From mboxrd@z Thu Jan 1 00:00:00 1970 From: "Nicholas A. Bellinger" Subject: [RFC v4 04/19] aic94xx: Set SHT->unlocked_qcmd=1 for libsas queuecommand() Date: Mon, 27 Sep 2010 19:05:41 -0700 Message-ID: <1285639541-7284-1-git-send-email-nab@linux-iscsi.org> Return-path: Received: from smtp104.sbc.mail.mud.yahoo.com ([68.142.198.203]:33700 "HELO smtp104.sbc.mail.mud.yahoo.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with SMTP id S933315Ab0I1CFr (ORCPT ); Mon, 27 Sep 2010 22:05:47 -0400 Sender: linux-scsi-owner@vger.kernel.org List-Id: linux-scsi@vger.kernel.org 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 This patch updates aic94xx 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 --- drivers/scsi/aic94xx/aic94xx_init.c | 1 + 1 files changed, 1 insertions(+), 0 deletions(-) diff --git a/drivers/scsi/aic94xx/aic94xx_init.c b/drivers/scsi/aic94xx/aic94xx_init.c index 3b7e83d..b236d720 100644 --- a/drivers/scsi/aic94xx/aic94xx_init.c +++ b/drivers/scsi/aic94xx/aic94xx_init.c @@ -77,6 +77,7 @@ static struct scsi_host_template aic94xx_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