diff options
| author | Kaixu Xia <[email protected]> | 2020-06-01 21:49:36 -0700 |
|---|---|---|
| committer | Linus Torvalds <[email protected]> | 2020-06-02 10:59:09 -0700 |
| commit | 1c4448edb71ab9da35a938244602cdd75809de2b (patch) | |
| tree | 5b7e28ed32baed94bbfaf3e86b4d6ca39d148cd9 | |
| parent | a6f5576bb195c3b7508e3e1c98d2dcf6691f96e8 (diff) | |
mm: memcontrol: simplify value comparison between count and limit
When the variables count and limit have the same value(count == limit),
the result of min(margin, limit - count) statement should be 0 and the
variable margin is set to 0. So in this case, the min() statement is
not necessary and we can directly set the variable margin to 0.
Signed-off-by: Kaixu Xia <[email protected]>
Signed-off-by: Andrew Morton <[email protected]>
Acked-by: Michal Hocko <[email protected]>
Cc: Johannes Weiner <[email protected]>
Cc: Vladimir Davydov <[email protected]>
Link: http://lkml.kernel.org/r/[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 4bb922c02521..2243230befd2 100644 --- a/mm/memcontrol.c +++ b/mm/memcontrol.c @@ -1314,7 +1314,7 @@ static unsigned long mem_cgroup_margin(struct mem_cgroup *memcg) if (do_memsw_account()) { count = page_counter_read(&memcg->memsw); limit = READ_ONCE(memcg->memsw.max); - if (count <= limit) + if (count < limit) margin = min(margin, limit - count); else margin = 0; |