On Tue, Dec 07, 2021 at 05:40:13PM -0500, Nico Pache wrote:
> +++ b/mm/vmscan.c
> @@ -222,13 +222,16 @@ static int expand_one_shrinker_info(struct mem_cgroup *memcg,
> int size = map_size + defer_size;
>
> for_each_node(nid) {
> + int tmp = nid;
> pn = memcg->nodeinfo[nid];
> old = shrinker_info_protected(memcg, nid);
> /* Not yet online memcg */
> if (!old)
> return 0;
>
> - new = kvmalloc_node(sizeof(*new) + size, GFP_KERNEL, nid);
> + if(!node_online(nid))
> + tmp = numa_mem_id();
> + new = kvmalloc_node(sizeof(*new) + size, GFP_KERNEL, tmp);
> if (!new)
Why should this be fixed here and not in, say, kvmalloc_node()?
