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author | Stefan Agner <stefan.agner@toradex.com> | 2016-06-29 17:36:47 -0700 |
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committer | Stefan Agner <stefan.agner@toradex.com> | 2016-06-29 17:36:47 -0700 |
commit | efe965a5dad66bd14219cdc9474ea75eda783456 (patch) | |
tree | c88aa38447747bee19da6e4097334cd4c98b426f /mm/memcontrol.c | |
parent | 475764ae387355462c874892b03110298038adef (diff) | |
parent | 9ca1d50fa959cda1f04f43275f7930a70f1a631e (diff) |
Merge tag 'v4.4.14' into toradex_vf_4.4-nextColibri_VF_LinuxImageV2.6Beta2_20160701
This is the 4.4.14 stable release
Diffstat (limited to 'mm/memcontrol.c')
-rw-r--r-- | mm/memcontrol.c | 3 |
1 files changed, 3 insertions, 0 deletions
diff --git a/mm/memcontrol.c b/mm/memcontrol.c index 6ba4dd988e2e..67648e6b2ac8 100644 --- a/mm/memcontrol.c +++ b/mm/memcontrol.c @@ -3661,6 +3661,7 @@ static void memcg_deactivate_kmem(struct mem_cgroup *memcg) * ordering is imposed by list_lru_node->lock taken by * memcg_drain_all_list_lrus(). */ + rcu_read_lock(); /* can be called from css_free w/o cgroup_mutex */ css_for_each_descendant_pre(css, &memcg->css) { child = mem_cgroup_from_css(css); BUG_ON(child->kmemcg_id != kmemcg_id); @@ -3668,6 +3669,8 @@ static void memcg_deactivate_kmem(struct mem_cgroup *memcg) if (!memcg->use_hierarchy) break; } + rcu_read_unlock(); + memcg_drain_all_list_lrus(kmemcg_id, parent->kmemcg_id); memcg_free_cache_id(kmemcg_id); |