[PATCH 3.19.y-ckt 084/155] memcg: convert threshold to bytes
Kamal Mostafa
kamal at canonical.com
Thu Nov 12 23:17:18 UTC 2015
3.19.8-ckt10 -stable review patch. If anyone has any objections, please let me know.
------------------
From: Shaohua Li <shli at fb.com>
commit 424cdc14138088ada1b0e407a2195b2783c6e5ef upstream.
page_counter_memparse() returns pages for the threshold, while
mem_cgroup_usage() returns bytes for memory usage. Convert the
threshold to bytes.
Fixes: 3e32cb2e0a12b6915 ("memcg: rename cgroup_event to mem_cgroup_event").
Signed-off-by: Shaohua Li <shli at fb.com>
Cc: Johannes Weiner <hannes at cmpxchg.org>
Acked-by: Michal Hocko <mhocko at suse.com>
Signed-off-by: Andrew Morton <akpm at linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds at linux-foundation.org>
Signed-off-by: Kamal Mostafa <kamal at canonical.com>
---
mm/memcontrol.c | 1 +
1 file changed, 1 insertion(+)
diff --git a/mm/memcontrol.c b/mm/memcontrol.c
index 2f6893c..28253e5 100644
--- a/mm/memcontrol.c
+++ b/mm/memcontrol.c
@@ -3904,6 +3904,7 @@ static int __mem_cgroup_usage_register_event(struct mem_cgroup *memcg,
ret = page_counter_memparse(args, &threshold);
if (ret)
return ret;
+ threshold <<= PAGE_SHIFT;
mutex_lock(&memcg->thresholds_lock);
--
1.9.1
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