linux/drivers/s390
Christof Schmitt c2af7545aa [SCSI] zfcp: Do not wait for SBALs on stopped queue
Trying to read the FC host statistics on an offline adapter results in
a 5 seconds wait. Reading the statistics tries to issue an exchange
port data request which first waits up to 5 seconds for an entry in
the request queue.

Change the strategy for getting a free SBAL to exit when the queue is
stopped. Reading the statistics will then fail without the wait.

Reviewed-by: Swen Schillig <swen@vnet.ibm.com>
Signed-off-by: Christof Schmitt <christof.schmitt@de.ibm.com>
Signed-off-by: James Bottomley <James.Bottomley@suse.de>
2010-07-21 15:05:07 -07:00
..
block [S390] dasd: unit check handling during internal cio I/O 2010-05-26 23:27:09 +02:00
char Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jikos/trivial 2010-05-20 09:20:59 -07:00
cio [S390] appldata/extmem/kvm: add missing GFP_KERNEL flag 2010-06-08 18:58:23 +02:00
crypto [S390] avoid default_llseek in s390 drivers 2010-05-17 10:00:16 +02:00
kvm include cleanup: Update gfp.h and slab.h includes to prepare for breaking implicit slab.h inclusion from percpu.h 2010-03-30 22:02:32 +09:00
net Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-next-2.6 2010-05-20 21:04:44 -07:00
scsi [SCSI] zfcp: Do not wait for SBALs on stopped queue 2010-07-21 15:05:07 -07:00
Makefile [S390] split/move machine check handler code 2009-03-26 15:24:10 +01:00