linux-stable-rt/drivers/s390/cio
Heiko Carstens b32ecdb725 [S390] qdio: fix qdio_activate timeout handling.
Current code in qdio_activate waits for at least 5 seconds
until it returns. It may return earlier if an error occurs,
but not if everything is ok. This large timeout value
became visible with commit dfa77f611f
"qdio: set QDIO_ACTIVATE_TIMEOUT to 5s", which intended to
fix the timeout value which was zero. In turn setting an
FCP adapter online took 5 seconds.

In practice waiting for 5ms before continuing is sufficient
as pointed out by Utz Bacher and Cornelia Huck.

Cc: Utz Bacher <utz.bacher@de.ibm.com>
Cc: Jan Glauber <jan.glauber@de.ibm.com>
Cc: Ursula Braun <braunu@de.ibm.com>
Cc: Martin Peschke <mp3@de.ibm.com>
Acked-by: Cornelia Huck <cornelia.huck@de.ibm.com>
Signed-off-by: Heiko Carstens <heiko.carstens@de.ibm.com>
Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
2008-02-19 15:29:34 +01:00
..
Makefile
airq.c
blacklist.c
blacklist.h
ccwgroup.c
chp.c
chp.h
chsc.c
chsc.h
cio.c
cio.h
cio_debug.h
cmf.c
css.c
css.h
device.c [S390] cio: Do timed recovery on workqueue. 2008-02-19 15:29:32 +01:00
device.h
device_fsm.c
device_id.c
device_ops.c
device_pgid.c
device_status.c
idset.c
idset.h
io_sch.h
ioasm.h
qdio.c [S390] qdio: fix qdio_activate timeout handling. 2008-02-19 15:29:34 +01:00
qdio.h [S390] qdio: fix qdio_activate timeout handling. 2008-02-19 15:29:34 +01:00
schid.h