[PATCH 2/6] nvme: add NVME_REQ_CANCELLED flag in nvme_cancel_request()

[Chao Leng]

Reviewed-by: Chao Leng <lengchao at huawei.com>

On 2021/2/25 18:55, Hannes Reinecke wrote:
> NVME_REQ_CANCELLED is translated into -EINTR in nvme_submit_sync_cmd(),
> so we should be setting this flags during nvme_cancel_request() to
> ensure that the callers to nvme_submit_sync_cmd() will get the correct
> error code when the controller is reset.
> 
> Signed-off-by: Hannes Reinecke <hare at suse.de>
> Reviewed-by: Daniel Wagner <dwagner at suse.de>
> Reviewed-by: Keith Busch <kbusch at kernel.org>
> ---
>   drivers/nvme/host/core.c | 1 +
>   1 file changed, 1 insertion(+)
> 
> diff --git a/drivers/nvme/host/core.c b/drivers/nvme/host/core.c
> index 13ed7d3fbbb3..04dc85e0810c 100644
> --- a/drivers/nvme/host/core.c
> +++ b/drivers/nvme/host/core.c
> @@ -380,6 +380,7 @@ bool nvme_cancel_request(struct request *req, void *data, bool reserved)
>   		return true;
>   
>   	nvme_req(req)->status = NVME_SC_HOST_ABORTED_CMD;
> +	nvme_req(req)->flags |= NVME_REQ_CANCELLED;
>   	blk_mq_complete_request(req);
>   	return true;
>   }
>