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.
Signed-off-by: Johannes Weiner <[email protected]> --- mm/memcontrol.c | 9 ++++++--- 1 file changed, 6 insertions(+), 3 deletions(-) diff --git a/mm/memcontrol.c b/mm/memcontrol.c index a04177f25758..4d573f4e1759 100644 --- a/mm/memcontrol.c +++ b/mm/memcontrol.c @@ -739,10 +739,13 @@ 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; } -- 2.20.1
