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| author | Trond Myklebust <Trond.Myklebust@netapp.com> | 2013-02-19 18:04:42 +0100 |
|---|---|---|
| committer | Trond Myklebust <Trond.Myklebust@netapp.com> | 2013-02-19 18:18:27 +0100 |
| commit | 666b3d803a511fbc9bc5e5ea8ce66010cf03ea13 (patch) | |
| tree | c8aca4461673f4e2a294be8bf913ff1af64c8e8b /fs/lockd | |
| parent | umount oops when remove blocklayoutdriver first (diff) | |
| download | linux-666b3d803a511fbc9bc5e5ea8ce66010cf03ea13.tar.xz linux-666b3d803a511fbc9bc5e5ea8ce66010cf03ea13.zip | |
NLM: Ensure that we resend all pending blocking locks after a reclaim
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>
Cc: stable@vger.kernel.org
Diffstat (limited to 'fs/lockd')
| -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 54f9e6ce0430..52e5120bb159 100644 --- a/fs/lockd/clntproc.c +++ b/fs/lockd/clntproc.c @@ -550,6 +550,9 @@ 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; } |