From 87ed5eb44ad9338b1617a0e78dea81d681325298 Mon Sep 17 00:00:00 2001
From: Trond Myklebust <Trond.Myklebust@netapp.com>
Date: Tue, 12 Jul 2011 13:42:01 -0400
Subject: [PATCH] NFS: Don't use DATA_SYNC writes

If we're writing back data, and the FLUSH_STABLE flag is set, then we
always want to use NFS_FILE_SYNC, since we're always in a situation where
we're doing page reclaim, and so we want to free up the page as quickly
as possible.

If we're in the FLUSH_COND_STABLE case, then we either want to use another
unstable write (if we have to do a commit anyway) or again, we want to
use NFS_FILE_SYNC because we know that we have no more pages to write
out.

Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>
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