From: Joe Thornber <ejt@redhat.com>
Date: Fri, 10 Oct 2014 15:42:10 +0000 (+0100)
Subject: dm thin: sort the deferred cells
X-Git-Tag: omap-for-v3.19/fixes-for-merge-window~22^2~33
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=ac4c3f34a9af63092b3fbfafe34c3e966fbd96c5;p=pandora-kernel.git

dm thin: sort the deferred cells

Sort the cells in logical block order before processing each cell in
process_thin_deferred_cells().  This significantly improves the ondisk
layout on rotational storage, whereby improving read performance.

Signed-off-by: Joe Thornber <ejt@redhat.com>
Signed-off-by: Mike Snitzer <snitzer@redhat.com>
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