From 378876b0e3782daacb7848db03679d6f76c82265 Mon Sep 17 00:00:00 2001 From: Miaohe Lin Date: Mon, 14 Dec 2020 19:06:28 -0800 Subject: mm: memcontrol: eliminate redundant check in __mem_cgroup_insert_exceeded() 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. Link: https://lkml.kernel.org/r/20201012131607.10656-1-linmiaohe@huawei.com Signed-off-by: Miaohe Lin Acked-by: Michal Hocko Acked-by: Johannes Weiner Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds --- mm/memcontrol.c | 9 ++------- 1 file changed, 2 insertions(+), 7 deletions(-) (limited to 'mm/memcontrol.c') diff --git a/mm/memcontrol.c b/mm/memcontrol.c index 83f2e5f84bdc..2e13c0a419fc 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) -- cgit v1.2.3