diff options
| author | Glauber Costa <[email protected]> | 2012-12-18 14:23:01 -0800 |
|---|---|---|
| committer | Linus Torvalds <[email protected]> | 2012-12-18 15:02:14 -0800 |
| commit | 749c54151a6e5b229e4ae067dbc651e54b161fbc (patch) | |
| tree | 8d2d858e76e44d1bbf64439c189a57c18c8e60ae /include/linux | |
| parent | 22933152934f30de6f05b600c03f8a08f853a8d2 (diff) | |
memcg: aggregate memcg cache values in slabinfo
When we create caches in memcgs, we need to display their usage
information somewhere. We'll adopt a scheme similar to /proc/meminfo,
with aggregate totals shown in the global file, and per-group information
stored in the group itself.
For the time being, only reads are allowed in the per-group cache.
Signed-off-by: Glauber Costa <[email protected]>
Cc: Christoph Lameter <[email protected]>
Cc: David Rientjes <[email protected]>
Cc: Frederic Weisbecker <[email protected]>
Cc: Greg Thelen <[email protected]>
Cc: Johannes Weiner <[email protected]>
Cc: JoonSoo Kim <[email protected]>
Cc: KAMEZAWA Hiroyuki <[email protected]>
Cc: Mel Gorman <[email protected]>
Cc: Michal Hocko <[email protected]>
Cc: Pekka Enberg <[email protected]>
Cc: Rik van Riel <[email protected]>
Cc: Suleiman Souhlal <[email protected]>
Cc: Tejun Heo <[email protected]>
Signed-off-by: Andrew Morton <[email protected]>
Signed-off-by: Linus Torvalds <[email protected]>
Diffstat (limited to 'include/linux')
| -rw-r--r-- | include/linux/memcontrol.h | 8 | ||||
| -rw-r--r-- | include/linux/slab.h | 4 |
2 files changed, 12 insertions, 0 deletions
diff --git a/include/linux/memcontrol.h b/include/linux/memcontrol.h index e119f3ef793c..8dc7c746b44f 100644 --- a/include/linux/memcontrol.h +++ b/include/linux/memcontrol.h @@ -420,6 +420,11 @@ static inline void sock_release_memcg(struct sock *sk) #ifdef CONFIG_MEMCG_KMEM extern struct static_key memcg_kmem_enabled_key; + +extern int memcg_limited_groups_array_size; +#define for_each_memcg_cache_index(_idx) \ + for ((_idx) = 0; i < memcg_limited_groups_array_size; (_idx)++) + static inline bool memcg_kmem_enabled(void) { return static_key_false(&memcg_kmem_enabled_key); @@ -557,6 +562,9 @@ memcg_kmem_get_cache(struct kmem_cache *cachep, gfp_t gfp) return __memcg_kmem_get_cache(cachep, gfp); } #else +#define for_each_memcg_cache_index(_idx) \ + for (; NULL; ) + static inline bool memcg_kmem_enabled(void) { return false; diff --git a/include/linux/slab.h b/include/linux/slab.h index 869efb8d2377..b9278663f22a 100644 --- a/include/linux/slab.h +++ b/include/linux/slab.h @@ -220,6 +220,10 @@ struct memcg_cache_params { int memcg_update_all_caches(int num_memcgs); +struct seq_file; +int cache_show(struct kmem_cache *s, struct seq_file *m); +void print_slabinfo_header(struct seq_file *m); + /* * Common kmalloc functions provided by all allocators */ |