tree a100bac8bd2063c347148beab68365c804e09def
parent b08e19defc10befc50af09771ff0b086f2a72138
author Sebastian Ott <sebott@linux.vnet.ibm.com> 1504614168 +0200
committer Martin Schwidefsky <schwidefsky@de.ibm.com> 1506576581 +0200

s390/cmf: set_schib_wait add timeout

When enabling channel measurement fails with a busy condition we wait
for the next interrupt to arrive before we retry the operation. For
devices which usually don't create interrupts we wait forever.

Although the waiting is done interruptible that behavior is not
expected and confused some users. Abort the operation after a 10s
timeout.

Signed-off-by: Sebastian Ott <sebott@linux.vnet.ibm.com>
Reviewed-by: Peter Oberparleiter <oberpar@linux.vnet.ibm.com>
Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>