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[SCSI] qla2xxx: Fix for a multiqueue bug in CPU affinity mode 

Hold the hardware lock while do the response completion in work queue threads as
it involves sharing a common request queue among multiple threads.

Signed-off-by: Anirban Chakraborty <anirban.chakraborty@qlogic.com>
Signed-off-by: Giridhar Malavali <giridhar.malavali@qlogic.com>
Signed-off-by: James Bottomley <James.Bottomley@suse.de>
This commit is contained in:
Anirban Chakraborty 2009-12-15 21:29:45 -08:00 committed by James Bottomley
parent 3064ff39b8
commit 5c66f5d193
1 changed files with 2 additions and 0 deletions
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2
drivers/scsi/qla2xxx/qla_mid.c
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@ -639,8 +639,10 @@ static void qla_do_work(struct work_struct *work)
struct rsp_que *rsp = container_of(work, struct rsp_que, q_work);
struct scsi_qla_host *vha;
spin_lock_irq(&rsp->hw->hardware_lock);
vha = qla25xx_get_host(rsp);
qla24xx_process_response_queue(vha, rsp);
spin_unlock_irq(&rsp->hw->hardware_lock);
}
/* create response queue */