Messages in this thread Patch in this message | | | From | Miaohe Lin <> | Subject | [PATCH 3/5] mm, memcg: save some atomic ops when flush is already true | Date | Thu, 29 Jul 2021 20:57:53 +0800 |
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Add 'else' to save some atomic ops in obj_stock_flush_required() when flush is already true. No functional change intended here.
Signed-off-by: Miaohe Lin <linmiaohe@huawei.com> --- mm/memcontrol.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/mm/memcontrol.c b/mm/memcontrol.c index a03e24e57cd9..5b4592d1e0f2 100644 --- a/mm/memcontrol.c +++ b/mm/memcontrol.c @@ -2231,7 +2231,7 @@ static void drain_all_stock(struct mem_cgroup *root_memcg) if (memcg && stock->nr_pages && mem_cgroup_is_descendant(memcg, root_memcg)) flush = true; - if (obj_stock_flush_required(stock, root_memcg)) + else if (obj_stock_flush_required(stock, root_memcg)) flush = true; rcu_read_unlock(); -- 2.23.0
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