linux-kernel - Re: [PATCH 5/8] mm/percpu: replace the goto with break

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Date:   Mon, 24 Oct 2022 10:00:09 -0700
From:   Dennis Zhou <dennis@...nel.org>
To:     Baoquan He <bhe@...hat.com>
Cc:     linux-kernel@...r.kernel.org, Tejun Heo <tj@...nel.org>,
        Christoph Lameter <cl@...ux.com>,
        Andrew Morton <akpm@...ux-foundation.org>, linux-mm@...ck.org
Subject: Re: [PATCH 5/8] mm/percpu: replace the goto with break

On Mon, Oct 24, 2022 at 04:14:32PM +0800, Baoquan He wrote:
> In function pcpu_reclaim_populated(), the line of goto jumping is
> unnecessary since the label 'end_chunk' is near the end of the for
> loop, use break instead.
> 
> Signed-off-by: Baoquan He <bhe@...hat.com>
> ---
>  mm/percpu.c | 3 +--
>  1 file changed, 1 insertion(+), 2 deletions(-)
> 
> diff --git a/mm/percpu.c b/mm/percpu.c
> index 09e407338573..954abf916c7d 100644
> --- a/mm/percpu.c
> +++ b/mm/percpu.c
> @@ -2167,7 +2167,7 @@ static void pcpu_reclaim_populated(void)
>  			/* reintegrate chunk to prevent atomic alloc failures */
>  			if (pcpu_nr_empty_pop_pages < PCPU_EMPTY_POP_PAGES_HIGH) {
>  				reintegrate = true;
> -				goto end_chunk;
> +				break;
>  			}
>  
>  			/*
> @@ -2203,7 +2203,6 @@ static void pcpu_reclaim_populated(void)
>  			end = -1;
>  		}
>  
> -end_chunk:
>  		/* batch tlb flush per chunk to amortize cost */
>  		if (freed_page_start < freed_page_end) {
>  			spin_unlock_irq(&pcpu_lock);
> -- 
> 2.34.1
> 
> 

Acked-by: Dennis Zhou <dennis@...nel.org>

Thanks,
Dennis