* [RFC v4 06/19] pm8001: Set SHT->unlocked_qcmd=1 for libsas queuecommand()
@ 2010-09-28 2:06 Nicholas A. Bellinger
0 siblings, 0 replies; only message in thread
From: Nicholas A. Bellinger @ 2010-09-28 2:06 UTC (permalink / raw)
To: linux-scsi, linux-kernel, Vasu Dev, Tim Chen, Andi Kleen
Cc: James Smart, Andrew Vasquez, FUJITA Tomonori, Hannes Reinecke,
Joe Eykholt, Christoph Hellwig, Jon Hawley, MPTFusionLinux,
eata.c maintainer, Luben Tuikov, mvsas maintainer,
pm8001 maintainer Jack Wang, Nicholas Bellinger
From: Nicholas Bellinger <nab@linux-iscsi.org>
This patch updates pm8001 to set struct scsi_host_template->unlocked_qcmd=1
because it is using generic libsas sas_queuecommand() code which now can be
run without struct Scsi_Host->host_lock held following the original
host_lock unlock -> do_work() -> lock optimization in sas_queuecommand().
Signed-off-by: Nicholas A. Bellinger <nab@linux-iscsi.org>
---
drivers/scsi/pm8001/pm8001_init.c | 1 +
1 files changed, 1 insertions(+), 0 deletions(-)
diff --git a/drivers/scsi/pm8001/pm8001_init.c b/drivers/scsi/pm8001/pm8001_init.c
index f8c86b2..96e1dd6 100644
--- a/drivers/scsi/pm8001/pm8001_init.c
+++ b/drivers/scsi/pm8001/pm8001_init.c
@@ -69,6 +69,7 @@ static struct scsi_host_template pm8001_sht = {
.can_queue = 1,
.cmd_per_lun = 1,
.this_id = -1,
+ .unlocked_qcmd = 1,
.sg_tablesize = SG_ALL,
.max_sectors = SCSI_DEFAULT_MAX_SECTORS,
.use_clustering = ENABLE_CLUSTERING,
--
1.7.3
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