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| author | Johannes Weiner <hannes@cmpxchg.org> | 2019-05-13 17:18:03 -0700 |
|---|---|---|
| committer | Linus Torvalds <torvalds@linux-foundation.org> | 2019-05-14 09:47:46 -0700 |
| commit | 22796c844fcb85f3b289c0e698713b7fa4d9c178 (patch) | |
| tree | 805f127cd1c7117fc73abc77a274e307a3f5d4c4 /mm | |
| parent | 1a61ab8038e724a6d8aa59e7d4931a119483294d (diff) | |
| download | linux-22796c844fcb85f3b289c0e698713b7fa4d9c178.tar.bz2 | |
mm: memcontrol: replace node summing with memcg_page_state()
Instead of adding up the node counters, use memcg_page_state() to get the
memcg state directly. This is a bit cheaper and more stream-lined.
Link: http://lkml.kernel.org/r/20190228163020.24100-4-hannes@cmpxchg.org
Signed-off-by: Johannes Weiner <hannes@cmpxchg.org>
Reviewed-by: Roman Gushchin <guro@fb.com>
Cc: Michal Hocko <mhocko@kernel.org>
Cc: Tejun Heo <tj@kernel.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Diffstat (limited to 'mm')
| -rw-r--r-- | mm/memcontrol.c | 9 |
1 files changed, 6 insertions, 3 deletions
diff --git a/mm/memcontrol.c b/mm/memcontrol.c index f30381481c45..4000ea4ea0ec 100644 --- a/mm/memcontrol.c +++ b/mm/memcontrol.c @@ -746,10 +746,13 @@ static unsigned long mem_cgroup_nr_lru_pages(struct mem_cgroup *memcg, unsigned int lru_mask) { unsigned long nr = 0; - int nid; + enum lru_list lru; - for_each_node_state(nid, N_MEMORY) - nr += mem_cgroup_node_nr_lru_pages(memcg, nid, lru_mask); + for_each_lru(lru) { + if (!(BIT(lru) & lru_mask)) + continue; + nr += memcg_page_state(memcg, NR_LRU_BASE + lru); + } return nr; } |