*/
#include <linux/pagemap.h>
+#include <linux/vfs.h>
#include "cifsglob.h"
#include "cifsproto.h"
#include "cifs_debug.h"
wsize = min_t(unsigned int, wsize,
server->maxBuf - sizeof(WRITE_REQ) + 4);
- /* limit to the amount that we can kmap at once */
- wsize = min_t(unsigned int, wsize, CIFS_KMAP_SIZE_LIMIT);
-
/* hard limit of CIFS_MAX_WSIZE */
wsize = min_t(unsigned int, wsize, CIFS_MAX_WSIZE);
if (!(server->capabilities & CAP_LARGE_READ_X))
rsize = min_t(unsigned int, CIFSMaxBufSize, rsize);
- /* limit to the amount that we can kmap at once */
- rsize = min_t(unsigned int, rsize, CIFS_KMAP_SIZE_LIMIT);
-
/* hard limit of CIFS_MAX_RSIZE */
rsize = min_t(unsigned int, rsize, CIFS_MAX_RSIZE);
cinode->can_cache_brlcks = cinode->clientCanCacheAll;
}
-static int
+static void
cifs_close_file(const unsigned int xid, struct cifs_tcon *tcon,
struct cifs_fid *fid)
{
- return CIFSSMBClose(xid, tcon, fid->netfid);
+ CIFSSMBClose(xid, tcon, fid->netfid);
}
static int
return CIFSSMBWrite2(xid, parms, written, iov, nr_segs);
}
+static int
+smb_set_file_info(struct inode *inode, const char *full_path,
+ FILE_BASIC_INFO *buf, const unsigned int xid)
+{
+ int oplock = 0;
+ int rc;
+ __u16 netfid;
+ __u32 netpid;
+ struct cifsFileInfo *open_file;
+ struct cifsInodeInfo *cinode = CIFS_I(inode);
+ struct cifs_sb_info *cifs_sb = CIFS_SB(inode->i_sb);
+ struct tcon_link *tlink = NULL;
+ struct cifs_tcon *tcon;
+ FILE_BASIC_INFO info_buf;
+
+ /* if the file is already open for write, just use that fileid */
+ open_file = find_writable_file(cinode, true);
+ if (open_file) {
+ netfid = open_file->fid.netfid;
+ netpid = open_file->pid;
+ tcon = tlink_tcon(open_file->tlink);
+ goto set_via_filehandle;
+ }
+
+ tlink = cifs_sb_tlink(cifs_sb);
+ if (IS_ERR(tlink)) {
+ rc = PTR_ERR(tlink);
+ tlink = NULL;
+ goto out;
+ }
+ tcon = tlink_tcon(tlink);
+
+ /*
+ * NT4 apparently returns success on this call, but it doesn't really
+ * work.
+ */
+ if (!(tcon->ses->flags & CIFS_SES_NT4)) {
+ rc = CIFSSMBSetPathInfo(xid, tcon, full_path, buf,
+ cifs_sb->local_nls,
+ cifs_sb->mnt_cifs_flags &
+ CIFS_MOUNT_MAP_SPECIAL_CHR);
+ if (rc == 0) {
+ cinode->cifsAttrs = le32_to_cpu(buf->Attributes);
+ goto out;
+ } else if (rc != -EOPNOTSUPP && rc != -EINVAL)
+ goto out;
+ }
+
+ cFYI(1, "calling SetFileInfo since SetPathInfo for times not supported "
+ "by this server");
+ rc = CIFSSMBOpen(xid, tcon, full_path, FILE_OPEN,
+ SYNCHRONIZE | FILE_WRITE_ATTRIBUTES, CREATE_NOT_DIR,
+ &netfid, &oplock, NULL, cifs_sb->local_nls,
+ cifs_sb->mnt_cifs_flags & CIFS_MOUNT_MAP_SPECIAL_CHR);
+
+ if (rc != 0) {
+ if (rc == -EIO)
+ rc = -EINVAL;
+ goto out;
+ }
+
+ netpid = current->tgid;
+
+set_via_filehandle:
+ rc = CIFSSMBSetFileInfo(xid, tcon, &info_buf, netfid, netpid);
+ if (!rc)
+ cinode->cifsAttrs = le32_to_cpu(buf->Attributes);
+
+ if (open_file == NULL)
+ CIFSSMBClose(xid, tcon, netfid);
+ else
+ cifsFileInfo_put(open_file);
+out:
+ if (tlink != NULL)
+ cifs_put_tlink(tlink);
+ return rc;
+}
+
+static int
+cifs_query_dir_first(const unsigned int xid, struct cifs_tcon *tcon,
+ const char *path, struct cifs_sb_info *cifs_sb,
+ struct cifs_fid *fid, __u16 search_flags,
+ struct cifs_search_info *srch_inf)
+{
+ return CIFSFindFirst(xid, tcon, path, cifs_sb,
+ &fid->netfid, search_flags, srch_inf, true);
+}
+
+static int
+cifs_query_dir_next(const unsigned int xid, struct cifs_tcon *tcon,
+ struct cifs_fid *fid, __u16 search_flags,
+ struct cifs_search_info *srch_inf)
+{
+ return CIFSFindNext(xid, tcon, fid->netfid, search_flags, srch_inf);
+}
+
+static int
+cifs_close_dir(const unsigned int xid, struct cifs_tcon *tcon,
+ struct cifs_fid *fid)
+{
+ return CIFSFindClose(xid, tcon, fid->netfid);
+}
+
+static int
+cifs_oplock_response(struct cifs_tcon *tcon, struct cifs_fid *fid,
+ struct cifsInodeInfo *cinode)
+{
+ return CIFSSMBLock(0, tcon, fid->netfid, current->tgid, 0, 0, 0, 0,
+ LOCKING_ANDX_OPLOCK_RELEASE, false,
+ cinode->clientCanCacheRead ? 1 : 0);
+}
+
+static int
+cifs_queryfs(const unsigned int xid, struct cifs_tcon *tcon,
+ struct kstatfs *buf)
+{
+ int rc = -EOPNOTSUPP;
+
+ buf->f_type = CIFS_MAGIC_NUMBER;
+
+ /*
+ * We could add a second check for a QFS Unix capability bit
+ */
+ if ((tcon->ses->capabilities & CAP_UNIX) &&
+ (CIFS_POSIX_EXTENSIONS & le64_to_cpu(tcon->fsUnixInfo.Capability)))
+ rc = CIFSSMBQFSPosixInfo(xid, tcon, buf);
+
+ /*
+ * Only need to call the old QFSInfo if failed on newer one,
+ * e.g. by OS/2.
+ **/
+ if (rc && (tcon->ses->capabilities & CAP_NT_SMBS))
+ rc = CIFSSMBQFSInfo(xid, tcon, buf);
+
+ /*
+ * Some old Windows servers also do not support level 103, retry with
+ * older level one if old server failed the previous call or we
+ * bypassed it because we detected that this was an older LANMAN sess
+ */
+ if (rc)
+ rc = SMBOldQFSInfo(xid, tcon, buf);
+ return rc;
+}
+
+static int
+cifs_mand_lock(const unsigned int xid, struct cifsFileInfo *cfile, __u64 offset,
+ __u64 length, __u32 type, int lock, int unlock, bool wait)
+{
+ return CIFSSMBLock(xid, tlink_tcon(cfile->tlink), cfile->fid.netfid,
+ current->tgid, length, offset, unlock, lock,
+ (__u8)type, wait, 0);
+}
+
struct smb_version_operations smb1_operations = {
.send_cancel = send_nt_cancel,
.compare_fids = cifs_compare_fids,
.query_path_info = cifs_query_path_info,
.query_file_info = cifs_query_file_info,
.get_srv_inum = cifs_get_srv_inum,
+ .set_path_size = CIFSSMBSetEOF,
+ .set_file_size = CIFSSMBSetFileSize,
+ .set_file_info = smb_set_file_info,
.build_path_to_root = cifs_build_path_to_root,
.echo = CIFSSMBEcho,
.mkdir = CIFSSMBMkDir,
.async_writev = cifs_async_writev,
.sync_read = cifs_sync_read,
.sync_write = cifs_sync_write,
+ .query_dir_first = cifs_query_dir_first,
+ .query_dir_next = cifs_query_dir_next,
+ .close_dir = cifs_close_dir,
+ .calc_smb_size = smbCalcSize,
+ .oplock_response = cifs_oplock_response,
+ .queryfs = cifs_queryfs,
+ .mand_lock = cifs_mand_lock,
+ .mand_unlock_range = cifs_unlock_range,
+ .push_mand_locks = cifs_push_mandatory_locks,
};
struct smb_version_values smb1_values = {
projects / GitHub / mt8127 / android_kernel_alcatel_ttab.git / blobdiff