From: NeilBrown <neilb@suse.de>
Date: Mon, 14 Dec 2009 01:49:56 +0000 (+1100)
Subject: md/bitmap: update dirty flag when bitmap bits are explicitly set.
X-Git-Tag: v2.6.33-rc1~284^2~8
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=ffa23322b1596bb1a115e767d4251b62842adc23;p=pandora-kernel.git

md/bitmap: update dirty flag when bitmap bits are explicitly set.

There is a sysfs file which allows bits in the write-intent
bitmap to be explicit set - indicating that the block is thought
to be 'dirty'.
When this happens we should really set recovery_cp backwards
to include the block to reflect this dirtiness.

In particular, a 'resync' process will refuse to start if
recovery_cp is beyond the end of the array, so this is needed
to allow a resync to be triggered.

Signed-off-by: NeilBrown <neilb@suse.de>
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