ACK
On Mar 9, 2012, at 3:13 AM, santosh nayak wrote:
> From: Santosh Nayak <santoshprasadnayak@xxxxxxxxx>
>
> Use spin_lock_irqsave() for task_state.
>
> Signed-off-by: Santosh Nayak <santoshprasadnayak@xxxxxxxxx>
> ---
> drivers/scsi/pm8001/pm8001_hwi.c | 18 ++++++++++--------
> 1 files changed, 10 insertions(+), 8 deletions(-)
>
> diff --git a/drivers/scsi/pm8001/pm8001_hwi.c b/drivers/scsi/pm8001/pm8001_hwi.c
> index 3619f6e..9d82ee5 100644
> --- a/drivers/scsi/pm8001/pm8001_hwi.c
> +++ b/drivers/scsi/pm8001/pm8001_hwi.c
> @@ -2093,6 +2093,7 @@ mpi_sata_completion(struct pm8001_hba_info *pm8001_ha, void *piomb)
> struct ata_task_resp *resp ;
> u32 *sata_resp;
> struct pm8001_device *pm8001_dev;
> + unsigned long flags;
>
> psataPayload = (struct sata_completion_resp *)(piomb + 4);
> status = le32_to_cpu(psataPayload->status);
> @@ -2382,26 +2383,26 @@ mpi_sata_completion(struct pm8001_hba_info *pm8001_ha, void *piomb)
> ts->stat = SAS_DEV_NO_RESPONSE;
> break;
> }
> - spin_lock_irq(&t->task_state_lock);
> + spin_lock_irqsave(&t->task_state_lock, flags);
> t->task_state_flags &= ~SAS_TASK_STATE_PENDING;
> t->task_state_flags &= ~SAS_TASK_AT_INITIATOR;
> t->task_state_flags |= SAS_TASK_STATE_DONE;
> if (unlikely((t->task_state_flags & SAS_TASK_STATE_ABORTED))) {
> - spin_unlock_irq(&t->task_state_lock);
> + spin_unlock_irqrestore(&t->task_state_lock, flags);
> PM8001_FAIL_DBG(pm8001_ha,
> pm8001_printk("task 0x%p done with io_status 0x%x"
> " resp 0x%x stat 0x%x but aborted by upper layer!\n",
> t, status, ts->resp, ts->stat));
> pm8001_ccb_task_free(pm8001_ha, t, ccb, tag);
> } else if (t->uldd_task) {
> - spin_unlock_irq(&t->task_state_lock);
> + spin_unlock_irqrestore(&t->task_state_lock, flags);
> pm8001_ccb_task_free(pm8001_ha, t, ccb, tag);
> mb();/* ditto */
> spin_unlock_irq(&pm8001_ha->lock);
> t->task_done(t);
> spin_lock_irq(&pm8001_ha->lock);
> } else if (!t->uldd_task) {
> - spin_unlock_irq(&t->task_state_lock);
> + spin_unlock_irqrestore(&t->task_state_lock, flags);
> pm8001_ccb_task_free(pm8001_ha, t, ccb, tag);
> mb();/*ditto*/
> spin_unlock_irq(&pm8001_ha->lock);
> @@ -2423,6 +2424,7 @@ static void mpi_sata_event(struct pm8001_hba_info *pm8001_ha , void *piomb)
> u32 tag = le32_to_cpu(psataPayload->tag);
> u32 port_id = le32_to_cpu(psataPayload->port_id);
> u32 dev_id = le32_to_cpu(psataPayload->device_id);
> + unsigned long flags;
>
> ccb = &pm8001_ha->ccb_info[tag];
> t = ccb->task;
> @@ -2593,26 +2595,26 @@ static void mpi_sata_event(struct pm8001_hba_info *pm8001_ha , void *piomb)
> ts->stat = SAS_OPEN_TO;
> break;
> }
> - spin_lock_irq(&t->task_state_lock);
> + spin_lock_irqsave(&t->task_state_lock, flags);
> t->task_state_flags &= ~SAS_TASK_STATE_PENDING;
> t->task_state_flags &= ~SAS_TASK_AT_INITIATOR;
> t->task_state_flags |= SAS_TASK_STATE_DONE;
> if (unlikely((t->task_state_flags & SAS_TASK_STATE_ABORTED))) {
> - spin_unlock_irq(&t->task_state_lock);
> + spin_unlock_irqrestore(&t->task_state_lock, flags);
> PM8001_FAIL_DBG(pm8001_ha,
> pm8001_printk("task 0x%p done with io_status 0x%x"
> " resp 0x%x stat 0x%x but aborted by upper layer!\n",
> t, event, ts->resp, ts->stat));
> pm8001_ccb_task_free(pm8001_ha, t, ccb, tag);
> } else if (t->uldd_task) {
> - spin_unlock_irq(&t->task_state_lock);
> + spin_unlock_irqrestore(&t->task_state_lock, flags);
> pm8001_ccb_task_free(pm8001_ha, t, ccb, tag);
> mb();/* ditto */
> spin_unlock_irq(&pm8001_ha->lock);
> t->task_done(t);
> spin_lock_irq(&pm8001_ha->lock);
> } else if (!t->uldd_task) {
> - spin_unlock_irq(&t->task_state_lock);
> + spin_unlock_irqrestore(&t->task_state_lock, flags);
> pm8001_ccb_task_free(pm8001_ha, t, ccb, tag);
> mb();/*ditto*/
> spin_unlock_irq(&pm8001_ha->lock);
--
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