Re: [PATCH mm v4 16/39] kasan: define KASAN_VMALLOC_INVALID for SW_TAGS
From: Alexander Potapenko
Date: Tue Dec 21 2021 - 04:23:42 EST
On Mon, Dec 20, 2021 at 11:00 PM <andrey.konovalov@xxxxxxxxx> wrote:
>
> From: Andrey Konovalov <andreyknvl@xxxxxxxxxx>
>
> In preparation for adding vmalloc support to SW_TAGS KASAN,
> provide a KASAN_VMALLOC_INVALID definition for it.
>
> HW_TAGS KASAN won't be using this value, as it falls back onto
> page_alloc for poisoning freed vmalloc() memory.
>
> Signed-off-by: Andrey Konovalov <andreyknvl@xxxxxxxxxx>
Reviewed-by: Alexander Potapenko <glider@xxxxxxxxxx>