tree 0e2d38a149bf438826961916585770c077f9228e
parent a7df7a9494ac8eb5fa4d902d3e90b083705dc80f
author Stefan Haberland <stefan.haberland@de.ibm.com> 1340119812 +0200
committer Heiko Carstens <heiko.carstens@de.ibm.com> 1342428770 +0200

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>