From: Jeff Layton <jlayton@redhat.com>
Date: Tue, 28 Sep 2010 13:14:01 +0000 (-0400)
Subject: NFS: don't use FLUSH_SYNC on WB_SYNC_NONE COMMIT calls (try #2)
X-Git-Tag: v2.6.37-rc1~120^2~32
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=a00dd6c03dd97a777c291a8af8682be4b5fadf8d;p=pandora-kernel.git

NFS: don't use FLUSH_SYNC on WB_SYNC_NONE COMMIT calls (try #2)

WB_SYNC_NONE is supposed to mean "don't wait on anything". That should
also include not waiting for COMMIT calls to complete.

WB_SYNC_NONE is also implied when wbc->nonblocking and
wbc->for_background are set, so we can replace those checks in
nfs_commit_unstable_pages with a check for WB_SYNC_NONE.

Signed-off-by: Jeff Layton <jlayton@redhat.com>
Reviewed-by: Wu Fengguang <fengguang.wu@intel.com>
Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>
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