Re: [PATCH v2 1/1] mm: kfence: apply kmemleak_ignore_phys on early allocated pool

From: Catalin Marinas
Date: Wed Jun 29 2022 - 17:39:45 EST


On Tue, Jun 28, 2022 at 07:37:11PM +0800, yee.lee@xxxxxxxxxxxx wrote:
> From: Yee Lee <yee.lee@xxxxxxxxxxxx>
>
> This patch solves two issues.
>
> (1) The pool allocated by memblock needs to unregister from
> kmemleak scanning. Apply kmemleak_ignore_phys to replace the
> original kmemleak_free as its address now is stored in the phys tree.
>
> (2) The pool late allocated by page-alloc doesn't need to unregister.
> Move out the freeing operation from its call path.
>
> Suggested-by: Catalin Marinas <catalin.marinas@xxxxxxx>
> Suggested-by: Marco Elver <elver@xxxxxxxxxx>
> Signed-off-by: Yee Lee <yee.lee@xxxxxxxxxxxx>

Reviewed-by: Catalin Marinas <catalin.marinas@xxxxxxx>