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SubjectRe: [PATCH] kmemcheck: add scheduling point to kmemleak_scan
Please fix the subject as the tool is called "kmemleak" rather than
"kmemcheck".

On Fri, Nov 17, 2017 at 03:03:56PM +0800, Yisheng Xie wrote:
> diff --git a/mm/kmemleak.c b/mm/kmemleak.c
> index e4738d5..e9f2e86 100644
> --- a/mm/kmemleak.c
> +++ b/mm/kmemleak.c
> @@ -1523,6 +1523,8 @@ static void kmemleak_scan(void)
> if (page_count(page) == 0)
> continue;
> scan_block(page, page + 1, NULL);
> + if (!(pfn % 1024))
> + cond_resched();

For consistency with the other places where we call cond_resched() in
kmemleak, I would use MAX_SCAN_SIZE. Something like

if (!(pfn % (MAX_SCAN_SIZE / sizeof(page))))
cont_resched();

Thanks.

--
Catalin

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