Re: [PATCH 4/4] mm/gup: adapt get_user_page_vma_remote() to never return NULL

[Catalin Marinas]

On Sun, Oct 01, 2023 at 05:00:05PM +0100, Lorenzo Stoakes wrote:
> get_user_pages_remote() will never return 0 except in the case of
> FOLL_NOWAIT being specified, which we explicitly disallow.
> 
> This simplifies error handling for the caller and avoids the awkwardness of
> dealing with both errors and failing to pin. Failing to pin here is an
> error.
> 
> Suggested-by: Arnd Bergmann <arnd@xxxxxxxx>
> Signed-off-by: Lorenzo Stoakes <lstoakes@xxxxxxxxx>
> ---
>  arch/arm64/kernel/mte.c |  4 ++--

For arm64:

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