From: Keith Busch <keith.busch@intel.com>
Date: Fri, 6 Jun 2014 16:22:07 +0000 (-0600)
Subject: blk-mq: don't allow queue entering for a dying queue
X-Git-Tag: omap-for-v3.16/fixes-against-rc1~56^2~8
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=3b632cf0eaa2e89a12c18f043e6e7c5bcc003645;p=pandora-kernel.git

blk-mq: don't allow queue entering for a dying queue

If the queue is going away, don't let new allocs or queueing
happen on it. Go through the normal wait process, and exit with
ENODEV in that case.

Signed-off-by: Keith Busch <keith.busch@intel.com>
Signed-off-by: Jens Axboe <axboe@fb.com>
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