-obj-$(CONFIG_LUSTRE_FS) += libcfs/ lvfs/ obdclass/ ptlrpc/ fld/ osc/ mgc/ \
+obj-$(CONFIG_LUSTRE_FS) += libcfs/ obdclass/ ptlrpc/ fld/ osc/ mgc/ \
fid/ lov/ mdc/ lmv/ llite/ obdecho/
+++ /dev/null
-/*
- * GPL HEADER START
- *
- * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License version 2 only,
- * as published by the Free Software Foundation.
- *
- * This program is distributed in the hope that it will be useful, but
- * WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
- * General Public License version 2 for more details (a copy is included
- * in the LICENSE file that accompanied this code).
- *
- * You should have received a copy of the GNU General Public License
- * version 2 along with this program; If not, see
- * http://www.sun.com/software/products/lustre/docs/GPLv2.pdf
- *
- * Please contact Sun Microsystems, Inc., 4150 Network Circle, Santa Clara,
- * CA 95054 USA or visit www.sun.com if you need additional information or
- * have any questions.
- *
- * GPL HEADER END
- */
-/*
- * Copyright (c) 2002, 2010, Oracle and/or its affiliates. All rights reserved.
- * Use is subject to license terms.
- *
- * Copyright (c) 2012, Intel Corporation.
- */
-/*
- * This file is part of Lustre, http://www.lustre.org/
- * Lustre is a trademark of Sun Microsystems, Inc.
- *
- * lustre/include/linux/lustre_fsfilt.h
- *
- * Filesystem interface helper.
- */
-
-#ifndef _LINUX_LUSTRE_FSFILT_H
-#define _LINUX_LUSTRE_FSFILT_H
-
-#ifndef _LUSTRE_FSFILT_H
-#error Do not #include this file directly. #include <lustre_fsfilt.h> instead
-#endif
-
-
-#include "../obd.h"
-#include "../obd_class.h"
-
-typedef void (*fsfilt_cb_t)(struct obd_device *obd, __u64 last_rcvd,
- void *data, int error);
-
-struct fsfilt_operations {
- struct list_head fs_list;
- struct module *fs_owner;
- char *fs_type;
- char *(* fs_getlabel)(struct super_block *sb);
- void *(* fs_start)(struct inode *inode, int op, void *desc_private,
- int logs);
- int (*fs_commit)(struct inode *inode, void *handle, int force_sync);
- int (* fs_map_inode_pages)(struct inode *inode, struct page **page,
- int pages, unsigned long *blocks,
- int create, struct mutex *sem);
- int (* fs_write_record)(struct file *, void *, int size, loff_t *,
- int force_sync);
- int (* fs_read_record)(struct file *, void *, int size, loff_t *);
- int (* fs_setup)(struct super_block *sb);
-};
-
-extern int fsfilt_register_ops(struct fsfilt_operations *fs_ops);
-extern void fsfilt_unregister_ops(struct fsfilt_operations *fs_ops);
-extern struct fsfilt_operations *fsfilt_get_ops(const char *type);
-extern void fsfilt_put_ops(struct fsfilt_operations *fs_ops);
-
-static inline char *fsfilt_get_label(struct obd_device *obd,
- struct super_block *sb)
-{
- if (obd->obd_fsops->fs_getlabel == NULL)
- return NULL;
- if (obd->obd_fsops->fs_getlabel(sb)[0] == '\0')
- return NULL;
-
- return obd->obd_fsops->fs_getlabel(sb);
-}
-
-#define FSFILT_OP_UNLINK 1
-#define FSFILT_OP_CANCEL_UNLINK 10
-
-#define __fsfilt_check_slow(obd, start, msg) \
-do { \
- if (time_before(jiffies, start + 15 * HZ)) \
- break; \
- else if (time_before(jiffies, start + 30 * HZ)) \
- CDEBUG(D_VFSTRACE, "%s: slow %s %lus\n", obd->obd_name, \
- msg, (jiffies-start) / HZ); \
- else if (time_before(jiffies, start + DISK_TIMEOUT * HZ)) \
- CWARN("%s: slow %s %lus\n", obd->obd_name, msg, \
- (jiffies - start) / HZ); \
- else \
- CERROR("%s: slow %s %lus\n", obd->obd_name, msg, \
- (jiffies - start) / HZ); \
-} while (0)
-
-#define fsfilt_check_slow(obd, start, msg) \
-do { \
- __fsfilt_check_slow(obd, start, msg); \
- start = jiffies; \
-} while (0)
-
-static inline void *fsfilt_start_log(struct obd_device *obd,
- struct inode *inode, int op,
- struct obd_trans_info *oti, int logs)
-{
- unsigned long now = jiffies;
- void *parent_handle = oti ? oti->oti_handle : NULL;
- void *handle;
-
- handle = obd->obd_fsops->fs_start(inode, op, parent_handle, logs);
- CDEBUG(D_INFO, "started handle %p (%p)\n", handle, parent_handle);
-
- if (oti != NULL) {
- if (parent_handle == NULL) {
- oti->oti_handle = handle;
- } else if (handle != parent_handle) {
- CERROR("mismatch: parent %p, handle %p, oti %p\n",
- parent_handle, handle, oti);
- LBUG();
- }
- }
- fsfilt_check_slow(obd, now, "journal start");
- return handle;
-}
-
-static inline int fsfilt_commit(struct obd_device *obd, struct inode *inode,
- void *handle, int force_sync)
-{
- unsigned long now = jiffies;
- int rc = obd->obd_fsops->fs_commit(inode, handle, force_sync);
- CDEBUG(D_INFO, "committing handle %p\n", handle);
-
- fsfilt_check_slow(obd, now, "journal start");
-
- return rc;
-}
-
-static inline int fsfilt_read_record(struct obd_device *obd, struct file *file,
- void *buf, loff_t size, loff_t *offs)
-{
- return obd->obd_fsops->fs_read_record(file, buf, size, offs);
-}
-
-static inline int fsfilt_write_record(struct obd_device *obd, struct file *file,
- void *buf, loff_t size, loff_t *offs,
- int force_sync)
-{
- return obd->obd_fsops->fs_write_record(file, buf, size, offs,
- force_sync);
-}
-
-static inline int fsfilt_setup(struct obd_device *obd, struct super_block *fs)
-{
- if (obd->obd_fsops->fs_setup)
- return obd->obd_fsops->fs_setup(fs);
- return 0;
-}
-
-
-
-
-#endif
#include "../lvfs.h"
struct lvfs_run_ctxt;
-struct file *l_dentry_open(struct lvfs_run_ctxt *, struct dentry *,
- int flags);
struct l_linux_dirent {
struct list_head lld_list;
+++ /dev/null
-/*
- * GPL HEADER START
- *
- * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License version 2 only,
- * as published by the Free Software Foundation.
- *
- * This program is distributed in the hope that it will be useful, but
- * WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
- * General Public License version 2 for more details (a copy is included
- * in the LICENSE file that accompanied this code).
- *
- * You should have received a copy of the GNU General Public License
- * version 2 along with this program; If not, see
- * http://www.sun.com/software/products/lustre/docs/GPLv2.pdf
- *
- * Please contact Sun Microsystems, Inc., 4150 Network Circle, Santa Clara,
- * CA 95054 USA or visit www.sun.com if you need additional information or
- * have any questions.
- *
- * GPL HEADER END
- */
-/*
- * Copyright (c) 2005, 2010, Oracle and/or its affiliates. All rights reserved.
- * Use is subject to license terms.
- *
- * Copyright (c) 2012, Intel Corporation.
- */
-/*
- * This file is part of Lustre, http://www.lustre.org/
- * Lustre is a trademark of Sun Microsystems, Inc.
- *
- * lustre/include/lustre_fsfilt.h
- *
- * Filesystem interface helper.
- */
-
-#ifndef _LUSTRE_FSFILT_H
-#define _LUSTRE_FSFILT_H
-
-#include "../include/linux/lustre_fsfilt.h"
-
-#define LU221_BAD_TIME (0x80000000U + 24 * 3600)
-
-#endif
struct l_wait_info;
#include "lustre_ha.h"
#include "lustre_net.h"
-#include "lvfs.h"
#define LI_POISON 0x5a5a5a5a
#if BITS_PER_LONG > 32
#include "../../include/linux/libcfs/lucache.h"
-/* lvfs_common.c */
-struct dentry *lvfs_fid2dentry(struct lvfs_run_ctxt *, __u64, __u32, __u64 ,void *data);
-
+/* lvfs_linux.c */
void push_ctxt(struct lvfs_run_ctxt *save, struct lvfs_run_ctxt *new_ctx,
struct lvfs_ucred *cred);
void pop_ctxt(struct lvfs_run_ctxt *saved, struct lvfs_run_ctxt *new_ctx,
spinlock_t obd_dev_lock; /* protect OBD bitfield above */
struct mutex obd_dev_mutex;
__u64 obd_last_committed;
- struct fsfilt_operations *obd_fsops;
spinlock_t obd_osfs_lock;
struct obd_statfs obd_osfs; /* locked by obd_osfs_lock */
__u64 obd_osfs_age;
+++ /dev/null
-obj-$(CONFIG_LUSTRE_FS) += lvfs.o
-
-lvfs-y := lvfs_linux.o fsfilt.o
-lvfs-$(CONFIG_PROC_FS) += lvfs_lib.o
+++ /dev/null
-/*
- * GPL HEADER START
- *
- * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License version 2 only,
- * as published by the Free Software Foundation.
- *
- * This program is distributed in the hope that it will be useful, but
- * WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
- * General Public License version 2 for more details (a copy is included
- * in the LICENSE file that accompanied this code).
- *
- * You should have received a copy of the GNU General Public License
- * version 2 along with this program; If not, see
- * http://www.sun.com/software/products/lustre/docs/GPLv2.pdf
- *
- * Please contact Sun Microsystems, Inc., 4150 Network Circle, Santa Clara,
- * CA 95054 USA or visit www.sun.com if you need additional information or
- * have any questions.
- *
- * GPL HEADER END
- */
-/*
- * Copyright (c) 2002, 2010, Oracle and/or its affiliates. All rights reserved.
- * Use is subject to license terms.
- */
-/*
- * This file is part of Lustre, http://www.lustre.org/
- * Lustre is a trademark of Sun Microsystems, Inc.
- */
-
-#define DEBUG_SUBSYSTEM S_FILTER
-
-#include <linux/fs.h>
-#include <linux/module.h>
-#include <linux/kmod.h>
-#include <linux/slab.h>
-#include "../../include/linux/libcfs/libcfs.h"
-#include "../include/lustre_fsfilt.h"
-
-LIST_HEAD(fsfilt_types);
-
-static struct fsfilt_operations *fsfilt_search_type(const char *type)
-{
- struct fsfilt_operations *found;
- struct list_head *p;
-
- list_for_each(p, &fsfilt_types) {
- found = list_entry(p, struct fsfilt_operations, fs_list);
- if (!strcmp(found->fs_type, type))
- return found;
- }
- return NULL;
-}
-
-int fsfilt_register_ops(struct fsfilt_operations *fs_ops)
-{
- struct fsfilt_operations *found;
-
- /* lock fsfilt_types list */
- found = fsfilt_search_type(fs_ops->fs_type);
- if (found) {
- if (found != fs_ops) {
- CERROR("different operations for type %s\n",
- fs_ops->fs_type);
- /* unlock fsfilt_types list */
- return -EEXIST;
- }
- } else {
- try_module_get(THIS_MODULE);
- list_add(&fs_ops->fs_list, &fsfilt_types);
- }
-
- /* unlock fsfilt_types list */
- return 0;
-}
-EXPORT_SYMBOL(fsfilt_register_ops);
-
-void fsfilt_unregister_ops(struct fsfilt_operations *fs_ops)
-{
- struct list_head *p;
-
- /* lock fsfilt_types list */
- list_for_each(p, &fsfilt_types) {
- struct fsfilt_operations *found;
-
- found = list_entry(p, typeof(*found), fs_list);
- if (found == fs_ops) {
- list_del(p);
- module_put(THIS_MODULE);
- break;
- }
- }
- /* unlock fsfilt_types list */
-}
-EXPORT_SYMBOL(fsfilt_unregister_ops);
-
-struct fsfilt_operations *fsfilt_get_ops(const char *type)
-{
- struct fsfilt_operations *fs_ops;
-
- /* lock fsfilt_types list */
- fs_ops = fsfilt_search_type(type);
- if (!fs_ops) {
- char name[32];
- int rc;
-
- snprintf(name, sizeof(name) - 1, "fsfilt_%s", type);
- name[sizeof(name) - 1] = '\0';
-
- rc = request_module("%s", name);
- if (!rc) {
- fs_ops = fsfilt_search_type(type);
- CDEBUG(D_INFO, "Loaded module '%s'\n", name);
- if (!fs_ops)
- rc = -ENOENT;
- }
-
- if (rc) {
- CERROR("Can't find %s interface\n", name);
- return ERR_PTR(rc < 0 ? rc : -rc);
- /* unlock fsfilt_types list */
- }
- }
- try_module_get(fs_ops->fs_owner);
- /* unlock fsfilt_types list */
-
- return fs_ops;
-}
-EXPORT_SYMBOL(fsfilt_get_ops);
-
-void fsfilt_put_ops(struct fsfilt_operations *fs_ops)
-{
- module_put(fs_ops->fs_owner);
-}
-EXPORT_SYMBOL(fsfilt_put_ops);
+++ /dev/null
-/*
- * GPL HEADER START
- *
- * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License version 2 only,
- * as published by the Free Software Foundation.
- *
- * This program is distributed in the hope that it will be useful, but
- * WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
- * General Public License version 2 for more details (a copy is included
- * in the LICENSE file that accompanied this code).
- *
- * You should have received a copy of the GNU General Public License
- * version 2 along with this program; If not, see
- * http://www.sun.com/software/products/lustre/docs/GPLv2.pdf
- *
- * Please contact Sun Microsystems, Inc., 4150 Network Circle, Santa Clara,
- * CA 95054 USA or visit www.sun.com if you need additional information or
- * have any questions.
- *
- * GPL HEADER END
- */
-/*
- * Copyright (c) 2007, 2010, Oracle and/or its affiliates. All rights reserved.
- * Use is subject to license terms.
- *
- * Copyright (c) 2012, Intel Corporation.
- */
-/*
- * This file is part of Lustre, http://www.lustre.org/
- * Lustre is a trademark of Sun Microsystems, Inc.
- *
- * lustre/lvfs/lvfs_lib.c
- *
- * Lustre filesystem abstraction routines
- *
- * Author: Andreas Dilger <adilger@clusterfs.com>
- */
-#include <linux/module.h>
-#include "../include/lustre_lib.h"
-#include "../include/lprocfs_status.h"
-
-void lprocfs_counter_add(struct lprocfs_stats *stats, int idx, long amount)
-{
- struct lprocfs_counter *percpu_cntr;
- struct lprocfs_counter_header *header;
- int smp_id;
- unsigned long flags = 0;
-
- if (stats == NULL)
- return;
-
- /* With per-client stats, statistics are allocated only for
- * single CPU area, so the smp_id should be 0 always. */
- smp_id = lprocfs_stats_lock(stats, LPROCFS_GET_SMP_ID, &flags);
- if (smp_id < 0)
- return;
-
- header = &stats->ls_cnt_header[idx];
- percpu_cntr = lprocfs_stats_counter_get(stats, smp_id, idx);
- percpu_cntr->lc_count++;
-
- if (header->lc_config & LPROCFS_CNTR_AVGMINMAX) {
- /*
- * lprocfs_counter_add() can be called in interrupt context,
- * as memory allocation could trigger memory shrinker call
- * ldlm_pool_shrink(), which calls lprocfs_counter_add().
- * LU-1727.
- *
- * Only obd_memory uses LPROCFS_STATS_FLAG_IRQ_SAFE
- * flag, because it needs accurate counting lest memory leak
- * check reports error.
- */
- if (in_interrupt() &&
- (stats->ls_flags & LPROCFS_STATS_FLAG_IRQ_SAFE) != 0)
- percpu_cntr->lc_sum_irq += amount;
- else
- percpu_cntr->lc_sum += amount;
-
- if (header->lc_config & LPROCFS_CNTR_STDDEV)
- percpu_cntr->lc_sumsquare += (__s64)amount * amount;
- if (amount < percpu_cntr->lc_min)
- percpu_cntr->lc_min = amount;
- if (amount > percpu_cntr->lc_max)
- percpu_cntr->lc_max = amount;
- }
- lprocfs_stats_unlock(stats, LPROCFS_GET_SMP_ID, &flags);
-}
-EXPORT_SYMBOL(lprocfs_counter_add);
-
-void lprocfs_counter_sub(struct lprocfs_stats *stats, int idx, long amount)
-{
- struct lprocfs_counter *percpu_cntr;
- struct lprocfs_counter_header *header;
- int smp_id;
- unsigned long flags = 0;
-
- if (stats == NULL)
- return;
-
- /* With per-client stats, statistics are allocated only for
- * single CPU area, so the smp_id should be 0 always. */
- smp_id = lprocfs_stats_lock(stats, LPROCFS_GET_SMP_ID, &flags);
- if (smp_id < 0)
- return;
-
- header = &stats->ls_cnt_header[idx];
- percpu_cntr = lprocfs_stats_counter_get(stats, smp_id, idx);
- if (header->lc_config & LPROCFS_CNTR_AVGMINMAX) {
- /*
- * Sometimes we use RCU callbacks to free memory which calls
- * lprocfs_counter_sub(), and RCU callbacks may execute in
- * softirq context - right now that's the only case we're in
- * softirq context here, use separate counter for that.
- * bz20650.
- *
- * Only obd_memory uses LPROCFS_STATS_FLAG_IRQ_SAFE
- * flag, because it needs accurate counting lest memory leak
- * check reports error.
- */
- if (in_interrupt() &&
- (stats->ls_flags & LPROCFS_STATS_FLAG_IRQ_SAFE) != 0)
- percpu_cntr->lc_sum_irq -= amount;
- else
- percpu_cntr->lc_sum -= amount;
- }
- lprocfs_stats_unlock(stats, LPROCFS_GET_SMP_ID, &flags);
-}
-EXPORT_SYMBOL(lprocfs_counter_sub);
-
-int lprocfs_stats_alloc_one(struct lprocfs_stats *stats, unsigned int cpuid)
-{
- struct lprocfs_counter *cntr;
- unsigned int percpusize;
- int rc = -ENOMEM;
- unsigned long flags = 0;
- int i;
-
- LASSERT(stats->ls_percpu[cpuid] == NULL);
- LASSERT((stats->ls_flags & LPROCFS_STATS_FLAG_NOPERCPU) == 0);
-
- percpusize = lprocfs_stats_counter_size(stats);
- LIBCFS_ALLOC_ATOMIC(stats->ls_percpu[cpuid], percpusize);
- if (stats->ls_percpu[cpuid] != NULL) {
- rc = 0;
- if (unlikely(stats->ls_biggest_alloc_num <= cpuid)) {
- if (stats->ls_flags & LPROCFS_STATS_FLAG_IRQ_SAFE)
- spin_lock_irqsave(&stats->ls_lock, flags);
- else
- spin_lock(&stats->ls_lock);
- if (stats->ls_biggest_alloc_num <= cpuid)
- stats->ls_biggest_alloc_num = cpuid + 1;
- if (stats->ls_flags & LPROCFS_STATS_FLAG_IRQ_SAFE)
- spin_unlock_irqrestore(&stats->ls_lock, flags);
- else
- spin_unlock(&stats->ls_lock);
- }
- /* initialize the ls_percpu[cpuid] non-zero counter */
- for (i = 0; i < stats->ls_num; ++i) {
- cntr = lprocfs_stats_counter_get(stats, cpuid, i);
- cntr->lc_min = LC_MIN_INIT;
- }
- }
-
- return rc;
-}
-EXPORT_SYMBOL(lprocfs_stats_alloc_one);
+++ /dev/null
-/*
- * GPL HEADER START
- *
- * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License version 2 only,
- * as published by the Free Software Foundation.
- *
- * This program is distributed in the hope that it will be useful, but
- * WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
- * General Public License version 2 for more details (a copy is included
- * in the LICENSE file that accompanied this code).
- *
- * You should have received a copy of the GNU General Public License
- * version 2 along with this program; If not, see
- * http://www.sun.com/software/products/lustre/docs/GPLv2.pdf
- *
- * Please contact Sun Microsystems, Inc., 4150 Network Circle, Santa Clara,
- * CA 95054 USA or visit www.sun.com if you need additional information or
- * have any questions.
- *
- * GPL HEADER END
- */
-/*
- * Copyright (c) 2003, 2010, Oracle and/or its affiliates. All rights reserved.
- * Use is subject to license terms.
- *
- * Copyright (c) 2011, 2012, Intel Corporation.
- */
-/*
- * This file is part of Lustre, http://www.lustre.org/
- * Lustre is a trademark of Sun Microsystems, Inc.
- *
- * lustre/lvfs/lvfs_linux.c
- *
- * Author: Andreas Dilger <adilger@clusterfs.com>
- */
-
-#define DEBUG_SUBSYSTEM S_FILTER
-
-#include <linux/fs.h>
-#include <asm/unistd.h>
-#include <linux/slab.h>
-#include <linux/pagemap.h>
-#include <linux/quotaops.h>
-#include <linux/module.h>
-#include "../../include/linux/libcfs/libcfs.h"
-#include "../include/linux/lustre_compat25.h"
-#include "../include/lvfs.h"
-
-#include "../include/obd.h"
-#include "../include/lustre_lib.h"
-
-struct lprocfs_stats *obd_memory = NULL;
-EXPORT_SYMBOL(obd_memory);
-/* refine later and change to seqlock or similar from libcfs */
-
-/* Debugging check only needed during development */
-#ifdef OBD_CTXT_DEBUG
-# define ASSERT_CTXT_MAGIC(magic) LASSERT((magic) == OBD_RUN_CTXT_MAGIC)
-# define ASSERT_NOT_KERNEL_CTXT(msg) LASSERTF(!segment_eq(get_fs(), get_ds()),\
- msg)
-# define ASSERT_KERNEL_CTXT(msg) LASSERTF(segment_eq(get_fs(), get_ds()), msg)
-#else
-# define ASSERT_CTXT_MAGIC(magic) do {} while (0)
-# define ASSERT_NOT_KERNEL_CTXT(msg) do {} while (0)
-# define ASSERT_KERNEL_CTXT(msg) do {} while (0)
-#endif
-
-static void push_group_info(struct lvfs_run_ctxt *save,
- struct group_info *ginfo)
-{
- if (!ginfo) {
- save->ngroups = current_ngroups;
- current_ngroups = 0;
- } else {
- struct cred *cred;
- task_lock(current);
- save->group_info = current_cred()->group_info;
- cred = prepare_creds();
- if (cred) {
- cred->group_info = ginfo;
- commit_creds(cred);
- }
- task_unlock(current);
- }
-}
-
-static void pop_group_info(struct lvfs_run_ctxt *save,
- struct group_info *ginfo)
-{
- if (!ginfo) {
- current_ngroups = save->ngroups;
- } else {
- struct cred *cred;
- task_lock(current);
- cred = prepare_creds();
- if (cred) {
- cred->group_info = save->group_info;
- commit_creds(cred);
- }
- task_unlock(current);
- }
-}
-
-/* push / pop to root of obd store */
-void push_ctxt(struct lvfs_run_ctxt *save, struct lvfs_run_ctxt *new_ctx,
- struct lvfs_ucred *uc)
-{
- /* if there is underlaying dt_device then push_ctxt is not needed */
- if (new_ctx->dt != NULL)
- return;
-
- /* ASSERT_NOT_KERNEL_CTXT("already in kernel context!\n"); */
- ASSERT_CTXT_MAGIC(new_ctx->magic);
- OBD_SET_CTXT_MAGIC(save);
-
- save->fs = get_fs();
- LASSERT(d_count(cfs_fs_pwd(current->fs)));
- LASSERT(d_count(new_ctx->pwd));
- save->pwd = dget(cfs_fs_pwd(current->fs));
- save->pwdmnt = mntget(cfs_fs_mnt(current->fs));
- save->luc.luc_umask = current_umask();
- save->ngroups = current_cred()->group_info->ngroups;
-
- LASSERT(save->pwd);
- LASSERT(save->pwdmnt);
- LASSERT(new_ctx->pwd);
- LASSERT(new_ctx->pwdmnt);
-
- if (uc) {
- struct cred *cred;
- save->luc.luc_uid = current_uid();
- save->luc.luc_gid = current_gid();
- save->luc.luc_fsuid = current_fsuid();
- save->luc.luc_fsgid = current_fsgid();
- save->luc.luc_cap = current_cap();
-
- cred = prepare_creds();
- if (cred) {
- cred->uid = uc->luc_uid;
- cred->gid = uc->luc_gid;
- cred->fsuid = uc->luc_fsuid;
- cred->fsgid = uc->luc_fsgid;
- cred->cap_effective = uc->luc_cap;
- commit_creds(cred);
- }
-
- push_group_info(save,
- uc->luc_ginfo ?:
- uc->luc_identity ? uc->luc_identity->mi_ginfo :
- NULL);
- }
- current->fs->umask = 0; /* umask already applied on client */
- set_fs(new_ctx->fs);
- ll_set_fs_pwd(current->fs, new_ctx->pwdmnt, new_ctx->pwd);
-}
-EXPORT_SYMBOL(push_ctxt);
-
-void pop_ctxt(struct lvfs_run_ctxt *saved, struct lvfs_run_ctxt *new_ctx,
- struct lvfs_ucred *uc)
-{
- /* if there is underlaying dt_device then pop_ctxt is not needed */
- if (new_ctx->dt != NULL)
- return;
-
- ASSERT_CTXT_MAGIC(saved->magic);
- ASSERT_KERNEL_CTXT("popping non-kernel context!\n");
-
- LASSERTF(cfs_fs_pwd(current->fs) == new_ctx->pwd, "%p != %p\n",
- cfs_fs_pwd(current->fs), new_ctx->pwd);
- LASSERTF(cfs_fs_mnt(current->fs) == new_ctx->pwdmnt, "%p != %p\n",
- cfs_fs_mnt(current->fs), new_ctx->pwdmnt);
-
- set_fs(saved->fs);
- ll_set_fs_pwd(current->fs, saved->pwdmnt, saved->pwd);
-
- dput(saved->pwd);
- mntput(saved->pwdmnt);
- current->fs->umask = saved->luc.luc_umask;
- if (uc) {
- struct cred *cred;
- cred = prepare_creds();
- if (cred) {
- cred->uid = saved->luc.luc_uid;
- cred->gid = saved->luc.luc_gid;
- cred->fsuid = saved->luc.luc_fsuid;
- cred->fsgid = saved->luc.luc_fsgid;
- cred->cap_effective = saved->luc.luc_cap;
- commit_creds(cred);
- }
-
- pop_group_info(saved,
- uc->luc_ginfo ?:
- uc->luc_identity ? uc->luc_identity->mi_ginfo :
- NULL);
- }
-}
-EXPORT_SYMBOL(pop_ctxt);
-
-/* utility to rename a file */
-int lustre_rename(struct dentry *dir, struct vfsmount *mnt,
- char *oldname, char *newname)
-{
- struct dentry *dchild_old, *dchild_new;
- int err = 0;
-
- ASSERT_KERNEL_CTXT("kernel doing rename outside kernel context\n");
- CDEBUG(D_INODE, "renaming file %.*s to %.*s\n",
- (int)strlen(oldname), oldname, (int)strlen(newname), newname);
-
- dchild_old = ll_lookup_one_len(oldname, dir, strlen(oldname));
- if (IS_ERR(dchild_old))
- return PTR_ERR(dchild_old);
-
- if (!dchild_old->d_inode) {
- err = -ENOENT;
- goto put_old;
- }
-
- dchild_new = ll_lookup_one_len(newname, dir, strlen(newname));
- if (IS_ERR(dchild_new)) {
- err = PTR_ERR(dchild_new);
- goto put_old;
- }
-
- err = ll_vfs_rename(dir->d_inode, dchild_old, mnt,
- dir->d_inode, dchild_new, mnt);
-
- dput(dchild_new);
-put_old:
- dput(dchild_old);
- return err;
-}
-EXPORT_SYMBOL(lustre_rename);
-
-/* Note: dput(dchild) will *not* be called if there is an error */
-struct file *l_dentry_open(struct lvfs_run_ctxt *ctxt, struct dentry *de,
- int flags)
-{
- struct path path = {
- .dentry = de,
- .mnt = ctxt->pwdmnt,
- };
- return dentry_open(&path, flags, current_cred());
-}
-EXPORT_SYMBOL(l_dentry_open);
-
-#if defined (CONFIG_PROC_FS)
-__s64 lprocfs_read_helper(struct lprocfs_counter *lc,
- struct lprocfs_counter_header *header,
- enum lprocfs_stats_flags flags,
- enum lprocfs_fields_flags field)
-{
- __s64 ret = 0;
-
- if (lc == NULL || header == NULL)
- return 0;
-
- switch (field) {
- case LPROCFS_FIELDS_FLAGS_CONFIG:
- ret = header->lc_config;
- break;
- case LPROCFS_FIELDS_FLAGS_SUM:
- ret = lc->lc_sum;
- if ((flags & LPROCFS_STATS_FLAG_IRQ_SAFE) != 0)
- ret += lc->lc_sum_irq;
- break;
- case LPROCFS_FIELDS_FLAGS_MIN:
- ret = lc->lc_min;
- break;
- case LPROCFS_FIELDS_FLAGS_MAX:
- ret = lc->lc_max;
- break;
- case LPROCFS_FIELDS_FLAGS_AVG:
- ret = (lc->lc_max - lc->lc_min) / 2;
- break;
- case LPROCFS_FIELDS_FLAGS_SUMSQUARE:
- ret = lc->lc_sumsquare;
- break;
- case LPROCFS_FIELDS_FLAGS_COUNT:
- ret = lc->lc_count;
- break;
- default:
- break;
- }
-
- return ret;
-}
-EXPORT_SYMBOL(lprocfs_read_helper);
-#endif /* CONFIG_PROC_FS*/
-
-MODULE_AUTHOR("Sun Microsystems, Inc. <http://www.lustre.org/>");
-MODULE_DESCRIPTION("Lustre VFS Filesystem Helper v0.1");
-MODULE_LICENSE("GPL");
statfs_pack.o obdo.o obd_config.o obd_mount.o \
lu_object.o dt_object.o capa.o cl_object.o \
cl_page.o cl_lock.o cl_io.o lu_ref.o acl.o
+
+obdclass-$(CONFIG_PROC_FS) += lprocfs_counters.o
--- /dev/null
+/*
+ * GPL HEADER START
+ *
+ * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License version 2 only,
+ * as published by the Free Software Foundation.
+ *
+ * This program is distributed in the hope that it will be useful, but
+ * WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+ * General Public License version 2 for more details (a copy is included
+ * in the LICENSE file that accompanied this code).
+ *
+ * You should have received a copy of the GNU General Public License
+ * version 2 along with this program; If not, see
+ *
+ * http://www.gnu.org/licenses/gpl-2.0.html
+ *
+ * GPL HEADER END
+ */
+/*
+ * Copyright (c) 2007, 2010, Oracle and/or its affiliates. All rights reserved.
+ * Use is subject to license terms.
+ *
+ * Copyright (c) 2012, 2013, Intel Corporation.
+ */
+/*
+ * This file is part of Lustre, http://www.lustre.org/
+ * Lustre is a trademark of Sun Microsystems, Inc.
+ *
+ * lustre/obdclass/lprocfs_counters.c
+ *
+ * Lustre lprocfs counter routines
+ *
+ * Author: Andreas Dilger <andreas.dilger@intel.com>
+ */
+
+#include <linux/module.h>
+#include "../include/lprocfs_status.h"
+#include "../include/obd_support.h"
+
+struct lprocfs_stats *obd_memory = NULL;
+EXPORT_SYMBOL(obd_memory);
+
+void lprocfs_counter_add(struct lprocfs_stats *stats, int idx, long amount)
+{
+ struct lprocfs_counter *percpu_cntr;
+ struct lprocfs_counter_header *header;
+ int smp_id;
+ unsigned long flags = 0;
+
+ if (stats == NULL)
+ return;
+
+ LASSERTF(0 <= idx && idx < stats->ls_num,
+ "idx %d, ls_num %hu\n", idx, stats->ls_num);
+
+ /* With per-client stats, statistics are allocated only for
+ * single CPU area, so the smp_id should be 0 always. */
+ smp_id = lprocfs_stats_lock(stats, LPROCFS_GET_SMP_ID, &flags);
+ if (smp_id < 0)
+ return;
+
+ header = &stats->ls_cnt_header[idx];
+ percpu_cntr = lprocfs_stats_counter_get(stats, smp_id, idx);
+ percpu_cntr->lc_count++;
+
+ if (header->lc_config & LPROCFS_CNTR_AVGMINMAX) {
+ /*
+ * lprocfs_counter_add() can be called in interrupt context,
+ * as memory allocation could trigger memory shrinker call
+ * ldlm_pool_shrink(), which calls lprocfs_counter_add().
+ * LU-1727.
+ *
+ * Only obd_memory uses LPROCFS_STATS_FLAG_IRQ_SAFE
+ * flag, because it needs accurate counting lest memory leak
+ * check reports error.
+ */
+ if (in_interrupt() &&
+ (stats->ls_flags & LPROCFS_STATS_FLAG_IRQ_SAFE) != 0)
+ percpu_cntr->lc_sum_irq += amount;
+ else
+ percpu_cntr->lc_sum += amount;
+
+ if (header->lc_config & LPROCFS_CNTR_STDDEV)
+ percpu_cntr->lc_sumsquare += (__s64)amount * amount;
+ if (amount < percpu_cntr->lc_min)
+ percpu_cntr->lc_min = amount;
+ if (amount > percpu_cntr->lc_max)
+ percpu_cntr->lc_max = amount;
+ }
+ lprocfs_stats_unlock(stats, LPROCFS_GET_SMP_ID, &flags);
+}
+EXPORT_SYMBOL(lprocfs_counter_add);
+
+void lprocfs_counter_sub(struct lprocfs_stats *stats, int idx, long amount)
+{
+ struct lprocfs_counter *percpu_cntr;
+ struct lprocfs_counter_header *header;
+ int smp_id;
+ unsigned long flags = 0;
+
+ if (stats == NULL)
+ return;
+
+ LASSERTF(0 <= idx && idx < stats->ls_num,
+ "idx %d, ls_num %hu\n", idx, stats->ls_num);
+
+ /* With per-client stats, statistics are allocated only for
+ * single CPU area, so the smp_id should be 0 always. */
+ smp_id = lprocfs_stats_lock(stats, LPROCFS_GET_SMP_ID, &flags);
+ if (smp_id < 0)
+ return;
+
+ header = &stats->ls_cnt_header[idx];
+ percpu_cntr = lprocfs_stats_counter_get(stats, smp_id, idx);
+ if (header->lc_config & LPROCFS_CNTR_AVGMINMAX) {
+ /*
+ * Sometimes we use RCU callbacks to free memory which calls
+ * lprocfs_counter_sub(), and RCU callbacks may execute in
+ * softirq context - right now that's the only case we're in
+ * softirq context here, use separate counter for that.
+ * bz20650.
+ *
+ * Only obd_memory uses LPROCFS_STATS_FLAG_IRQ_SAFE
+ * flag, because it needs accurate counting lest memory leak
+ * check reports error.
+ */
+ if (in_interrupt() &&
+ (stats->ls_flags & LPROCFS_STATS_FLAG_IRQ_SAFE) != 0)
+ percpu_cntr->lc_sum_irq -= amount;
+ else
+ percpu_cntr->lc_sum -= amount;
+ }
+ lprocfs_stats_unlock(stats, LPROCFS_GET_SMP_ID, &flags);
+}
+EXPORT_SYMBOL(lprocfs_counter_sub);
}
EXPORT_SYMBOL(lprocfs_free_per_client_stats);
+int lprocfs_stats_alloc_one(struct lprocfs_stats *stats, unsigned int cpuid)
+{
+ struct lprocfs_counter *cntr;
+ unsigned int percpusize;
+ int rc = -ENOMEM;
+ unsigned long flags = 0;
+ int i;
+
+ LASSERT(stats->ls_percpu[cpuid] == NULL);
+ LASSERT((stats->ls_flags & LPROCFS_STATS_FLAG_NOPERCPU) == 0);
+
+ percpusize = lprocfs_stats_counter_size(stats);
+ LIBCFS_ALLOC_ATOMIC(stats->ls_percpu[cpuid], percpusize);
+ if (stats->ls_percpu[cpuid] != NULL) {
+ rc = 0;
+ if (unlikely(stats->ls_biggest_alloc_num <= cpuid)) {
+ if (stats->ls_flags & LPROCFS_STATS_FLAG_IRQ_SAFE)
+ spin_lock_irqsave(&stats->ls_lock, flags);
+ else
+ spin_lock(&stats->ls_lock);
+ if (stats->ls_biggest_alloc_num <= cpuid)
+ stats->ls_biggest_alloc_num = cpuid + 1;
+ if (stats->ls_flags & LPROCFS_STATS_FLAG_IRQ_SAFE)
+ spin_unlock_irqrestore(&stats->ls_lock, flags);
+ else
+ spin_unlock(&stats->ls_lock);
+ }
+ /* initialize the ls_percpu[cpuid] non-zero counter */
+ for (i = 0; i < stats->ls_num; ++i) {
+ cntr = lprocfs_stats_counter_get(stats, cpuid, i);
+ cntr->lc_min = LC_MIN_INIT;
+ }
+ }
+ return rc;
+}
+EXPORT_SYMBOL(lprocfs_stats_alloc_one);
+
struct lprocfs_stats *lprocfs_alloc_stats(unsigned int num,
enum lprocfs_stats_flags flags)
{
}
EXPORT_SYMBOL(lprocfs_exp_cleanup);
+__s64 lprocfs_read_helper(struct lprocfs_counter *lc,
+ struct lprocfs_counter_header *header,
+ enum lprocfs_stats_flags flags,
+ enum lprocfs_fields_flags field)
+{
+ __s64 ret = 0;
+
+ if (lc == NULL || header == NULL)
+ return 0;
+
+ switch (field) {
+ case LPROCFS_FIELDS_FLAGS_CONFIG:
+ ret = header->lc_config;
+ break;
+ case LPROCFS_FIELDS_FLAGS_SUM:
+ ret = lc->lc_sum;
+ if ((flags & LPROCFS_STATS_FLAG_IRQ_SAFE) != 0)
+ ret += lc->lc_sum_irq;
+ break;
+ case LPROCFS_FIELDS_FLAGS_MIN:
+ ret = lc->lc_min;
+ break;
+ case LPROCFS_FIELDS_FLAGS_MAX:
+ ret = lc->lc_max;
+ break;
+ case LPROCFS_FIELDS_FLAGS_AVG:
+ ret = (lc->lc_max - lc->lc_min) / 2;
+ break;
+ case LPROCFS_FIELDS_FLAGS_SUMSQUARE:
+ ret = lc->lc_sumsquare;
+ break;
+ case LPROCFS_FIELDS_FLAGS_COUNT:
+ ret = lc->lc_count;
+ break;
+ default:
+ break;
+ }
+
+ return 0;
+}
+EXPORT_SYMBOL(lprocfs_read_helper);
+
int lprocfs_write_helper(const char *buffer, unsigned long count,
int *val)
{
#include "../include/lustre_log.h"
#include <linux/list.h>
#include "../include/lvfs.h"
-#include "../include/lustre_fsfilt.h"
int llog_initiator_connect(struct llog_ctxt *ctxt)
{
projects / GitHub / moto-9609 / android_kernel_motorola_exynos9610.git / commitdiff