diff options
| author | Miaohe Lin <[email protected]> | 2021-09-02 14:55:59 -0700 |
|---|---|---|
| committer | Linus Torvalds <[email protected]> | 2021-09-03 09:58:13 -0700 |
| commit | 27fb0956ed08780e480a14c5cca2fd4818e99fa7 (patch) | |
| tree | b13dee90f87f8edb815092ca76b6857d3ecff481 | |
| parent | bec49c067c679e9b7ca7c1aac50b56618c12d879 (diff) | |
mm, memcg: save some atomic ops when flush is already true
Add 'else' to save some atomic ops in obj_stock_flush_required() when
flush is already true. No functional change intended here.
Link: https://lkml.kernel.org/r/[email protected]
Signed-off-by: Miaohe Lin <[email protected]>
Reviewed-by: Shakeel Butt <[email protected]>
Reviewed-by: Muchun Song <[email protected]>
Acked-by: Roman Gushchin <[email protected]>
Acked-by: Michal Hocko <[email protected]>
Cc: Vladimir Davydov <[email protected]>
Cc: Muchun Song <[email protected]>
Cc: Matthew Wilcox (Oracle) <[email protected]>
Cc: Alex Shi <[email protected]>
Cc: Wei Yang <[email protected]>
Signed-off-by: Andrew Morton <[email protected]>
Signed-off-by: Linus Torvalds <[email protected]>
| -rw-r--r-- | mm/memcontrol.c | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/mm/memcontrol.c b/mm/memcontrol.c index 80840e026c2f..894a24d5ec55 100644 --- a/mm/memcontrol.c +++ b/mm/memcontrol.c @@ -2246,7 +2246,7 @@ 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(); |