The mz->usage_in_excess >= mz_node->usage_in_excess check is exactly the
else case of mz->usage_in_excess < mz_node->usage_in_excess. So we could
replace else if (mz->usage_in_excess >= mz_node->usage_in_excess) with else
equally. Also drop the comment which doesn't really explain much.
Acked-by: Michal Hocko <mhocko@xxxxxxxx>
Signed-off-by: Miaohe Lin <linmiaohe@xxxxxxxxxx>
---
mm/memcontrol.c | 9 ++-------
1 file changed, 2 insertions(+), 7 deletions(-)
diff --git a/mm/memcontrol.c b/mm/memcontrol.c
index 2636f8bad908..b080a9434b9e 100644
--- a/mm/memcontrol.c
+++ b/mm/memcontrol.c
@@ -623,14 +623,9 @@ static void __mem_cgroup_insert_exceeded(struct mem_cgroup_per_node *mz,
if (mz->usage_in_excess < mz_node->usage_in_excess) {
p = &(*p)->rb_left;
rightmost = false;
- }
-
- /*
- * We can't avoid mem cgroups that are over their soft
- * limit by the same amount
- */
- else if (mz->usage_in_excess >= mz_node->usage_in_excess)
+ } else {
p = &(*p)->rb_right;
+ }
}
if (rightmost)
--
2.19.1
