From: Christoph Hellwig <hch@lst.de>
Date: Wed, 10 Sep 2014 15:23:29 +0000 (-0700)
Subject: pnfs: force a layout commit when encountering busy segments during recall
X-Git-Tag: fixes-for-v3.18-merge-window~10^2~45
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=7c5d187581f57657de79e795602d9f1a0254c88c;p=pandora-kernel.git

pnfs: force a layout commit when encountering busy segments during recall

Expedite layout recall processing by forcing a layout commit when
we see busy segments.  Without it the layout recall might have to wait
until the VM decided to start writeback for the file, which can introduce
long delays.

Signed-off-by: Christoph Hellwig <hch@lst.de>
Signed-off-by: Trond Myklebust <trond.myklebust@primarydata.com>
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