On Wed 22-02-17 16:58:11, Laurent Dufour wrote:
[...]
> static struct mem_cgroup_tree_per_node *
> soft_limit_tree_node(int nid)
> {
> @@ -465,6 +497,8 @@ static void mem_cgroup_update_tree(struct mem_cgroup *memcg, struct page *page)
> struct mem_cgroup_tree_per_node *mctz;
>
> mctz = soft_limit_tree_from_page(page);
> + if (!mctz)
> + return;
> /*
> * Necessary to update all ancestors when hierarchy is used.
> * because their event counter is not touched.
> @@ -502,7 +536,8 @@ static void mem_cgroup_remove_from_trees(struct mem_cgroup *memcg)
> for_each_node(nid) {
> mz = mem_cgroup_nodeinfo(memcg, nid);
> mctz = soft_limit_tree_node(nid);
> - mem_cgroup_remove_exceeded(mz, mctz);
> + if (mctz)
> + mem_cgroup_remove_exceeded(mz, mctz);
> }
> }
>
this belongs to the previous patch, right?
--
Michal Hocko
SUSE Labs
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