From: Stefan Haberland <stefan.haberland@de.ibm.com>
Date: Tue, 19 Jun 2012 15:30:12 +0000 (+0200)
Subject: s390/dasd: add shutdown action
X-Git-Tag: v3.6-rc1~126^2~9
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=4679e8933ae6b555e570a7e1b8963c7a0f59c6e5;p=pandora-kernel.git

s390/dasd: add shutdown action

Add a mechanism to wait for outstanding IO during shutdown.
Schedule the block_bh and device_bh and wait until our request queues
are empty.

Signed-off-by: Stefan Haberland <stefan.haberland@de.ibm.com>
Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
Signed-off-by: Heiko Carstens <heiko.carstens@de.ibm.com>
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