From: Joe Thornber <ejt@redhat.com>
Date: Wed, 27 May 2015 14:39:45 +0000 (+0100)
Subject: dm cache: wake the worker thread every time we free a migration object
X-Git-Tag: omap-for-v4.3/legacy-v2-signed~145^2~16
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=88bf5184fa5861e766e39fd34fc6d21557ac7be8;p=pandora-kernel.git

dm cache: wake the worker thread every time we free a migration object

When the cache is idle, writeback work was only being issued every
second.  With this change outstanding writebacks are streamed
constantly.  This offers a writeback performance improvement.

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