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| author | Tejun Heo <tj@kernel.org> | 2017-02-22 15:41:27 -0800 |
|---|---|---|
| committer | Linus Torvalds <torvalds@linux-foundation.org> | 2017-02-22 16:41:27 -0800 |
| commit | c9fc586403e7c85eee06b2d5dea14ce71c00fcd8 (patch) | |
| tree | 4edb0cd2ebf8b0439239fb1ebe511e3def80e39a /mm/slab.h | |
| parent | 510ded33e075c2bd662b1efab0110f4240325fc9 (diff) | |
| download | linux-c9fc586403e7c85eee06b2d5dea14ce71c00fcd8.tar.gz linux-c9fc586403e7c85eee06b2d5dea14ce71c00fcd8.tar.bz2 linux-c9fc586403e7c85eee06b2d5dea14ce71c00fcd8.zip | |
slab: introduce __kmemcg_cache_deactivate()
__kmem_cache_shrink() is called with %true @deactivate only for memcg
caches. Remove @deactivate from __kmem_cache_shrink() and introduce
__kmemcg_cache_deactivate() instead. Each memcg-supporting allocator
should implement it and it should deactivate and drain the cache.
This is to allow memcg cache deactivation behavior to further deviate
from simple shrinking without messing up __kmem_cache_shrink().
This is pure reorganization and doesn't introduce any observable
behavior changes.
v2: Dropped unnecessary ifdef in mm/slab.h as suggested by Vladimir.
Link: http://lkml.kernel.org/r/20170117235411.9408-8-tj@kernel.org
Signed-off-by: Tejun Heo <tj@kernel.org>
Acked-by: Vladimir Davydov <vdavydov.dev@gmail.com>
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>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Diffstat (limited to 'mm/slab.h')
| -rw-r--r-- | mm/slab.h | 3 |
1 files changed, 2 insertions, 1 deletions
diff --git a/mm/slab.h b/mm/slab.h index 9631bb27c772..7bff1ee513c2 100644 --- a/mm/slab.h +++ b/mm/slab.h @@ -167,7 +167,8 @@ static inline unsigned long kmem_cache_flags(unsigned long object_size, int __kmem_cache_shutdown(struct kmem_cache *); void __kmem_cache_release(struct kmem_cache *); -int __kmem_cache_shrink(struct kmem_cache *, bool); +int __kmem_cache_shrink(struct kmem_cache *); +void __kmemcg_cache_deactivate(struct kmem_cache *s); void slab_kmem_cache_release(struct kmem_cache *); struct seq_file; |