From: Trond Myklebust <Trond.Myklebust@netapp.com>
Date: Tue, 12 Jul 2011 17:42:01 +0000 (-0400)
Subject: NFS: Don't use DATA_SYNC writes
X-Git-Tag: v3.1-rc1~136^2~24
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=87ed5eb44ad9338b1617a0e78dea81d681325298;p=pandora-kernel.git

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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