[S390] dasd: enable prefix independent of pav support
authorStefan Weinhuber <wein@de.ibm.com>
Mon, 7 Dec 2009 11:51:50 +0000 (12:51 +0100)
committerMartin Schwidefsky <sky@mschwide.boeblingen.de.ibm.com>
Mon, 7 Dec 2009 11:51:34 +0000 (12:51 +0100)
commit626350b63ef2cd447023d3dc2a34eaa7ca01bfff
treef31776d47d7b9200d9d13c33f767785fec070d3f
parent779c27820a6bd53523a34551aa6004045a060dcf
[S390] dasd: enable prefix independent of pav support

The DASD device driver needs to explicitly enable the prefix command
on the storage server, before it can be used. Originally we enabled
this command along with others only if we wanted to support PAV.
However, today we require this command for other features like
High Performance FICON as well, so we need to always enable prefix.

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