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| author |   Glauber Costa <glommer@parallels.com> | 2012-12-18 14:22:27 -0800 |
|---|---|---|
| committer |   Linus Torvalds <torvalds@linux-foundation.org> | 2012-12-18 15:02:13 -0800 |
| commit | ba6c496ed834a37a26fc6fc87fc9aecb0fa0014d (patch) | |
| tree | cd229b78ca04817354865c9fdf57b564a6bf7852 /mm | |
| parent | memcg: add documentation about the kmem controller (diff) | |
| download | linux-dev-ba6c496ed834a37a26fc6fc87fc9aecb0fa0014d.tar.xz linux-dev-ba6c496ed834a37a26fc6fc87fc9aecb0fa0014d.zip | |
slab/slub: struct memcg_params
For the kmem slab controller, we need to record some extra information in
the kmem_cache structure.
Signed-off-by: Glauber Costa <glommer@parallels.com>
Signed-off-by: Suleiman Souhlal <suleiman@google.com>
Cc: Christoph Lameter <cl@linux.com>
Cc: David Rientjes <rientjes@google.com>
Cc: Frederic Weisbecker <fweisbec@redhat.com>
Cc: Greg Thelen <gthelen@google.com>
Cc: Johannes Weiner <hannes@cmpxchg.org>
Cc: JoonSoo Kim <js1304@gmail.com>
Cc: KAMEZAWA Hiroyuki <kamezawa.hiroyu@jp.fujitsu.com>
Cc: Mel Gorman <mel@csn.ul.ie>
Cc: Michal Hocko <mhocko@suse.cz>
Cc: Pekka Enberg <penberg@cs.helsinki.fi>
Cc: Rik van Riel <riel@redhat.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 'mm')
| -rw-r--r-- | mm/slab.h | 13 |
1 files changed, 13 insertions, 0 deletions
diff --git a/mm/slab.h b/mm/slab.h index 1cb9c9ee0e6f..49e7a8b1d27e 100644 --- a/mm/slab.h +++ b/mm/slab.h @@ -100,4 +100,17 @@ void get_slabinfo(struct kmem_cache *s, struct slabinfo *sinfo); void slabinfo_show_stats(struct seq_file *m, struct kmem_cache *s); ssize_t slabinfo_write(struct file *file, const char __user *buffer, size_t count, loff_t *ppos); + +#ifdef CONFIG_MEMCG_KMEM +static inline bool is_root_cache(struct kmem_cache *s) +{ + return !s->memcg_params || s->memcg_params->is_root_cache; +} +#else +static inline bool is_root_cache(struct kmem_cache *s) +{ + return true; +} + +#endif #endif |