From 65decb650a95b00301e7ea1b75a65d64c52132c7 Mon Sep 17 00:00:00 2001
From: Jeff Layton <jlayton@primarydata.com>
Date: Fri, 12 Sep 2014 16:40:22 -0400
Subject: [PATCH] nfsd: skip subsequent UMH "create" operations after the first
 one for v4.0 clients

In the case of v4.0 clients, we may call into the "create" client
tracking operation multiple times (once for each openowner). Upcalling
for each one of those is wasteful and slow however. We can skip doing
further "create" operations after the first one if we know that one has
already been done.

v4.1+ clients generally only call into this function once (on
RECLAIM_COMPLETE), and we can't skip upcalling on the create even if the
STABLE bit is set. Doing so would make it impossible for nfsdcltrack to
lift the grace period early since the timestamp has a different meaning
in the case where the client is expected to issue a RECLAIM_COMPLETE.

Signed-off-by: Jeff Layton <jlayton@primarydata.com>
---
Reading git-format-patch failed