Benjamin Coddington 6cb657722e NFSv4: Retry LOCK on OLD_STATEID during delegation return
[ Upstream commit f5ea16137a3fa2858620dc9084466491c128535f ]

There's a small window where a LOCK sent during a delegation return can
race with another OPEN on client, but the open stateid has not yet been
updated.  In this case, the client doesn't handle the OLD_STATEID error
from the server and will lose this lock, emitting:
"NFS: nfs4_handle_delegation_recall_error: unhandled error -10024".

Fix this by sending the task through the nfs4 error handling in
nfs4_lock_done() when we may have to reconcile our stateid with what the
server believes it to be.  For this case, the result is a retry of the
LOCK operation with the updated stateid.

Reported-by: Gonzalo Siero Humet <gsierohu@redhat.com>
Signed-off-by: Benjamin Coddington <bcodding@redhat.com>
Signed-off-by: Anna Schumaker <Anna.Schumaker@Netapp.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
2022-11-25 17:45:40 +01:00
..
2020-10-16 11:11:22 -07:00
2021-09-18 13:40:15 +02:00
2022-11-16 09:57:07 +01:00
2022-06-09 10:21:16 +02:00
2020-10-23 11:33:41 -07:00
2020-10-23 11:33:41 -07:00