The patch titled
Subject: memcg: do not expose uninitialized mem_cgroup_per_node to world
has been removed from the -mm tree. Its filename was
memcg-do-not-expose-uninitialized-mem_cgroup_per_node-to-world.patch
This patch was dropped because it was merged into mainline or a subsystem tree
The current -mm tree may be found at http://userweb.kernel.org/~akpm/mmotm/
------------------------------------------------------
From: Igor Mammedov <imammedo@xxxxxxxxxx>
Subject: memcg: do not expose uninitialized mem_cgroup_per_node to world
If somebody is touching data too early, it might be easier to diagnose a
problem when dereferencing NULL at mem->info.nodeinfo[node] than trying to
understand why mem_cgroup_per_zone is [un|partly]initialized.
Signed-off-by: Igor Mammedov <imammedo@xxxxxxxxxx>
Acked-by: Michal Hocko <mhocko@xxxxxxx>
Cc: KAMEZAWA Hiroyuki <kamezawa.hiroyu@xxxxxxxxxxxxxx>
Signed-off-by: Andrew Morton <akpm@xxxxxxxxxxxxxxxxxxxx>
---
mm/memcontrol.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff -puN mm/memcontrol.c~memcg-do-not-expose-uninitialized-mem_cgroup_per_node-to-world mm/memcontrol.c
--- a/mm/memcontrol.c~memcg-do-not-expose-uninitialized-mem_cgroup_per_node-to-world
+++ a/mm/memcontrol.c
@@ -4742,7 +4742,6 @@ static int alloc_mem_cgroup_per_zone_inf
if (!pn)
return 1;
- memcg->info.nodeinfo[node] = pn;
for (zone = 0; zone < MAX_NR_ZONES; zone++) {
mz = &pn->zoneinfo[zone];
for_each_lru(l)
@@ -4751,6 +4750,7 @@ static int alloc_mem_cgroup_per_zone_inf
mz->on_tree = false;
mz->mem = memcg;
}
+ memcg->info.nodeinfo[node] = pn;
return 0;
}
_
Patches currently in -mm which might be from imammedo@xxxxxxxxxx are
origin.patch
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