dasd: use aliases for formatted devices during format
authorStefan Haberland <stefan.haberland@de.ibm.com>
Fri, 18 Jul 2014 12:19:25 +0000 (14:19 +0200)
committerMartin Schwidefsky <schwidefsky@de.ibm.com>
Tue, 22 Jul 2014 07:26:21 +0000 (09:26 +0200)
Formatting of a previously formatted device is slower than newly
format a device when alias devices are available.
For already formatted devices the alias devices are not used for
formatting.

Fix the alias handling for already formatted devices.

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

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