On Fri, 25 Apr 2025, Vlastimil Babka wrote:
> @@ -5924,8 +5948,15 @@ void slab_free(struct kmem_cache *s, struct slab
> *slab, void *object,
> if (unlikely(!slab_free_hook(s, object, slab_want_init_on_free(s),
> false)))
> return;
>
> - if (!s->cpu_sheaves || !free_to_pcs(s, object))
> - do_slab_free(s, slab, object, object, 1, addr);
> + if (s->cpu_sheaves) {
> + if (likely(!IS_ENABLED(CONFIG_NUMA) ||
> + slab_nid(slab) == numa_node_id())) {
Ah. ok this removes remote object freeing to the pcs.
numa_mem_id() is needed to support memory less numa nodes.
> + free_to_pcs(s, object);
> + return;
> + }
> + }
> +
> + do_slab_free(s, slab, object, object, 1, addr);
> }
>
> #ifdef CONFIG_MEMCG
>
>
