Re: [PATCH v5 31/32] mm: memcontrol: eliminate the problem of dying memory cgroup for LRU folios

[Shakeel Butt]

On Wed, Feb 25, 2026 at 03:53:14PM +0800, Qi Zheng wrote:
> From: Muchun Song <songmuchun@xxxxxxxxxxxxx>
> 
> Now that everything is set up, switch folio->memcg_data pointers to
> objcgs, update the accessors, and execute reparenting on cgroup death.
> 
> Finally, folio->memcg_data of LRU folios and kmem folios will always
> point to an object cgroup pointer. The folio->memcg_data of slab
> folios will point to an vector of object cgroups.
> 
> Signed-off-by: Muchun Song <songmuchun@xxxxxxxxxxxxx>
> Signed-off-by: Qi Zheng <zhengqi.arch@xxxxxxxxxxxxx>

Acked-by: Shakeel Butt <shakeel.butt@xxxxxxxxx>