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authorRoman Gushchin <guro@fb.com>2017-07-06 15:40:25 -0700
committerLinus Torvalds <torvalds@linux-foundation.org>2017-07-06 16:24:35 -0700
commit2262185c5b287f2758afda79c149b7cf6bee165c (patch)
tree4451ec80c3515ed5e4b93e4b2e5bd78661e0a5a9 /mm/swap.c
parent94f4a1618b4c2b268f9e70bd1516932927782293 (diff)
downloadop-kernel-dev-2262185c5b287f2758afda79c149b7cf6bee165c.zip
op-kernel-dev-2262185c5b287f2758afda79c149b7cf6bee165c.tar.gz
mm: per-cgroup memory reclaim stats
Track the following reclaim counters for every memory cgroup: PGREFILL, PGSCAN, PGSTEAL, PGACTIVATE, PGDEACTIVATE, PGLAZYFREE and PGLAZYFREED. These values are exposed using the memory.stats interface of cgroup v2. The meaning of each value is the same as for global counters, available using /proc/vmstat. Also, for consistency, rename mem_cgroup_count_vm_event() to count_memcg_event_mm(). Link: http://lkml.kernel.org/r/1494530183-30808-1-git-send-email-guro@fb.com Signed-off-by: Roman Gushchin <guro@fb.com> Suggested-by: Johannes Weiner <hannes@cmpxchg.org> Acked-by: Michal Hocko <mhocko@suse.com> Acked-by: Vladimir Davydov <vdavydov.dev@gmail.com> Acked-by: Johannes Weiner <hannes@cmpxchg.org> Cc: Tejun Heo <tj@kernel.org> Cc: Li Zefan <lizefan@huawei.com> Cc: Balbir Singh <bsingharora@gmail.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Diffstat (limited to 'mm/swap.c')
-rw-r--r--mm/swap.c1
1 files changed, 1 insertions, 0 deletions
diff --git a/mm/swap.c b/mm/swap.c
index 98d08b4..4f44dbd 100644
--- a/mm/swap.c
+++ b/mm/swap.c
@@ -591,6 +591,7 @@ static void lru_lazyfree_fn(struct page *page, struct lruvec *lruvec,
add_page_to_lru_list(page, lruvec, LRU_INACTIVE_FILE);
__count_vm_events(PGLAZYFREE, hpage_nr_pages(page));
+ count_memcg_page_event(page, PGLAZYFREE);
update_page_reclaim_stat(lruvec, 1, 0);
}
}
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