diff options
Diffstat (limited to 'mm/memcontrol.c')
| -rw-r--r-- | mm/memcontrol.c | 14 |
1 files changed, 9 insertions, 5 deletions
diff --git a/mm/memcontrol.c b/mm/memcontrol.c index 87a448dd9c10..c016e001c5b2 100644 --- a/mm/memcontrol.c +++ b/mm/memcontrol.c @@ -1773,11 +1773,13 @@ int mem_cgroup_select_victim_node(struct mem_cgroup *memcg) #endif /* - * A group is eligible for the soft limit reclaim if it is - * a) is over its soft limit + * A group is eligible for the soft limit reclaim under the given root + * hierarchy if + * a) it is over its soft limit * b) any parent up the hierarchy is over its soft limit */ -bool mem_cgroup_soft_reclaim_eligible(struct mem_cgroup *memcg) +bool mem_cgroup_soft_reclaim_eligible(struct mem_cgroup *memcg, + struct mem_cgroup *root) { struct mem_cgroup *parent = memcg; @@ -1785,12 +1787,14 @@ bool mem_cgroup_soft_reclaim_eligible(struct mem_cgroup *memcg) return true; /* - * If any parent up the hierarchy is over its soft limit then we - * have to obey and reclaim from this group as well. + * If any parent up to the root in the hierarchy is over its soft limit + * then we have to obey and reclaim from this group as well. */ while((parent = parent_mem_cgroup(parent))) { if (res_counter_soft_limit_excess(&parent->res)) return true; + if (parent == root) + break; } return false; |