Commit 22796c84 authored by Johannes Weiner's avatar Johannes Weiner Committed by Linus Torvalds

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.orgSigned-off-by: default avatarJohannes Weiner <hannes@cmpxchg.org>
Reviewed-by: default avatarRoman Gushchin <guro@fb.com>
Cc: Michal Hocko <mhocko@kernel.org>
Cc: Tejun Heo <tj@kernel.org>
Signed-off-by: default avatarAndrew Morton <akpm@linux-foundation.org>
Signed-off-by: default avatarLinus Torvalds <torvalds@linux-foundation.org>
parent 1a61ab80
...@@ -746,10 +746,13 @@ static unsigned long mem_cgroup_nr_lru_pages(struct mem_cgroup *memcg, ...@@ -746,10 +746,13 @@ static unsigned long mem_cgroup_nr_lru_pages(struct mem_cgroup *memcg,
unsigned int lru_mask) unsigned int lru_mask)
{ {
unsigned long nr = 0; unsigned long nr = 0;
int nid; enum lru_list lru;
for_each_node_state(nid, N_MEMORY) for_each_lru(lru) {
nr += mem_cgroup_node_nr_lru_pages(memcg, nid, lru_mask); if (!(BIT(lru) & lru_mask))
continue;
nr += memcg_page_state(memcg, NR_LRU_BASE + lru);
}
return nr; return nr;
} }
......
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