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[S390] qdio: move ACK to newest buffer for devices without QEBSM
authorJan Glauber <jang@linux.vnet.ibm.com>
Thu, 26 Mar 2009 14:24:28 +0000 (15:24 +0100)
committerMartin Schwidefsky <schwidefsky@de.ibm.com>
Thu, 26 Mar 2009 14:24:21 +0000 (15:24 +0100)
commit3fdf1e18cbc7c58f2d5604315ddae3596725bc6a
treeb5c145145d55b278b7ae4fcbf544518895a00ca7tree | snapshot
parent700e982f28f5e13cef8eea93ac8c6702f699d894commit | diff
[S390] qdio: move ACK to newest buffer for devices without QEBSM

The ACKnowledgement state should be set on the newest SBAL so an
adapter interrupt surpression check needs to scan fewer SBALs.

Signed-off-by: Jan Glauber <jang@linux.vnet.ibm.com>
Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
drivers/s390/cio/qdio_main.c diff | blob | history
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