From: NeilBrown <neilb@suse.de>
Date: Mon, 26 Jul 2010 01:57:07 +0000 (+1000)
Subject: md/raid5: export is_congested test
X-Git-Tag: v2.6.36-rc1~280^2~14
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=11d8a6e3719519fbc0e2c9d61b6fa931b84bf813;p=pandora-kernel.git

md/raid5: export is_congested test

the dm module will need this for dm-raid45.

Also only access ->queue->backing_dev_info->congested_fn
if ->queue actually exists.  It won't in a dm target.

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