[S390] dasd: Add support for enhanced VM UID
authorStefan Weinhuber <wein@de.ibm.com>
Fri, 1 Aug 2008 14:39:09 +0000 (16:39 +0200)
committerMartin Schwidefsky <schwidefsky@de.ibm.com>
Fri, 1 Aug 2008 14:39:29 +0000 (16:39 +0200)
commit4abb08c24b5fa7b6ad0807c07077f0f216f6788b
treeeb907a86ecb4ac1171972460e8440f6815a7a037
parentc2bb4e5d497823437f0a11d342024ccdc6ff5b0d
[S390] dasd: Add support for enhanced VM UID

When z/VM provides two virtual devices (minidisks) that reside on the
same real device, both will receive the configuration data from the
real device and thus get the same uid. To fix this problem, z/VM
provides an additional configuration data record that allows to
distinguish between minidisks.
z/VM APAR VM64273 needs be installed so this fix has an effect.

Signed-off-by: Stefan Weinhuber <wein@de.ibm.com>
Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
drivers/s390/block/dasd_alias.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