Re: [PATCH] scsi: core: run queue in case of IO queueing failure

[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index]

 



On 2020-07-19 18:32, Ming Lei wrote:
> diff --git a/drivers/scsi/scsi_lib.c b/drivers/scsi/scsi_lib.c
> index b9adee0a9266..9798fbffe307 100644
> --- a/drivers/scsi/scsi_lib.c
> +++ b/drivers/scsi/scsi_lib.c
> @@ -564,6 +564,15 @@ static void scsi_mq_uninit_cmd(struct scsi_cmnd *cmd)
>  	scsi_uninit_cmd(cmd);
>  }
>  
> +static void scsi_run_queue_async(struct scsi_device *sdev)
> +{
> +	if (scsi_target(sdev)->single_lun ||
> +	    !list_empty(&sdev->host->starved_list))
> +		kblockd_schedule_work(&sdev->requeue_work);
> +	else
> +		blk_mq_run_hw_queues(sdev->request_queue, true);
> +}
> +
>  /* Returns false when no more bytes to process, true if there are more */
>  static bool scsi_end_request(struct request *req, blk_status_t error,
>  		unsigned int bytes)
> @@ -608,11 +617,7 @@ static bool scsi_end_request(struct request *req, blk_status_t error,
>  
>  	__blk_mq_end_request(req, error);
>  
> -	if (scsi_target(sdev)->single_lun ||
> -	    !list_empty(&sdev->host->starved_list))
> -		kblockd_schedule_work(&sdev->requeue_work);
> -	else
> -		blk_mq_run_hw_queues(q, true);
> +	scsi_run_queue_async(sdev);
>  
>  	percpu_ref_put(&q->q_usage_counter);
>  	return false;
> @@ -1721,6 +1726,7 @@ static blk_status_t scsi_queue_rq(struct blk_mq_hw_ctx *hctx,
>  		 */
>  		if (req->rq_flags & RQF_DONTPREP)
>  			scsi_mq_uninit_cmd(cmd);
> +		scsi_run_queue_async(sdev);
>  		break;
>  	}
>  	return ret;

Looks good to me. Feel free to add:

Reviewed-by: Bart Van Assche <bvanassche@xxxxxxx>



[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index]
[Index of Archives]     [SCSI Target Devel]     [Linux SCSI Target Infrastructure]     [Kernel Newbies]     [IDE]     [Security]     [Git]     [Netfilter]     [Bugtraq]     [Yosemite News]     [MIPS Linux]     [ARM Linux]     [Linux Security]     [Linux RAID]     [Linux ATA RAID]     [Linux IIO]     [Samba]     [Device Mapper]

  Powered by Linux