kernel-ark/drivers/s390/cio
Cornelia Huck 3f4cf6e72f [S390] cio: Avoid machine check vs. not operational races.
There was the possibilty that an action like ccw_device_set_offline()
triggered by a device gone machine check might trigger a not oper
event. Unfortunately, this could lead to the situation that we tried
to unregister a subchannel twice: Once from the slow path evaluation,
and once via the not oper event.

Fix this by always using the same mechanism (css_schedule_eval()) for
triggering the unregister. This makes sure that unregistration will
only be done once. As an added bonus, it also simplyfies the code.

Signed-off-by: Cornelia Huck <cornelia.huck@de.ibm.com>
Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
2007-10-12 16:13:02 +02:00
..
airq.c
airq.h
blacklist.c
blacklist.h
ccwgroup.c
chp.c
chp.h
chsc.c
chsc.h
cio_debug.h
cio.c
cio.h
cmf.c
css.c
css.h
device_fsm.c [S390] cio: Avoid machine check vs. not operational races. 2007-10-12 16:13:02 +02:00
device_id.c
device_ops.c
device_pgid.c
device_status.c
device.c [S390] cio: Avoid machine check vs. not operational races. 2007-10-12 16:13:02 +02:00
device.h [S390] cio: Avoid machine check vs. not operational races. 2007-10-12 16:13:02 +02:00
idset.c
idset.h
ioasm.h
Makefile
qdio.c
qdio.h
schid.h