[S390] dasd: Add support for raw ECKD access.
authorStefan Haberland <stefan.haberland@de.ibm.com>
Wed, 5 Jan 2011 11:48:06 +0000 (12:48 +0100)
committerMartin Schwidefsky <sky@mschwide.boeblingen.de.ibm.com>
Wed, 5 Jan 2011 11:47:30 +0000 (12:47 +0100)
Normal I/O operations through the DASD device driver give only access
to the data fields of an ECKD device even for track based I/O.
This patch extends the DASD device driver to give access to whole
ECKD tracks including count, key and data fields.

Signed-off-by: Stefan Haberland <stefan.haberland@de.ibm.com>
Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>

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