Re: [PATCH v2 1/7] mm: list_lru: lock_list_lru_of_memcg() cannot return NULL if !skip_empty

[Shakeel Butt]

On Thu, Mar 12, 2026 at 04:51:49PM -0400, Johannes Weiner wrote:
> skip_empty is only for the shrinker to abort and skip a list that's
> empty or whose cgroup is being deleted.
> 
> For list additions and deletions, the cgroup hierarchy is walked
> upwards until a valid list_lru head is found, or it will fall back to
> the node list. Acquiring the lock won't fail. Remove the NULL checks
> in those callers.
> 
> Signed-off-by: Johannes Weiner <hannes@xxxxxxxxxxx>
> ---

What do you think about squashing the following into this patch?