Re: [RFC PATCH v5 1/4] mm: add page_counter_margin()

[David Hildenbrand (Arm)]

On 7/30/26 14:23, Xueyuan Chen wrote:
> From: Johannes Weiner <hannes@xxxxxxxxxxx>
> 
> mem_cgroup_get_nr_swap_pages() open-codes the remaining capacity across
> the memcg swap counter hierarchy.
> 
> Add page_counter_margin() to return the minimum usable space from a page
> counter to the root, and use it in mem_cgroup_get_nr_swap_pages(). This
> is a pure refactoring with no intended behavior change.
> 
> Signed-off-by: Johannes Weiner <hannes@xxxxxxxxxxx>
> Signed-off-by: Xueyuan Chen <xueyuan.chen21@xxxxxxxxx>
> ---

Reviewed-by: David Hildenbrand (Arm) <david@xxxxxxxxxx>

-- 
Cheers,

David