diff options
| author | Johannes Weiner <hannes@cmpxchg.org> | 2020-12-14 19:06:20 -0800 |
|---|---|---|
| committer | Linus Torvalds <torvalds@linux-foundation.org> | 2020-12-15 12:13:39 -0800 |
| commit | b8eddff8886b173b0a0f21a3bb1a594cc6d974d1 (patch) | |
| tree | d51af0968a8043adccb64e3811d13599635e7925 /mm/khugepaged.c | |
| parent | f38d58b7343882f5412a5e5719d9b302f305f2d1 (diff) | |
| download | linux-b8eddff8886b173b0a0f21a3bb1a594cc6d974d1.tar.bz2 | |
mm: memcontrol: add file_thp, shmem_thp to memory.stat
As huge page usage in the page cache and for shmem files proliferates in
our production environment, the performance monitoring team has asked for
per-cgroup stats on those pages.
We already track and export anon_thp per cgroup. We already track file
THP and shmem THP per node, so making them per-cgroup is only a matter of
switching from node to lruvec counters. All callsites are in places where
the pages are charged and locked, so page->memcg is stable.
[hannes@cmpxchg.org: add documentation]
Link: https://lkml.kernel.org/r/20201026174029.GC548555@cmpxchg.org
Link: https://lkml.kernel.org/r/20201022151844.489337-1-hannes@cmpxchg.org
Signed-off-by: Johannes Weiner <hannes@cmpxchg.org>
Reviewed-by: Rik van Riel <riel@surriel.com>
Reviewed-by: Shakeel Butt <shakeelb@google.com>
Acked-by: David Rientjes <rientjes@google.com>
Acked-by: Michal Hocko <mhocko@suse.com>
Acked-by: Song Liu <songliubraving@fb.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Diffstat (limited to 'mm/khugepaged.c')
| -rw-r--r-- | mm/khugepaged.c | 4 |
1 files changed, 2 insertions, 2 deletions
diff --git a/mm/khugepaged.c b/mm/khugepaged.c index 4e3dff13eb70..757292532767 100644 --- a/mm/khugepaged.c +++ b/mm/khugepaged.c @@ -1845,9 +1845,9 @@ out_unlock: } if (is_shmem) - __inc_node_page_state(new_page, NR_SHMEM_THPS); + __inc_lruvec_page_state(new_page, NR_SHMEM_THPS); else { - __inc_node_page_state(new_page, NR_FILE_THPS); + __inc_lruvec_page_state(new_page, NR_FILE_THPS); filemap_nr_thps_inc(mapping); } |