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[S390] dasd: check if raw track access is supported
authorStefan Haberland <stefan.haberland@de.ibm.com>
Wed, 3 Aug 2011 14:44:23 +0000 (16:44 +0200)
committerHeiko Carstens <heiko.carstens@de.ibm.com>
Wed, 3 Aug 2011 14:44:19 +0000 (16:44 +0200)
commit34cd551a31cd4e35cd3f9ed9f13bb46b4ee98508
tree7dbea7ccd0d77864f75e85b353450fb8bd54f2c2tree | snapshot (tar.gz zip)
parent9dc7356ee1266d6a69fc80f28d006f71c20bf172commit | diff
[S390] dasd: check if raw track access is supported

To use raw track access some special storage server commands are
needed. Older storage hardware may not support these commands.
So check if raw track access is possible while setting the DASD
online.

Signed-off-by: Stefan Haberland <stefan.haberland@de.ibm.com>
Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
Signed-off-by: Heiko Carstens <heiko.carstens@de.ibm.com>
drivers/s390/block/dasd_eckd.c diff | blob | blame | history