This is a note to let you know that I've just added the patch titled
smb: client: fix broken file attrs with nodfs mounts
to the 6.4-stable tree which can be found at:
http://www.kernel.org/git/?p=linux/kernel/git/stable/stable-queue.git;a=summary
The filename of the patch is:
smb-client-fix-broken-file-attrs-with-nodfs-mounts.patch
and it can be found in the queue-6.4 subdirectory.
If you, or anyone else, feels it should not be added to the stable tree,
please let <stable@xxxxxxxxxxxxxxx> know about it.
commit d6f4f042e346e3387730cb678b49cff9332b8510
Author: Paulo Alcantara <pc@xxxxxxxxxxxxx>
Date: Tue Jun 27 21:24:49 2023 -0300
smb: client: fix broken file attrs with nodfs mounts
[ Upstream commit d439b29057e26464120fc6c18f97433aa003b5fe ]
*_get_inode_info() functions expect -EREMOTE when query path info
calls find a DFS link, regardless whether !CONFIG_CIFS_DFS_UPCALL or
'nodfs' mount option. Otherwise, those files will miss the fake DFS
file attributes.
Before patch
$ mount.cifs //srv/dfs /mnt/1 -o ...,nodfs
$ ls -l /mnt/1
ls: cannot access '/mnt/1/link': Operation not supported
total 0
-rwxr-xr-x 1 root root 0 Jul 26 2022 dfstest2_file1.txt
drwxr-xr-x 2 root root 0 Aug 8 2022 dir1
d????????? ? ? ? ? ? link
After patch
$ mount.cifs //srv/dfs /mnt/1 -o ...,nodfs
$ ls -l /mnt/1
total 0
-rwxr-xr-x 1 root root 0 Jul 26 2022 dfstest2_file1.txt
drwxr-xr-x 2 root root 0 Aug 8 2022 dir1
drwx--x--x 2 root root 0 Jun 26 20:29 link
Fixes: c877ce47e137 ("cifs: reduce roundtrips on create/qinfo requests")
Signed-off-by: Paulo Alcantara (SUSE) <pc@xxxxxxxxxxxxx>
Signed-off-by: Steve French <stfrench@xxxxxxxxxxxxx>
Signed-off-by: Sasha Levin <sashal@xxxxxxxxxx>
diff --git a/fs/smb/client/smb2inode.c b/fs/smb/client/smb2inode.c
index 7e3ac4cb4efa6..8e696fbd72fa8 100644
--- a/fs/smb/client/smb2inode.c
+++ b/fs/smb/client/smb2inode.c
@@ -609,9 +609,6 @@ int smb2_query_path_info(const unsigned int xid, struct cifs_tcon *tcon,
if (islink)
rc = -EREMOTE;
}
- if (rc == -EREMOTE && IS_ENABLED(CONFIG_CIFS_DFS_UPCALL) && cifs_sb &&
- (cifs_sb->mnt_cifs_flags & CIFS_MOUNT_NO_DFS))
- rc = -EOPNOTSUPP;
}
out:
