Re: [PATCH RFC v2 21/21] kasan: clarify comment in __kasan_kfree_large

[Dmitry Vyukov]

On Thu, Oct 22, 2020 at 3:20 PM Andrey Konovalov <andreyknvl@xxxxxxxxxx> wrote:
>
> Currently it says that the memory gets poisoned by page_alloc code.
> Clarify this by mentioning the specific callback that poisons the
> memory.
>
> Signed-off-by: Andrey Konovalov <andreyknvl@xxxxxxxxxx>
> Link: https://linux-review.googlesource.com/id/I1334dffb69b87d7986fab88a1a039cc3ea764725

Reviewed-by: Dmitry Vyukov <dvyukov@xxxxxxxxxx>

> ---
>  mm/kasan/common.c | 2 +-
>  1 file changed, 1 insertion(+), 1 deletion(-)
>
> diff --git a/mm/kasan/common.c b/mm/kasan/common.c
> index 3cd56861eb11..54af79aa8d3f 100644
> --- a/mm/kasan/common.c
> +++ b/mm/kasan/common.c
> @@ -445,5 +445,5 @@ void __kasan_kfree_large(void *ptr, unsigned long ip)
>  {
>         if (ptr != page_address(virt_to_head_page(ptr)))
>                 kasan_report_invalid_free(ptr, ip);
> -       /* The object will be poisoned by page_alloc. */
> +       /* The object will be poisoned by kasan_free_pages(). */
>  }
> --
> 2.29.0.rc1.297.gfa9743e501-goog
>