Subject: Re: [PATCH v1 20/29] mm: convert "movable" flag in page->mapping to a page flag

From: Harry Yoo <[email-masked]>
Date: Wed, 2 Jul 2025 20:54:07 +0900

On Mon, Jun 30, 2025 at 03:00:01PM +0200, David Hildenbrand wrote:
> Instead, let's use a page flag. As the page flag can result in
> false-positives, glue it to the page types for which we
> support/implement movable_ops page migration.
> 
> The flag reused by PageMovableOps() might be sued by other pages, so
> warning in case it is set in page_has_movable_ops() might result in
> false-positive warnings.
> 
> Reviewed-by: Zi Yan <[email-masked]>
> Signed-off-by: David Hildenbrand <[email-masked]>
> ---

LGTM,
Reviewed-by: Harry Yoo <[email-masked]>

With a question: is there any reason to change the page flag
operations to use atomic bit ops? (.e.g, using SetPageMovableOps instead
of __SetPageMovableOps)

-- 
Cheers,
Harry / Hyeonggon