Messages in this thread Patch in this message | | | From | Wenwei Tao <> | Subject | [PATCH] mm/memcontrol.c: add memory allocation result check | Date | Mon, 30 May 2016 16:45:51 +0800 |
| |
From: Wenwei Tao <ww.tao0320@gmail.com>
The mem_cgroup_tree_per_node allocation might fail, check that before continue the memcg init. Since it is in the init phase, trigger the panic if that failure happens.
Signed-off-by: Wenwei Tao <ww.tao0320@gmail.com> --- mm/memcontrol.c | 1 + 1 file changed, 1 insertion(+)
diff --git a/mm/memcontrol.c b/mm/memcontrol.c index 925b431..6385c62 100644 --- a/mm/memcontrol.c +++ b/mm/memcontrol.c @@ -5712,6 +5712,7 @@ static int __init mem_cgroup_init(void) rtpn = kzalloc_node(sizeof(*rtpn), GFP_KERNEL, node_online(node) ? node : NUMA_NO_NODE); + BUG_ON(!rtpn); for (zone = 0; zone < MAX_NR_ZONES; zone++) { struct mem_cgroup_tree_per_zone *rtpz; -- 1.8.3.1
| |