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[SCSI] fc class: fail fast bsg requests

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If the port state is blocked and the fast io fail tmo has
fired then this patch will fail bsg requests immediately.
This is needed if userspace is sending IOs to test the transport
like with fcping, so it will not have to wait for the dev loss tmo.
With this patch he bsg req fast io fail code behaves like the normal
and sg io/passthrough fast io fail.

Signed-off-by: Mike Christie <michaelc@cs.wisc.edu>
Acked-By: James Smart <james.smart@emulex.com>
Signed-off-by: James Bottomley <James.Bottomley@suse.de>
This commit is contained in:
Mike Christie 2009-11-05 11:18:09 -06:00 committed by James Bottomley
parent 97ee20886c
commit 2bc1c59dbd
1 changed files with 3 additions and 2 deletions
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5
drivers/scsi/scsi_transport_fc.c
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@ -3809,8 +3809,9 @@ fc_bsg_request_handler(struct request_queue *q, struct Scsi_Host *shost,
return;
while (!blk_queue_plugged(q)) {
if (rport && (rport->port_state == FC_PORTSTATE_BLOCKED))
break;
if (rport && (rport->port_state == FC_PORTSTATE_BLOCKED) &&
!(rport->flags & FC_RPORT_FAST_FAIL_TIMEDOUT))
break;
req = blk_fetch_request(q);
if (!req)