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s390/dasd: add shutdown action
authorStefan Haberland <stefan.haberland@de.ibm.com>
Tue, 19 Jun 2012 15:30:12 +0000 (17:30 +0200)
committerHeiko Carstens <heiko.carstens@de.ibm.com>
Mon, 16 Jul 2012 08:52:50 +0000 (10:52 +0200)
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>

No differences found
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