From f999f4c1961fe5399fd66c95860cc2d5d67e591e Mon Sep 17 00:00:00 2001
From: Andrew Vasquez <andrew.vasquez@qlogic.com>
Date: Wed, 3 Jun 2009 09:55:28 -0700
Subject: [SCSI] qla2xxx: Reduce lock-contention during do-work processing.
Queued work processing will now be serialized with its own
lower-priority spinlock. This also simplifies the work-queue
interface for future work-queue consumers.
Signed-off-by: Andrew Vasquez <andrew.vasquez@qlogic.com>
Signed-off-by: James Bottomley <James.Bottomley@HansenPartnership.com>
---
drivers/scsi/qla2xxx/qla_def.h | 2 ++
1 file changed, 2 insertions(+)
(limited to 'drivers/scsi/qla2xxx/qla_def.h')
diff --git a/drivers/scsi/qla2xxx/qla_def.h b/drivers/scsi/qla2xxx/qla_def.h
index 88ddae0e2b88..00aa48d975a6 100644
--- a/drivers/scsi/qla2xxx/qla_def.h
+++ b/drivers/scsi/qla2xxx/qla_def.h
@@ -2561,6 +2561,8 @@ typedef struct scsi_qla_host {
struct list_head list;
struct list_head vp_fcports; /* list of fcports */
struct list_head work_list;
+ spinlock_t work_lock;
+
/* Commonly used flags and state information. */
struct Scsi_Host *host;
unsigned long host_no;
--
cgit v1.2.1