linux-kernel - [RFC v4 14/19] buslogic: Remove host_lock unlock() + lock() from BusLogic

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Date:	Mon, 27 Sep 2010 19:07:31 -0700
From:	"Nicholas A. Bellinger" <nab@...ux-iscsi.org>
To:	linux-scsi <linux-scsi@...r.kernel.org>,
	linux-kernel <linux-kernel@...r.kernel.org>,
	Vasu Dev <vasu.dev@...ux.intel.com>,
	Tim Chen <tim.c.chen@...ux.intel.com>,
	Andi Kleen <ak@...ux.intel.com>,
	Matthew Wilcox <willy@...ux.intel.com>,
	James Bottomley <James.Bottomley@...e.de>,
	Mike Christie <michaelc@...wisc.edu>,
	Jens Axboe <jaxboe@...ionio.com>
Cc:	James Smart <james.smart@...lex.com>,
	Andrew Vasquez <andrew.vasquez@...gic.com>,
	FUJITA Tomonori <fujita.tomonori@....ntt.co.jp>,
	Hannes Reinecke <hare@...e.de>,
	Joe Eykholt <jeykholt@...co.com>,
	Christoph Hellwig <hch@....de>,
	Jon Hawley <warthog9@...nel.org>,
	MPTFusionLinux <DL-MPTFusionLinux@....com>,
	"eata.c maintainer" <dario.ballabio@...ind.it>,
	Luben Tuikov <ltuikov@...oo.com>,
	mvsas maintainer <kewei@...vell.com>,
	pm8001 maintainer Jack Wang <jack_wang@...sh.com>,
	Nicholas Bellinger <nab@...ux-iscsi.org>
Subject: [RFC v4 14/19] buslogic: Remove host_lock unlock() + lock() from BusLogic_QueueCommand()

From: Nicholas Bellinger <nab@...ux-iscsi.org>

This patch removes the now legacy host_lock unlock() + lock() optimization
from buslogic.c:BusLogic_QueueCommand()

Signed-off-by: Nicholas A. Bellinger <nab@...ux-iscsi.org>
---
 drivers/scsi/BusLogic.c |    4 ----
 1 files changed, 0 insertions(+), 4 deletions(-)

diff --git a/drivers/scsi/BusLogic.c b/drivers/scsi/BusLogic.c
index fc0b4b8..f39b4fc 100644
--- a/drivers/scsi/BusLogic.c
+++ b/drivers/scsi/BusLogic.c
@@ -2837,9 +2837,7 @@ static int BusLogic_QueueCommand(struct scsi_cmnd *Command, void (*CompletionRou
 	 */
 	CCB = BusLogic_AllocateCCB(HostAdapter);
 	if (CCB == NULL) {
-		spin_unlock_irq(HostAdapter->SCSI_Host->host_lock);
 		BusLogic_Delay(1);
-		spin_lock_irq(HostAdapter->SCSI_Host->host_lock);
 		CCB = BusLogic_AllocateCCB(HostAdapter);
 		if (CCB == NULL) {
 			Command->result = DID_ERROR << 16;
@@ -2965,10 +2963,8 @@ static int BusLogic_QueueCommand(struct scsi_cmnd *Command, void (*CompletionRou
 		   error as a Host Adapter Hard Reset should be initiated soon.
 		 */
 		if (!BusLogic_WriteOutgoingMailbox(HostAdapter, BusLogic_MailboxStartCommand, CCB)) {
-			spin_unlock_irq(HostAdapter->SCSI_Host->host_lock);
 			BusLogic_Warning("Unable to write Outgoing Mailbox - " "Pausing for 1 second\n", HostAdapter);
 			BusLogic_Delay(1);
-			spin_lock_irq(HostAdapter->SCSI_Host->host_lock);
 			if (!BusLogic_WriteOutgoingMailbox(HostAdapter, BusLogic_MailboxStartCommand, CCB)) {
 				BusLogic_Warning("Still unable to write Outgoing Mailbox - " "Host Adapter Dead?\n", HostAdapter);
 				BusLogic_DeallocateCCB(CCB);
-- 
1.7.3

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