The original patch:
--- a/mm/memcontrol.c
+++ b/mm/memcontrol.c
@@ -4707,7 +4707,6 @@ static int alloc_mem_cgroup_per_zone_info(struct mem_cgroup *mem, int node)
if (!pn)
return 1;
- mem->info.nodeinfo[node] = pn;
for (zone = 0; zone < MAX_NR_ZONES; zone++) {
mz = &pn->zoneinfo[zone];
for_each_lru(l)
@@ -4716,6 +4715,7 @@ static int alloc_mem_cgroup_per_zone_info(struct mem_cgroup *mem, int node)
mz->on_tree = false;
mz->mem = mem;
}
+ mem->info.nodeinfo[node] = pn;
return 0;
}
looks like a really good idea. But it needs a new changelog and I'd be
a bit reluctant to merge it as it appears that the aptch removes our
only known way of reproducing a bug.
So for now I think I'll queue the patch up unchangelogged so the issue
doesn't get forgotten about.
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