This is a note to let you know that I've just added the patch titled
afs: Make error on cell lookup failure consistent with OpenAFS
to the 5.10-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:
afs-make-error-on-cell-lookup-failure-consistent-wit.patch
and it can be found in the queue-5.10 subdirectory.
If you, or anyone else, feels it should not be added to the stable tree,
please let <stable@xxxxxxxxxxxxxxx> know about it.
commit 9c4e2f0888251ba97ae68a1f553cc1099de1b0de
Author: David Howells <dhowells@xxxxxxxxxx>
Date: Thu Jun 8 09:43:54 2023 +0100
afs: Make error on cell lookup failure consistent with OpenAFS
[ Upstream commit 2a4ca1b4b77850544408595e2433f5d7811a9daa ]
When kafs tries to look up a cell in the DNS or the local config, it will
translate a lookup failure into EDESTADDRREQ whereas OpenAFS translates it
into ENOENT. Applications such as West expect the latter behaviour and
fail if they see the former.
This can be seen by trying to mount an unknown cell:
# mount -t afs %example.com:cell.root /mnt
mount: /mnt: mount(2) system call failed: Destination address required.
Fixes: 4d673da14533 ("afs: Support the AFS dynamic root")
Reported-by: Markus Suvanto <markus.suvanto@xxxxxxxxx>
Link: https://bugzilla.kernel.org/show_bug.cgi?id=216637
Signed-off-by: David Howells <dhowells@xxxxxxxxxx>
Reviewed-by: Jeffrey Altman <jaltman@xxxxxxxxxxxx>
cc: Marc Dionne <marc.dionne@xxxxxxxxxxxx>
cc: linux-afs@xxxxxxxxxxxxxxxxxxx
Signed-off-by: Sasha Levin <sashal@xxxxxxxxxx>
diff --git a/fs/afs/dynroot.c b/fs/afs/dynroot.c
index db832cc931c87..b35c6081dbfe1 100644
--- a/fs/afs/dynroot.c
+++ b/fs/afs/dynroot.c
@@ -131,8 +131,8 @@ static int afs_probe_cell_name(struct dentry *dentry)
ret = dns_query(net->net, "afsdb", name, len, "srv=1",
NULL, NULL, false);
- if (ret == -ENODATA)
- ret = -EDESTADDRREQ;
+ if (ret == -ENODATA || ret == -ENOKEY)
+ ret = -ENOENT;
return ret;
}
