op, 0, sizeof(struct orangefs_kernel_op_s));
-
- INIT_LIST_HEAD(&new_op->list);
- spin_lock_init(&new_op->lock);
- init_waitqueue_head(&new_op->waitq);
-
- init_waitqueue_head(&new_op->io_completion_waitq);
- atomic_set(&new_op->aio_ref_count, 0);
-
- orangefs_op_initialize(new_op);
-
- /* initialize the op specific tag and upcall credentials */
- spin_lock(&next_tag_value_lock);
- new_op->tag = next_tag_value++;
- if (next_tag_value == 0)
- next_tag_value = 100;
- spin_unlock(&next_tag_value_lock);
- new_op->upcall.type = type;
- new_op->attempts = 0;
- gossip_debug(GOSSIP_CACHE_DEBUG,
- "Alloced OP (%p: %llu %s)\n",
- new_op,
- llu(new_op->tag),
- get_opname_string(new_op));
-
- new_op->upcall.uid = from_kuid(current_user_ns(),
- current_fsuid());
-
- new_op->upcall.gid = from_kgid(current_user_ns(),
- current_fsgid());
- } else {
- gossip_err("op_alloc: kmem_cache_alloc failed!\n");
- }
- return new_op;
-}
-
-void op_release(struct orangefs_kernel_op_s *orangefs_op)
-{
- if (orangefs_op) {
- gossip_debug(GOSSIP_CACHE_DEBUG,
- "Releasing OP (%p: %llu)\n",
- orangefs_op,
- llu(orangefs_op->tag));
- orangefs_op_initialize(orangefs_op);
- kmem_cache_free(op_cache, orangefs_op);
- } else {
- gossip_err("NULL pointer in op_release\n");
- }
-}
-
-int dev_req_cache_initialize(void)
-{
- dev_req_cache = kmem_cache_create("orangefs_devreqcache",
- MAX_ALIGNED_DEV_REQ_DOWNSIZE,
- 0,
- ORANGEFS_CACHE_CREATE_FLAGS,
- NULL);
-
- if (!dev_req_cache) {
- gossip_err("Cannot create orangefs_dev_req_cache\n");
- return -ENOMEM;
- }
- return 0;
-}
-
-int dev_req_cache_finalize(void)
-{
- kmem_cache_destroy(dev_req_cache);
- return 0;
-}
-
-void *dev_req_alloc(void)
-{
- void *buffer;
-
- buffer = kmem_cache_alloc(dev_req_cache, ORANGEFS_CACHE_ALLOC_FLAGS);
- if (buffer == NULL)
- gossip_err("Failed to allocate from dev_req_cache\n");
- else
- memset(buffer, 0, sizeof(MAX_ALIGNED_DEV_REQ_DOWNSIZE));
- return buffer;
-}
-
-void dev_req_release(void *buffer)
-{
- if (buffer)
- kmem_cache_free(dev_req_cache, buffer);
- else
- gossip_err("NULL pointer passed to dev_req_release\n");
-}
-
-int kiocb_cache_initialize(void)
-{
- orangefs_kiocb_cache = kmem_cache_create("orangefs_kiocbcache",
- sizeof(struct orangefs_kiocb_s),
- 0,
- ORANGEFS_CACHE_CREATE_FLAGS,
- NULL);
-
- if (!orangefs_kiocb_cache) {
- gossip_err("Cannot create orangefs_kiocb_cache!\n");
- return -ENOMEM;
- }
- return 0;
-}
-
-int kiocb_cache_finalize(void)
-{
- kmem_cache_destroy(orangefs_kiocb_cache);
- return 0;
-}
-
-struct orangefs_kiocb_s *kiocb_alloc(void)
-{
- struct orangefs_kiocb_s *x = NULL;
-
- x = kmem_cache_alloc(orangefs_kiocb_cache, ORANGEFS_CACHE_ALLOC_FLAGS);
- if (x == NULL)
- gossip_err("kiocb_alloc: kmem_cache_alloc failed!\n");
- else
- memset(x, 0, sizeof(struct orangefs_kiocb_s));
- return x;
-}
-
-void kiocb_release(struct orangefs_kiocb_s *x)
-{
- if (x)
- kmem_cache_free(orangefs_kiocb_cache, x);
- else
- gossip_err("kiocb_release: kmem_cache_free NULL pointer!\n");
-}
+++ /dev/null
-/*
- * (C) 2001 Clemson University and The University of Chicago
- *
- * See COPYING in top-level directory.
- */
-
-/* This file just defines debugging masks to be used with the gossip
- * logging utility. All debugging masks for ORANGEFS are kept here to make
- * sure we don't have collisions.
- */
-
-#ifndef __ORANGEFS_DEBUG_H
-#define __ORANGEFS_DEBUG_H
-
-#ifdef __KERNEL__
-#include <linux/types.h>
-#else
-#include <stdint.h>
-#endif
-
-#define GOSSIP_NO_DEBUG (__u64)0
-#define GOSSIP_BMI_DEBUG_TCP ((__u64)1 << 0)
-#define GOSSIP_BMI_DEBUG_CONTROL ((__u64)1 << 1)
-#define GOSSIP_BMI_DEBUG_OFFSETS ((__u64)1 << 2)
-#define GOSSIP_BMI_DEBUG_GM ((__u64)1 << 3)
-#define GOSSIP_JOB_DEBUG ((__u64)1 << 4)
-#define GOSSIP_SERVER_DEBUG ((__u64)1 << 5)
-#define GOSSIP_STO_DEBUG_CTRL ((__u64)1 << 6)
-#define GOSSIP_STO_DEBUG_DEFAULT ((__u64)1 << 7)
-#define GOSSIP_FLOW_DEBUG ((__u64)1 << 8)
-#define GOSSIP_BMI_DEBUG_GM_MEM ((__u64)1 << 9)
-#define GOSSIP_REQUEST_DEBUG ((__u64)1 << 10)
-#define GOSSIP_FLOW_PROTO_DEBUG ((__u64)1 << 11)
-#define GOSSIP_NCACHE_DEBUG ((__u64)1 << 12)
-#define GOSSIP_CLIENT_DEBUG ((__u64)1 << 13)
-#define GOSSIP_REQ_SCHED_DEBUG ((__u64)1 << 14)
-#define GOSSIP_ACACHE_DEBUG ((__u64)1 << 15)
-#define GOSSIP_TROVE_DEBUG ((__u64)1 << 16)
-#define GOSSIP_TROVE_OP_DEBUG ((__u64)1 << 17)
-#define GOSSIP_DIST_DEBUG ((__u64)1 << 18)
-#define GOSSIP_BMI_DEBUG_IB ((__u64)1 << 19)
-#define GOSSIP_DBPF_ATTRCACHE_DEBUG ((__u64)1 << 20)
-#define GOSSIP_MMAP_RCACHE_DEBUG ((__u64)1 << 21)
-#define GOSSIP_LOOKUP_DEBUG ((__u64)1 << 22)
-#define GOSSIP_REMOVE_DEBUG ((__u64)1 << 23)
-#define GOSSIP_GETATTR_DEBUG ((__u64)1 << 24)
-#define GOSSIP_READDIR_DEBUG ((__u64)1 << 25)
-#define GOSSIP_IO_DEBUG ((__u64)1 << 26)
-#define GOSSIP_DBPF_OPEN_CACHE_DEBUG ((__u64)1 << 27)
-#define GOSSIP_PERMISSIONS_DEBUG ((__u64)1 << 28)
-#define GOSSIP_CANCEL_DEBUG ((__u64)1 << 29)
-#define GOSSIP_MSGPAIR_DEBUG ((__u64)1 << 30)
-#define GOSSIP_CLIENTCORE_DEBUG ((__u64)1 << 31)
-#define GOSSIP_CLIENTCORE_TIMING_DEBUG ((__u64)1 << 32)
-#define GOSSIP_SETATTR_DEBUG ((__u64)1 << 33)
-#define GOSSIP_MKDIR_DEBUG ((__u64)1 << 34)
-#define GOSSIP_VARSTRIP_DEBUG ((__u64)1 << 35)
-#define GOSSIP_GETEATTR_DEBUG ((__u64)1 << 36)
-#define GOSSIP_SETEATTR_DEBUG ((__u64)1 << 37)
-#define GOSSIP_ENDECODE_DEBUG ((__u64)1 << 38)
-#define GOSSIP_DELEATTR_DEBUG ((__u64)1 << 39)
-#define GOSSIP_ACCESS_DEBUG ((__u64)1 << 40)
-#define GOSSIP_ACCESS_DETAIL_DEBUG ((__u64)1 << 41)
-#define GOSSIP_LISTEATTR_DEBUG ((__u64)1 << 42)
-#define GOSSIP_PERFCOUNTER_DEBUG ((__u64)1 << 43)
-#define GOSSIP_STATE_MACHINE_DEBUG ((__u64)1 << 44)
-#define GOSSIP_DBPF_KEYVAL_DEBUG ((__u64)1 << 45)
-#define GOSSIP_LISTATTR_DEBUG ((__u64)1 << 46)
-#define GOSSIP_DBPF_COALESCE_DEBUG ((__u64)1 << 47)
-#define GOSSIP_ACCESS_HOSTNAMES ((__u64)1 << 48)
-#define GOSSIP_FSCK_DEBUG ((__u64)1 << 49)
-#define GOSSIP_BMI_DEBUG_MX ((__u64)1 << 50)
-#define GOSSIP_BSTREAM_DEBUG ((__u64)1 << 51)
-#define GOSSIP_BMI_DEBUG_PORTALS ((__u64)1 << 52)
-#define GOSSIP_USER_DEV_DEBUG ((__u64)1 << 53)
-#define GOSSIP_DIRECTIO_DEBUG ((__u64)1 << 54)
-#define GOSSIP_MGMT_DEBUG ((__u64)1 << 55)
-#define GOSSIP_MIRROR_DEBUG ((__u64)1 << 56)
-#define GOSSIP_WIN_CLIENT_DEBUG ((__u64)1 << 57)
-#define GOSSIP_SECURITY_DEBUG ((__u64)1 << 58)
-#define GOSSIP_USRINT_DEBUG ((__u64)1 << 59)
-#define GOSSIP_RCACHE_DEBUG ((__u64)1 << 60)
-#define GOSSIP_SECCACHE_DEBUG ((__u64)1 << 61)
-
-#define GOSSIP_BMI_DEBUG_ALL ((__u64) (GOSSIP_BMI_DEBUG_TCP + \
- GOSSIP_BMI_DEBUG_CONTROL + \
- GOSSIP_BMI_DEBUG_GM + \
- GOSSIP_BMI_DEBUG_OFFSETS + \
- GOSSIP_BMI_DEBUG_IB + \
- GOSSIP_BMI_DEBUG_MX + \
- GOSSIP_BMI_DEBUG_PORTALS))
-
-const char *ORANGEFS_debug_get_next_debug_keyword(int position);
-
-#define GOSSIP_SUPER_DEBUG ((__u64)1 << 0)
-#define GOSSIP_INODE_DEBUG ((__u64)1 << 1)
-#define GOSSIP_FILE_DEBUG ((__u64)1 << 2)
-#define GOSSIP_DIR_DEBUG ((__u64)1 << 3)
-#define GOSSIP_UTILS_DEBUG ((__u64)1 << 4)
-#define GOSSIP_WAIT_DEBUG ((__u64)1 << 5)
-#define GOSSIP_ACL_DEBUG ((__u64)1 << 6)
-#define GOSSIP_DCACHE_DEBUG ((__u64)1 << 7)
-#define GOSSIP_DEV_DEBUG ((__u64)1 << 8)
-#define GOSSIP_NAME_DEBUG ((__u64)1 << 9)
-#define GOSSIP_BUFMAP_DEBUG ((__u64)1 << 10)
-#define GOSSIP_CACHE_DEBUG ((__u64)1 << 11)
-#define GOSSIP_DEBUGFS_DEBUG ((__u64)1 << 12)
-#define GOSSIP_XATTR_DEBUG ((__u64)1 << 13)
-#define GOSSIP_INIT_DEBUG ((__u64)1 << 14)
-#define GOSSIP_SYSFS_DEBUG ((__u64)1 << 15)
-
-#define GOSSIP_MAX_NR 16
-#define GOSSIP_MAX_DEBUG (((__u64)1 << GOSSIP_MAX_NR) - 1)
-
-/*function prototypes*/
-__u64 ORANGEFS_kmod_eventlog_to_mask(const char *event_logging);
-__u64 ORANGEFS_debug_eventlog_to_mask(const char *event_logging);
-char *ORANGEFS_debug_mask_to_eventlog(__u64 mask);
-char *ORANGEFS_kmod_mask_to_eventlog(__u64 mask);
-
-/* a private internal type */
-struct __keyword_mask_s {
- const char *keyword;
- __u64 mask_val;
-};
-
-#define __DEBUG_ALL ((__u64) -1)
-
-/* map all config keywords to pvfs2 debug masks here */
-static struct __keyword_mask_s s_keyword_mask_map[] = {
- /* Log trove debugging info. Same as 'trove'. */
- {"storage", GOSSIP_TROVE_DEBUG},
- /* Log trove debugging info. Same as 'storage'. */
- {"trove", GOSSIP_TROVE_DEBUG},
- /* Log trove operations. */
- {"trove_op", GOSSIP_TROVE_OP_DEBUG},
- /* Log network debug info. */
- {"network", GOSSIP_BMI_DEBUG_ALL},
- /* Log server info, including new operations. */
- {"server", GOSSIP_SERVER_DEBUG},
- /* Log client sysint info. This is only useful for the client. */
- {"client", GOSSIP_CLIENT_DEBUG},
- /* Debug the varstrip distribution */
- {"varstrip", GOSSIP_VARSTRIP_DEBUG},
- /* Log job info */
- {"job", GOSSIP_JOB_DEBUG},
- /* Debug PINT_process_request calls. EXTREMELY verbose! */
- {"request", GOSSIP_REQUEST_DEBUG},
- /* Log request scheduler events */
- {"reqsched", GOSSIP_REQ_SCHED_DEBUG},
- /* Log the flow protocol events, including flowproto_multiqueue */
- {"flowproto", GOSSIP_FLOW_PROTO_DEBUG},
- /* Log flow calls */
- {"flow", GOSSIP_FLOW_DEBUG},
- /* Debug the client name cache. Only useful on the client. */
- {"ncache", GOSSIP_NCACHE_DEBUG},
- /* Debug read-ahead cache events. Only useful on the client. */
- {"mmaprcache", GOSSIP_MMAP_RCACHE_DEBUG},
- /* Debug the attribute cache. Only useful on the client. */
- {"acache", GOSSIP_ACACHE_DEBUG},
- /* Log/Debug distribution calls */
- {"distribution", GOSSIP_DIST_DEBUG},
- /* Debug the server-side dbpf attribute cache */
- {"dbpfattrcache", GOSSIP_DBPF_ATTRCACHE_DEBUG},
- /* Debug the client lookup state machine. */
- {"lookup", GOSSIP_LOOKUP_DEBUG},
- /* Debug the client remove state macine. */
- {"remove", GOSSIP_REMOVE_DEBUG},
- /* Debug the server getattr state machine. */
- {"getattr", GOSSIP_GETATTR_DEBUG},
- /* Debug the server setattr state machine. */
- {"setattr", GOSSIP_SETATTR_DEBUG},
- /* vectored getattr server state machine */
- {"listattr", GOSSIP_LISTATTR_DEBUG},
- /* Debug the client and server get ext attributes SM. */
- {"geteattr", GOSSIP_GETEATTR_DEBUG},
- /* Debug the client and server set ext attributes SM. */
- {"seteattr", GOSSIP_SETEATTR_DEBUG},
- /* Debug the readdir operation (client and server) */
- {"readdir", GOSSIP_READDIR_DEBUG},
- /* Debug the mkdir operation (server only) */
- {"mkdir", GOSSIP_MKDIR_DEBUG},
- /*
- * Debug the io operation (reads and writes)
- * for both the client and server.
- */
- {"io", GOSSIP_IO_DEBUG},
- /* Debug the server's open file descriptor cache */
- {"open_cache", GOSSIP_DBPF_OPEN_CACHE_DEBUG},
- /* Debug permissions checking on the server */
- {"permissions", GOSSIP_PERMISSIONS_DEBUG},
- /* Debug the cancel operation */
- {"cancel", GOSSIP_CANCEL_DEBUG},
- /* Debug the msgpair state machine */
- {"msgpair", GOSSIP_MSGPAIR_DEBUG},
- /* Debug the client core app */
- {"clientcore", GOSSIP_CLIENTCORE_DEBUG},
- /* Debug the client timing state machines (job timeout, etc.) */
- {"clientcore_timing", GOSSIP_CLIENTCORE_TIMING_DEBUG},
- /* network encoding */
- {"endecode", GOSSIP_ENDECODE_DEBUG},
- /* Show server file (metadata) accesses (both modify and read-only). */
- {"access", GOSSIP_ACCESS_DEBUG},
- /* Show more detailed server file accesses */
- {"access_detail", GOSSIP_ACCESS_DETAIL_DEBUG},
- /* Debug the listeattr operation */
- {"listeattr", GOSSIP_LISTEATTR_DEBUG},
- /* Debug the state machine management code */
- {"sm", GOSSIP_STATE_MACHINE_DEBUG},
- /* Debug the metadata dbpf keyval functions */
- {"keyval", GOSSIP_DBPF_KEYVAL_DEBUG},
- /* Debug the metadata sync coalescing code */
- {"coalesce", GOSSIP_DBPF_COALESCE_DEBUG},
- /* Display the hostnames instead of IP addrs in debug output */
- {"access_hostnames", GOSSIP_ACCESS_HOSTNAMES},
- /* Show the client device events */
- {"user_dev", GOSSIP_USER_DEV_DEBUG},
- /* Debug the fsck tool */
- {"fsck", GOSSIP_FSCK_DEBUG},
- /* Debug the bstream code */
- {"bstream", GOSSIP_BSTREAM_DEBUG},
- /* Debug trove in direct io mode */
- {"directio", GOSSIP_DIRECTIO_DEBUG},
- /* Debug direct io thread management */
- {"mgmt", GOSSIP_MGMT_DEBUG},
- /* Debug mirroring process */
- {"mirror", GOSSIP_MIRROR_DEBUG},
- /* Windows client */
- {"win_client", GOSSIP_WIN_CLIENT_DEBUG},
- /* Debug robust security code */
- {"security", GOSSIP_SECURITY_DEBUG},
- /* Capability Cache */
- {"seccache", GOSSIP_SECCACHE_DEBUG},
- /* Client User Interface */
- {"usrint", GOSSIP_USRINT_DEBUG},
- /* rcache */
- {"rcache", GOSSIP_RCACHE_DEBUG},
- /* Everything except the periodic events. Useful for debugging */
- {"verbose",
- (__DEBUG_ALL &
- ~(GOSSIP_PERFCOUNTER_DEBUG | GOSSIP_STATE_MACHINE_DEBUG |
- GOSSIP_ENDECODE_DEBUG | GOSSIP_USER_DEV_DEBUG))
- },
- /* No debug output */
- {"none", GOSSIP_NO_DEBUG},
- /* Everything */
- {"all", __DEBUG_ALL}
-};
-
-#undef __DEBUG_ALL
-
-/*
- * Map all kmod keywords to kmod debug masks here. Keep this
- * structure "packed":
- *
- * "all" is always last...
- *
- * keyword mask_val index
- * foo 1 0
- * bar 2 1
- * baz 4 2
- * qux 8 3
- * . . .
- */
-static struct __keyword_mask_s s_kmod_keyword_mask_map[] = {
- {"super", GOSSIP_SUPER_DEBUG},
- {"inode", GOSSIP_INODE_DEBUG},
- {"file", GOSSIP_FILE_DEBUG},
- {"dir", GOSSIP_DIR_DEBUG},
- {"utils", GOSSIP_UTILS_DEBUG},
- {"wait", GOSSIP_WAIT_DEBUG},
- {"acl", GOSSIP_ACL_DEBUG},
- {"dcache", GOSSIP_DCACHE_DEBUG},
- {"dev", GOSSIP_DEV_DEBUG},
- {"name", GOSSIP_NAME_DEBUG},
- {"bufmap", GOSSIP_BUFMAP_DEBUG},
- {"cache", GOSSIP_CACHE_DEBUG},
- {"debugfs", GOSSIP_DEBUGFS_DEBUG},
- {"xattr", GOSSIP_XATTR_DEBUG},
- {"init", GOSSIP_INIT_DEBUG},
- {"sysfs", GOSSIP_SYSFS_DEBUG},
- {"none", GOSSIP_NO_DEBUG},
- {"all", GOSSIP_MAX_DEBUG}
-};
-
-static const int num_kmod_keyword_mask_map = (int)
- (sizeof(s_kmod_keyword_mask_map) / sizeof(struct __keyword_mask_s));
-
-static const int num_keyword_mask_map = (int)
- (sizeof(s_keyword_mask_map) / sizeof(struct __keyword_mask_s));
-
-#endif /* __ORANGEFS_DEBUG_H */
+++ /dev/null
-/*
- * What: /sys/kernel/debug/orangefs/debug-help
- * Date: June 2015
- * Contact: Mike Marshall <hubcap@omnibond.com>
- * Description:
- * List of client and kernel debug keywords.
- *
- *
- * What: /sys/kernel/debug/orangefs/client-debug
- * Date: June 2015
- * Contact: Mike Marshall <hubcap@omnibond.com>
- * Description:
- * Debug setting for "the client", the userspace
- * helper for the kernel module.
- *
- *
- * What: /sys/kernel/debug/orangefs/kernel-debug
- * Date: June 2015
- * Contact: Mike Marshall <hubcap@omnibond.com>
- * Description:
- * Debug setting for the orangefs kernel module.
- *
- * Any of the keywords, or comma-separated lists
- * of keywords, from debug-help can be catted to
- * client-debug or kernel-debug.
- *
- * "none", "all" and "verbose" are special keywords
- * for client-debug. Setting client-debug to "all"
- * is kind of like trying to drink water from a
- * fire hose, "verbose" triggers most of the same
- * output except for the constant flow of output
- * from the main wait loop.
- *
- * "none" and "all" are similar settings for kernel-debug
- * no need for a "verbose".
- */
-#include <linux/debugfs.h>
-#include <linux/slab.h>
-
-#include <linux/uaccess.h>
-
-#include "pvfs2-debugfs.h"
-#include "protocol.h"
-#include "pvfs2-kernel.h"
-
-static int orangefs_debug_disabled = 1;
-
-static int orangefs_debug_help_open(struct inode *, struct file *);
-
-const struct file_operations debug_help_fops = {
- .open = orangefs_debug_help_open,
- .read = seq_read,
- .release = seq_release,
- .llseek = seq_lseek,
-};
-
-static void *help_start(struct seq_file *, loff_t *);
-static void *help_next(struct seq_file *, void *, loff_t *);
-static void help_stop(struct seq_file *, void *);
-static int help_show(struct seq_file *, void *);
-
-static const struct seq_operations help_debug_ops = {
- .start = help_start,
- .next = help_next,
- .stop = help_stop,
- .show = help_show,
-};
-
-/*
- * Used to protect data in ORANGEFS_KMOD_DEBUG_FILE and
- * ORANGEFS_KMOD_DEBUG_FILE.
- */
-static DEFINE_MUTEX(orangefs_debug_lock);
-
-int orangefs_debug_open(struct inode *, struct file *);
-
-static ssize_t orangefs_debug_read(struct file *,
- char __user *,
- size_t,
- loff_t *);
-
-static ssize_t orangefs_debug_write(struct file *,
- const char __user *,
- size_t,
- loff_t *);
-
-static const struct file_operations kernel_debug_fops = {
- .open = orangefs_debug_open,
- .read = orangefs_debug_read,
- .write = orangefs_debug_write,
- .llseek = generic_file_llseek,
-};
-
-/*
- * initialize kmod debug operations, create orangefs debugfs dir and
- * ORANGEFS_KMOD_DEBUG_HELP_FILE.
- */
-int orangefs_debugfs_init(void)
-{
-
- int rc = -ENOMEM;
-
- debug_dir = debugfs_create_dir("orangefs", NULL);
- if (!debug_dir)
- goto out;
-
- help_file_dentry = debugfs_create_file(ORANGEFS_KMOD_DEBUG_HELP_FILE,
- 0444,
- debug_dir,
- debug_help_string,
- &debug_help_fops);
- if (!help_file_dentry)
- goto out;
-
- orangefs_debug_disabled = 0;
- rc = 0;
-
-out:
- if (rc)
- orangefs_debugfs_cleanup();
-
- return rc;
-}
-
-void orangefs_debugfs_cleanup(void)
-{
- debugfs_remove_recursive(debug_dir);
-}
-
-/* open ORANGEFS_KMOD_DEBUG_HELP_FILE */
-static int orangefs_debug_help_open(struct inode *inode, struct file *file)
-{
- int rc = -ENODEV;
- int ret;
-
- gossip_debug(GOSSIP_DEBUGFS_DEBUG,
- "orangefs_debug_help_open: start\n");
-
- if (orangefs_debug_disabled)
- goto out;
-
- ret = seq_open(file, &help_debug_ops);
- if (ret)
- goto out;
-
- ((struct seq_file *)(file->private_data))->private = inode->i_private;
-
- rc = 0;
-
-out:
- gossip_debug(GOSSIP_DEBUGFS_DEBUG,
- "orangefs_debug_help_open: rc:%d:\n",
- rc);
- return rc;
-}
-
-/*
- * I think start always gets called again after stop. Start
- * needs to return NULL when it is done. The whole "payload"
- * in this case is a single (long) string, so by the second
- * time we get to start (pos = 1), we're done.
- */
-static void *help_start(struct seq_file *m, loff_t *pos)
-{
- void *payload = NULL;
-
- gossip_debug(GOSSIP_DEBUGFS_DEBUG, "help_start: start\n");
-
- if (*pos == 0)
- payload = m->private;
-
- return payload;
-}
-
-static void *help_next(struct seq_file *m, void *v, loff_t *pos)
-{
- gossip_debug(GOSSIP_DEBUGFS_DEBUG, "help_next: start\n");
-
- return NULL;
-}
-
-static void help_stop(struct seq_file *m, void *p)
-{
- gossip_debug(GOSSIP_DEBUGFS_DEBUG, "help_stop: start\n");
-}
-
-static int help_show(struct seq_file *m, void *v)
-{
- gossip_debug(GOSSIP_DEBUGFS_DEBUG, "help_show: start\n");
-
- seq_puts(m, v);
-
- return 0;
-}
-
-/*
- * initialize the kernel-debug file.
- */
-int orangefs_kernel_debug_init(void)
-{
-
- int rc = -ENOMEM;
- struct dentry *ret;
- char *k_buffer = NULL;
-
- gossip_debug(GOSSIP_DEBUGFS_DEBUG, "%s: start\n", __func__);
-
- k_buffer = kzalloc(ORANGEFS_MAX_DEBUG_STRING_LEN, GFP_KERNEL);
- if (!k_buffer)
- goto out;
-
- if (strlen(kernel_debug_string) + 1 < ORANGEFS_MAX_DEBUG_STRING_LEN) {
- strcpy(k_buffer, kernel_debug_string);
- strcat(k_buffer, "\n");
- } else {
- strcpy(k_buffer, "none\n");
- pr_info("%s: overflow 1!\n", __func__);
- }
-
- ret = debugfs_create_file(ORANGEFS_KMOD_DEBUG_FILE,
- 0444,
- debug_dir,
- k_buffer,
- &kernel_debug_fops);
- if (!ret) {
- pr_info("%s: failed to create %s.\n",
- __func__,
- ORANGEFS_KMOD_DEBUG_FILE);
- goto out;
- }
-
- rc = 0;
-
-out:
- if (rc)
- orangefs_debugfs_cleanup();
-
- gossip_debug(GOSSIP_DEBUGFS_DEBUG, "%s: rc:%d:\n", __func__, rc);
- return rc;
-}
-
-/*
- * initialize the client-debug file.
- */
-int orangefs_client_debug_init(void)
-{
-
- int rc = -ENOMEM;
- char *c_buffer = NULL;
-
- gossip_debug(GOSSIP_DEBUGFS_DEBUG, "%s: start\n", __func__);
-
- c_buffer = kzalloc(ORANGEFS_MAX_DEBUG_STRING_LEN, GFP_KERNEL);
- if (!c_buffer)
- goto out;
-
- if (strlen(client_debug_string) + 1 < ORANGEFS_MAX_DEBUG_STRING_LEN) {
- strcpy(c_buffer, client_debug_string);
- strcat(c_buffer, "\n");
- } else {
- strcpy(c_buffer, "none\n");
- pr_info("%s: overflow! 2\n", __func__);
- }
-
- client_debug_dentry = debugfs_create_file(ORANGEFS_CLIENT_DEBUG_FILE,
- 0444,
- debug_dir,
- c_buffer,
- &kernel_debug_fops);
- if (!client_debug_dentry) {
- pr_info("%s: failed to create %s.\n",
- __func__,
- ORANGEFS_CLIENT_DEBUG_FILE);
- goto out;
- }
-
- rc = 0;
-
-out:
- if (rc)
- orangefs_debugfs_cleanup();
-
- gossip_debug(GOSSIP_DEBUGFS_DEBUG, "%s: rc:%d:\n", __func__, rc);
- return rc;
-}
-
-/* open ORANGEFS_KMOD_DEBUG_FILE or ORANGEFS_CLIENT_DEBUG_FILE.*/
-int orangefs_debug_open(struct inode *inode, struct file *file)
-{
- int rc = -ENODEV;
-
- gossip_debug(GOSSIP_DEBUGFS_DEBUG,
- "%s: orangefs_debug_disabled: %d\n",
- __func__,
- orangefs_debug_disabled);
-
- if (orangefs_debug_disabled)
- goto out;
-
- rc = 0;
- mutex_lock(&orangefs_debug_lock);
- file->private_data = inode->i_private;
- mutex_unlock(&orangefs_debug_lock);
-
-out:
- gossip_debug(GOSSIP_DEBUGFS_DEBUG,
- "orangefs_debug_open: rc: %d\n",
- rc);
- return rc;
-}
-
-static ssize_t orangefs_debug_read(struct file *file,
- char __user *ubuf,
- size_t count,
- loff_t *ppos)
-{
- char *buf;
- int sprintf_ret;
- ssize_t read_ret = -ENOMEM;
-
- gossip_debug(GOSSIP_DEBUGFS_DEBUG, "orangefs_debug_read: start\n");
-
- buf = kmalloc(ORANGEFS_MAX_DEBUG_STRING_LEN, GFP_KERNEL);
- if (!buf)
- goto out;
-
- mutex_lock(&orangefs_debug_lock);
- sprintf_ret = sprintf(buf, "%s", (char *)file->private_data);
- mutex_unlock(&orangefs_debug_lock);
-
- read_ret = simple_read_from_buffer(ubuf, count, ppos, buf, sprintf_ret);
-
- kfree(buf);
-
-out:
- gossip_debug(GOSSIP_DEBUGFS_DEBUG,
- "orangefs_debug_read: ret: %zu\n",
- read_ret);
-
- return read_ret;
-}
-
-static ssize_t orangefs_debug_write(struct file *file,
- const char __user *ubuf,
- size_t count,
- loff_t *ppos)
-{
- char *buf;
- int rc = -EFAULT;
- size_t silly = 0;
- char *debug_string;
- struct orangefs_kernel_op_s *new_op = NULL;
- struct client_debug_mask c_mask = { NULL, 0, 0 };
-
- gossip_debug(GOSSIP_DEBUGFS_DEBUG,
- "orangefs_debug_write: %s\n",
- file->f_path.dentry->d_name.name);
-
- /*
- * Thwart users who try to jamb a ridiculous number
- * of bytes into the debug file...
- */
- if (count > ORANGEFS_MAX_DEBUG_STRING_LEN + 1) {
- silly = count;
- count = ORANGEFS_MAX_DEBUG_STRING_LEN + 1;
- }
-
- buf = kmalloc(ORANGEFS_MAX_DEBUG_STRING_LEN, GFP_KERNEL);
- if (!buf)
- goto out;
- memset(buf, 0, ORANGEFS_MAX_DEBUG_STRING_LEN);
-
- if (copy_from_user(buf, ubuf, count - 1)) {
- gossip_debug(GOSSIP_DEBUGFS_DEBUG,
- "%s: copy_from_user failed!\n",
- __func__);
- goto out;
- }
-
- /*
- * Map the keyword string from userspace into a valid debug mask.
- * The mapping process involves mapping the human-inputted string
- * into a valid mask, and then rebuilding the string from the
- * verified valid mask.
- *
- * A service operation is required to set a new client-side
- * debug mask.
- */
- if (!strcmp(file->f_path.dentry->d_name.name,
- ORANGEFS_KMOD_DEBUG_FILE)) {
- debug_string_to_mask(buf, &gossip_debug_mask, 0);
- debug_mask_to_string(&gossip_debug_mask, 0);
- debug_string = kernel_debug_string;
- gossip_debug(GOSSIP_DEBUGFS_DEBUG,
- "New kernel debug string is %s\n",
- kernel_debug_string);
- } else {
- /* Can't reset client debug mask if client is not running. */
- if (is_daemon_in_service()) {
- pr_info("%s: Client not running :%d:\n",
- __func__,
- is_daemon_in_service());
- goto out;
- }
-
- debug_string_to_mask(buf, &c_mask, 1);
- debug_mask_to_string(&c_mask, 1);
- debug_string = client_debug_string;
-
- new_op = op_alloc(ORANGEFS_VFS_OP_PARAM);
- if (!new_op) {
- pr_info("%s: op_alloc failed!\n", __func__);
- goto out;
- }
-
- new_op->upcall.req.param.op =
- ORANGEFS_PARAM_REQUEST_OP_TWO_MASK_VALUES;
- new_op->upcall.req.param.type = ORANGEFS_PARAM_REQUEST_SET;
- memset(new_op->upcall.req.param.s_value,
- 0,
- ORANGEFS_MAX_DEBUG_STRING_LEN);
- sprintf(new_op->upcall.req.param.s_value,
- "%llx %llx\n",
- c_mask.mask1,
- c_mask.mask2);
-
- /* service_operation returns 0 on success... */
- rc = service_operation(new_op,
- "orangefs_param",
- ORANGEFS_OP_INTERRUPTIBLE);
-
- if (rc)
- gossip_debug(GOSSIP_DEBUGFS_DEBUG,
- "%s: service_operation failed! rc:%d:\n",
- __func__,
- rc);
-
- op_release(new_op);
- }
-
- mutex_lock(&orangefs_debug_lock);
- memset(file->f_inode->i_private, 0, ORANGEFS_MAX_DEBUG_STRING_LEN);
- sprintf((char *)file->f_inode->i_private, "%s\n", debug_string);
- mutex_unlock(&orangefs_debug_lock);
-
- *ppos += count;
- if (silly)
- rc = silly;
- else
- rc = count;
-
-out:
- gossip_debug(GOSSIP_DEBUGFS_DEBUG,
- "orangefs_debug_write: rc: %d\n",
- rc);
- kfree(buf);
- return rc;
-}
+++ /dev/null
-int orangefs_debugfs_init(void);
-int orangefs_kernel_debug_init(void);
-void orangefs_debugfs_cleanup(void);
+++ /dev/null
-/*
- * (C) 2001 Clemson University and The University of Chicago
- *
- * See COPYING in top-level directory.
- */
-
-#ifndef _ORANGEFS_DEV_PROTO_H
-#define _ORANGEFS_DEV_PROTO_H
-
-/*
- * types and constants shared between user space and kernel space for
- * device interaction using a common protocol
- */
-
-/*
- * valid orangefs kernel operation types
- */
-#define ORANGEFS_VFS_OP_INVALID 0xFF000000
-#define ORANGEFS_VFS_OP_FILE_IO 0xFF000001
-#define ORANGEFS_VFS_OP_LOOKUP 0xFF000002
-#define ORANGEFS_VFS_OP_CREATE 0xFF000003
-#define ORANGEFS_VFS_OP_GETATTR 0xFF000004
-#define ORANGEFS_VFS_OP_REMOVE 0xFF000005
-#define ORANGEFS_VFS_OP_MKDIR 0xFF000006
-#define ORANGEFS_VFS_OP_READDIR 0xFF000007
-#define ORANGEFS_VFS_OP_SETATTR 0xFF000008
-#define ORANGEFS_VFS_OP_SYMLINK 0xFF000009
-#define ORANGEFS_VFS_OP_RENAME 0xFF00000A
-#define ORANGEFS_VFS_OP_STATFS 0xFF00000B
-#define ORANGEFS_VFS_OP_TRUNCATE 0xFF00000C
-#define ORANGEFS_VFS_OP_MMAP_RA_FLUSH 0xFF00000D
-#define ORANGEFS_VFS_OP_FS_MOUNT 0xFF00000E
-#define ORANGEFS_VFS_OP_FS_UMOUNT 0xFF00000F
-#define ORANGEFS_VFS_OP_GETXATTR 0xFF000010
-#define ORANGEFS_VFS_OP_SETXATTR 0xFF000011
-#define ORANGEFS_VFS_OP_LISTXATTR 0xFF000012
-#define ORANGEFS_VFS_OP_REMOVEXATTR 0xFF000013
-#define ORANGEFS_VFS_OP_PARAM 0xFF000014
-#define ORANGEFS_VFS_OP_PERF_COUNT 0xFF000015
-#define ORANGEFS_VFS_OP_CANCEL 0xFF00EE00
-#define ORANGEFS_VFS_OP_FSYNC 0xFF00EE01
-#define ORANGEFS_VFS_OP_FSKEY 0xFF00EE02
-#define ORANGEFS_VFS_OP_READDIRPLUS 0xFF00EE03
-
-/*
- * Misc constants. Please retain them as multiples of 8!
- * Otherwise 32-64 bit interactions will be messed up :)
- */
-#define ORANGEFS_NAME_LEN 0x00000100
-#define ORANGEFS_MAX_DEBUG_STRING_LEN 0x00000400
-#define ORANGEFS_MAX_DEBUG_ARRAY_LEN 0x00000800
-
-/*
- * MAX_DIRENT_COUNT cannot be larger than ORANGEFS_REQ_LIMIT_LISTATTR.
- * The value of ORANGEFS_REQ_LIMIT_LISTATTR has been changed from 113 to 60
- * to accomodate an attribute object with mirrored handles.
- * MAX_DIRENT_COUNT is replaced by MAX_DIRENT_COUNT_READDIR and
- * MAX_DIRENT_COUNT_READDIRPLUS, since readdir doesn't trigger a listattr
- * but readdirplus might.
-*/
-#define MAX_DIRENT_COUNT_READDIR 0x00000060
-#define MAX_DIRENT_COUNT_READDIRPLUS 0x0000003C
-
-#include "upcall.h"
-#include "downcall.h"
-
-/*
- * These macros differ from proto macros in that they don't do any
- * byte-swappings and are used to ensure that kernel-clientcore interactions
- * don't cause any unaligned accesses etc on 64 bit machines
- */
-#ifndef roundup4
-#define roundup4(x) (((x)+3) & ~3)
-#endif
-
-#ifndef roundup8
-#define roundup8(x) (((x)+7) & ~7)
-#endif
-
-struct read_write_x {
- __s64 off;
- __s64 len;
-};
-
-#endif
+++ /dev/null
-/*
- * (C) 2001 Clemson University and The University of Chicago
- *
- * See COPYING in top-level directory.
- */
-
-/*
- * The ORANGEFS Linux kernel support allows ORANGEFS volumes to be mounted and
- * accessed through the Linux VFS (i.e. using standard I/O system calls).
- * This support is only needed on clients that wish to mount the file system.
- *
- */
-
-/*
- * Declarations and macros for the ORANGEFS Linux kernel support.
- */
-
-#ifndef __ORANGEFSKERNEL_H
-#define __ORANGEFSKERNEL_H
-
-#include <linux/kernel.h>
-#include <linux/moduleparam.h>
-#include <linux/statfs.h>
-#include <linux/backing-dev.h>
-#include <linux/device.h>
-#include <linux/mpage.h>
-#include <linux/namei.h>
-#include <linux/errno.h>
-#include <linux/init.h>
-#include <linux/module.h>
-#include <linux/slab.h>
-#include <linux/types.h>
-#include <linux/fs.h>
-#include <linux/vmalloc.h>
-
-#include <linux/aio.h>
-#include <linux/posix_acl.h>
-#include <linux/posix_acl_xattr.h>
-#include <linux/compat.h>
-#include <linux/mount.h>
-#include <linux/uaccess.h>
-#include <linux/atomic.h>
-#include <linux/uio.h>
-#include <linux/sched.h>
-#include <linux/mm.h>
-#include <linux/wait.h>
-#include <linux/dcache.h>
-#include <linux/pagemap.h>
-#include <linux/poll.h>
-#include <linux/rwsem.h>
-#include <linux/xattr.h>
-#include <linux/exportfs.h>
-
-#include <asm/unaligned.h>
-
-#include "pvfs2-dev-proto.h"
-
-#ifdef ORANGEFS_KERNEL_DEBUG
-#define ORANGEFS_DEFAULT_OP_TIMEOUT_SECS 10
-#else
-#define ORANGEFS_DEFAULT_OP_TIMEOUT_SECS 20
-#endif
-
-#define ORANGEFS_BUFMAP_WAIT_TIMEOUT_SECS 30
-
-#define ORANGEFS_DEFAULT_SLOT_TIMEOUT_SECS 900 /* 15 minutes */
-
-#define ORANGEFS_REQDEVICE_NAME "pvfs2-req"
-
-#define ORANGEFS_DEVREQ_MAGIC 0x20030529
-#define ORANGEFS_LINK_MAX 0x000000FF
-#define ORANGEFS_PURGE_RETRY_COUNT 0x00000005
-#define ORANGEFS_SEEK_END 0x00000002
-#define ORANGEFS_MAX_NUM_OPTIONS 0x00000004
-#define ORANGEFS_MAX_MOUNT_OPT_LEN 0x00000080
-#define ORANGEFS_MAX_FSKEY_LEN 64
-
-#define MAX_DEV_REQ_UPSIZE (2*sizeof(__s32) + \
-sizeof(__u64) + sizeof(struct orangefs_upcall_s))
-#define MAX_DEV_REQ_DOWNSIZE (2*sizeof(__s32) + \
-sizeof(__u64) + sizeof(struct orangefs_downcall_s))
-
-#define BITS_PER_LONG_DIV_8 (BITS_PER_LONG >> 3)
-
-/* borrowed from irda.h */
-#ifndef MSECS_TO_JIFFIES
-#define MSECS_TO_JIFFIES(ms) (((ms)*HZ+999)/1000)
-#endif
-
-#define MAX_ALIGNED_DEV_REQ_UPSIZE \
- (MAX_DEV_REQ_UPSIZE + \
- ((((MAX_DEV_REQ_UPSIZE / \
- (BITS_PER_LONG_DIV_8)) * \
- (BITS_PER_LONG_DIV_8)) + \
- (BITS_PER_LONG_DIV_8)) - \
- MAX_DEV_REQ_UPSIZE))
-
-#define MAX_ALIGNED_DEV_REQ_DOWNSIZE \
- (MAX_DEV_REQ_DOWNSIZE + \
- ((((MAX_DEV_REQ_DOWNSIZE / \
- (BITS_PER_LONG_DIV_8)) * \
- (BITS_PER_LONG_DIV_8)) + \
- (BITS_PER_LONG_DIV_8)) - \
- MAX_DEV_REQ_DOWNSIZE))
-
-/*
- * valid orangefs kernel operation states
- *
- * unknown - op was just initialized
- * waiting - op is on request_list (upward bound)
- * inprogr - op is in progress (waiting for downcall)
- * serviced - op has matching downcall; ok
- * purged - op has to start a timer since client-core
- * exited uncleanly before servicing op
- */
-enum orangefs_vfs_op_states {
- OP_VFS_STATE_UNKNOWN = 0,
- OP_VFS_STATE_WAITING = 1,
- OP_VFS_STATE_INPROGR = 2,
- OP_VFS_STATE_SERVICED = 4,
- OP_VFS_STATE_PURGED = 8,
-};
-
-#define set_op_state_waiting(op) ((op)->op_state = OP_VFS_STATE_WAITING)
-#define set_op_state_inprogress(op) ((op)->op_state = OP_VFS_STATE_INPROGR)
-#define set_op_state_serviced(op) ((op)->op_state = OP_VFS_STATE_SERVICED)
-#define set_op_state_purged(op) ((op)->op_state |= OP_VFS_STATE_PURGED)
-
-#define op_state_waiting(op) ((op)->op_state & OP_VFS_STATE_WAITING)
-#define op_state_in_progress(op) ((op)->op_state & OP_VFS_STATE_INPROGR)
-#define op_state_serviced(op) ((op)->op_state & OP_VFS_STATE_SERVICED)
-#define op_state_purged(op) ((op)->op_state & OP_VFS_STATE_PURGED)
-
-#define get_op(op) \
- do { \
- atomic_inc(&(op)->aio_ref_count); \
- gossip_debug(GOSSIP_DEV_DEBUG, \
- "(get) Alloced OP (%p:%llu)\n", \
- op, \
- llu((op)->tag)); \
- } while (0)
-
-#define put_op(op) \
- do { \
- if (atomic_sub_and_test(1, &(op)->aio_ref_count) == 1) { \
- gossip_debug(GOSSIP_DEV_DEBUG, \
- "(put) Releasing OP (%p:%llu)\n", \
- op, \
- llu((op)->tag)); \
- op_release(op); \
- } \
- } while (0)
-
-#define op_wait(op) (atomic_read(&(op)->aio_ref_count) <= 2 ? 0 : 1)
-
-/*
- * Defines for controlling whether I/O upcalls are for async or sync operations
- */
-enum ORANGEFS_async_io_type {
- ORANGEFS_VFS_SYNC_IO = 0,
- ORANGEFS_VFS_ASYNC_IO = 1,
-};
-
-/*
- * An array of client_debug_mask will be built to hold debug keyword/mask
- * values fetched from userspace.
- */
-struct client_debug_mask {
- char *keyword;
- __u64 mask1;
- __u64 mask2;
-};
-
-/*
- * orangefs kernel memory related flags
- */
-
-#if ((defined ORANGEFS_KERNEL_DEBUG) && (defined CONFIG_DEBUG_SLAB))
-#define ORANGEFS_CACHE_CREATE_FLAGS SLAB_RED_ZONE
-#else
-#define ORANGEFS_CACHE_CREATE_FLAGS 0
-#endif /* ((defined ORANGEFS_KERNEL_DEBUG) && (defined CONFIG_DEBUG_SLAB)) */
-
-#define ORANGEFS_CACHE_ALLOC_FLAGS (GFP_KERNEL)
-#define ORANGEFS_GFP_FLAGS (GFP_KERNEL)
-#define ORANGEFS_BUFMAP_GFP_FLAGS (GFP_KERNEL)
-
-/* orangefs xattr and acl related defines */
-#define ORANGEFS_XATTR_INDEX_POSIX_ACL_ACCESS 1
-#define ORANGEFS_XATTR_INDEX_POSIX_ACL_DEFAULT 2
-#define ORANGEFS_XATTR_INDEX_TRUSTED 3
-#define ORANGEFS_XATTR_INDEX_DEFAULT 4
-
-#if 0
-#ifndef POSIX_ACL_XATTR_ACCESS
-#define POSIX_ACL_XATTR_ACCESS "system.posix_acl_access"
-#endif
-#ifndef POSIX_ACL_XATTR_DEFAULT
-#define POSIX_ACL_XATTR_DEFAULT "system.posix_acl_default"
-#endif
-#endif
-
-#define ORANGEFS_XATTR_NAME_ACL_ACCESS POSIX_ACL_XATTR_ACCESS
-#define ORANGEFS_XATTR_NAME_ACL_DEFAULT POSIX_ACL_XATTR_DEFAULT
-#define ORANGEFS_XATTR_NAME_TRUSTED_PREFIX "trusted."
-#define ORANGEFS_XATTR_NAME_DEFAULT_PREFIX ""
-
-/* these functions are defined in orangefs-utils.c */
-int orangefs_prepare_cdm_array(char *debug_array_string);
-int orangefs_prepare_debugfs_help_string(int);
-
-/* defined in orangefs-debugfs.c */
-int orangefs_client_debug_init(void);
-
-void debug_string_to_mask(char *, void *, int);
-void do_c_mask(int, char *, struct client_debug_mask **);
-void do_k_mask(int, char *, __u64 **);
-
-void debug_mask_to_string(void *, int);
-void do_k_string(void *, int);
-void do_c_string(void *, int);
-int check_amalgam_keyword(void *, int);
-int keyword_is_amalgam(char *);
-
-/*these variables are defined in orangefs-mod.c */
-extern char kernel_debug_string[ORANGEFS_MAX_DEBUG_STRING_LEN];
-extern char client_debug_string[ORANGEFS_MAX_DEBUG_STRING_LEN];
-extern char client_debug_array_string[ORANGEFS_MAX_DEBUG_STRING_LEN];
-extern unsigned int kernel_mask_set_mod_init;
-
-extern int orangefs_init_acl(struct inode *inode, struct inode *dir);
-extern const struct xattr_handler *orangefs_xattr_handlers[];
-
-extern struct posix_acl *orangefs_get_acl(struct inode *inode, int type);
-extern int orangefs_set_acl(struct inode *inode, struct posix_acl *acl, int type);
-
-/*
- * Redefine xtvec structure so that we could move helper functions out of
- * the define
- */
-struct xtvec {
- __kernel_off_t xtv_off; /* must be off_t */
- __kernel_size_t xtv_len; /* must be size_t */
-};
-
-/*
- * orangefs data structures
- */
-struct orangefs_kernel_op_s {
- enum orangefs_vfs_op_states op_state;
- __u64 tag;
-
- /*
- * Set uses_shared_memory to 1 if this operation uses shared memory.
- * If true, then a retry on the op must also get a new shared memory
- * buffer and re-populate it.
- */
- int uses_shared_memory;
-
- struct orangefs_upcall_s upcall;
- struct orangefs_downcall_s downcall;
-
- wait_queue_head_t waitq;
- spinlock_t lock;
-
- int io_completed;
- wait_queue_head_t io_completion_waitq;
-
- /* VFS aio fields */
-
- /* used by the async I/O code to stash the orangefs_kiocb_s structure */
- void *priv;
-
- /* used again for the async I/O code for deallocation */
- atomic_t aio_ref_count;
-
- int attempts;
-
- struct list_head list;
-};
-
-/* per inode private orangefs info */
-struct orangefs_inode_s {
- struct orangefs_object_kref refn;
- char link_target[ORANGEFS_NAME_MAX];
- __s64 blksize;
- /*
- * Reading/Writing Extended attributes need to acquire the appropriate
- * reader/writer semaphore on the orangefs_inode_s structure.
- */
- struct rw_semaphore xattr_sem;
-
- struct inode vfs_inode;
- sector_t last_failed_block_index_read;
-
- /*
- * State of in-memory attributes not yet flushed to disk associated
- * with this object
- */
- unsigned long pinode_flags;
-
- /* All allocated orangefs_inode_s objects are chained to a list */
- struct list_head list;
-};
-
-#define P_ATIME_FLAG 0
-#define P_MTIME_FLAG 1
-#define P_CTIME_FLAG 2
-#define P_MODE_FLAG 3
-
-#define ClearAtimeFlag(pinode) clear_bit(P_ATIME_FLAG, &(pinode)->pinode_flags)
-#define SetAtimeFlag(pinode) set_bit(P_ATIME_FLAG, &(pinode)->pinode_flags)
-#define AtimeFlag(pinode) test_bit(P_ATIME_FLAG, &(pinode)->pinode_flags)
-
-#define ClearMtimeFlag(pinode) clear_bit(P_MTIME_FLAG, &(pinode)->pinode_flags)
-#define SetMtimeFlag(pinode) set_bit(P_MTIME_FLAG, &(pinode)->pinode_flags)
-#define MtimeFlag(pinode) test_bit(P_MTIME_FLAG, &(pinode)->pinode_flags)
-
-#define ClearCtimeFlag(pinode) clear_bit(P_CTIME_FLAG, &(pinode)->pinode_flags)
-#define SetCtimeFlag(pinode) set_bit(P_CTIME_FLAG, &(pinode)->pinode_flags)
-#define CtimeFlag(pinode) test_bit(P_CTIME_FLAG, &(pinode)->pinode_flags)
-
-#define ClearModeFlag(pinode) clear_bit(P_MODE_FLAG, &(pinode)->pinode_flags)
-#define SetModeFlag(pinode) set_bit(P_MODE_FLAG, &(pinode)->pinode_flags)
-#define ModeFlag(pinode) test_bit(P_MODE_FLAG, &(pinode)->pinode_flags)
-
-/* per superblock private orangefs info */
-struct orangefs_sb_info_s {
- struct orangefs_khandle root_khandle;
- __s32 fs_id;
- int id;
- int flags;
-#define ORANGEFS_OPT_INTR 0x01
-#define ORANGEFS_OPT_LOCAL_LOCK 0x02
- char devname[ORANGEFS_MAX_SERVER_ADDR_LEN];
- struct super_block *sb;
- int mount_pending;
- struct list_head list;
-};
-
-/*
- * structure that holds the state of any async I/O operation issued
- * through the VFS. Needed especially to handle cancellation requests
- * or even completion notification so that the VFS client-side daemon
- * can free up its vfs_request slots.
- */
-struct orangefs_kiocb_s {
- /* the pointer to the task that initiated the AIO */
- struct task_struct *tsk;
-
- /* pointer to the kiocb that kicked this operation */
- struct kiocb *kiocb;
-
- /* buffer index that was used for the I/O */
- struct orangefs_bufmap *bufmap;
- int buffer_index;
-
- /* orangefs kernel operation type */
- struct orangefs_kernel_op_s *op;
-
- /* The user space buffers from/to which I/O is being staged */
- struct iovec *iov;
-
- /* number of elements in the iovector */
- unsigned long nr_segs;
-
- /* set to indicate the type of the operation */
- int rw;
-
- /* file offset */
- loff_t offset;
-
- /* and the count in bytes */
- size_t bytes_to_be_copied;
-
- ssize_t bytes_copied;
- int needs_cleanup;
-};
-
-struct orangefs_stats {
- unsigned long cache_hits;
- unsigned long cache_misses;
- unsigned long reads;
- unsigned long writes;
-};
-
-extern struct orangefs_stats g_orangefs_stats;
-
-/*
- * NOTE: See Documentation/filesystems/porting for information
- * on implementing FOO_I and properly accessing fs private data
- */
-static inline struct orangefs_inode_s *ORANGEFS_I(struct inode *inode)
-{
- return container_of(inode, struct orangefs_inode_s, vfs_inode);
-}
-
-static inline struct orangefs_sb_info_s *ORANGEFS_SB(struct super_block *sb)
-{
- return (struct orangefs_sb_info_s *) sb->s_fs_info;
-}
-
-/* ino_t descends from "unsigned long", 8 bytes, 64 bits. */
-static inline ino_t orangefs_khandle_to_ino(struct orangefs_khandle *khandle)
-{
- union {
- unsigned char u[8];
- __u64 ino;
- } ihandle;
-
- ihandle.u[0] = khandle->u[0] ^ khandle->u[4];
- ihandle.u[1] = khandle->u[1] ^ khandle->u[5];
- ihandle.u[2] = khandle->u[2] ^ khandle->u[6];
- ihandle.u[3] = khandle->u[3] ^ khandle->u[7];
- ihandle.u[4] = khandle->u[12] ^ khandle->u[8];
- ihandle.u[5] = khandle->u[13] ^ khandle->u[9];
- ihandle.u[6] = khandle->u[14] ^ khandle->u[10];
- ihandle.u[7] = khandle->u[15] ^ khandle->u[11];
-
- return ihandle.ino;
-}
-
-static inline struct orangefs_khandle *get_khandle_from_ino(struct inode *inode)
-{
- return &(ORANGEFS_I(inode)->refn.khandle);
-}
-
-static inline __s32 get_fsid_from_ino(struct inode *inode)
-{
- return ORANGEFS_I(inode)->refn.fs_id;
-}
-
-static inline ino_t get_ino_from_khandle(struct inode *inode)
-{
- struct orangefs_khandle *khandle;
- ino_t ino;
-
- khandle = get_khandle_from_ino(inode);
- ino = orangefs_khandle_to_ino(khandle);
- return ino;
-}
-
-static inline ino_t get_parent_ino_from_dentry(struct dentry *dentry)
-{
- return get_ino_from_khandle(dentry->d_parent->d_inode);
-}
-
-static inline int is_root_handle(struct inode *inode)
-{
- gossip_debug(GOSSIP_DCACHE_DEBUG,
- "%s: root handle: %pU, this handle: %pU:\n",
- __func__,
- &ORANGEFS_SB(inode->i_sb)->root_khandle,
- get_khandle_from_ino(inode));
-
- if (ORANGEFS_khandle_cmp(&(ORANGEFS_SB(inode->i_sb)->root_khandle),
- get_khandle_from_ino(inode)))
- return 0;
- else
- return 1;
-}
-
-static inline int match_handle(struct orangefs_khandle resp_handle,
- struct inode *inode)
-{
- gossip_debug(GOSSIP_DCACHE_DEBUG,
- "%s: one handle: %pU, another handle:%pU:\n",
- __func__,
- &resp_handle,
- get_khandle_from_ino(inode));
-
- if (ORANGEFS_khandle_cmp(&resp_handle, get_khandle_from_ino(inode)))
- return 0;
- else
- return 1;
-}
-
-/*
- * defined in orangefs-cache.c
- */
-int op_cache_initialize(void);
-int op_cache_finalize(void);
-struct orangefs_kernel_op_s *op_alloc(__s32 type);
-char *get_opname_string(struct orangefs_kernel_op_s *new_op);
-void op_release(struct orangefs_kernel_op_s *op);
-
-int dev_req_cache_initialize(void);
-int dev_req_cache_finalize(void);
-void *dev_req_alloc(void);
-void dev_req_release(void *);
-
-int orangefs_inode_cache_initialize(void);
-int orangefs_inode_cache_finalize(void);
-
-int kiocb_cache_initialize(void);
-int kiocb_cache_finalize(void);
-struct orangefs_kiocb_s *kiocb_alloc(void);
-void kiocb_release(struct orangefs_kiocb_s *ptr);
-
-/*
- * defined in orangefs-mod.c
- */
-void purge_inprogress_ops(void);
-
-/*
- * defined in waitqueue.c
- */
-int wait_for_matching_downcall(struct orangefs_kernel_op_s *op);
-int wait_for_cancellation_downcall(struct orangefs_kernel_op_s *op);
-void orangefs_clean_up_interrupted_operation(struct orangefs_kernel_op_s *op);
-void purge_waiting_ops(void);
-
-/*
- * defined in super.c
- */
-struct dentry *orangefs_mount(struct file_system_type *fst,
- int flags,
- const char *devname,
- void *data);
-
-void orangefs_kill_sb(struct super_block *sb);
-int orangefs_remount(struct super_block *sb);
-
-int fsid_key_table_initialize(void);
-void fsid_key_table_finalize(void);
-
-/*
- * defined in inode.c
- */
-__u32 convert_to_orangefs_mask(unsigned long lite_mask);
-struct inode *orangefs_new_inode(struct super_block *sb,
- struct inode *dir,
- int mode,
- dev_t dev,
- struct orangefs_object_kref *ref);
-
-int orangefs_setattr(struct dentry *dentry, struct iattr *iattr);
-
-int orangefs_getattr(struct vfsmount *mnt,
- struct dentry *dentry,
- struct kstat *kstat);
-
-/*
- * defined in xattr.c
- */
-int orangefs_setxattr(struct dentry *dentry,
- const char *name,
- const void *value,
- size_t size,
- int flags);
-
-ssize_t orangefs_getxattr(struct dentry *dentry,
- const char *name,
- void *buffer,
- size_t size);
-
-ssize_t orangefs_listxattr(struct dentry *dentry, char *buffer, size_t size);
-
-/*
- * defined in namei.c
- */
-struct inode *orangefs_iget(struct super_block *sb,
- struct orangefs_object_kref *ref);
-
-ssize_t orangefs_inode_read(struct inode *inode,
- struct iov_iter *iter,
- loff_t *offset,
- loff_t readahead_size);
-
-/*
- * defined in devorangefs-req.c
- */
-int orangefs_dev_init(void);
-void orangefs_dev_cleanup(void);
-int is_daemon_in_service(void);
-int fs_mount_pending(__s32 fsid);
-
-/*
- * defined in orangefs-utils.c
- */
-__s32 fsid_of_op(struct orangefs_kernel_op_s *op);
-
-int orangefs_flush_inode(struct inode *inode);
-
-ssize_t orangefs_inode_getxattr(struct inode *inode,
- const char *prefix,
- const char *name,
- void *buffer,
- size_t size);
-
-int orangefs_inode_setxattr(struct inode *inode,
- const char *prefix,
- const char *name,
- const void *value,
- size_t size,
- int flags);
-
-int orangefs_inode_getattr(struct inode *inode, __u32 mask);
-
-int orangefs_inode_setattr(struct inode *inode, struct iattr *iattr);
-
-void orangefs_op_initialize(struct orangefs_kernel_op_s *op);
-
-void orangefs_make_bad_inode(struct inode *inode);
-
-void block_signals(sigset_t *);
-
-void set_signals(sigset_t *);
-
-int orangefs_unmount_sb(struct super_block *sb);
-
-int orangefs_cancel_op_in_progress(__u64 tag);
-
-static inline __u64 orangefs_convert_time_field(const struct timespec *ts)
-{
- return (__u64)ts->tv_sec;
-}
-
-int orangefs_normalize_to_errno(__s32 error_code);
-
-extern struct mutex devreq_mutex;
-extern struct mutex request_mutex;
-extern int debug;
-extern int op_timeout_secs;
-extern int slot_timeout_secs;
-extern struct list_head orangefs_superblocks;
-extern spinlock_t orangefs_superblocks_lock;
-extern struct list_head orangefs_request_list;
-extern spinlock_t orangefs_request_list_lock;
-extern wait_queue_head_t orangefs_request_list_waitq;
-extern struct list_head *htable_ops_in_progress;
-extern spinlock_t htable_ops_in_progress_lock;
-extern int hash_table_size;
-
-extern const struct address_space_operations orangefs_address_operations;
-extern struct backing_dev_info orangefs_backing_dev_info;
-extern struct inode_operations orangefs_file_inode_operations;
-extern const struct file_operations orangefs_file_operations;
-extern struct inode_operations orangefs_symlink_inode_operations;
-extern struct inode_operations orangefs_dir_inode_operations;
-extern const struct file_operations orangefs_dir_operations;
-extern const struct dentry_operations orangefs_dentry_operations;
-extern const struct file_operations orangefs_devreq_file_operations;
-
-extern wait_queue_head_t orangefs_bufmap_init_waitq;
-
-/*
- * misc convenience macros
- */
-#define add_op_to_request_list(op) \
-do { \
- spin_lock(&orangefs_request_list_lock); \
- spin_lock(&op->lock); \
- set_op_state_waiting(op); \
- list_add_tail(&op->list, &orangefs_request_list); \
- spin_unlock(&orangefs_request_list_lock); \
- spin_unlock(&op->lock); \
- wake_up_interruptible(&orangefs_request_list_waitq); \
-} while (0)
-
-#define add_priority_op_to_request_list(op) \
- do { \
- spin_lock(&orangefs_request_list_lock); \
- spin_lock(&op->lock); \
- set_op_state_waiting(op); \
- \
- list_add(&op->list, &orangefs_request_list); \
- spin_unlock(&orangefs_request_list_lock); \
- spin_unlock(&op->lock); \
- wake_up_interruptible(&orangefs_request_list_waitq); \
-} while (0)
-
-#define remove_op_from_request_list(op) \
- do { \
- struct list_head *tmp = NULL; \
- struct list_head *tmp_safe = NULL; \
- struct orangefs_kernel_op_s *tmp_op = NULL; \
- \
- spin_lock(&orangefs_request_list_lock); \
- list_for_each_safe(tmp, tmp_safe, &orangefs_request_list) { \
- tmp_op = list_entry(tmp, \
- struct orangefs_kernel_op_s, \
- list); \
- if (tmp_op && (tmp_op == op)) { \
- list_del(&tmp_op->list); \
- break; \
- } \
- } \
- spin_unlock(&orangefs_request_list_lock); \
- } while (0)
-
-#define ORANGEFS_OP_INTERRUPTIBLE 1 /* service_operation() is interruptible */
-#define ORANGEFS_OP_PRIORITY 2 /* service_operation() is high priority */
-#define ORANGEFS_OP_CANCELLATION 4 /* this is a cancellation */
-#define ORANGEFS_OP_NO_SEMAPHORE 8 /* don't acquire semaphore */
-#define ORANGEFS_OP_ASYNC 16 /* Queue it, but don't wait */
-
-int service_operation(struct orangefs_kernel_op_s *op,
- const char *op_name,
- int flags);
-
-/*
- * handles two possible error cases, depending on context.
- *
- * by design, our vfs i/o errors need to be handled in one of two ways,
- * depending on where the error occured.
- *
- * if the error happens in the waitqueue code because we either timed
- * out or a signal was raised while waiting, we need to cancel the
- * userspace i/o operation and free the op manually. this is done to
- * avoid having the device start writing application data to our shared
- * bufmap pages without us expecting it.
- *
- * FIXME: POSSIBLE OPTIMIZATION:
- * However, if we timed out or if we got a signal AND our upcall was never
- * picked off the queue (i.e. we were in OP_VFS_STATE_WAITING), then we don't
- * need to send a cancellation upcall. The way we can handle this is
- * set error_exit to 2 in such cases and 1 whenever cancellation has to be
- * sent and have handle_error
- * take care of this situation as well..
- *
- * if a orangefs sysint level error occured and i/o has been completed,
- * there is no need to cancel the operation, as the user has finished
- * using the bufmap page and so there is no danger in this case. in
- * this case, we wake up the device normally so that it may free the
- * op, as normal.
- *
- * note the only reason this is a macro is because both read and write
- * cases need the exact same handling code.
- */
-#define handle_io_error() \
-do { \
- if (!op_state_serviced(new_op)) { \
- orangefs_cancel_op_in_progress(new_op->tag); \
- op_release(new_op); \
- } else { \
- wake_up_daemon_for_return(new_op); \
- } \
- new_op = NULL; \
- orangefs_bufmap_put(bufmap, buffer_index); \
- buffer_index = -1; \
-} while (0)
-
-#define get_interruptible_flag(inode) \
- ((ORANGEFS_SB(inode->i_sb)->flags & ORANGEFS_OPT_INTR) ? \
- ORANGEFS_OP_INTERRUPTIBLE : 0)
-
-#define add_orangefs_sb(sb) \
-do { \
- gossip_debug(GOSSIP_SUPER_DEBUG, \
- "Adding SB %p to orangefs superblocks\n", \
- ORANGEFS_SB(sb)); \
- spin_lock(&orangefs_superblocks_lock); \
- list_add_tail(&ORANGEFS_SB(sb)->list, &orangefs_superblocks); \
- spin_unlock(&orangefs_superblocks_lock); \
-} while (0)
-
-#define remove_orangefs_sb(sb) \
-do { \
- struct list_head *tmp = NULL; \
- struct list_head *tmp_safe = NULL; \
- struct orangefs_sb_info_s *orangefs_sb = NULL; \
- \
- spin_lock(&orangefs_superblocks_lock); \
- list_for_each_safe(tmp, tmp_safe, &orangefs_superblocks) { \
- orangefs_sb = list_entry(tmp, \
- struct orangefs_sb_info_s, \
- list); \
- if (orangefs_sb && (orangefs_sb->sb == sb)) { \
- gossip_debug(GOSSIP_SUPER_DEBUG, \
- "Removing SB %p from orangefs superblocks\n", \
- orangefs_sb); \
- list_del(&orangefs_sb->list); \
- break; \
- } \
- } \
- spin_unlock(&orangefs_superblocks_lock); \
-} while (0)
-
-#define orangefs_lock_inode(inode) spin_lock(&inode->i_lock)
-#define orangefs_unlock_inode(inode) spin_unlock(&inode->i_lock)
-
-#define fill_default_sys_attrs(sys_attr, type, mode) \
-do { \
- sys_attr.owner = from_kuid(current_user_ns(), current_fsuid()); \
- sys_attr.group = from_kgid(current_user_ns(), current_fsgid()); \
- sys_attr.size = 0; \
- sys_attr.perms = ORANGEFS_util_translate_mode(mode); \
- sys_attr.objtype = type; \
- sys_attr.mask = ORANGEFS_ATTR_SYS_ALL_SETABLE; \
-} while (0)
-
-#define orangefs_inode_lock(__i) mutex_lock(&(__i)->i_mutex)
-
-#define orangefs_inode_unlock(__i) mutex_unlock(&(__i)->i_mutex)
-
-static inline void orangefs_i_size_write(struct inode *inode, loff_t i_size)
-{
-#if BITS_PER_LONG == 32 && defined(CONFIG_SMP)
- ornagefs_inode_lock(inode);
-#endif
- i_size_write(inode, i_size);
-#if BITS_PER_LONG == 32 && defined(CONFIG_SMP)
- orangefs_inode_unlock(inode);
-#endif
-}
-
-static inline unsigned int diff(struct timeval *end, struct timeval *begin)
-{
- if (end->tv_usec < begin->tv_usec) {
- end->tv_usec += 1000000;
- end->tv_sec--;
- }
- end->tv_sec -= begin->tv_sec;
- end->tv_usec -= begin->tv_usec;
- return (end->tv_sec * 1000000) + end->tv_usec;
-}
-
-#endif /* __ORANGEFSKERNEL_H */
+++ /dev/null
-/*
- * (C) 2001 Clemson University and The University of Chicago
- *
- * Changes by Acxiom Corporation to add proc file handler for pvfs2 client
- * parameters, Copyright Acxiom Corporation, 2005.
- *
- * See COPYING in top-level directory.
- */
-
-#include "protocol.h"
-#include "pvfs2-kernel.h"
-#include "pvfs2-debugfs.h"
-#include "pvfs2-sysfs.h"
-
-/* ORANGEFS_VERSION is a ./configure define */
-#ifndef ORANGEFS_VERSION
-#define ORANGEFS_VERSION "Unknown"
-#endif
-
-/*
- * global variables declared here
- */
-
-/* array of client debug keyword/mask values */
-struct client_debug_mask *cdm_array;
-int cdm_element_count;
-
-char kernel_debug_string[ORANGEFS_MAX_DEBUG_STRING_LEN] = "none";
-char client_debug_string[ORANGEFS_MAX_DEBUG_STRING_LEN];
-char client_debug_array_string[ORANGEFS_MAX_DEBUG_STRING_LEN];
-
-char *debug_help_string;
-int help_string_initialized;
-struct dentry *help_file_dentry;
-struct dentry *client_debug_dentry;
-struct dentry *debug_dir;
-int client_verbose_index;
-int client_all_index;
-struct orangefs_stats g_orangefs_stats;
-
-/* the size of the hash tables for ops in progress */
-int hash_table_size = 509;
-
-static ulong module_parm_debug_mask;
-__u64 gossip_debug_mask;
-struct client_debug_mask client_debug_mask = { NULL, 0, 0 };
-unsigned int kernel_mask_set_mod_init; /* implicitly false */
-int op_timeout_secs = ORANGEFS_DEFAULT_OP_TIMEOUT_SECS;
-int slot_timeout_secs = ORANGEFS_DEFAULT_SLOT_TIMEOUT_SECS;
-
-MODULE_LICENSE("GPL");
-MODULE_AUTHOR("ORANGEFS Development Team");
-MODULE_DESCRIPTION("The Linux Kernel VFS interface to ORANGEFS");
-MODULE_PARM_DESC(module_parm_debug_mask, "debugging level (see orangefs-debug.h for values)");
-MODULE_PARM_DESC(op_timeout_secs, "Operation timeout in seconds");
-MODULE_PARM_DESC(slot_timeout_secs, "Slot timeout in seconds");
-MODULE_PARM_DESC(hash_table_size,
- "size of hash table for operations in progress");
-
-static struct file_system_type orangefs_fs_type = {
- .name = "pvfs2",
- .mount = orangefs_mount,
- .kill_sb = orangefs_kill_sb,
- .owner = THIS_MODULE,
-};
-
-module_param(hash_table_size, int, 0);
-module_param(module_parm_debug_mask, ulong, 0644);
-module_param(op_timeout_secs, int, 0);
-module_param(slot_timeout_secs, int, 0);
-
-/* synchronizes the request device file */
-struct mutex devreq_mutex;
-
-/*
- * Blocks non-priority requests from being queued for servicing. This
- * could be used for protecting the request list data structure, but
- * for now it's only being used to stall the op addition to the request
- * list
- */
-struct mutex request_mutex;
-
-/* hash table for storing operations waiting for matching downcall */
-struct list_head *htable_ops_in_progress;
-DEFINE_SPINLOCK(htable_ops_in_progress_lock);
-
-/* list for queueing upcall operations */
-LIST_HEAD(orangefs_request_list);
-
-/* used to protect the above orangefs_request_list */
-DEFINE_SPINLOCK(orangefs_request_list_lock);
-
-/* used for incoming request notification */
-DECLARE_WAIT_QUEUE_HEAD(orangefs_request_list_waitq);
-
-static int __init orangefs_init(void)
-{
- int ret = -1;
- __u32 i = 0;
-
- /* convert input debug mask to a 64-bit unsigned integer */
- gossip_debug_mask = (unsigned long long) module_parm_debug_mask;
-
- /*
- * set the kernel's gossip debug string; invalid mask values will
- * be ignored.
- */
- debug_mask_to_string(&gossip_debug_mask, 0);
-
- /* remove any invalid values from the mask */
- debug_string_to_mask(kernel_debug_string, &gossip_debug_mask, 0);
-
- /*
- * if the mask has a non-zero value, then indicate that the mask
- * was set when the kernel module was loaded. The orangefs dev ioctl
- * command will look at this boolean to determine if the kernel's
- * debug mask should be overwritten when the client-core is started.
- */
- if (gossip_debug_mask != 0)
- kernel_mask_set_mod_init = true;
-
- /* print information message to the system log */
- pr_info("orangefs: orangefs_init called with debug mask: :%s: :%llx:\n",
- kernel_debug_string,
- (unsigned long long)gossip_debug_mask);
-
- ret = bdi_init(&orangefs_backing_dev_info);
-
- if (ret)
- return ret;
-
- if (op_timeout_secs < 0)
- op_timeout_secs = 0;
-
- if (slot_timeout_secs < 0)
- slot_timeout_secs = 0;
-
- /* initialize global book keeping data structures */
- ret = op_cache_initialize();
- if (ret < 0)
- goto err;
-
- ret = dev_req_cache_initialize();
- if (ret < 0)
- goto cleanup_op;
-
- ret = orangefs_inode_cache_initialize();
- if (ret < 0)
- goto cleanup_req;
-
- ret = kiocb_cache_initialize();
- if (ret < 0)
- goto cleanup_inode;
-
- /* Initialize the pvfsdev subsystem. */
- ret = orangefs_dev_init();
- if (ret < 0) {
- gossip_err("orangefs: could not initialize device subsystem %d!\n",
- ret);
- goto cleanup_kiocb;
- }
-
- mutex_init(&devreq_mutex);
- mutex_init(&request_mutex);
-
- htable_ops_in_progress =
- kcalloc(hash_table_size, sizeof(struct list_head), GFP_KERNEL);
- if (!htable_ops_in_progress) {
- gossip_err("Failed to initialize op hashtable");
- ret = -ENOMEM;
- goto cleanup_device;
- }
-
- /* initialize a doubly linked at each hash table index */
- for (i = 0; i < hash_table_size; i++)
- INIT_LIST_HEAD(&htable_ops_in_progress[i]);
-
- ret = fsid_key_table_initialize();
- if (ret < 0)
- goto cleanup_progress_table;
-
- /*
- * Build the contents of /sys/kernel/debug/orangefs/debug-help
- * from the keywords in the kernel keyword/mask array.
- *
- * The keywords in the client keyword/mask array are
- * unknown at boot time.
- *
- * orangefs_prepare_debugfs_help_string will be used again
- * later to rebuild the debug-help file after the client starts
- * and passes along the needed info. The argument signifies
- * which time orangefs_prepare_debugfs_help_string is being
- * called.
- *
- */
- ret = orangefs_prepare_debugfs_help_string(1);
- if (ret)
- goto out;
-
- orangefs_debugfs_init();
- orangefs_kernel_debug_init();
- orangefs_sysfs_init();
-
- ret = register_filesystem(&orangefs_fs_type);
- if (ret == 0) {
- pr_info("orangefs: module version %s loaded\n", ORANGEFS_VERSION);
- return 0;
- }
-
- orangefs_debugfs_cleanup();
- orangefs_sysfs_exit();
- fsid_key_table_finalize();
-
-cleanup_progress_table:
- kfree(htable_ops_in_progress);
-
-cleanup_device:
- orangefs_dev_cleanup();
-
-cleanup_kiocb:
- kiocb_cache_finalize();
-
-cleanup_inode:
- orangefs_inode_cache_finalize();
-
-cleanup_req:
- dev_req_cache_finalize();
-
-cleanup_op:
- op_cache_finalize();
-
-err:
- bdi_destroy(&orangefs_backing_dev_info);
-
-out:
- return ret;
-}
-
-static void __exit orangefs_exit(void)
-{
- int i = 0;
- struct orangefs_kernel_op_s *cur_op = NULL;
-
- gossip_debug(GOSSIP_INIT_DEBUG, "orangefs: orangefs_exit called\n");
-
- unregister_filesystem(&orangefs_fs_type);
- orangefs_debugfs_cleanup();
- orangefs_sysfs_exit();
- fsid_key_table_finalize();
- orangefs_dev_cleanup();
- /* clear out all pending upcall op requests */
- spin_lock(&orangefs_request_list_lock);
- while (!list_empty(&orangefs_request_list)) {
- cur_op = list_entry(orangefs_request_list.next,
- struct orangefs_kernel_op_s,
- list);
- list_del(&cur_op->list);
- gossip_debug(GOSSIP_INIT_DEBUG,
- "Freeing unhandled upcall request type %d\n",
- cur_op->upcall.type);
- op_release(cur_op);
- }
- spin_unlock(&orangefs_request_list_lock);
-
- for (i = 0; i < hash_table_size; i++)
- while (!list_empty(&htable_ops_in_progress[i])) {
- cur_op = list_entry(htable_ops_in_progress[i].next,
- struct orangefs_kernel_op_s,
- list);
- op_release(cur_op);
- }
-
- kiocb_cache_finalize();
- orangefs_inode_cache_finalize();
- dev_req_cache_finalize();
- op_cache_finalize();
-
- kfree(htable_ops_in_progress);
-
- bdi_destroy(&orangefs_backing_dev_info);
-
- pr_info("orangefs: module version %s unloaded\n", ORANGEFS_VERSION);
-}
-
-/*
- * What we do in this function is to walk the list of operations
- * that are in progress in the hash table and mark them as purged as well.
- */
-void purge_inprogress_ops(void)
-{
- int i;
-
- for (i = 0; i < hash_table_size; i++) {
- struct orangefs_kernel_op_s *op;
- struct orangefs_kernel_op_s *next;
-
- list_for_each_entry_safe(op,
- next,
- &htable_ops_in_progress[i],
- list) {
- spin_lock(&op->lock);
- gossip_debug(GOSSIP_INIT_DEBUG,
- "pvfs2-client-core: purging in-progress op tag "
- "%llu %s\n",
- llu(op->tag),
- get_opname_string(op));
- set_op_state_purged(op);
- spin_unlock(&op->lock);
- wake_up_interruptible(&op->waitq);
- }
- }
-}
-
-module_init(orangefs_init);
-module_exit(orangefs_exit);
+++ /dev/null
-/*
- * Documentation/ABI/stable/orangefs-sysfs:
- *
- * What: /sys/fs/orangefs/perf_counter_reset
- * Date: June 2015
- * Contact: Mike Marshall <hubcap@omnibond.com>
- * Description:
- * echo a 0 or a 1 into perf_counter_reset to
- * reset all the counters in
- * /sys/fs/orangefs/perf_counters
- * except ones with PINT_PERF_PRESERVE set.
- *
- *
- * What: /sys/fs/orangefs/perf_counters/...
- * Date: Jun 2015
- * Contact: Mike Marshall <hubcap@omnibond.com>
- * Description:
- * Counters and settings for various caches.
- * Read only.
- *
- *
- * What: /sys/fs/orangefs/perf_time_interval_secs
- * Date: Jun 2015
- * Contact: Mike Marshall <hubcap@omnibond.com>
- * Description:
- * Length of perf counter intervals in
- * seconds.
- *
- *
- * What: /sys/fs/orangefs/perf_history_size
- * Date: Jun 2015
- * Contact: Mike Marshall <hubcap@omnibond.com>
- * Description:
- * The perf_counters cache statistics have N, or
- * perf_history_size, samples. The default is
- * one.
- *
- * Every perf_time_interval_secs the (first)
- * samples are reset.
- *
- * If N is greater than one, the "current" set
- * of samples is reset, and the samples from the
- * other N-1 intervals remain available.
- *
- *
- * What: /sys/fs/orangefs/op_timeout_secs
- * Date: Jun 2015
- * Contact: Mike Marshall <hubcap@omnibond.com>
- * Description:
- * Service operation timeout in seconds.
- *
- *
- * What: /sys/fs/orangefs/slot_timeout_secs
- * Date: Jun 2015
- * Contact: Mike Marshall <hubcap@omnibond.com>
- * Description:
- * "Slot" timeout in seconds. A "slot"
- * is an indexed buffer in the shared
- * memory segment used for communication
- * between the kernel module and userspace.
- * Slots are requested and waited for,
- * the wait times out after slot_timeout_secs.
- *
- *
- * What: /sys/fs/orangefs/acache/...
- * Date: Jun 2015
- * Contact: Mike Marshall <hubcap@omnibond.com>
- * Description:
- * Attribute cache configurable settings.
- *
- *
- * What: /sys/fs/orangefs/ncache/...
- * Date: Jun 2015
- * Contact: Mike Marshall <hubcap@omnibond.com>
- * Description:
- * Name cache configurable settings.
- *
- *
- * What: /sys/fs/orangefs/capcache/...
- * Date: Jun 2015
- * Contact: Mike Marshall <hubcap@omnibond.com>
- * Description:
- * Capability cache configurable settings.
- *
- *
- * What: /sys/fs/orangefs/ccache/...
- * Date: Jun 2015
- * Contact: Mike Marshall <hubcap@omnibond.com>
- * Description:
- * Credential cache configurable settings.
- *
- */
-
-#include <linux/fs.h>
-#include <linux/kobject.h>
-#include <linux/string.h>
-#include <linux/sysfs.h>
-#include <linux/module.h>
-#include <linux/init.h>
-
-#include "protocol.h"
-#include "pvfs2-kernel.h"
-#include "pvfs2-sysfs.h"
-
-#define ORANGEFS_KOBJ_ID "orangefs"
-#define ACACHE_KOBJ_ID "acache"
-#define CAPCACHE_KOBJ_ID "capcache"
-#define CCACHE_KOBJ_ID "ccache"
-#define NCACHE_KOBJ_ID "ncache"
-#define PC_KOBJ_ID "pc"
-#define STATS_KOBJ_ID "stats"
-
-struct orangefs_obj {
- struct kobject kobj;
- int op_timeout_secs;
- int perf_counter_reset;
- int perf_history_size;
- int perf_time_interval_secs;
- int slot_timeout_secs;
-};
-
-struct acache_orangefs_obj {
- struct kobject kobj;
- int hard_limit;
- int reclaim_percentage;
- int soft_limit;
- int timeout_msecs;
-};
-
-struct capcache_orangefs_obj {
- struct kobject kobj;
- int hard_limit;
- int reclaim_percentage;
- int soft_limit;
- int timeout_secs;
-};
-
-struct ccache_orangefs_obj {
- struct kobject kobj;
- int hard_limit;
- int reclaim_percentage;
- int soft_limit;
- int timeout_secs;
-};
-
-struct ncache_orangefs_obj {
- struct kobject kobj;
- int hard_limit;
- int reclaim_percentage;
- int soft_limit;
- int timeout_msecs;
-};
-
-struct pc_orangefs_obj {
- struct kobject kobj;
- char *acache;
- char *capcache;
- char *ncache;
-};
-
-struct stats_orangefs_obj {
- struct kobject kobj;
- int reads;
- int writes;
-};
-
-struct orangefs_attribute {
- struct attribute attr;
- ssize_t (*show)(struct orangefs_obj *orangefs_obj,
- struct orangefs_attribute *attr,
- char *buf);
- ssize_t (*store)(struct orangefs_obj *orangefs_obj,
- struct orangefs_attribute *attr,
- const char *buf,
- size_t count);
-};
-
-struct acache_orangefs_attribute {
- struct attribute attr;
- ssize_t (*show)(struct acache_orangefs_obj *acache_orangefs_obj,
- struct acache_orangefs_attribute *attr,
- char *buf);
- ssize_t (*store)(struct acache_orangefs_obj *acache_orangefs_obj,
- struct acache_orangefs_attribute *attr,
- const char *buf,
- size_t count);
-};
-
-struct capcache_orangefs_attribute {
- struct attribute attr;
- ssize_t (*show)(struct capcache_orangefs_obj *capcache_orangefs_obj,
- struct capcache_orangefs_attribute *attr,
- char *buf);
- ssize_t (*store)(struct capcache_orangefs_obj *capcache_orangefs_obj,
- struct capcache_orangefs_attribute *attr,
- const char *buf,
- size_t count);
-};
-
-struct ccache_orangefs_attribute {
- struct attribute attr;
- ssize_t (*show)(struct ccache_orangefs_obj *ccache_orangefs_obj,
- struct ccache_orangefs_attribute *attr,
- char *buf);
- ssize_t (*store)(struct ccache_orangefs_obj *ccache_orangefs_obj,
- struct ccache_orangefs_attribute *attr,
- const char *buf,
- size_t count);
-};
-
-struct ncache_orangefs_attribute {
- struct attribute attr;
- ssize_t (*show)(struct ncache_orangefs_obj *ncache_orangefs_obj,
- struct ncache_orangefs_attribute *attr,
- char *buf);
- ssize_t (*store)(struct ncache_orangefs_obj *ncache_orangefs_obj,
- struct ncache_orangefs_attribute *attr,
- const char *buf,
- size_t count);
-};
-
-struct pc_orangefs_attribute {
- struct attribute attr;
- ssize_t (*show)(struct pc_orangefs_obj *pc_orangefs_obj,
- struct pc_orangefs_attribute *attr,
- char *buf);
- ssize_t (*store)(struct pc_orangefs_obj *pc_orangefs_obj,
- struct pc_orangefs_attribute *attr,
- const char *buf,
- size_t count);
-};
-
-struct stats_orangefs_attribute {
- struct attribute attr;
- ssize_t (*show)(struct stats_orangefs_obj *stats_orangefs_obj,
- struct stats_orangefs_attribute *attr,
- char *buf);
- ssize_t (*store)(struct stats_orangefs_obj *stats_orangefs_obj,
- struct stats_orangefs_attribute *attr,
- const char *buf,
- size_t count);
-};
-
-static ssize_t orangefs_attr_show(struct kobject *kobj,
- struct attribute *attr,
- char *buf)
-{
- struct orangefs_attribute *attribute;
- struct orangefs_obj *orangefs_obj;
- int rc;
-
- attribute = container_of(attr, struct orangefs_attribute, attr);
- orangefs_obj = container_of(kobj, struct orangefs_obj, kobj);
-
- if (!attribute->show) {
- rc = -EIO;
- goto out;
- }
-
- rc = attribute->show(orangefs_obj, attribute, buf);
-
-out:
- return rc;
-}
-
-static ssize_t orangefs_attr_store(struct kobject *kobj,
- struct attribute *attr,
- const char *buf,
- size_t len)
-{
- struct orangefs_attribute *attribute;
- struct orangefs_obj *orangefs_obj;
- int rc;
-
- gossip_debug(GOSSIP_SYSFS_DEBUG,
- "orangefs_attr_store: start\n");
-
- attribute = container_of(attr, struct orangefs_attribute, attr);
- orangefs_obj = container_of(kobj, struct orangefs_obj, kobj);
-
- if (!attribute->store) {
- rc = -EIO;
- goto out;
- }
-
- rc = attribute->store(orangefs_obj, attribute, buf, len);
-
-out:
- return rc;
-}
-
-static const struct sysfs_ops orangefs_sysfs_ops = {
- .show = orangefs_attr_show,
- .store = orangefs_attr_store,
-};
-
-static ssize_t acache_orangefs_attr_show(struct kobject *kobj,
- struct attribute *attr,
- char *buf)
-{
- struct acache_orangefs_attribute *attribute;
- struct acache_orangefs_obj *acache_orangefs_obj;
- int rc;
-
- attribute = container_of(attr, struct acache_orangefs_attribute, attr);
- acache_orangefs_obj =
- container_of(kobj, struct acache_orangefs_obj, kobj);
-
- if (!attribute->show) {
- rc = -EIO;
- goto out;
- }
-
- rc = attribute->show(acache_orangefs_obj, attribute, buf);
-
-out:
- return rc;
-}
-
-static ssize_t acache_orangefs_attr_store(struct kobject *kobj,
- struct attribute *attr,
- const char *buf,
- size_t len)
-{
- struct acache_orangefs_attribute *attribute;
- struct acache_orangefs_obj *acache_orangefs_obj;
- int rc;
-
- gossip_debug(GOSSIP_SYSFS_DEBUG,
- "acache_orangefs_attr_store: start\n");
-
- attribute = container_of(attr, struct acache_orangefs_attribute, attr);
- acache_orangefs_obj =
- container_of(kobj, struct acache_orangefs_obj, kobj);
-
- if (!attribute->store) {
- rc = -EIO;
- goto out;
- }
-
- rc = attribute->store(acache_orangefs_obj, attribute, buf, len);
-
-out:
- return rc;
-}
-
-static const struct sysfs_ops acache_orangefs_sysfs_ops = {
- .show = acache_orangefs_attr_show,
- .store = acache_orangefs_attr_store,
-};
-
-static ssize_t capcache_orangefs_attr_show(struct kobject *kobj,
- struct attribute *attr,
- char *buf)
-{
- struct capcache_orangefs_attribute *attribute;
- struct capcache_orangefs_obj *capcache_orangefs_obj;
- int rc;
-
- attribute =
- container_of(attr, struct capcache_orangefs_attribute, attr);
- capcache_orangefs_obj =
- container_of(kobj, struct capcache_orangefs_obj, kobj);
-
- if (!attribute->show) {
- rc = -EIO;
- goto out;
- }
-
- rc = attribute->show(capcache_orangefs_obj, attribute, buf);
-
-out:
- return rc;
-}
-
-static ssize_t capcache_orangefs_attr_store(struct kobject *kobj,
- struct attribute *attr,
- const char *buf,
- size_t len)
-{
- struct capcache_orangefs_attribute *attribute;
- struct capcache_orangefs_obj *capcache_orangefs_obj;
- int rc;
-
- gossip_debug(GOSSIP_SYSFS_DEBUG,
- "capcache_orangefs_attr_store: start\n");
-
- attribute =
- container_of(attr, struct capcache_orangefs_attribute, attr);
- capcache_orangefs_obj =
- container_of(kobj, struct capcache_orangefs_obj, kobj);
-
- if (!attribute->store) {
- rc = -EIO;
- goto out;
- }
-
- rc = attribute->store(capcache_orangefs_obj, attribute, buf, len);
-
-out:
- return rc;
-}
-
-static const struct sysfs_ops capcache_orangefs_sysfs_ops = {
- .show = capcache_orangefs_attr_show,
- .store = capcache_orangefs_attr_store,
-};
-
-static ssize_t ccache_orangefs_attr_show(struct kobject *kobj,
- struct attribute *attr,
- char *buf)
-{
- struct ccache_orangefs_attribute *attribute;
- struct ccache_orangefs_obj *ccache_orangefs_obj;
- int rc;
-
- attribute =
- container_of(attr, struct ccache_orangefs_attribute, attr);
- ccache_orangefs_obj =
- container_of(kobj, struct ccache_orangefs_obj, kobj);
-
- if (!attribute->show) {
- rc = -EIO;
- goto out;
- }
-
- rc = attribute->show(ccache_orangefs_obj, attribute, buf);
-
-out:
- return rc;
-}
-
-static ssize_t ccache_orangefs_attr_store(struct kobject *kobj,
- struct attribute *attr,
- const char *buf,
- size_t len)
-{
- struct ccache_orangefs_attribute *attribute;
- struct ccache_orangefs_obj *ccache_orangefs_obj;
- int rc;
-
- gossip_debug(GOSSIP_SYSFS_DEBUG,
- "ccache_orangefs_attr_store: start\n");
-
- attribute =
- container_of(attr, struct ccache_orangefs_attribute, attr);
- ccache_orangefs_obj =
- container_of(kobj, struct ccache_orangefs_obj, kobj);
-
- if (!attribute->store) {
- rc = -EIO;
- goto out;
- }
-
- rc = attribute->store(ccache_orangefs_obj, attribute, buf, len);
-
-out:
- return rc;
-}
-
-static const struct sysfs_ops ccache_orangefs_sysfs_ops = {
- .show = ccache_orangefs_attr_show,
- .store = ccache_orangefs_attr_store,
-};
-
-static ssize_t ncache_orangefs_attr_show(struct kobject *kobj,
- struct attribute *attr,
- char *buf)
-{
- struct ncache_orangefs_attribute *attribute;
- struct ncache_orangefs_obj *ncache_orangefs_obj;
- int rc;
-
- attribute = container_of(attr, struct ncache_orangefs_attribute, attr);
- ncache_orangefs_obj =
- container_of(kobj, struct ncache_orangefs_obj, kobj);
-
- if (!attribute->show) {
- rc = -EIO;
- goto out;
- }
-
- rc = attribute->show(ncache_orangefs_obj, attribute, buf);
-
-out:
- return rc;
-}
-
-static ssize_t ncache_orangefs_attr_store(struct kobject *kobj,
- struct attribute *attr,
- const char *buf,
- size_t len)
-{
- struct ncache_orangefs_attribute *attribute;
- struct ncache_orangefs_obj *ncache_orangefs_obj;
- int rc;
-
- gossip_debug(GOSSIP_SYSFS_DEBUG,
- "ncache_orangefs_attr_store: start\n");
-
- attribute = container_of(attr, struct ncache_orangefs_attribute, attr);
- ncache_orangefs_obj =
- container_of(kobj, struct ncache_orangefs_obj, kobj);
-
- if (!attribute->store) {
- rc = -EIO;
- goto out;
- }
-
- rc = attribute->store(ncache_orangefs_obj, attribute, buf, len);
-
-out:
- return rc;
-}
-
-static const struct sysfs_ops ncache_orangefs_sysfs_ops = {
- .show = ncache_orangefs_attr_show,
- .store = ncache_orangefs_attr_store,
-};
-
-static ssize_t pc_orangefs_attr_show(struct kobject *kobj,
- struct attribute *attr,
- char *buf)
-{
- struct pc_orangefs_attribute *attribute;
- struct pc_orangefs_obj *pc_orangefs_obj;
- int rc;
-
- attribute = container_of(attr, struct pc_orangefs_attribute, attr);
- pc_orangefs_obj =
- container_of(kobj, struct pc_orangefs_obj, kobj);
-
- if (!attribute->show) {
- rc = -EIO;
- goto out;
- }
-
- rc = attribute->show(pc_orangefs_obj, attribute, buf);
-
-out:
- return rc;
-}
-
-static const struct sysfs_ops pc_orangefs_sysfs_ops = {
- .show = pc_orangefs_attr_show,
-};
-
-static ssize_t stats_orangefs_attr_show(struct kobject *kobj,
- struct attribute *attr,
- char *buf)
-{
- struct stats_orangefs_attribute *attribute;
- struct stats_orangefs_obj *stats_orangefs_obj;
- int rc;
-
- attribute = container_of(attr, struct stats_orangefs_attribute, attr);
- stats_orangefs_obj =
- container_of(kobj, struct stats_orangefs_obj, kobj);
-
- if (!attribute->show) {
- rc = -EIO;
- goto out;
- }
-
- rc = attribute->show(stats_orangefs_obj, attribute, buf);
-
-out:
- return rc;
-}
-
-static const struct sysfs_ops stats_orangefs_sysfs_ops = {
- .show = stats_orangefs_attr_show,
-};
-
-static void orangefs_release(struct kobject *kobj)
-{
- struct orangefs_obj *orangefs_obj;
-
- orangefs_obj = container_of(kobj, struct orangefs_obj, kobj);
- kfree(orangefs_obj);
-}
-
-static void acache_orangefs_release(struct kobject *kobj)
-{
- struct acache_orangefs_obj *acache_orangefs_obj;
-
- acache_orangefs_obj =
- container_of(kobj, struct acache_orangefs_obj, kobj);
- kfree(acache_orangefs_obj);
-}
-
-static void capcache_orangefs_release(struct kobject *kobj)
-{
- struct capcache_orangefs_obj *capcache_orangefs_obj;
-
- capcache_orangefs_obj =
- container_of(kobj, struct capcache_orangefs_obj, kobj);
- kfree(capcache_orangefs_obj);
-}
-
-static void ccache_orangefs_release(struct kobject *kobj)
-{
- struct ccache_orangefs_obj *ccache_orangefs_obj;
-
- ccache_orangefs_obj =
- container_of(kobj, struct ccache_orangefs_obj, kobj);
- kfree(ccache_orangefs_obj);
-}
-
-static void ncache_orangefs_release(struct kobject *kobj)
-{
- struct ncache_orangefs_obj *ncache_orangefs_obj;
-
- ncache_orangefs_obj =
- container_of(kobj, struct ncache_orangefs_obj, kobj);
- kfree(ncache_orangefs_obj);
-}
-
-static void pc_orangefs_release(struct kobject *kobj)
-{
- struct pc_orangefs_obj *pc_orangefs_obj;
-
- pc_orangefs_obj =
- container_of(kobj, struct pc_orangefs_obj, kobj);
- kfree(pc_orangefs_obj);
-}
-
-static void stats_orangefs_release(struct kobject *kobj)
-{
- struct stats_orangefs_obj *stats_orangefs_obj;
-
- stats_orangefs_obj =
- container_of(kobj, struct stats_orangefs_obj, kobj);
- kfree(stats_orangefs_obj);
-}
-
-static ssize_t sysfs_int_show(char *kobj_id, char *buf, void *attr)
-{
- int rc = -EIO;
- struct orangefs_attribute *orangefs_attr;
- struct stats_orangefs_attribute *stats_orangefs_attr;
-
- gossip_debug(GOSSIP_SYSFS_DEBUG, "sysfs_int_show: id:%s:\n", kobj_id);
-
- if (!strcmp(kobj_id, ORANGEFS_KOBJ_ID)) {
- orangefs_attr = (struct orangefs_attribute *)attr;
-
- if (!strcmp(orangefs_attr->attr.name, "op_timeout_secs")) {
- rc = scnprintf(buf,
- PAGE_SIZE,
- "%d\n",
- op_timeout_secs);
- goto out;
- } else if (!strcmp(orangefs_attr->attr.name,
- "slot_timeout_secs")) {
- rc = scnprintf(buf,
- PAGE_SIZE,
- "%d\n",
- slot_timeout_secs);
- goto out;
- } else {
- goto out;
- }
-
- } else if (!strcmp(kobj_id, STATS_KOBJ_ID)) {
- stats_orangefs_attr = (struct stats_orangefs_attribute *)attr;
-
- if (!strcmp(stats_orangefs_attr->attr.name, "reads")) {
- rc = scnprintf(buf,
- PAGE_SIZE,
- "%lu\n",
- g_orangefs_stats.reads);
- goto out;
- } else if (!strcmp(stats_orangefs_attr->attr.name, "writes")) {
- rc = scnprintf(buf,
- PAGE_SIZE,
- "%lu\n",
- g_orangefs_stats.writes);
- goto out;
- } else {
- goto out;
- }
- }
-
-out:
-
- return rc;
-}
-
-static ssize_t int_orangefs_show(struct orangefs_obj *orangefs_obj,
- struct orangefs_attribute *attr,
- char *buf)
-{
- int rc;
-
- gossip_debug(GOSSIP_SYSFS_DEBUG,
- "int_orangefs_show:start attr->attr.name:%s:\n",
- attr->attr.name);
-
- rc = sysfs_int_show(ORANGEFS_KOBJ_ID, buf, (void *) attr);
-
- return rc;
-}
-
-static ssize_t int_stats_show(struct stats_orangefs_obj *stats_orangefs_obj,
- struct stats_orangefs_attribute *attr,
- char *buf)
-{
- int rc;
-
- gossip_debug(GOSSIP_SYSFS_DEBUG,
- "int_stats_show:start attr->attr.name:%s:\n",
- attr->attr.name);
-
- rc = sysfs_int_show(STATS_KOBJ_ID, buf, (void *) attr);
-
- return rc;
-}
-
-static ssize_t int_store(struct orangefs_obj *orangefs_obj,
- struct orangefs_attribute *attr,
- const char *buf,
- size_t count)
-{
- int rc = 0;
-
- gossip_debug(GOSSIP_SYSFS_DEBUG,
- "int_store: start attr->attr.name:%s: buf:%s:\n",
- attr->attr.name, buf);
-
- if (!strcmp(attr->attr.name, "op_timeout_secs")) {
- rc = kstrtoint(buf, 0, &op_timeout_secs);
- goto out;
- } else if (!strcmp(attr->attr.name, "slot_timeout_secs")) {
- rc = kstrtoint(buf, 0, &slot_timeout_secs);
- goto out;
- } else {
- goto out;
- }
-
-out:
- if (rc)
- rc = -EINVAL;
- else
- rc = count;
-
- return rc;
-}
-
-/*
- * obtain attribute values from userspace with a service operation.
- */
-static int sysfs_service_op_show(char *kobj_id, char *buf, void *attr)
-{
- struct orangefs_kernel_op_s *new_op = NULL;
- int rc = 0;
- char *ser_op_type = NULL;
- struct orangefs_attribute *orangefs_attr;
- struct acache_orangefs_attribute *acache_attr;
- struct capcache_orangefs_attribute *capcache_attr;
- struct ccache_orangefs_attribute *ccache_attr;
- struct ncache_orangefs_attribute *ncache_attr;
- struct pc_orangefs_attribute *pc_attr;
- __u32 op_alloc_type;
-
- gossip_debug(GOSSIP_SYSFS_DEBUG,
- "sysfs_service_op_show: id:%s:\n",
- kobj_id);
-
- if (strcmp(kobj_id, PC_KOBJ_ID))
- op_alloc_type = ORANGEFS_VFS_OP_PARAM;
- else
- op_alloc_type = ORANGEFS_VFS_OP_PERF_COUNT;
-
- new_op = op_alloc(op_alloc_type);
- if (!new_op) {
- rc = -ENOMEM;
- goto out;
- }
-
- /* Can't do a service_operation if the client is not running... */
- rc = is_daemon_in_service();
- if (rc) {
- pr_info("%s: Client not running :%d:\n",
- __func__,
- is_daemon_in_service());
- goto out;
- }
-
- if (strcmp(kobj_id, PC_KOBJ_ID))
- new_op->upcall.req.param.type = ORANGEFS_PARAM_REQUEST_GET;
-
- if (!strcmp(kobj_id, ORANGEFS_KOBJ_ID)) {
- orangefs_attr = (struct orangefs_attribute *)attr;
-
- if (!strcmp(orangefs_attr->attr.name, "perf_history_size"))
- new_op->upcall.req.param.op =
- ORANGEFS_PARAM_REQUEST_OP_PERF_HISTORY_SIZE;
- else if (!strcmp(orangefs_attr->attr.name,
- "perf_time_interval_secs"))
- new_op->upcall.req.param.op =
- ORANGEFS_PARAM_REQUEST_OP_PERF_TIME_INTERVAL_SECS;
- else if (!strcmp(orangefs_attr->attr.name,
- "perf_counter_reset"))
- new_op->upcall.req.param.op =
- ORANGEFS_PARAM_REQUEST_OP_PERF_RESET;
-
- } else if (!strcmp(kobj_id, ACACHE_KOBJ_ID)) {
- acache_attr = (struct acache_orangefs_attribute *)attr;
-
- if (!strcmp(acache_attr->attr.name, "timeout_msecs"))
- new_op->upcall.req.param.op =
- ORANGEFS_PARAM_REQUEST_OP_ACACHE_TIMEOUT_MSECS;
-
- if (!strcmp(acache_attr->attr.name, "hard_limit"))
- new_op->upcall.req.param.op =
- ORANGEFS_PARAM_REQUEST_OP_ACACHE_HARD_LIMIT;
-
- if (!strcmp(acache_attr->attr.name, "soft_limit"))
- new_op->upcall.req.param.op =
- ORANGEFS_PARAM_REQUEST_OP_ACACHE_SOFT_LIMIT;
-
- if (!strcmp(acache_attr->attr.name, "reclaim_percentage"))
- new_op->upcall.req.param.op =
- ORANGEFS_PARAM_REQUEST_OP_ACACHE_RECLAIM_PERCENTAGE;
-
- } else if (!strcmp(kobj_id, CAPCACHE_KOBJ_ID)) {
- capcache_attr = (struct capcache_orangefs_attribute *)attr;
-
- if (!strcmp(capcache_attr->attr.name, "timeout_secs"))
- new_op->upcall.req.param.op =
- ORANGEFS_PARAM_REQUEST_OP_CAPCACHE_TIMEOUT_SECS;
-
- if (!strcmp(capcache_attr->attr.name, "hard_limit"))
- new_op->upcall.req.param.op =
- ORANGEFS_PARAM_REQUEST_OP_CAPCACHE_HARD_LIMIT;
-
- if (!strcmp(capcache_attr->attr.name, "soft_limit"))
- new_op->upcall.req.param.op =
- ORANGEFS_PARAM_REQUEST_OP_CAPCACHE_SOFT_LIMIT;
-
- if (!strcmp(capcache_attr->attr.name, "reclaim_percentage"))
- new_op->upcall.req.param.op =
- ORANGEFS_PARAM_REQUEST_OP_CAPCACHE_RECLAIM_PERCENTAGE;
-
- } else if (!strcmp(kobj_id, CCACHE_KOBJ_ID)) {
- ccache_attr = (struct ccache_orangefs_attribute *)attr;
-
- if (!strcmp(ccache_attr->attr.name, "timeout_secs"))
- new_op->upcall.req.param.op =
- ORANGEFS_PARAM_REQUEST_OP_CCACHE_TIMEOUT_SECS;
-
- if (!strcmp(ccache_attr->attr.name, "hard_limit"))
- new_op->upcall.req.param.op =
- ORANGEFS_PARAM_REQUEST_OP_CCACHE_HARD_LIMIT;
-
- if (!strcmp(ccache_attr->attr.name, "soft_limit"))
- new_op->upcall.req.param.op =
- ORANGEFS_PARAM_REQUEST_OP_CCACHE_SOFT_LIMIT;
-
- if (!strcmp(ccache_attr->attr.name, "reclaim_percentage"))
- new_op->upcall.req.param.op =
- ORANGEFS_PARAM_REQUEST_OP_CCACHE_RECLAIM_PERCENTAGE;
-
- } else if (!strcmp(kobj_id, NCACHE_KOBJ_ID)) {
- ncache_attr = (struct ncache_orangefs_attribute *)attr;
-
- if (!strcmp(ncache_attr->attr.name, "timeout_msecs"))
- new_op->upcall.req.param.op =
- ORANGEFS_PARAM_REQUEST_OP_NCACHE_TIMEOUT_MSECS;
-
- if (!strcmp(ncache_attr->attr.name, "hard_limit"))
- new_op->upcall.req.param.op =
- ORANGEFS_PARAM_REQUEST_OP_NCACHE_HARD_LIMIT;
-
- if (!strcmp(ncache_attr->attr.name, "soft_limit"))
- new_op->upcall.req.param.op =
- ORANGEFS_PARAM_REQUEST_OP_NCACHE_SOFT_LIMIT;
-
- if (!strcmp(ncache_attr->attr.name, "reclaim_percentage"))
- new_op->upcall.req.param.op =
- ORANGEFS_PARAM_REQUEST_OP_NCACHE_RECLAIM_PERCENTAGE;
-
- } else if (!strcmp(kobj_id, PC_KOBJ_ID)) {
- pc_attr = (struct pc_orangefs_attribute *)attr;
-
- if (!strcmp(pc_attr->attr.name, ACACHE_KOBJ_ID))
- new_op->upcall.req.perf_count.type =
- ORANGEFS_PERF_COUNT_REQUEST_ACACHE;
-
- if (!strcmp(pc_attr->attr.name, CAPCACHE_KOBJ_ID))
- new_op->upcall.req.perf_count.type =
- ORANGEFS_PERF_COUNT_REQUEST_CAPCACHE;
-
- if (!strcmp(pc_attr->attr.name, NCACHE_KOBJ_ID))
- new_op->upcall.req.perf_count.type =
- ORANGEFS_PERF_COUNT_REQUEST_NCACHE;
-
- } else {
- gossip_err("sysfs_service_op_show: unknown kobj_id:%s:\n",
- kobj_id);
- rc = -EINVAL;
- goto out;
- }
-
-
- if (strcmp(kobj_id, PC_KOBJ_ID))
- ser_op_type = "orangefs_param";
- else
- ser_op_type = "orangefs_perf_count";
-
- /*
- * The service_operation will return an errno return code on
- * error, and zero on success.
- */
- rc = service_operation(new_op, ser_op_type, ORANGEFS_OP_INTERRUPTIBLE);
-
-out:
- if (!rc) {
- if (strcmp(kobj_id, PC_KOBJ_ID)) {
- rc = scnprintf(buf,
- PAGE_SIZE,
- "%d\n",
- (int)new_op->downcall.resp.param.value);
- } else {
- rc = scnprintf(
- buf,
- PAGE_SIZE,
- "%s",
- new_op->downcall.resp.perf_count.buffer);
- }
- }
-
- /*
- * if we got ENOMEM, then op_alloc probably failed...
- */
- if (rc != -ENOMEM)
- op_release(new_op);
-
- return rc;
-
-}
-
-static ssize_t service_orangefs_show(struct orangefs_obj *orangefs_obj,
- struct orangefs_attribute *attr,
- char *buf)
-{
- int rc = 0;
-
- rc = sysfs_service_op_show(ORANGEFS_KOBJ_ID, buf, (void *)attr);
-
- return rc;
-}
-
-static ssize_t
- service_acache_show(struct acache_orangefs_obj *acache_orangefs_obj,
- struct acache_orangefs_attribute *attr,
- char *buf)
-{
- int rc = 0;
-
- rc = sysfs_service_op_show(ACACHE_KOBJ_ID, buf, (void *)attr);
-
- return rc;
-}
-
-static ssize_t service_capcache_show(struct capcache_orangefs_obj
- *capcache_orangefs_obj,
- struct capcache_orangefs_attribute *attr,
- char *buf)
-{
- int rc = 0;
-
- rc = sysfs_service_op_show(CAPCACHE_KOBJ_ID, buf, (void *)attr);
-
- return rc;
-}
-
-static ssize_t service_ccache_show(struct ccache_orangefs_obj
- *ccache_orangefs_obj,
- struct ccache_orangefs_attribute *attr,
- char *buf)
-{
- int rc = 0;
-
- rc = sysfs_service_op_show(CCACHE_KOBJ_ID, buf, (void *)attr);
-
- return rc;
-}
-
-static ssize_t
- service_ncache_show(struct ncache_orangefs_obj *ncache_orangefs_obj,
- struct ncache_orangefs_attribute *attr,
- char *buf)
-{
- int rc = 0;
-
- rc = sysfs_service_op_show(NCACHE_KOBJ_ID, buf, (void *)attr);
-
- return rc;
-}
-
-static ssize_t
- service_pc_show(struct pc_orangefs_obj *pc_orangefs_obj,
- struct pc_orangefs_attribute *attr,
- char *buf)
-{
- int rc = 0;
-
- rc = sysfs_service_op_show(PC_KOBJ_ID, buf, (void *)attr);
-
- return rc;
-}
-
-/*
- * pass attribute values back to userspace with a service operation.
- *
- * We have to do a memory allocation, an sscanf and a service operation.
- * And we have to evaluate what the user entered, to make sure the
- * value is within the range supported by the attribute. So, there's
- * a lot of return code checking and mapping going on here.
- *
- * We want to return 1 if we think everything went OK, and
- * EINVAL if not.
- */
-static int sysfs_service_op_store(char *kobj_id, const char *buf, void *attr)
-{
- struct orangefs_kernel_op_s *new_op = NULL;
- int val = 0;
- int rc = 0;
- struct orangefs_attribute *orangefs_attr;
- struct acache_orangefs_attribute *acache_attr;
- struct capcache_orangefs_attribute *capcache_attr;
- struct ccache_orangefs_attribute *ccache_attr;
- struct ncache_orangefs_attribute *ncache_attr;
-
- gossip_debug(GOSSIP_SYSFS_DEBUG,
- "sysfs_service_op_store: id:%s:\n",
- kobj_id);
-
- new_op = op_alloc(ORANGEFS_VFS_OP_PARAM);
- if (!new_op) {
- rc = -ENOMEM;
- goto out;
- }
-
- /* Can't do a service_operation if the client is not running... */
- rc = is_daemon_in_service();
- if (rc) {
- pr_info("%s: Client not running :%d:\n",
- __func__,
- is_daemon_in_service());
- goto out;
- }
-
- /*
- * The value we want to send back to userspace is in buf.
- */
- rc = kstrtoint(buf, 0, &val);
- if (rc)
- goto out;
-
- if (!strcmp(kobj_id, ORANGEFS_KOBJ_ID)) {
- orangefs_attr = (struct orangefs_attribute *)attr;
-
- if (!strcmp(orangefs_attr->attr.name, "perf_history_size")) {
- if (val > 0) {
- new_op->upcall.req.param.op =
- ORANGEFS_PARAM_REQUEST_OP_PERF_HISTORY_SIZE;
- } else {
- rc = 0;
- goto out;
- }
- } else if (!strcmp(orangefs_attr->attr.name,
- "perf_time_interval_secs")) {
- if (val > 0) {
- new_op->upcall.req.param.op =
- ORANGEFS_PARAM_REQUEST_OP_PERF_TIME_INTERVAL_SECS;
- } else {
- rc = 0;
- goto out;
- }
- } else if (!strcmp(orangefs_attr->attr.name,
- "perf_counter_reset")) {
- if ((val == 0) || (val == 1)) {
- new_op->upcall.req.param.op =
- ORANGEFS_PARAM_REQUEST_OP_PERF_RESET;
- } else {
- rc = 0;
- goto out;
- }
- }
-
- } else if (!strcmp(kobj_id, ACACHE_KOBJ_ID)) {
- acache_attr = (struct acache_orangefs_attribute *)attr;
-
- if (!strcmp(acache_attr->attr.name, "hard_limit")) {
- if (val > -1) {
- new_op->upcall.req.param.op =
- ORANGEFS_PARAM_REQUEST_OP_ACACHE_HARD_LIMIT;
- } else {
- rc = 0;
- goto out;
- }
- } else if (!strcmp(acache_attr->attr.name, "soft_limit")) {
- if (val > -1) {
- new_op->upcall.req.param.op =
- ORANGEFS_PARAM_REQUEST_OP_ACACHE_SOFT_LIMIT;
- } else {
- rc = 0;
- goto out;
- }
- } else if (!strcmp(acache_attr->attr.name,
- "reclaim_percentage")) {
- if ((val > -1) && (val < 101)) {
- new_op->upcall.req.param.op =
- ORANGEFS_PARAM_REQUEST_OP_ACACHE_RECLAIM_PERCENTAGE;
- } else {
- rc = 0;
- goto out;
- }
- } else if (!strcmp(acache_attr->attr.name, "timeout_msecs")) {
- if (val > -1) {
- new_op->upcall.req.param.op =
- ORANGEFS_PARAM_REQUEST_OP_ACACHE_TIMEOUT_MSECS;
- } else {
- rc = 0;
- goto out;
- }
- }
-
- } else if (!strcmp(kobj_id, CAPCACHE_KOBJ_ID)) {
- capcache_attr = (struct capcache_orangefs_attribute *)attr;
-
- if (!strcmp(capcache_attr->attr.name, "hard_limit")) {
- if (val > -1) {
- new_op->upcall.req.param.op =
- ORANGEFS_PARAM_REQUEST_OP_CAPCACHE_HARD_LIMIT;
- } else {
- rc = 0;
- goto out;
- }
- } else if (!strcmp(capcache_attr->attr.name, "soft_limit")) {
- if (val > -1) {
- new_op->upcall.req.param.op =
- ORANGEFS_PARAM_REQUEST_OP_CAPCACHE_SOFT_LIMIT;
- } else {
- rc = 0;
- goto out;
- }
- } else if (!strcmp(capcache_attr->attr.name,
- "reclaim_percentage")) {
- if ((val > -1) && (val < 101)) {
- new_op->upcall.req.param.op =
- ORANGEFS_PARAM_REQUEST_OP_CAPCACHE_RECLAIM_PERCENTAGE;
- } else {
- rc = 0;
- goto out;
- }
- } else if (!strcmp(capcache_attr->attr.name, "timeout_secs")) {
- if (val > -1) {
- new_op->upcall.req.param.op =
- ORANGEFS_PARAM_REQUEST_OP_CAPCACHE_TIMEOUT_SECS;
- } else {
- rc = 0;
- goto out;
- }
- }
-
- } else if (!strcmp(kobj_id, CCACHE_KOBJ_ID)) {
- ccache_attr = (struct ccache_orangefs_attribute *)attr;
-
- if (!strcmp(ccache_attr->attr.name, "hard_limit")) {
- if (val > -1) {
- new_op->upcall.req.param.op =
- ORANGEFS_PARAM_REQUEST_OP_CCACHE_HARD_LIMIT;
- } else {
- rc = 0;
- goto out;
- }
- } else if (!strcmp(ccache_attr->attr.name, "soft_limit")) {
- if (val > -1) {
- new_op->upcall.req.param.op =
- ORANGEFS_PARAM_REQUEST_OP_CCACHE_SOFT_LIMIT;
- } else {
- rc = 0;
- goto out;
- }
- } else if (!strcmp(ccache_attr->attr.name,
- "reclaim_percentage")) {
- if ((val > -1) && (val < 101)) {
- new_op->upcall.req.param.op =
- ORANGEFS_PARAM_REQUEST_OP_CCACHE_RECLAIM_PERCENTAGE;
- } else {
- rc = 0;
- goto out;
- }
- } else if (!strcmp(ccache_attr->attr.name, "timeout_secs")) {
- if (val > -1) {
- new_op->upcall.req.param.op =
- ORANGEFS_PARAM_REQUEST_OP_CCACHE_TIMEOUT_SECS;
- } else {
- rc = 0;
- goto out;
- }
- }
-
- } else if (!strcmp(kobj_id, NCACHE_KOBJ_ID)) {
- ncache_attr = (struct ncache_orangefs_attribute *)attr;
-
- if (!strcmp(ncache_attr->attr.name, "hard_limit")) {
- if (val > -1) {
- new_op->upcall.req.param.op =
- ORANGEFS_PARAM_REQUEST_OP_NCACHE_HARD_LIMIT;
- } else {
- rc = 0;
- goto out;
- }
- } else if (!strcmp(ncache_attr->attr.name, "soft_limit")) {
- if (val > -1) {
- new_op->upcall.req.param.op =
- ORANGEFS_PARAM_REQUEST_OP_NCACHE_SOFT_LIMIT;
- } else {
- rc = 0;
- goto out;
- }
- } else if (!strcmp(ncache_attr->attr.name,
- "reclaim_percentage")) {
- if ((val > -1) && (val < 101)) {
- new_op->upcall.req.param.op =
- ORANGEFS_PARAM_REQUEST_OP_NCACHE_RECLAIM_PERCENTAGE;
- } else {
- rc = 0;
- goto out;
- }
- } else if (!strcmp(ncache_attr->attr.name, "timeout_msecs")) {
- if (val > -1) {
- new_op->upcall.req.param.op =
- ORANGEFS_PARAM_REQUEST_OP_NCACHE_TIMEOUT_MSECS;
- } else {
- rc = 0;
- goto out;
- }
- }
-
- } else {
- gossip_err("sysfs_service_op_store: unknown kobj_id:%s:\n",
- kobj_id);
- rc = -EINVAL;
- goto out;
- }
-
- new_op->upcall.req.param.type = ORANGEFS_PARAM_REQUEST_SET;
-
- new_op->upcall.req.param.value = val;
-
- /*
- * The service_operation will return a errno return code on
- * error, and zero on success.
- */
- rc = service_operation(new_op, "orangefs_param", ORANGEFS_OP_INTERRUPTIBLE);
-
- if (rc < 0) {
- gossip_err("sysfs_service_op_store: service op returned:%d:\n",
- rc);
- rc = 0;
- } else {
- rc = 1;
- }
-
-out:
- /*
- * if we got ENOMEM, then op_alloc probably failed...
- */
- if (rc == -ENOMEM)
- rc = 0;
- else
- op_release(new_op);
-
- if (rc == 0)
- rc = -EINVAL;
-
- return rc;
-}
-
-static ssize_t
- service_orangefs_store(struct orangefs_obj *orangefs_obj,
- struct orangefs_attribute *attr,
- const char *buf,
- size_t count)
-{
- int rc = 0;
-
- rc = sysfs_service_op_store(ORANGEFS_KOBJ_ID, buf, (void *) attr);
-
- /* rc should have an errno value if the service_op went bad. */
- if (rc == 1)
- rc = count;
-
- return rc;
-}
-
-static ssize_t
- service_acache_store(struct acache_orangefs_obj *acache_orangefs_obj,
- struct acache_orangefs_attribute *attr,
- const char *buf,
- size_t count)
-{
- int rc = 0;
-
- rc = sysfs_service_op_store(ACACHE_KOBJ_ID, buf, (void *) attr);
-
- /* rc should have an errno value if the service_op went bad. */
- if (rc == 1)
- rc = count;
-
- return rc;
-}
-
-static ssize_t
- service_capcache_store(struct capcache_orangefs_obj
- *capcache_orangefs_obj,
- struct capcache_orangefs_attribute *attr,
- const char *buf,
- size_t count)
-{
- int rc = 0;
-
- rc = sysfs_service_op_store(CAPCACHE_KOBJ_ID, buf, (void *) attr);
-
- /* rc should have an errno value if the service_op went bad. */
- if (rc == 1)
- rc = count;
-
- return rc;
-}
-
-static ssize_t service_ccache_store(struct ccache_orangefs_obj
- *ccache_orangefs_obj,
- struct ccache_orangefs_attribute *attr,
- const char *buf,
- size_t count)
-{
- int rc = 0;
-
- rc = sysfs_service_op_store(CCACHE_KOBJ_ID, buf, (void *) attr);
-
- /* rc should have an errno value if the service_op went bad. */
- if (rc == 1)
- rc = count;
-
- return rc;
-}
-
-static ssize_t
- service_ncache_store(struct ncache_orangefs_obj *ncache_orangefs_obj,
- struct ncache_orangefs_attribute *attr,
- const char *buf,
- size_t count)
-{
- int rc = 0;
-
- rc = sysfs_service_op_store(NCACHE_KOBJ_ID, buf, (void *) attr);
-
- /* rc should have an errno value if the service_op went bad. */
- if (rc == 1)
- rc = count;
-
- return rc;
-}
-
-static struct orangefs_attribute op_timeout_secs_attribute =
- __ATTR(op_timeout_secs, 0664, int_orangefs_show, int_store);
-
-static struct orangefs_attribute slot_timeout_secs_attribute =
- __ATTR(slot_timeout_secs, 0664, int_orangefs_show, int_store);
-
-static struct orangefs_attribute perf_counter_reset_attribute =
- __ATTR(perf_counter_reset,
- 0664,
- service_orangefs_show,
- service_orangefs_store);
-
-static struct orangefs_attribute perf_history_size_attribute =
- __ATTR(perf_history_size,
- 0664,
- service_orangefs_show,
- service_orangefs_store);
-
-static struct orangefs_attribute perf_time_interval_secs_attribute =
- __ATTR(perf_time_interval_secs,
- 0664,
- service_orangefs_show,
- service_orangefs_store);
-
-static struct attribute *orangefs_default_attrs[] = {
- &op_timeout_secs_attribute.attr,
- &slot_timeout_secs_attribute.attr,
- &perf_counter_reset_attribute.attr,
- &perf_history_size_attribute.attr,
- &perf_time_interval_secs_attribute.attr,
- NULL,
-};
-
-static struct kobj_type orangefs_ktype = {
- .sysfs_ops = &orangefs_sysfs_ops,
- .release = orangefs_release,
- .default_attrs = orangefs_default_attrs,
-};
-
-static struct acache_orangefs_attribute acache_hard_limit_attribute =
- __ATTR(hard_limit,
- 0664,
- service_acache_show,
- service_acache_store);
-
-static struct acache_orangefs_attribute acache_reclaim_percent_attribute =
- __ATTR(reclaim_percentage,
- 0664,
- service_acache_show,
- service_acache_store);
-
-static struct acache_orangefs_attribute acache_soft_limit_attribute =
- __ATTR(soft_limit,
- 0664,
- service_acache_show,
- service_acache_store);
-
-static struct acache_orangefs_attribute acache_timeout_msecs_attribute =
- __ATTR(timeout_msecs,
- 0664,
- service_acache_show,
- service_acache_store);
-
-static struct attribute *acache_orangefs_default_attrs[] = {
- &acache_hard_limit_attribute.attr,
- &acache_reclaim_percent_attribute.attr,
- &acache_soft_limit_attribute.attr,
- &acache_timeout_msecs_attribute.attr,
- NULL,
-};
-
-static struct kobj_type acache_orangefs_ktype = {
- .sysfs_ops = &acache_orangefs_sysfs_ops,
- .release = acache_orangefs_release,
- .default_attrs = acache_orangefs_default_attrs,
-};
-
-static struct capcache_orangefs_attribute capcache_hard_limit_attribute =
- __ATTR(hard_limit,
- 0664,
- service_capcache_show,
- service_capcache_store);
-
-static struct capcache_orangefs_attribute capcache_reclaim_percent_attribute =
- __ATTR(reclaim_percentage,
- 0664,
- service_capcache_show,
- service_capcache_store);
-
-static struct capcache_orangefs_attribute capcache_soft_limit_attribute =
- __ATTR(soft_limit,
- 0664,
- service_capcache_show,
- service_capcache_store);
-
-static struct capcache_orangefs_attribute capcache_timeout_secs_attribute =
- __ATTR(timeout_secs,
- 0664,
- service_capcache_show,
- service_capcache_store);
-
-static struct attribute *capcache_orangefs_default_attrs[] = {
- &capcache_hard_limit_attribute.attr,
- &capcache_reclaim_percent_attribute.attr,
- &capcache_soft_limit_attribute.attr,
- &capcache_timeout_secs_attribute.attr,
- NULL,
-};
-
-static struct kobj_type capcache_orangefs_ktype = {
- .sysfs_ops = &capcache_orangefs_sysfs_ops,
- .release = capcache_orangefs_release,
- .default_attrs = capcache_orangefs_default_attrs,
-};
-
-static struct ccache_orangefs_attribute ccache_hard_limit_attribute =
- __ATTR(hard_limit,
- 0664,
- service_ccache_show,
- service_ccache_store);
-
-static struct ccache_orangefs_attribute ccache_reclaim_percent_attribute =
- __ATTR(reclaim_percentage,
- 0664,
- service_ccache_show,
- service_ccache_store);
-
-static struct ccache_orangefs_attribute ccache_soft_limit_attribute =
- __ATTR(soft_limit,
- 0664,
- service_ccache_show,
- service_ccache_store);
-
-static struct ccache_orangefs_attribute ccache_timeout_secs_attribute =
- __ATTR(timeout_secs,
- 0664,
- service_ccache_show,
- service_ccache_store);
-
-static struct attribute *ccache_orangefs_default_attrs[] = {
- &ccache_hard_limit_attribute.attr,
- &ccache_reclaim_percent_attribute.attr,
- &ccache_soft_limit_attribute.attr,
- &ccache_timeout_secs_attribute.attr,
- NULL,
-};
-
-static struct kobj_type ccache_orangefs_ktype = {
- .sysfs_ops = &ccache_orangefs_sysfs_ops,
- .release = ccache_orangefs_release,
- .default_attrs = ccache_orangefs_default_attrs,
-};
-
-static struct ncache_orangefs_attribute ncache_hard_limit_attribute =
- __ATTR(hard_limit,
- 0664,
- service_ncache_show,
- service_ncache_store);
-
-static struct ncache_orangefs_attribute ncache_reclaim_percent_attribute =
- __ATTR(reclaim_percentage,
- 0664,
- service_ncache_show,
- service_ncache_store);
-
-static struct ncache_orangefs_attribute ncache_soft_limit_attribute =
- __ATTR(soft_limit,
- 0664,
- service_ncache_show,
- service_ncache_store);
-
-static struct ncache_orangefs_attribute ncache_timeout_msecs_attribute =
- __ATTR(timeout_msecs,
- 0664,
- service_ncache_show,
- service_ncache_store);
-
-static struct attribute *ncache_orangefs_default_attrs[] = {
- &ncache_hard_limit_attribute.attr,
- &ncache_reclaim_percent_attribute.attr,
- &ncache_soft_limit_attribute.attr,
- &ncache_timeout_msecs_attribute.attr,
- NULL,
-};
-
-static struct kobj_type ncache_orangefs_ktype = {
- .sysfs_ops = &ncache_orangefs_sysfs_ops,
- .release = ncache_orangefs_release,
- .default_attrs = ncache_orangefs_default_attrs,
-};
-
-static struct pc_orangefs_attribute pc_acache_attribute =
- __ATTR(acache,
- 0664,
- service_pc_show,
- NULL);
-
-static struct pc_orangefs_attribute pc_capcache_attribute =
- __ATTR(capcache,
- 0664,
- service_pc_show,
- NULL);
-
-static struct pc_orangefs_attribute pc_ncache_attribute =
- __ATTR(ncache,
- 0664,
- service_pc_show,
- NULL);
-
-static struct attribute *pc_orangefs_default_attrs[] = {
- &pc_acache_attribute.attr,
- &pc_capcache_attribute.attr,
- &pc_ncache_attribute.attr,
- NULL,
-};
-
-static struct kobj_type pc_orangefs_ktype = {
- .sysfs_ops = &pc_orangefs_sysfs_ops,
- .release = pc_orangefs_release,
- .default_attrs = pc_orangefs_default_attrs,
-};
-
-static struct stats_orangefs_attribute stats_reads_attribute =
- __ATTR(reads,
- 0664,
- int_stats_show,
- NULL);
-
-static struct stats_orangefs_attribute stats_writes_attribute =
- __ATTR(writes,
- 0664,
- int_stats_show,
- NULL);
-
-static struct attribute *stats_orangefs_default_attrs[] = {
- &stats_reads_attribute.attr,
- &stats_writes_attribute.attr,
- NULL,
-};
-
-static struct kobj_type stats_orangefs_ktype = {
- .sysfs_ops = &stats_orangefs_sysfs_ops,
- .release = stats_orangefs_release,
- .default_attrs = stats_orangefs_default_attrs,
-};
-
-static struct orangefs_obj *orangefs_obj;
-static struct acache_orangefs_obj *acache_orangefs_obj;
-static struct capcache_orangefs_obj *capcache_orangefs_obj;
-static struct ccache_orangefs_obj *ccache_orangefs_obj;
-static struct ncache_orangefs_obj *ncache_orangefs_obj;
-static struct pc_orangefs_obj *pc_orangefs_obj;
-static struct stats_orangefs_obj *stats_orangefs_obj;
-
-int orangefs_sysfs_init(void)
-{
- int rc;
-
- gossip_debug(GOSSIP_SYSFS_DEBUG, "orangefs_sysfs_init: start\n");
-
- /* create /sys/fs/orangefs. */
- orangefs_obj = kzalloc(sizeof(*orangefs_obj), GFP_KERNEL);
- if (!orangefs_obj) {
- rc = -EINVAL;
- goto out;
- }
-
- rc = kobject_init_and_add(&orangefs_obj->kobj,
- &orangefs_ktype,
- fs_kobj,
- ORANGEFS_KOBJ_ID);
-
- if (rc) {
- kobject_put(&orangefs_obj->kobj);
- rc = -EINVAL;
- goto out;
- }
-
- kobject_uevent(&orangefs_obj->kobj, KOBJ_ADD);
-
- /* create /sys/fs/orangefs/acache. */
- acache_orangefs_obj = kzalloc(sizeof(*acache_orangefs_obj), GFP_KERNEL);
- if (!acache_orangefs_obj) {
- rc = -EINVAL;
- goto out;
- }
-
- rc = kobject_init_and_add(&acache_orangefs_obj->kobj,
- &acache_orangefs_ktype,
- &orangefs_obj->kobj,
- ACACHE_KOBJ_ID);
-
- if (rc) {
- kobject_put(&acache_orangefs_obj->kobj);
- rc = -EINVAL;
- goto out;
- }
-
- kobject_uevent(&acache_orangefs_obj->kobj, KOBJ_ADD);
-
- /* create /sys/fs/orangefs/capcache. */
- capcache_orangefs_obj =
- kzalloc(sizeof(*capcache_orangefs_obj), GFP_KERNEL);
- if (!capcache_orangefs_obj) {
- rc = -EINVAL;
- goto out;
- }
-
- rc = kobject_init_and_add(&capcache_orangefs_obj->kobj,
- &capcache_orangefs_ktype,
- &orangefs_obj->kobj,
- CAPCACHE_KOBJ_ID);
- if (rc) {
- kobject_put(&capcache_orangefs_obj->kobj);
- rc = -EINVAL;
- goto out;
- }
-
- kobject_uevent(&capcache_orangefs_obj->kobj, KOBJ_ADD);
-
- /* create /sys/fs/orangefs/ccache. */
- ccache_orangefs_obj =
- kzalloc(sizeof(*ccache_orangefs_obj), GFP_KERNEL);
- if (!ccache_orangefs_obj) {
- rc = -EINVAL;
- goto out;
- }
-
- rc = kobject_init_and_add(&ccache_orangefs_obj->kobj,
- &ccache_orangefs_ktype,
- &orangefs_obj->kobj,
- CCACHE_KOBJ_ID);
- if (rc) {
- kobject_put(&ccache_orangefs_obj->kobj);
- rc = -EINVAL;
- goto out;
- }
-
- kobject_uevent(&ccache_orangefs_obj->kobj, KOBJ_ADD);
-
- /* create /sys/fs/orangefs/ncache. */
- ncache_orangefs_obj = kzalloc(sizeof(*ncache_orangefs_obj), GFP_KERNEL);
- if (!ncache_orangefs_obj) {
- rc = -EINVAL;
- goto out;
- }
-
- rc = kobject_init_and_add(&ncache_orangefs_obj->kobj,
- &ncache_orangefs_ktype,
- &orangefs_obj->kobj,
- NCACHE_KOBJ_ID);
-
- if (rc) {
- kobject_put(&ncache_orangefs_obj->kobj);
- rc = -EINVAL;
- goto out;
- }
-
- kobject_uevent(&ncache_orangefs_obj->kobj, KOBJ_ADD);
-
- /* create /sys/fs/orangefs/perf_counters. */
- pc_orangefs_obj = kzalloc(sizeof(*pc_orangefs_obj), GFP_KERNEL);
- if (!pc_orangefs_obj) {
- rc = -EINVAL;
- goto out;
- }
-
- rc = kobject_init_and_add(&pc_orangefs_obj->kobj,
- &pc_orangefs_ktype,
- &orangefs_obj->kobj,
- "perf_counters");
-
- if (rc) {
- kobject_put(&pc_orangefs_obj->kobj);
- rc = -EINVAL;
- goto out;
- }
-
- kobject_uevent(&pc_orangefs_obj->kobj, KOBJ_ADD);
-
- /* create /sys/fs/orangefs/stats. */
- stats_orangefs_obj = kzalloc(sizeof(*stats_orangefs_obj), GFP_KERNEL);
- if (!stats_orangefs_obj) {
- rc = -EINVAL;
- goto out;
- }
-
- rc = kobject_init_and_add(&stats_orangefs_obj->kobj,
- &stats_orangefs_ktype,
- &orangefs_obj->kobj,
- STATS_KOBJ_ID);
-
- if (rc) {
- kobject_put(&stats_orangefs_obj->kobj);
- rc = -EINVAL;
- goto out;
- }
-
- kobject_uevent(&stats_orangefs_obj->kobj, KOBJ_ADD);
-out:
- return rc;
-}
-
-void orangefs_sysfs_exit(void)
-{
- gossip_debug(GOSSIP_SYSFS_DEBUG, "orangefs_sysfs_exit: start\n");
-
- kobject_put(&acache_orangefs_obj->kobj);
- kobject_put(&capcache_orangefs_obj->kobj);
- kobject_put(&ccache_orangefs_obj->kobj);
- kobject_put(&ncache_orangefs_obj->kobj);
- kobject_put(&pc_orangefs_obj->kobj);
- kobject_put(&stats_orangefs_obj->kobj);
-
- kobject_put(&orangefs_obj->kobj);
-}
+++ /dev/null
-extern int orangefs_sysfs_init(void);
-extern void orangefs_sysfs_exit(void);
+++ /dev/null
-/*
- * (C) 2001 Clemson University and The University of Chicago
- *
- * See COPYING in top-level directory.
- */
-#include "protocol.h"
-#include "pvfs2-kernel.h"
-#include "pvfs2-dev-proto.h"
-#include "pvfs2-bufmap.h"
-
-__s32 fsid_of_op(struct orangefs_kernel_op_s *op)
-{
- __s32 fsid = ORANGEFS_FS_ID_NULL;
-
- if (op) {
- switch (op->upcall.type) {
- case ORANGEFS_VFS_OP_FILE_IO:
- fsid = op->upcall.req.io.refn.fs_id;
- break;
- case ORANGEFS_VFS_OP_LOOKUP:
- fsid = op->upcall.req.lookup.parent_refn.fs_id;
- break;
- case ORANGEFS_VFS_OP_CREATE:
- fsid = op->upcall.req.create.parent_refn.fs_id;
- break;
- case ORANGEFS_VFS_OP_GETATTR:
- fsid = op->upcall.req.getattr.refn.fs_id;
- break;
- case ORANGEFS_VFS_OP_REMOVE:
- fsid = op->upcall.req.remove.parent_refn.fs_id;
- break;
- case ORANGEFS_VFS_OP_MKDIR:
- fsid = op->upcall.req.mkdir.parent_refn.fs_id;
- break;
- case ORANGEFS_VFS_OP_READDIR:
- fsid = op->upcall.req.readdir.refn.fs_id;
- break;
- case ORANGEFS_VFS_OP_SETATTR:
- fsid = op->upcall.req.setattr.refn.fs_id;
- break;
- case ORANGEFS_VFS_OP_SYMLINK:
- fsid = op->upcall.req.sym.parent_refn.fs_id;
- break;
- case ORANGEFS_VFS_OP_RENAME:
- fsid = op->upcall.req.rename.old_parent_refn.fs_id;
- break;
- case ORANGEFS_VFS_OP_STATFS:
- fsid = op->upcall.req.statfs.fs_id;
- break;
- case ORANGEFS_VFS_OP_TRUNCATE:
- fsid = op->upcall.req.truncate.refn.fs_id;
- break;
- case ORANGEFS_VFS_OP_MMAP_RA_FLUSH:
- fsid = op->upcall.req.ra_cache_flush.refn.fs_id;
- break;
- case ORANGEFS_VFS_OP_FS_UMOUNT:
- fsid = op->upcall.req.fs_umount.fs_id;
- break;
- case ORANGEFS_VFS_OP_GETXATTR:
- fsid = op->upcall.req.getxattr.refn.fs_id;
- break;
- case ORANGEFS_VFS_OP_SETXATTR:
- fsid = op->upcall.req.setxattr.refn.fs_id;
- break;
- case ORANGEFS_VFS_OP_LISTXATTR:
- fsid = op->upcall.req.listxattr.refn.fs_id;
- break;
- case ORANGEFS_VFS_OP_REMOVEXATTR:
- fsid = op->upcall.req.removexattr.refn.fs_id;
- break;
- case ORANGEFS_VFS_OP_FSYNC:
- fsid = op->upcall.req.fsync.refn.fs_id;
- break;
- default:
- break;
- }
- }
- return fsid;
-}
-
-static void orangefs_set_inode_flags(struct inode *inode,
- struct ORANGEFS_sys_attr_s *attrs)
-{
- if (attrs->flags & ORANGEFS_IMMUTABLE_FL)
- inode->i_flags |= S_IMMUTABLE;
- else
- inode->i_flags &= ~S_IMMUTABLE;
-
- if (attrs->flags & ORANGEFS_APPEND_FL)
- inode->i_flags |= S_APPEND;
- else
- inode->i_flags &= ~S_APPEND;
-
- if (attrs->flags & ORANGEFS_NOATIME_FL)
- inode->i_flags |= S_NOATIME;
- else
- inode->i_flags &= ~S_NOATIME;
-
-}
-
-/* NOTE: symname is ignored unless the inode is a sym link */
-static int copy_attributes_to_inode(struct inode *inode,
- struct ORANGEFS_sys_attr_s *attrs,
- char *symname)
-{
- int ret = -1;
- int perm_mode = 0;
- struct orangefs_inode_s *orangefs_inode = ORANGEFS_I(inode);
- loff_t inode_size = 0;
- loff_t rounded_up_size = 0;
-
-
- /*
- * arbitrarily set the inode block size; FIXME: we need to
- * resolve the difference between the reported inode blocksize
- * and the PAGE_CACHE_SIZE, since our block count will always
- * be wrong.
- *
- * For now, we're setting the block count to be the proper
- * number assuming the block size is 512 bytes, and the size is
- * rounded up to the nearest 4K. This is apparently required
- * to get proper size reports from the 'du' shell utility.
- *
- * changing the inode->i_blkbits to something other than
- * PAGE_CACHE_SHIFT breaks mmap/execution as we depend on that.
- */
- gossip_debug(GOSSIP_UTILS_DEBUG,
- "attrs->mask = %x (objtype = %s)\n",
- attrs->mask,
- attrs->objtype == ORANGEFS_TYPE_METAFILE ? "file" :
- attrs->objtype == ORANGEFS_TYPE_DIRECTORY ? "directory" :
- attrs->objtype == ORANGEFS_TYPE_SYMLINK ? "symlink" :
- "invalid/unknown");
-
- switch (attrs->objtype) {
- case ORANGEFS_TYPE_METAFILE:
- orangefs_set_inode_flags(inode, attrs);
- if (attrs->mask & ORANGEFS_ATTR_SYS_SIZE) {
- inode_size = (loff_t) attrs->size;
- rounded_up_size =
- (inode_size + (4096 - (inode_size % 4096)));
-
- orangefs_lock_inode(inode);
- inode->i_bytes = inode_size;
- inode->i_blocks =
- (unsigned long)(rounded_up_size / 512);
- orangefs_unlock_inode(inode);
-
- /*
- * NOTE: make sure all the places we're called
- * from have the inode->i_sem lock. We're fine
- * in 99% of the cases since we're mostly
- * called from a lookup.
- */
- inode->i_size = inode_size;
- }
- break;
- case ORANGEFS_TYPE_SYMLINK:
- if (symname != NULL) {
- inode->i_size = (loff_t) strlen(symname);
- break;
- }
- /*FALLTHRU*/
- default:
- inode->i_size = PAGE_CACHE_SIZE;
-
- orangefs_lock_inode(inode);
- inode_set_bytes(inode, inode->i_size);
- orangefs_unlock_inode(inode);
- break;
- }
-
- inode->i_uid = make_kuid(&init_user_ns, attrs->owner);
- inode->i_gid = make_kgid(&init_user_ns, attrs->group);
- inode->i_atime.tv_sec = (time_t) attrs->atime;
- inode->i_mtime.tv_sec = (time_t) attrs->mtime;
- inode->i_ctime.tv_sec = (time_t) attrs->ctime;
- inode->i_atime.tv_nsec = 0;
- inode->i_mtime.tv_nsec = 0;
- inode->i_ctime.tv_nsec = 0;
-
- if (attrs->perms & ORANGEFS_O_EXECUTE)
- perm_mode |= S_IXOTH;
- if (attrs->perms & ORANGEFS_O_WRITE)
- perm_mode |= S_IWOTH;
- if (attrs->perms & ORANGEFS_O_READ)
- perm_mode |= S_IROTH;
-
- if (attrs->perms & ORANGEFS_G_EXECUTE)
- perm_mode |= S_IXGRP;
- if (attrs->perms & ORANGEFS_G_WRITE)
- perm_mode |= S_IWGRP;
- if (attrs->perms & ORANGEFS_G_READ)
- perm_mode |= S_IRGRP;
-
- if (attrs->perms & ORANGEFS_U_EXECUTE)
- perm_mode |= S_IXUSR;
- if (attrs->perms & ORANGEFS_U_WRITE)
- perm_mode |= S_IWUSR;
- if (attrs->perms & ORANGEFS_U_READ)
- perm_mode |= S_IRUSR;
-
- if (attrs->perms & ORANGEFS_G_SGID)
- perm_mode |= S_ISGID;
- if (attrs->perms & ORANGEFS_U_SUID)
- perm_mode |= S_ISUID;
-
- inode->i_mode = perm_mode;
-
- if (is_root_handle(inode)) {
- /* special case: mark the root inode as sticky */
- inode->i_mode |= S_ISVTX;
- gossip_debug(GOSSIP_UTILS_DEBUG,
- "Marking inode %pU as sticky\n",
- get_khandle_from_ino(inode));
- }
-
- switch (attrs->objtype) {
- case ORANGEFS_TYPE_METAFILE:
- inode->i_mode |= S_IFREG;
- ret = 0;
- break;
- case ORANGEFS_TYPE_DIRECTORY:
- inode->i_mode |= S_IFDIR;
- /* NOTE: we have no good way to keep nlink consistent
- * for directories across clients; keep constant at 1.
- * Why 1? If we go with 2, then find(1) gets confused
- * and won't work properly withouth the -noleaf option
- */
- set_nlink(inode, 1);
- ret = 0;
- break;
- case ORANGEFS_TYPE_SYMLINK:
- inode->i_mode |= S_IFLNK;
-
- /* copy link target to inode private data */
- if (orangefs_inode && symname) {
- strncpy(orangefs_inode->link_target,
- symname,
- ORANGEFS_NAME_MAX);
- gossip_debug(GOSSIP_UTILS_DEBUG,
- "Copied attr link target %s\n",
- orangefs_inode->link_target);
- }
- gossip_debug(GOSSIP_UTILS_DEBUG,
- "symlink mode %o\n",
- inode->i_mode);
- ret = 0;
- break;
- default:
- gossip_err("orangefs: copy_attributes_to_inode: got invalid attribute type %x\n",
- attrs->objtype);
- }
-
- gossip_debug(GOSSIP_UTILS_DEBUG,
- "orangefs: copy_attributes_to_inode: setting i_mode to %o, i_size to %lu\n",
- inode->i_mode,
- (unsigned long)i_size_read(inode));
-
- return ret;
-}
-
-/*
- * NOTE: in kernel land, we never use the sys_attr->link_target for
- * anything, so don't bother copying it into the sys_attr object here.
- */
-static inline int copy_attributes_from_inode(struct inode *inode,
- struct ORANGEFS_sys_attr_s *attrs,
- struct iattr *iattr)
-{
- umode_t tmp_mode;
-
- if (!iattr || !inode || !attrs) {
- gossip_err("NULL iattr (%p), inode (%p), attrs (%p) "
- "in copy_attributes_from_inode!\n",
- iattr,
- inode,
- attrs);
- return -EINVAL;
- }
- /*
- * We need to be careful to only copy the attributes out of the
- * iattr object that we know are valid.
- */
- attrs->mask = 0;
- if (iattr->ia_valid & ATTR_UID) {
- attrs->owner = from_kuid(current_user_ns(), iattr->ia_uid);
- attrs->mask |= ORANGEFS_ATTR_SYS_UID;
- gossip_debug(GOSSIP_UTILS_DEBUG, "(UID) %d\n", attrs->owner);
- }
- if (iattr->ia_valid & ATTR_GID) {
- attrs->group = from_kgid(current_user_ns(), iattr->ia_gid);
- attrs->mask |= ORANGEFS_ATTR_SYS_GID;
- gossip_debug(GOSSIP_UTILS_DEBUG, "(GID) %d\n", attrs->group);
- }
-
- if (iattr->ia_valid & ATTR_ATIME) {
- attrs->mask |= ORANGEFS_ATTR_SYS_ATIME;
- if (iattr->ia_valid & ATTR_ATIME_SET) {
- attrs->atime =
- orangefs_convert_time_field(&iattr->ia_atime);
- attrs->mask |= ORANGEFS_ATTR_SYS_ATIME_SET;
- }
- }
- if (iattr->ia_valid & ATTR_MTIME) {
- attrs->mask |= ORANGEFS_ATTR_SYS_MTIME;
- if (iattr->ia_valid & ATTR_MTIME_SET) {
- attrs->mtime =
- orangefs_convert_time_field(&iattr->ia_mtime);
- attrs->mask |= ORANGEFS_ATTR_SYS_MTIME_SET;
- }
- }
- if (iattr->ia_valid & ATTR_CTIME)
- attrs->mask |= ORANGEFS_ATTR_SYS_CTIME;
-
- /*
- * ORANGEFS cannot set size with a setattr operation. Probably not likely
- * to be requested through the VFS, but just in case, don't worry about
- * ATTR_SIZE
- */
-
- if (iattr->ia_valid & ATTR_MODE) {
- tmp_mode = iattr->ia_mode;
- if (tmp_mode & (S_ISVTX)) {
- if (is_root_handle(inode)) {
- /*
- * allow sticky bit to be set on root (since
- * it shows up that way by default anyhow),
- * but don't show it to the server
- */
- tmp_mode -= S_ISVTX;
- } else {
- gossip_debug(GOSSIP_UTILS_DEBUG,
- "User attempted to set sticky bit on non-root directory; returning EINVAL.\n");
- return -EINVAL;
- }
- }
-
- if (tmp_mode & (S_ISUID)) {
- gossip_debug(GOSSIP_UTILS_DEBUG,
- "Attempting to set setuid bit (not supported); returning EINVAL.\n");
- return -EINVAL;
- }
-
- attrs->perms = ORANGEFS_util_translate_mode(tmp_mode);
- attrs->mask |= ORANGEFS_ATTR_SYS_PERM;
- }
-
- return 0;
-}
-
-/*
- * issues a orangefs getattr request and fills in the appropriate inode
- * attributes if successful. returns 0 on success; -errno otherwise
- */
-int orangefs_inode_getattr(struct inode *inode, __u32 getattr_mask)
-{
- struct orangefs_inode_s *orangefs_inode = ORANGEFS_I(inode);
- struct orangefs_kernel_op_s *new_op;
- int ret = -EINVAL;
-
- gossip_debug(GOSSIP_UTILS_DEBUG,
- "%s: called on inode %pU\n",
- __func__,
- get_khandle_from_ino(inode));
-
- new_op = op_alloc(ORANGEFS_VFS_OP_GETATTR);
- if (!new_op)
- return -ENOMEM;
- new_op->upcall.req.getattr.refn = orangefs_inode->refn;
- new_op->upcall.req.getattr.mask = getattr_mask;
-
- ret = service_operation(new_op, __func__,
- get_interruptible_flag(inode));
- if (ret != 0)
- goto out;
-
- if (copy_attributes_to_inode(inode,
- &new_op->downcall.resp.getattr.attributes,
- new_op->downcall.resp.getattr.link_target)) {
- gossip_err("%s: failed to copy attributes\n", __func__);
- ret = -ENOENT;
- goto out;
- }
-
- /*
- * Store blksize in orangefs specific part of inode structure; we are
- * only going to use this to report to stat to make sure it doesn't
- * perturb any inode related code paths.
- */
- if (new_op->downcall.resp.getattr.attributes.objtype ==
- ORANGEFS_TYPE_METAFILE) {
- orangefs_inode->blksize =
- new_op->downcall.resp.getattr.attributes.blksize;
- } else {
- /* mimic behavior of generic_fillattr() for other types. */
- orangefs_inode->blksize = (1 << inode->i_blkbits);
-
- }
-
-out:
- gossip_debug(GOSSIP_UTILS_DEBUG,
- "Getattr on handle %pU, "
- "fsid %d\n (inode ct = %d) returned %d\n",
- &orangefs_inode->refn.khandle,
- orangefs_inode->refn.fs_id,
- (int)atomic_read(&inode->i_count),
- ret);
-
- op_release(new_op);
- return ret;
-}
-
-/*
- * issues a orangefs setattr request to make sure the new attribute values
- * take effect if successful. returns 0 on success; -errno otherwise
- */
-int orangefs_inode_setattr(struct inode *inode, struct iattr *iattr)
-{
- struct orangefs_inode_s *orangefs_inode = ORANGEFS_I(inode);
- struct orangefs_kernel_op_s *new_op;
- int ret;
-
- new_op = op_alloc(ORANGEFS_VFS_OP_SETATTR);
- if (!new_op)
- return -ENOMEM;
-
- new_op->upcall.req.setattr.refn = orangefs_inode->refn;
- ret = copy_attributes_from_inode(inode,
- &new_op->upcall.req.setattr.attributes,
- iattr);
- if (ret < 0) {
- op_release(new_op);
- return ret;
- }
-
- ret = service_operation(new_op, __func__,
- get_interruptible_flag(inode));
-
- gossip_debug(GOSSIP_UTILS_DEBUG,
- "orangefs_inode_setattr: returning %d\n",
- ret);
-
- /* when request is serviced properly, free req op struct */
- op_release(new_op);
-
- /*
- * successful setattr should clear the atime, mtime and
- * ctime flags.
- */
- if (ret == 0) {
- ClearAtimeFlag(orangefs_inode);
- ClearMtimeFlag(orangefs_inode);
- ClearCtimeFlag(orangefs_inode);
- ClearModeFlag(orangefs_inode);
- }
-
- return ret;
-}
-
-int orangefs_flush_inode(struct inode *inode)
-{
- /*
- * If it is a dirty inode, this function gets called.
- * Gather all the information that needs to be setattr'ed
- * Right now, this will only be used for mode, atime, mtime
- * and/or ctime.
- */
- struct iattr wbattr;
- int ret;
- int mtime_flag;
- int ctime_flag;
- int atime_flag;
- int mode_flag;
- struct orangefs_inode_s *orangefs_inode = ORANGEFS_I(inode);
-
- memset(&wbattr, 0, sizeof(wbattr));
-
- /*
- * check inode flags up front, and clear them if they are set. This
- * will prevent multiple processes from all trying to flush the same
- * inode if they call close() simultaneously
- */
- mtime_flag = MtimeFlag(orangefs_inode);
- ClearMtimeFlag(orangefs_inode);
- ctime_flag = CtimeFlag(orangefs_inode);
- ClearCtimeFlag(orangefs_inode);
- atime_flag = AtimeFlag(orangefs_inode);
- ClearAtimeFlag(orangefs_inode);
- mode_flag = ModeFlag(orangefs_inode);
- ClearModeFlag(orangefs_inode);
-
- /* -- Lazy atime,mtime and ctime update --
- * Note: all times are dictated by server in the new scheme
- * and not by the clients
- *
- * Also mode updates are being handled now..
- */
-
- if (mtime_flag)
- wbattr.ia_valid |= ATTR_MTIME;
- if (ctime_flag)
- wbattr.ia_valid |= ATTR_CTIME;
- if (atime_flag)
- wbattr.ia_valid |= ATTR_ATIME;
-
- if (mode_flag) {
- wbattr.ia_mode = inode->i_mode;
- wbattr.ia_valid |= ATTR_MODE;
- }
-
- gossip_debug(GOSSIP_UTILS_DEBUG,
- "*********** orangefs_flush_inode: %pU "
- "(ia_valid %d)\n",
- get_khandle_from_ino(inode),
- wbattr.ia_valid);
- if (wbattr.ia_valid == 0) {
- gossip_debug(GOSSIP_UTILS_DEBUG,
- "orangefs_flush_inode skipping setattr()\n");
- return 0;
- }
-
- gossip_debug(GOSSIP_UTILS_DEBUG,
- "orangefs_flush_inode (%pU) writing mode %o\n",
- get_khandle_from_ino(inode),
- inode->i_mode);
-
- ret = orangefs_inode_setattr(inode, &wbattr);
-
- return ret;
-}
-
-int orangefs_unmount_sb(struct super_block *sb)
-{
- int ret = -EINVAL;
- struct orangefs_kernel_op_s *new_op = NULL;
-
- gossip_debug(GOSSIP_UTILS_DEBUG,
- "orangefs_unmount_sb called on sb %p\n",
- sb);
-
- new_op = op_alloc(ORANGEFS_VFS_OP_FS_UMOUNT);
- if (!new_op)
- return -ENOMEM;
- new_op->upcall.req.fs_umount.id = ORANGEFS_SB(sb)->id;
- new_op->upcall.req.fs_umount.fs_id = ORANGEFS_SB(sb)->fs_id;
- strncpy(new_op->upcall.req.fs_umount.orangefs_config_server,
- ORANGEFS_SB(sb)->devname,
- ORANGEFS_MAX_SERVER_ADDR_LEN);
-
- gossip_debug(GOSSIP_UTILS_DEBUG,
- "Attempting ORANGEFS Unmount via host %s\n",
- new_op->upcall.req.fs_umount.orangefs_config_server);
-
- ret = service_operation(new_op, "orangefs_fs_umount", 0);
-
- gossip_debug(GOSSIP_UTILS_DEBUG,
- "orangefs_unmount: got return value of %d\n", ret);
- if (ret)
- sb = ERR_PTR(ret);
- else
- ORANGEFS_SB(sb)->mount_pending = 1;
-
- op_release(new_op);
- return ret;
-}
-
-/*
- * NOTE: on successful cancellation, be sure to return -EINTR, as
- * that's the return value the caller expects
- */
-int orangefs_cancel_op_in_progress(__u64 tag)
-{
- int ret = -EINVAL;
- struct orangefs_kernel_op_s *new_op = NULL;
-
- gossip_debug(GOSSIP_UTILS_DEBUG,
- "orangefs_cancel_op_in_progress called on tag %llu\n",
- llu(tag));
-
- new_op = op_alloc(ORANGEFS_VFS_OP_CANCEL);
- if (!new_op)
- return -ENOMEM;
- new_op->upcall.req.cancel.op_tag = tag;
-
- gossip_debug(GOSSIP_UTILS_DEBUG,
- "Attempting ORANGEFS operation cancellation of tag %llu\n",
- llu(new_op->upcall.req.cancel.op_tag));
-
- ret = service_operation(new_op, "orangefs_cancel", ORANGEFS_OP_CANCELLATION);
-
- gossip_debug(GOSSIP_UTILS_DEBUG,
- "orangefs_cancel_op_in_progress: got return value of %d\n",
- ret);
-
- op_release(new_op);
- return ret;
-}
-
-void orangefs_op_initialize(struct orangefs_kernel_op_s *op)
-{
- if (op) {
- spin_lock(&op->lock);
- op->io_completed = 0;
-
- op->upcall.type = ORANGEFS_VFS_OP_INVALID;
- op->downcall.type = ORANGEFS_VFS_OP_INVALID;
- op->downcall.status = -1;
-
- op->op_state = OP_VFS_STATE_UNKNOWN;
- op->tag = 0;
- spin_unlock(&op->lock);
- }
-}
-
-void orangefs_make_bad_inode(struct inode *inode)
-{
- if (is_root_handle(inode)) {
- /*
- * if this occurs, the pvfs2-client-core was killed but we
- * can't afford to lose the inode operations and such
- * associated with the root handle in any case.
- */
- gossip_debug(GOSSIP_UTILS_DEBUG,
- "*** NOT making bad root inode %pU\n",
- get_khandle_from_ino(inode));
- } else {
- gossip_debug(GOSSIP_UTILS_DEBUG,
- "*** making bad inode %pU\n",
- get_khandle_from_ino(inode));
- make_bad_inode(inode);
- }
-}
-
-/* Block all blockable signals... */
-void block_signals(sigset_t *orig_sigset)
-{
- sigset_t mask;
-
- /*
- * Initialize all entries in the signal set to the
- * inverse of the given mask.
- */
- siginitsetinv(&mask, sigmask(SIGKILL));
-
- /* Block 'em Danno... */
- sigprocmask(SIG_BLOCK, &mask, orig_sigset);
-}
-
-/* set the signal mask to the given template... */
-void set_signals(sigset_t *sigset)
-{
- sigprocmask(SIG_SETMASK, sigset, NULL);
-}
-
-/*
- * The following is a very dirty hack that is now a permanent part of the
- * ORANGEFS protocol. See protocol.h for more error definitions.
- */
-
-/* The order matches include/orangefs-types.h in the OrangeFS source. */
-static int PINT_errno_mapping[] = {
- 0, EPERM, ENOENT, EINTR, EIO, ENXIO, EBADF, EAGAIN, ENOMEM,
- EFAULT, EBUSY, EEXIST, ENODEV, ENOTDIR, EISDIR, EINVAL, EMFILE,
- EFBIG, ENOSPC, EROFS, EMLINK, EPIPE, EDEADLK, ENAMETOOLONG,
- ENOLCK, ENOSYS, ENOTEMPTY, ELOOP, EWOULDBLOCK, ENOMSG, EUNATCH,
- EBADR, EDEADLOCK, ENODATA, ETIME, ENONET, EREMOTE, ECOMM,
- EPROTO, EBADMSG, EOVERFLOW, ERESTART, EMSGSIZE, EPROTOTYPE,
- ENOPROTOOPT, EPROTONOSUPPORT, EOPNOTSUPP, EADDRINUSE,
- EADDRNOTAVAIL, ENETDOWN, ENETUNREACH, ENETRESET, ENOBUFS,
- ETIMEDOUT, ECONNREFUSED, EHOSTDOWN, EHOSTUNREACH, EALREADY,
- EACCES, ECONNRESET, ERANGE
-};
-
-int orangefs_normalize_to_errno(__s32 error_code)
-{
- __u32 i;
-
- /* Success */
- if (error_code == 0) {
- return 0;
- /*
- * This shouldn't ever happen. If it does it should be fixed on the
- * server.
- */
- } else if (error_code > 0) {
- gossip_err("orangefs: error status receieved.\n");
- gossip_err("orangefs: assuming error code is inverted.\n");
- error_code = -error_code;
- }
-
- /*
- * XXX: This is very bad since error codes from ORANGEFS may not be
- * suitable for return into userspace.
- */
-
- /*
- * Convert ORANGEFS error values into errno values suitable for return
- * from the kernel.
- */
- if ((-error_code) & ORANGEFS_NON_ERRNO_ERROR_BIT) {
- if (((-error_code) &
- (ORANGEFS_ERROR_NUMBER_BITS|ORANGEFS_NON_ERRNO_ERROR_BIT|
- ORANGEFS_ERROR_BIT)) == ORANGEFS_ECANCEL) {
- /*
- * cancellation error codes generally correspond to
- * a timeout from the client's perspective
- */
- error_code = -ETIMEDOUT;
- } else {
- /* assume a default error code */
- gossip_err("orangefs: warning: got error code without errno equivalent: %d.\n", error_code);
- error_code = -EINVAL;
- }
-
- /* Convert ORANGEFS encoded errno values into regular errno values. */
- } else if ((-error_code) & ORANGEFS_ERROR_BIT) {
- i = (-error_code) & ~(ORANGEFS_ERROR_BIT|ORANGEFS_ERROR_CLASS_BITS);
- if (i < sizeof(PINT_errno_mapping)/sizeof(*PINT_errno_mapping))
- error_code = -PINT_errno_mapping[i];
- else
- error_code = -EINVAL;
-
- /*
- * Only ORANGEFS protocol error codes should ever come here. Otherwise
- * there is a bug somewhere.
- */
- } else {
- gossip_err("orangefs: orangefs_normalize_to_errno: got error code which is not from ORANGEFS.\n");
- }
- return error_code;
-}
-
-#define NUM_MODES 11
-__s32 ORANGEFS_util_translate_mode(int mode)
-{
- int ret = 0;
- int i = 0;
- static int modes[NUM_MODES] = {
- S_IXOTH, S_IWOTH, S_IROTH,
- S_IXGRP, S_IWGRP, S_IRGRP,
- S_IXUSR, S_IWUSR, S_IRUSR,
- S_ISGID, S_ISUID
- };
- static int orangefs_modes[NUM_MODES] = {
- ORANGEFS_O_EXECUTE, ORANGEFS_O_WRITE, ORANGEFS_O_READ,
- ORANGEFS_G_EXECUTE, ORANGEFS_G_WRITE, ORANGEFS_G_READ,
- ORANGEFS_U_EXECUTE, ORANGEFS_U_WRITE, ORANGEFS_U_READ,
- ORANGEFS_G_SGID, ORANGEFS_U_SUID
- };
-
- for (i = 0; i < NUM_MODES; i++)
- if (mode & modes[i])
- ret |= orangefs_modes[i];
-
- return ret;
-}
-#undef NUM_MODES
-
-/*
- * After obtaining a string representation of the client's debug
- * keywords and their associated masks, this function is called to build an
- * array of these values.
- */
-int orangefs_prepare_cdm_array(char *debug_array_string)
-{
- int i;
- int rc = -EINVAL;
- char *cds_head = NULL;
- char *cds_delimiter = NULL;
- int keyword_len = 0;
-
- gossip_debug(GOSSIP_UTILS_DEBUG, "%s: start\n", __func__);
-
- /*
- * figure out how many elements the cdm_array needs.
- */
- for (i = 0; i < strlen(debug_array_string); i++)
- if (debug_array_string[i] == '\n')
- cdm_element_count++;
-
- if (!cdm_element_count) {
- pr_info("No elements in client debug array string!\n");
- goto out;
- }
-
- cdm_array =
- kzalloc(cdm_element_count * sizeof(struct client_debug_mask),
- GFP_KERNEL);
- if (!cdm_array) {
- pr_info("malloc failed for cdm_array!\n");
- rc = -ENOMEM;
- goto out;
- }
-
- cds_head = debug_array_string;
-
- for (i = 0; i < cdm_element_count; i++) {
- cds_delimiter = strchr(cds_head, '\n');
- *cds_delimiter = '\0';
-
- keyword_len = strcspn(cds_head, " ");
-
- cdm_array[i].keyword = kzalloc(keyword_len + 1, GFP_KERNEL);
- if (!cdm_array[i].keyword) {
- rc = -ENOMEM;
- goto out;
- }
-
- sscanf(cds_head,
- "%s %llx %llx",
- cdm_array[i].keyword,
- (unsigned long long *)&(cdm_array[i].mask1),
- (unsigned long long *)&(cdm_array[i].mask2));
-
- if (!strcmp(cdm_array[i].keyword, ORANGEFS_VERBOSE))
- client_verbose_index = i;
-
- if (!strcmp(cdm_array[i].keyword, ORANGEFS_ALL))
- client_all_index = i;
-
- cds_head = cds_delimiter + 1;
- }
-
- rc = cdm_element_count;
-
- gossip_debug(GOSSIP_UTILS_DEBUG, "%s: rc:%d:\n", __func__, rc);
-
-out:
-
- return rc;
-
-}
-
-/*
- * /sys/kernel/debug/orangefs/debug-help can be catted to
- * see all the available kernel and client debug keywords.
- *
- * When the kernel boots, we have no idea what keywords the
- * client supports, nor their associated masks.
- *
- * We pass through this function once at boot and stamp a
- * boilerplate "we don't know" message for the client in the
- * debug-help file. We pass through here again when the client
- * starts and then we can fill out the debug-help file fully.
- *
- * The client might be restarted any number of times between
- * reboots, we only build the debug-help file the first time.
- */
-int orangefs_prepare_debugfs_help_string(int at_boot)
-{
- int rc = -EINVAL;
- int i;
- int byte_count = 0;
- char *client_title = "Client Debug Keywords:\n";
- char *kernel_title = "Kernel Debug Keywords:\n";
-
- gossip_debug(GOSSIP_UTILS_DEBUG, "%s: start\n", __func__);
-
- if (at_boot) {
- byte_count += strlen(HELP_STRING_UNINITIALIZED);
- client_title = HELP_STRING_UNINITIALIZED;
- } else {
- /*
- * fill the client keyword/mask array and remember
- * how many elements there were.
- */
- cdm_element_count =
- orangefs_prepare_cdm_array(client_debug_array_string);
- if (cdm_element_count <= 0)
- goto out;
-
- /* Count the bytes destined for debug_help_string. */
- byte_count += strlen(client_title);
-
- for (i = 0; i < cdm_element_count; i++) {
- byte_count += strlen(cdm_array[i].keyword + 2);
- if (byte_count >= DEBUG_HELP_STRING_SIZE) {
- pr_info("%s: overflow 1!\n", __func__);
- goto out;
- }
- }
-
- gossip_debug(GOSSIP_UTILS_DEBUG,
- "%s: cdm_element_count:%d:\n",
- __func__,
- cdm_element_count);
- }
-
- byte_count += strlen(kernel_title);
- for (i = 0; i < num_kmod_keyword_mask_map; i++) {
- byte_count +=
- strlen(s_kmod_keyword_mask_map[i].keyword + 2);
- if (byte_count >= DEBUG_HELP_STRING_SIZE) {
- pr_info("%s: overflow 2!\n", __func__);
- goto out;
- }
- }
-
- /* build debug_help_string. */
- debug_help_string = kzalloc(DEBUG_HELP_STRING_SIZE, GFP_KERNEL);
- if (!debug_help_string) {
- rc = -ENOMEM;
- goto out;
- }
-
- strcat(debug_help_string, client_title);
-
- if (!at_boot) {
- for (i = 0; i < cdm_element_count; i++) {
- strcat(debug_help_string, "\t");
- strcat(debug_help_string, cdm_array[i].keyword);
- strcat(debug_help_string, "\n");
- }
- }
-
- strcat(debug_help_string, "\n");
- strcat(debug_help_string, kernel_title);
-
- for (i = 0; i < num_kmod_keyword_mask_map; i++) {
- strcat(debug_help_string, "\t");
- strcat(debug_help_string, s_kmod_keyword_mask_map[i].keyword);
- strcat(debug_help_string, "\n");
- }
-
- rc = 0;
-
-out:
-
- return rc;
-
-}
-
-/*
- * kernel = type 0
- * client = type 1
- */
-void debug_mask_to_string(void *mask, int type)
-{
- int i;
- int len = 0;
- char *debug_string;
- int element_count = 0;
-
- gossip_debug(GOSSIP_UTILS_DEBUG, "%s: start\n", __func__);
-
- if (type) {
- debug_string = client_debug_string;
- element_count = cdm_element_count;
- } else {
- debug_string = kernel_debug_string;
- element_count = num_kmod_keyword_mask_map;
- }
-
- memset(debug_string, 0, ORANGEFS_MAX_DEBUG_STRING_LEN);
-
- /*
- * Some keywords, like "all" or "verbose", are amalgams of
- * numerous other keywords. Make a special check for those
- * before grinding through the whole mask only to find out
- * later...
- */
- if (check_amalgam_keyword(mask, type))
- goto out;
-
- /* Build the debug string. */
- for (i = 0; i < element_count; i++)
- if (type)
- do_c_string(mask, i);
- else
- do_k_string(mask, i);
-
- len = strlen(debug_string);
-
- if ((len) && (type))
- client_debug_string[len - 1] = '\0';
- else if (len)
- kernel_debug_string[len - 1] = '\0';
- else if (type)
- strcpy(client_debug_string, "none");
- else
- strcpy(kernel_debug_string, "none");
-
-out:
-gossip_debug(GOSSIP_UTILS_DEBUG, "%s: string:%s:\n", __func__, debug_string);
-
- return;
-
-}
-
-void do_k_string(void *k_mask, int index)
-{
- __u64 *mask = (__u64 *) k_mask;
-
- if (keyword_is_amalgam((char *) s_kmod_keyword_mask_map[index].keyword))
- goto out;
-
- if (*mask & s_kmod_keyword_mask_map[index].mask_val) {
- if ((strlen(kernel_debug_string) +
- strlen(s_kmod_keyword_mask_map[index].keyword))
- < ORANGEFS_MAX_DEBUG_STRING_LEN - 1) {
- strcat(kernel_debug_string,
- s_kmod_keyword_mask_map[index].keyword);
- strcat(kernel_debug_string, ",");
- } else {
- gossip_err("%s: overflow!\n", __func__);
- strcpy(kernel_debug_string, ORANGEFS_ALL);
- goto out;
- }
- }
-
-out:
-
- return;
-}
-
-void do_c_string(void *c_mask, int index)
-{
- struct client_debug_mask *mask = (struct client_debug_mask *) c_mask;
-
- if (keyword_is_amalgam(cdm_array[index].keyword))
- goto out;
-
- if ((mask->mask1 & cdm_array[index].mask1) ||
- (mask->mask2 & cdm_array[index].mask2)) {
- if ((strlen(client_debug_string) +
- strlen(cdm_array[index].keyword) + 1)
- < ORANGEFS_MAX_DEBUG_STRING_LEN - 2) {
- strcat(client_debug_string,
- cdm_array[index].keyword);
- strcat(client_debug_string, ",");
- } else {
- gossip_err("%s: overflow!\n", __func__);
- strcpy(client_debug_string, ORANGEFS_ALL);
- goto out;
- }
- }
-out:
- return;
-}
-
-int keyword_is_amalgam(char *keyword)
-{
- int rc = 0;
-
- if ((!strcmp(keyword, ORANGEFS_ALL)) || (!strcmp(keyword, ORANGEFS_VERBOSE)))
- rc = 1;
-
- return rc;
-}
-
-/*
- * kernel = type 0
- * client = type 1
- *
- * return 1 if we found an amalgam.
- */
-int check_amalgam_keyword(void *mask, int type)
-{
- __u64 *k_mask;
- struct client_debug_mask *c_mask;
- int k_all_index = num_kmod_keyword_mask_map - 1;
- int rc = 0;
-
- if (type) {
- c_mask = (struct client_debug_mask *) mask;
-
- if ((c_mask->mask1 == cdm_array[client_all_index].mask1) &&
- (c_mask->mask2 == cdm_array[client_all_index].mask2)) {
- strcpy(client_debug_string, ORANGEFS_ALL);
- rc = 1;
- goto out;
- }
-
- if ((c_mask->mask1 == cdm_array[client_verbose_index].mask1) &&
- (c_mask->mask2 == cdm_array[client_verbose_index].mask2)) {
- strcpy(client_debug_string, ORANGEFS_VERBOSE);
- rc = 1;
- goto out;
- }
-
- } else {
- k_mask = (__u64 *) mask;
-
- if (*k_mask >= s_kmod_keyword_mask_map[k_all_index].mask_val) {
- strcpy(kernel_debug_string, ORANGEFS_ALL);
- rc = 1;
- goto out;
- }
- }
-
-out:
-
- return rc;
-}
-
-/*
- * kernel = type 0
- * client = type 1
- */
-void debug_string_to_mask(char *debug_string, void *mask, int type)
-{
- char *unchecked_keyword;
- int i;
- char *strsep_fodder = kstrdup(debug_string, GFP_KERNEL);
- char *original_pointer;
- int element_count = 0;
- struct client_debug_mask *c_mask;
- __u64 *k_mask;
-
- gossip_debug(GOSSIP_UTILS_DEBUG, "%s: start\n", __func__);
-
- if (type) {
- c_mask = (struct client_debug_mask *)mask;
- element_count = cdm_element_count;
- } else {
- k_mask = (__u64 *)mask;
- *k_mask = 0;
- element_count = num_kmod_keyword_mask_map;
- }
-
- original_pointer = strsep_fodder;
- while ((unchecked_keyword = strsep(&strsep_fodder, ",")))
- if (strlen(unchecked_keyword)) {
- for (i = 0; i < element_count; i++)
- if (type)
- do_c_mask(i,
- unchecked_keyword,
- &c_mask);
- else
- do_k_mask(i,
- unchecked_keyword,
- &k_mask);
- }
-
- kfree(original_pointer);
-}
-
-void do_c_mask(int i,
- char *unchecked_keyword,
- struct client_debug_mask **sane_mask)
-{
-
- if (!strcmp(cdm_array[i].keyword, unchecked_keyword)) {
- (**sane_mask).mask1 = (**sane_mask).mask1 | cdm_array[i].mask1;
- (**sane_mask).mask2 = (**sane_mask).mask2 | cdm_array[i].mask2;
- }
-}
-
-void do_k_mask(int i, char *unchecked_keyword, __u64 **sane_mask)
-{
-
- if (!strcmp(s_kmod_keyword_mask_map[i].keyword, unchecked_keyword))
- **sane_mask = (**sane_mask) |
- s_kmod_keyword_mask_map[i].mask_val;
-}
*/
#include "protocol.h"
-#include "pvfs2-kernel.h"
-#include "pvfs2-bufmap.h"
+#include "orangefs-kernel.h"
+#include "orangefs-bufmap.h"
#include <linux/parser.h>
*/
#include "protocol.h"
-#include "pvfs2-kernel.h"
-#include "pvfs2-bufmap.h"
+#include "orangefs-kernel.h"
+#include "orangefs-bufmap.h"
static const char *orangefs_follow_link(struct dentry *dentry, void **cookie)
{
*/
#include "protocol.h"
-#include "pvfs2-kernel.h"
-#include "pvfs2-bufmap.h"
+#include "orangefs-kernel.h"
+#include "orangefs-bufmap.h"
/*
* What we do in this function is to walk the list of operations that are
*/
#include "protocol.h"
-#include "pvfs2-kernel.h"
-#include "pvfs2-bufmap.h"
+#include "orangefs-kernel.h"
+#include "orangefs-bufmap.h"
#include <linux/posix_acl_xattr.h>
#include <linux/xattr.h>
projects / GitHub / moto-9609 / android_kernel_motorola_exynos9610.git / commitdiff