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| author | Vladimir Davydov <vdavydov@parallels.com> | 2015-02-12 14:59:32 -0800 |
|---|---|---|
| committer | Linus Torvalds <torvalds@linux-foundation.org> | 2015-02-12 18:54:10 -0800 |
| commit | 2a4db7eb9391a544ff58f4fa11d35246e87c87af (patch) | |
| tree | 3bbd57297a8303ffa227d6ea5600d2593a0302f4 /include/linux/slab.h | |
| parent | f1008365bbe4931d6a94dcfc11cf4cdada359664 (diff) | |
| download | linux-2a4db7eb9391a544ff58f4fa11d35246e87c87af.tar.gz linux-2a4db7eb9391a544ff58f4fa11d35246e87c87af.tar.bz2 linux-2a4db7eb9391a544ff58f4fa11d35246e87c87af.zip | |
memcg: free memcg_caches slot on css offline
We need to look up a kmem_cache in ->memcg_params.memcg_caches arrays only
on allocations, so there is no need to have the array entries set until
css free - we can clear them on css offline. This will allow us to reuse
array entries more efficiently and avoid costly array relocations.
Signed-off-by: Vladimir Davydov <vdavydov@parallels.com>
Cc: Johannes Weiner <hannes@cmpxchg.org>
Cc: Michal Hocko <mhocko@suse.cz>
Cc: Tejun Heo <tj@kernel.org>
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: Dave Chinner <david@fromorbit.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Diffstat (limited to 'include/linux/slab.h')
| -rw-r--r-- | include/linux/slab.h | 10 |
1 files changed, 5 insertions, 5 deletions
diff --git a/include/linux/slab.h b/include/linux/slab.h index 26d99f41b410..ed2ffaab59ea 100644 --- a/include/linux/slab.h +++ b/include/linux/slab.h @@ -115,13 +115,12 @@ int slab_is_available(void); struct kmem_cache *kmem_cache_create(const char *, size_t, size_t, unsigned long, void (*)(void *)); -#ifdef CONFIG_MEMCG_KMEM -void memcg_create_kmem_cache(struct mem_cgroup *, struct kmem_cache *); -void memcg_destroy_kmem_caches(struct mem_cgroup *); -#endif void kmem_cache_destroy(struct kmem_cache *); int kmem_cache_shrink(struct kmem_cache *); -void kmem_cache_free(struct kmem_cache *, void *); + +void memcg_create_kmem_cache(struct mem_cgroup *, struct kmem_cache *); +void memcg_deactivate_kmem_caches(struct mem_cgroup *); +void memcg_destroy_kmem_caches(struct mem_cgroup *); /* * Please use this macro to create slab caches. Simply specify the @@ -288,6 +287,7 @@ static __always_inline int kmalloc_index(size_t size) void *__kmalloc(size_t size, gfp_t flags); void *kmem_cache_alloc(struct kmem_cache *, gfp_t flags); +void kmem_cache_free(struct kmem_cache *, void *); #ifdef CONFIG_NUMA void *__kmalloc_node(size_t size, gfp_t flags, int node); |