diff mbox series

[v16,09/26] mq-deadline: Remove a local variable

Message ID 20241119002815.600608-10-bvanassche@acm.org (mailing list archive)
State New
Headers show
Series Improve write performance for zoned UFS devices | expand

Commit Message

Bart Van Assche Nov. 19, 2024, 12:27 a.m. UTC
Since commit fde02699c242 ("block: mq-deadline: Remove support for zone
write locking"), the local variable 'insert_before' is assigned once and
is used once. Hence remove this local variable.

Signed-off-by: Bart Van Assche <bvanassche@acm.org>
---
 block/mq-deadline.c | 5 +----
 1 file changed, 1 insertion(+), 4 deletions(-)

Comments

Damien Le Moal Nov. 19, 2024, 7:38 a.m. UTC | #1
On 11/19/24 09:27, Bart Van Assche wrote:
> Since commit fde02699c242 ("block: mq-deadline: Remove support for zone
> write locking"), the local variable 'insert_before' is assigned once and
> is used once. Hence remove this local variable.
> 
> Signed-off-by: Bart Van Assche <bvanassche@acm.org>

Looks good.

Reviewed-by: Damien Le Moal <dlemoal@kernel.org>

This patch can be sent separately from this series I think. It does not really
belong here, no ?

> ---
>  block/mq-deadline.c | 5 +----
>  1 file changed, 1 insertion(+), 4 deletions(-)
> 
> diff --git a/block/mq-deadline.c b/block/mq-deadline.c
> index acdc28756d9d..2edf84b1bc2a 100644
> --- a/block/mq-deadline.c
> +++ b/block/mq-deadline.c
> @@ -699,8 +699,6 @@ static void dd_insert_request(struct blk_mq_hw_ctx *hctx, struct request *rq,
>  		list_add(&rq->queuelist, &per_prio->dispatch);
>  		rq->fifo_time = jiffies;
>  	} else {
> -		struct list_head *insert_before;
> -
>  		deadline_add_rq_rb(per_prio, rq);
>  
>  		if (rq_mergeable(rq)) {
> @@ -713,8 +711,7 @@ static void dd_insert_request(struct blk_mq_hw_ctx *hctx, struct request *rq,
>  		 * set expire time and add to fifo list
>  		 */
>  		rq->fifo_time = jiffies + dd->fifo_expire[data_dir];
> -		insert_before = &per_prio->fifo_list[data_dir];
> -		list_add_tail(&rq->queuelist, insert_before);
> +		list_add_tail(&rq->queuelist, &per_prio->fifo_list[data_dir]);
>  	}
>  }
>
Bart Van Assche Nov. 19, 2024, 9:11 p.m. UTC | #2
On 11/18/24 11:38 PM, Damien Le Moal wrote:
> On 11/19/24 09:27, Bart Van Assche wrote:
>> Since commit fde02699c242 ("block: mq-deadline: Remove support for zone
>> write locking"), the local variable 'insert_before' is assigned once and
>> is used once. Hence remove this local variable.
>>
>> Signed-off-by: Bart Van Assche <bvanassche@acm.org>
> 
> Looks good.
> 
> Reviewed-by: Damien Le Moal <dlemoal@kernel.org>
> 
> This patch can be sent separately from this series I think. It does not really
> belong here, no ?

Thanks for the review. There is another mq-deadline change in this
series that depends on this change ("blk-mq: Restore the zoned write
order when requeuing"). This is why I included this patch in this
series.

Bart.
diff mbox series

Patch

diff --git a/block/mq-deadline.c b/block/mq-deadline.c
index acdc28756d9d..2edf84b1bc2a 100644
--- a/block/mq-deadline.c
+++ b/block/mq-deadline.c
@@ -699,8 +699,6 @@  static void dd_insert_request(struct blk_mq_hw_ctx *hctx, struct request *rq,
 		list_add(&rq->queuelist, &per_prio->dispatch);
 		rq->fifo_time = jiffies;
 	} else {
-		struct list_head *insert_before;
-
 		deadline_add_rq_rb(per_prio, rq);
 
 		if (rq_mergeable(rq)) {
@@ -713,8 +711,7 @@  static void dd_insert_request(struct blk_mq_hw_ctx *hctx, struct request *rq,
 		 * set expire time and add to fifo list
 		 */
 		rq->fifo_time = jiffies + dd->fifo_expire[data_dir];
-		insert_before = &per_prio->fifo_list[data_dir];
-		list_add_tail(&rq->queuelist, insert_before);
+		list_add_tail(&rq->queuelist, &per_prio->fifo_list[data_dir]);
 	}
 }