From: Kent Overstreet <koverstreet@google.com>
Date: Sun, 12 May 2013 00:07:26 +0000 (-0700)
Subject: bcache: Initialize sectors_dirty when attaching
X-Git-Tag: v3.11-rc3~32^2~1^2~11
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=444fc0b6b167ed164e7436621a9d095e042644dd;p=pandora-kernel.git

bcache: Initialize sectors_dirty when attaching

Previously, dirty_data wouldn't get initialized until the first garbage
collection... which was a bit of a problem for background writeback (as
the PD controller keys off of it) and also confusing for users.

This is also prep work for making background writeback aware of raid5/6
stripes.

Signed-off-by: Kent Overstreet <koverstreet@google.com>
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