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authorJan Glauber <jang@linux.vnet.ibm.com>2010-05-17 10:00:15 +0200
committerMartin Schwidefsky <sky@mschwide.boeblingen.de.ibm.com>2010-05-17 10:00:17 +0200
commitf3eb20fafdc10aea0fb13b113ac3b9a3dc9a5dc6 (patch)
tree1025617dba903e0276efbfcd8e439ed0d475580c /drivers/s390/cio/qdio.h
parent09a308f384c4ad2fb45959f5da9918e812207c50 (diff)
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[S390] qdio: prevent starvation on PCI devices
If adapter interrupts are not available and traditional IO interrupts are used for qdio the inbound tasklet continued to run if new data arrived. That could possibly block other tasklets scheduled on the same CPU. If new data arrives schedule the tasklet again instead of directly processing the new data. Signed-off-by: Jan Glauber <jang@linux.vnet.ibm.com> Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
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