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| author | Vladimir Davydov <vdavydov@virtuozzo.com> | 2016-08-02 14:03:04 -0700 |
|---|---|---|
| committer | Linus Torvalds <torvalds@linux-foundation.org> | 2016-08-02 17:31:41 -0400 |
| commit | b5afba2974f9ebbaaa11b5a633e55db9be3cc363 (patch) | |
| tree | 583fb2c74dc5bdadd14a075523ad5bce6107def4 /mm | |
| parent | 05eb6e7263185a6bb0de9501ccf2addc52429414 (diff) | |
| download | linux-b5afba2974f9ebbaaa11b5a633e55db9be3cc363.tar.gz linux-b5afba2974f9ebbaaa11b5a633e55db9be3cc363.tar.bz2 linux-b5afba2974f9ebbaaa11b5a633e55db9be3cc363.zip | |
mm: vmscan: fix memcg-aware shrinkers not called on global reclaim
We must call shrink_slab() for each memory cgroup on both global and
memcg reclaim in shrink_node_memcg(). Commit d71df22b55099 accidentally
changed that so that now shrink_slab() is only called with memcg != NULL
on memcg reclaim. As a result, memcg-aware shrinkers (including
dentry/inode) are never invoked on global reclaim. Fix that.
Fixes: b2e18757f2c9 ("mm, vmscan: begin reclaiming pages on a per-node basis")
Link: http://lkml.kernel.org/r/1470056590-7177-1-git-send-email-vdavydov@virtuozzo.com
Signed-off-by: Vladimir Davydov <vdavydov@virtuozzo.com>
Acked-by: Johannes Weiner <hannes@cmpxchg.org>
Acked-by: Michal Hocko <mhocko@suse.com>
Cc: Mel Gorman <mgorman@techsingularity.net>
Cc: Hillf Danton <hillf.zj@alibaba-inc.com>
Cc: Vlastimil Babka <vbabka@suse.cz>
Cc: Joonsoo Kim <iamjoonsoo.kim@lge.com>
Cc: Minchan Kim <minchan@kernel.org>
Cc: Rik van Riel <riel@surriel.com>
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/vmscan.c | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/mm/vmscan.c b/mm/vmscan.c index 650d26832569..374d95d04178 100644 --- a/mm/vmscan.c +++ b/mm/vmscan.c @@ -2561,7 +2561,7 @@ static bool shrink_node(pg_data_t *pgdat, struct scan_control *sc) shrink_node_memcg(pgdat, memcg, sc, &lru_pages); node_lru_pages += lru_pages; - if (!global_reclaim(sc)) + if (memcg) shrink_slab(sc->gfp_mask, pgdat->node_id, memcg, sc->nr_scanned - scanned, lru_pages); |