[S390] dasd: use idal for device characteristics
authorStefan Haberland <stefan.haberland@de.ibm.com>
Wed, 14 Oct 2009 10:43:48 +0000 (12:43 +0200)
committerMartin Schwidefsky <sky@mschwide.boeblingen.de.ibm.com>
Wed, 14 Oct 2009 10:43:53 +0000 (12:43 +0200)
commitd9fa9441ed6e0467d7d41de730581874c997e658
tree4f6b0ec9058c616aa8d8265d59dd310d0a0f56a2
parentbe6e3f9cd639fec5882fca16e058843c3064c6c9
[S390] dasd: use idal for device characteristics

If the rdc_buffer is above 2G we need indirect addresssing so we have
to use an idaw to give the rdc_buffer to the ccw.
If the rdc_buffer is under 2G nothing changes.

Signed-off-by: Stefan Haberland <stefan.haberland@de.ibm.com>
Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
drivers/s390/block/dasd.c