From: Peng Tao <tao.peng@primarydata.com>
Date: Thu, 7 Aug 2014 02:15:03 +0000 (+0800)
Subject: nfs/filelayout: set layoutcommit depending on write verifier
X-Git-Tag: fixes-for-v3.18-merge-window~10^2~57
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=bc7d4b8fd0917b4b84a8911185d34a97c696f219;p=pandora-kernel.git

nfs/filelayout: set layoutcommit depending on write verifier

Following http://www.rfc-editor.org/errata_search.php?rfc=5661&eid=2751
Don't set layoutcommit for commit_through_mds case.
For FILE_SYNC writes, don't set layoutcommit.
For DATA_SYNC wirtes, set layout commit right after wirtes done.
For UNSTABLE writes, set layout commit when commit done.

Signed-off-by: Peng Tao <tao.peng@primarydata.com>
Signed-off-by: Trond Myklebust <trond.myklebust@primarydata.com>
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