diff options
| author | Trond Myklebust <Trond.Myklebust@netapp.com> | 2013-02-19 12:04:42 -0500 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2013-02-27 09:21:10 -0800 |
| commit | 58e772eae11a0569b80b8e2eebdee10ce0caa93d (patch) | |
| tree | 7a7f255852c1c8fde8687f1a499d6578c6959cc4 | |
| parent | 0a41d4134695a7059c1cc5d0ac57f44c9e0a54a1 (diff) | |
NLM: Ensure that we resend all pending blocking locks after a reclaim
commit 666b3d803a511fbc9bc5e5ea8ce66010cf03ea13 upstream.
Currently, nlmclnt_lock will break out of the for(;;) loop when
the reclaimer wakes up the blocking lock thread by setting
nlm_lck_denied_grace_period. This causes the lock request to fail
with an ENOLCK error.
The intention was always to ensure that we resend the lock request
after the grace period has expired.
Reported-by: Wangyuan Zhang <Wangyuan.Zhang@netapp.com>
Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
| -rw-r--r-- | fs/lockd/clntproc.c | 3 |
1 files changed, 3 insertions, 0 deletions
diff --git a/fs/lockd/clntproc.c b/fs/lockd/clntproc.c index 05d29124c6ab..a5657ff84c52 100644 --- a/fs/lockd/clntproc.c +++ b/fs/lockd/clntproc.c @@ -551,6 +551,9 @@ again: status = nlmclnt_block(block, req, NLMCLNT_POLL_TIMEOUT); if (status < 0) break; + /* Resend the blocking lock request after a server reboot */ + if (resp->status == nlm_lck_denied_grace_period) + continue; if (resp->status != nlm_lck_blocked) break; } |