Re: [PATCH RESEND v2 07/10] block, bfq: remove redundant check in bfq_put_cooperator

From: Jan Kara
Date: Mon Jan 02 2023 - 10:57:37 EST


On Fri 23-12-22 03:16:38, Kemeng Shi wrote:
> We have already avoided a circular list in bfq_setup_merge (see comments
> in bfq_setup_merge() for details), so bfq_queue will not appear in it's
> new_bfqq list. Just remove this check.
>
> Signed-off-by: Kemeng Shi <shikemeng@xxxxxxxxxxxxxxx>

Looks good to me. Feel free to add:

Reviewed-by: Jan Kara <jack@xxxxxxx>

Honza

> ---
> block/bfq-iosched.c | 2 --
> 1 file changed, 2 deletions(-)
>
> diff --git a/block/bfq-iosched.c b/block/bfq-iosched.c
> index 7c91d16dbf6f..89995815dbae 100644
> --- a/block/bfq-iosched.c
> +++ b/block/bfq-iosched.c
> @@ -5273,8 +5273,6 @@ void bfq_put_cooperator(struct bfq_queue *bfqq)
> */
> __bfqq = bfqq->new_bfqq;
> while (__bfqq) {
> - if (__bfqq == bfqq)
> - break;
> next = __bfqq->new_bfqq;
> bfq_put_queue(__bfqq);
> __bfqq = next;
> --
> 2.30.0
>
--
Jan Kara <jack@xxxxxxxx>
SUSE Labs, CR