diff options
| author | Trond Myklebust <Trond.Myklebust@netapp.com> | 2013-04-22 02:01:06 +0400 |
|---|---|---|
| committer | Trond Myklebust <Trond.Myklebust@netapp.com> | 2013-04-22 02:08:42 +0400 |
| commit | 1dfd89af8697a299e7982ae740d4695ecd917eef (patch) | |
| tree | 5aa23c37416e71ef28c593bcf83bdaca9fdd0b7a /fs/lockd/clntproc.c | |
| parent | 8e472f33b5ba742f9bfcf16f0328f5a7842b32d1 (diff) | |
| download | linux-1dfd89af8697a299e7982ae740d4695ecd917eef.tar.xz | |
LOCKD: Ensure that nlmclnt_block resets block->b_status after a server reboot
After a server reboot, the reclaimer thread will recover all the existing
locks. For locks that are blocked, however, it will change the value
of block->b_status to nlm_lck_denied_grace_period in order to signal that
they need to wake up and resend the original blocking lock request.
Due to a bug, however, the block->b_status never gets reset after the
blocked locks have been woken up, and so the process goes into an
infinite loop of resends until the blocked lock is satisfied.
Reported-by: Marc Eshel <eshel@us.ibm.com>
Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>
Cc: stable@vger.kernel.org
Diffstat (limited to 'fs/lockd/clntproc.c')
| -rw-r--r-- | fs/lockd/clntproc.c | 3 |
1 files changed, 0 insertions, 3 deletions
diff --git a/fs/lockd/clntproc.c b/fs/lockd/clntproc.c index 7e529c3c45c0..9760ecb9b60f 100644 --- a/fs/lockd/clntproc.c +++ b/fs/lockd/clntproc.c @@ -550,9 +550,6 @@ 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; } |