nfsd: nfserr_jukebox in nlm_fopen should lead to a retry

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commit a082e4b4d0 upstream.

When v3 NLM request finds a conflicting delegation, it triggers
a delegation recall and nfsd_open fails with EAGAIN. nfsd_open
then translates EAGAIN into nfserr_jukebox. In nlm_fopen, instead
of returning nlm_failed for when there is a conflicting delegation,
drop this NLM request so that the client retries. Once delegation
is recalled and if a local lock is claimed, a retry would lead to
nfsd returning a nlm_lck_blocked error or a successful nlm lock.

Fixes: d343fce148 ("[PATCH] knfsd: Allow lockd to drop replies as appropriate")
Cc: stable@vger.kernel.org # v6.6
Signed-off-by: Olga Kornievskaia <okorniev@redhat.com>
Signed-off-by: Chuck Lever <chuck.lever@oracle.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

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Olga Kornievskaia 2025-08-21 16:31:46 -04:00 • committed by Greg Kroah-Hartman

parent 017addab06

commit 6248ff249b

1 changed files with 15 additions and 0 deletions

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fs/nfsd/lockd.c

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