diff options
| author | Trond Myklebust <Trond.Myklebust@netapp.com> | 2011-05-31 15:15:34 -0400 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@suse.de> | 2011-11-07 12:32:47 -0800 |
| commit | 82ccf268c0fc98dfc282ff2e240656530618d49e (patch) | |
| tree | c3c87c1339d2b80710e957a079561e7f3e52f79e /fs | |
| parent | cdb19fb1cc7c1854d5698e43139f7920bcab274a (diff) | |
| download | lwn-82ccf268c0fc98dfc282ff2e240656530618d49e.tar.gz lwn-82ccf268c0fc98dfc282ff2e240656530618d49e.zip | |
NLM: Don't hang forever on NLM unlock requests
commit 0b760113a3a155269a3fba93a409c640031dd68f upstream.
If the NLM daemon is killed on the NFS server, we can currently end up
hanging forever on an 'unlock' request, instead of aborting. Basically,
if the rpcbind request fails, or the server keeps returning garbage, we
really want to quit instead of retrying.
Tested-by: Vasily Averin <vvs@sw.ru>
Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
Diffstat (limited to 'fs')
| -rw-r--r-- | fs/lockd/clntproc.c | 8 |
1 files changed, 7 insertions, 1 deletions
diff --git a/fs/lockd/clntproc.c b/fs/lockd/clntproc.c index c81249fef11f..c325a834f8df 100644 --- a/fs/lockd/clntproc.c +++ b/fs/lockd/clntproc.c @@ -709,7 +709,13 @@ static void nlmclnt_unlock_callback(struct rpc_task *task, void *data) if (task->tk_status < 0) { dprintk("lockd: unlock failed (err = %d)\n", -task->tk_status); - goto retry_rebind; + switch (task->tk_status) { + case -EACCES: + case -EIO: + goto die; + default: + goto retry_rebind; + } } if (status == NLM_LCK_DENIED_GRACE_PERIOD) { rpc_delay(task, NLMCLNT_GRACE_WAIT); |