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cifs: fix renaming one hardlink on top of another 

cifs: fix renaming one hardlink on top of another

POSIX says that renaming one hardlink on top of another to the same
inode is a no-op. We had the logic mostly right, but forgot to clear
the return code.

Signed-off-by: Jeff Layton <jlayton@redhat.com>
Signed-off-by: Steve French <sfrench@us.ibm.com>
This commit is contained in:
Jeff Layton 2008-11-03 14:05:08 -05:00 committed by Steve French
parent 61de800d33
commit ae6884a9da
1 changed files with 3 additions and 1 deletions
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4
fs/cifs/inode.c
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@ -1361,9 +1361,11 @@ int cifs_rename(struct inode *source_dir, struct dentry *source_dentry,
CIFS_MOUNT_MAP_SPECIAL_CHR);
if (tmprc == 0 && (info_buf_source->UniqueId ==
info_buf_target->UniqueId))
info_buf_target->UniqueId)) {
/* same file, POSIX says that this is a noop */
rc = 0;
goto cifs_rename_exit;
}
} /* else ... BB we could add the same check for Windows by
checking the UniqueId via FILE_INTERNAL_INFO */