Re: [PATCH] mm: Remove is_migrate_highatomic()

[Johannes Weiner]

On Thu, Aug 21, 2025 at 01:29:47PM +0000, Brendan Jackman wrote:
> There are 3 potential reasons for is_migrate_*() helpers:
> 
> 1. They represent higher-level attributes of migratetypes, like
>    is_migrate_movable()
> 
> 2. They are ifdef'd, like is_migrate_isolate().
> 
> 3. For consistency with an is_migrate_*_page() helper, also like
>    is_migrate_isolate().
> 
> It looks like is_migrate_highatomic() was for case 3, but that was
> removed in commit e0932b6c1f94 ("mm: page_alloc: consolidate free page
> accounting").
> 
> So remove the indirection and go back to a simple comparison.
> 
> Signed-off-by: Brendan Jackman <jackmanb@xxxxxxxxxx>

Oops! Thanks.

Acked-by: Johannes Weiner <hannes@xxxxxxxxxxx>