block: unify request timeout handling
Right now SCSI and others do their own command timeout handling.
Move those bits to the block layer.
Instead of having a timer per command, we try to be a bit more clever
and simply have one per-queue. This avoids the overhead of having to
tear down and setup a timer for each command, so it will result in a lot
less timer fiddling.
Signed-off-by: Mike Anderson <andmike@linux.vnet.ibm.com>
Signed-off-by: Jens Axboe <jens.axboe@oracle.com>
diff --git a/drivers/scsi/ipr.c b/drivers/scsi/ipr.c
index e7a3a65..d30eb7b 100644
--- a/drivers/scsi/ipr.c
+++ b/drivers/scsi/ipr.c
@@ -3670,7 +3670,8 @@
sdev->no_uld_attach = 1;
}
if (ipr_is_vset_device(res)) {
- sdev->timeout = IPR_VSET_RW_TIMEOUT;
+ blk_queue_rq_timeout(sdev->request_queue,
+ IPR_VSET_RW_TIMEOUT);
blk_queue_max_sectors(sdev->request_queue, IPR_VSET_MAX_SECTORS);
}
if (ipr_is_vset_device(res) || ipr_is_scsi_disk(res))