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authorVladimir Davydov <vdavydov@parallels.com>2015-02-12 14:59:14 -0800
committerLinus Torvalds <torvalds@linux-foundation.org>2015-02-12 18:54:09 -0800
commit2acb60a0461fec8a4516686c913a295ce872697f (patch)
treeaa4e36d78f28e5164041e861064db101405659e4 /fs/super.c
parent60d3fd32a7a9da4c8c93a9f89cfda22a0b4c65ce (diff)
downloadop-kernel-dev-2acb60a0461fec8a4516686c913a295ce872697f.zip
op-kernel-dev-2acb60a0461fec8a4516686c913a295ce872697f.tar.gz
fs: make shrinker memcg aware
Now, to make any list_lru-based shrinker memcg aware we should only initialize its list_lru as memcg aware. Let's do it for the general FS shrinker (super_block::s_shrink). There are other FS-specific shrinkers that use list_lru for storing objects, such as XFS and GFS2 dquot cache shrinkers, but since they reclaim objects that are shared among different cgroups, there is no point making them memcg aware. It's a big question whether we should account them to memcg at all. Signed-off-by: Vladimir Davydov <vdavydov@parallels.com> Cc: Dave Chinner <david@fromorbit.com> Cc: Johannes Weiner <hannes@cmpxchg.org> Cc: Michal Hocko <mhocko@suse.cz> Cc: Greg Thelen <gthelen@google.com> Cc: Glauber Costa <glommer@gmail.com> Cc: Alexander Viro <viro@zeniv.linux.org.uk> Cc: Christoph Lameter <cl@linux.com> Cc: Pekka Enberg <penberg@kernel.org> Cc: David Rientjes <rientjes@google.com> Cc: Joonsoo Kim <iamjoonsoo.kim@lge.com> Cc: Tejun Heo <tj@kernel.org> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Diffstat (limited to 'fs/super.c')
-rw-r--r--fs/super.c6
1 files changed, 3 insertions, 3 deletions
diff --git a/fs/super.c b/fs/super.c
index b027849..482b407 100644
--- a/fs/super.c
+++ b/fs/super.c
@@ -189,9 +189,9 @@ static struct super_block *alloc_super(struct file_system_type *type, int flags)
INIT_HLIST_BL_HEAD(&s->s_anon);
INIT_LIST_HEAD(&s->s_inodes);
- if (list_lru_init(&s->s_dentry_lru))
+ if (list_lru_init_memcg(&s->s_dentry_lru))
goto fail;
- if (list_lru_init(&s->s_inode_lru))
+ if (list_lru_init_memcg(&s->s_inode_lru))
goto fail;
init_rwsem(&s->s_umount);
@@ -227,7 +227,7 @@ static struct super_block *alloc_super(struct file_system_type *type, int flags)
s->s_shrink.scan_objects = super_cache_scan;
s->s_shrink.count_objects = super_cache_count;
s->s_shrink.batch = 1024;
- s->s_shrink.flags = SHRINKER_NUMA_AWARE;
+ s->s_shrink.flags = SHRINKER_NUMA_AWARE | SHRINKER_MEMCG_AWARE;
return s;
fail:
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