NLM: Don't hang forever on NLM unlock requests
authorTrond Myklebust <Trond.Myklebust@netapp.com>
Tue, 31 May 2011 19:15:34 +0000 (15:15 -0400)
committerTrond Myklebust <Trond.Myklebust@netapp.com>
Wed, 15 Jun 2011 15:24:27 +0000 (11:24 -0400)
commit0b760113a3a155269a3fba93a409c640031dd68f
tree699dc3e0ebe2df11b0c67045c046deafdb56282d
parent9e3bd4e24e94d60d2e0762e919aab6c9a7fc0c5b
NLM: Don't hang forever on NLM unlock requests

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>
Cc: stable@kernel.org
fs/lockd/clntproc.c
include/linux/sunrpc/sched.h
net/sunrpc/clnt.c
net/sunrpc/sched.c