[S390] cio: dont unregister a busy device in ccw_device_set_offline

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If we detect a busy subchannel after the driver's set_offline
callback returned in ccw_device_set_offline, the current behavior
is to unregister the device, which may lead to undesired
consequences. Change this to just quiesce the subchannel and go on
with the offline processing.

Note: This is no excuse for not fixing these drivers -
after the set_offline callback they should have no running IO!

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

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Sebastian Ott 2009-12-07 12:51:41 +01:00 • committed by Martin Schwidefsky

parent de1b04388f

commit d40f7b75a2

1 changed files with 20 additions and 9 deletions

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drivers/s390/cio/device.c

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