tree 5c85033eae24348ec07dc9a0a3ddbb25141153bb
parent f878b657ce8e7d3673afe48110ec208a29e38c4a
author Trond Myklebust <Trond.Myklebust@netapp.com> 1351014718 -0400
committer Trond Myklebust <Trond.Myklebust@netapp.com> 1351089982 -0400

LOCKD: fix races in nsm_client_get

Commit e9406db20fecbfcab646bad157b4cfdc7cadddfb (lockd: per-net
NSM client creation and destruction helpers introduced) contains
a nasty race on initialisation of the per-net NSM client because
it doesn't check whether or not the client is set after grabbing
the nsm_create_mutex.

Reported-by: Nix <nix@esperi.org.uk>
Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>
Cc: stable@vger.kernel.org