s390/dasd: fix refcount for PAV reassignment
authorStefan Haberland <stefan.haberland@de.ibm.com>
Tue, 15 Dec 2015 09:45:05 +0000 (10:45 +0100)
committerGreg Kroah-Hartman <gregkh@linuxfoundation.org>
Thu, 3 Mar 2016 23:07:12 +0000 (15:07 -0800)
commit2e80d52bc8fb39da0208d73bb2a2ef7f10b7db2e
tree16a761a72d3541233193612fbcb1ab04e7cb743e
parentecf5ebf51d9f006ca9c6a93f38847af8d8b0818c
s390/dasd: fix refcount for PAV reassignment

commit 9d862ababb609439c5d6987f6d3ddd09e703aa0b upstream.

Add refcount to the DASD device when a summary unit check worker is
scheduled. This prevents that the device is set offline with worker
in place.

Signed-off-by: Stefan Haberland <stefan.haberland@de.ibm.com>
Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
drivers/s390/block/dasd_alias.c