tree a5eb6dbf670233f04396262ce6f3ed370ec87d71
parent 63f5f796af613898669b23ccfc091ec77de7591c
author Trond Myklebust <trond.myklebust@primarydata.com> 1422130076 -0500
committer Trond Myklebust <trond.myklebust@primarydata.com> 1422138461 -0500

NFSv4: Fix atomicity problems with lock stateid updates

When we update the lock stateid, we really do need to ensure that this is
done under the state->state_lock, and that we are indeed only updating
confirmed locks with a newer version of the same stateid.

Signed-off-by: Trond Myklebust <trond.myklebust@primarydata.com>