s390/dasd: add query host access to volume support
authorStefan Haberland <stefan.haberland@de.ibm.com>
Fri, 18 Mar 2016 08:42:13 +0000 (09:42 +0100)
committerMartin Schwidefsky <schwidefsky@de.ibm.com>
Fri, 15 Apr 2016 16:16:37 +0000 (18:16 +0200)
commit5a3b7b112884f80ff19b18028fabeb4f9c035518
treeb1b743c481c829d26fdb97043f446f9f0d682b4f
parent2fd92273646abad21766ddfbfa00b6f927362308
s390/dasd: add query host access to volume support

With this feature, applications can query if a DASD volume is online
to another operating system instances by checking the online status of
all attached hosts from the storage server.

Reviewed-by: Sebastian Ott <sebott@linux.vnet.ibm.com>
Reviewed-by: Heiko Carstens <heiko.carstens@de.ibm.com>
Signed-off-by: Stefan Haberland <stefan.haberland@de.ibm.com>
Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
drivers/s390/block/dasd.c
drivers/s390/block/dasd_devmap.c
drivers/s390/block/dasd_eckd.c
drivers/s390/block/dasd_eckd.h
drivers/s390/block/dasd_int.h