Re: [PATCH v2 28/28] mm: lru: add VM_WARN_ON_ONCE_FOLIO to lru maintenance helpers

[Johannes Weiner]

On Wed, Dec 17, 2025 at 03:27:52PM +0800, Qi Zheng wrote:
> From: Muchun Song <songmuchun@xxxxxxxxxxxxx>
> 
> We must ensure the folio is deleted from or added to the correct lruvec
> list. So, add VM_WARN_ON_ONCE_FOLIO() to catch invalid users. The
> VM_BUG_ON_PAGE() in move_pages_to_lru() can be removed as
> add_page_to_lru_list() will perform the necessary check.
> 
> Signed-off-by: Muchun Song <songmuchun@xxxxxxxxxxxxx>
> Acked-by: Roman Gushchin <roman.gushchin@xxxxxxxxx>
> Signed-off-by: Qi Zheng <zhengqi.arch@xxxxxxxxxxxxx>

Acked-by: Johannes Weiner <hannes@xxxxxxxxxxx>