diff options
| author | Jeff Layton <jlayton@redhat.com> | 2010-09-03 11:50:09 -0400 |
|---|---|---|
| committer | Steve French <sfrench@us.ibm.com> | 2010-09-08 21:13:16 +0000 |
| commit | 639e7a913d81f918bfbf506e6ecd54664f787cbd (patch) | |
| tree | 2b786056d9c5db228b8d0a75943ff8a2bdb3b01a /fs/cifs/inode.c | |
| parent | c8e56f1f4fb9f82f63e4ce6d73a14501d0432c76 (diff) | |
| download | lwn-639e7a913d81f918bfbf506e6ecd54664f787cbd.tar.gz lwn-639e7a913d81f918bfbf506e6ecd54664f787cbd.zip | |
cifs: eliminate redundant xdev check in cifs_rename
The VFS always checks that the source and target of a rename are on the
same vfsmount, and hence have the same superblock. So, this check is
redundant. Remove it and simplify the error handling.
Signed-off-by: Jeff Layton <jlayton@redhat.com>
Signed-off-by: Steve French <sfrench@us.ibm.com>
Diffstat (limited to 'fs/cifs/inode.c')
| -rw-r--r-- | fs/cifs/inode.c | 30 |
1 files changed, 9 insertions, 21 deletions
diff --git a/fs/cifs/inode.c b/fs/cifs/inode.c index 86a164f08a74..93f77d438d3c 100644 --- a/fs/cifs/inode.c +++ b/fs/cifs/inode.c @@ -1462,29 +1462,18 @@ int cifs_rename(struct inode *source_dir, struct dentry *source_dentry, { char *fromName = NULL; char *toName = NULL; - struct cifs_sb_info *cifs_sb_source; - struct cifs_sb_info *cifs_sb_target; + struct cifs_sb_info *cifs_sb; struct cifsTconInfo *tcon; FILE_UNIX_BASIC_INFO *info_buf_source = NULL; FILE_UNIX_BASIC_INFO *info_buf_target; int xid, rc, tmprc; - cifs_sb_target = CIFS_SB(target_dir->i_sb); - cifs_sb_source = CIFS_SB(source_dir->i_sb); - tcon = cifs_sb_source->tcon; + cifs_sb = CIFS_SB(source_dir->i_sb); + tcon = cifs_sb->tcon; xid = GetXid(); /* - * BB: this might be allowed if same server, but different share. - * Consider adding support for this - */ - if (tcon != cifs_sb_target->tcon) { - rc = -EXDEV; - goto cifs_rename_exit; - } - - /* * we already have the rename sem so we do not need to * grab it again here to protect the path integrity */ @@ -1519,17 +1508,16 @@ int cifs_rename(struct inode *source_dir, struct dentry *source_dentry, info_buf_target = info_buf_source + 1; tmprc = CIFSSMBUnixQPathInfo(xid, tcon, fromName, info_buf_source, - cifs_sb_source->local_nls, - cifs_sb_source->mnt_cifs_flags & + cifs_sb->local_nls, + cifs_sb->mnt_cifs_flags & CIFS_MOUNT_MAP_SPECIAL_CHR); if (tmprc != 0) goto unlink_target; - tmprc = CIFSSMBUnixQPathInfo(xid, tcon, - toName, info_buf_target, - cifs_sb_target->local_nls, - /* remap based on source sb */ - cifs_sb_source->mnt_cifs_flags & + tmprc = CIFSSMBUnixQPathInfo(xid, tcon, toName, + info_buf_target, + cifs_sb->local_nls, + cifs_sb->mnt_cifs_flags & CIFS_MOUNT_MAP_SPECIAL_CHR); if (tmprc == 0 && (info_buf_source->UniqueId == |