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[S390] qdio: cleanup SIGA sync
authorJan Glauber <jang@linux.vnet.ibm.com>
Wed, 5 Jan 2011 11:47:54 +0000 (12:47 +0100)
committerMartin Schwidefsky <sky@mschwide.boeblingen.de.ibm.com>
Wed, 5 Jan 2011 11:47:28 +0000 (12:47 +0100)
Simplify the SIGA sync code and add unlikely annotations. In polling mode
SBALs may be accessed without interrupt, so call SIGA sync before every scan.

Signed-off-by: Jan Glauber <jang@linux.vnet.ibm.com>
Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>

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