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| author | Tejun Heo <tj@kernel.org> | 2017-02-22 15:41:17 -0800 |
|---|---|---|
| committer | Linus Torvalds <torvalds@linux-foundation.org> | 2017-02-22 16:41:27 -0800 |
| commit | 9eeadc8b6e0e31f9aea1f8886ef472f62c2b7f55 (patch) | |
| tree | c35c43f53d70a3b6bf50f11c13fc0111069ee141 /mm/slab.h | |
| parent | 657dc2f9722092e951de95a8109428994541440b (diff) | |
| download | lwn-9eeadc8b6e0e31f9aea1f8886ef472f62c2b7f55.tar.gz lwn-9eeadc8b6e0e31f9aea1f8886ef472f62c2b7f55.zip | |
slab: reorganize memcg_cache_params
We're going to change how memcg caches are iterated. In preparation,
clean up and reorganize memcg_cache_params.
* The shared ->list is replaced by ->children in root and
->children_node in children.
* ->is_root_cache is removed. Instead ->root_cache is moved out of
the child union and now used by both root and children. NULL
indicates root cache. Non-NULL a memcg one.
This patch doesn't cause any observable behavior changes.
Link: http://lkml.kernel.org/r/20170117235411.9408-5-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 | 6 |
1 files changed, 3 insertions, 3 deletions
diff --git a/mm/slab.h b/mm/slab.h index d07563f37f33..3ed3336883ed 100644 --- a/mm/slab.h +++ b/mm/slab.h @@ -206,12 +206,12 @@ int __kmem_cache_alloc_bulk(struct kmem_cache *, gfp_t, size_t, void **); * slab_mutex. */ #define for_each_memcg_cache(iter, root) \ - list_for_each_entry(iter, &(root)->memcg_params.list, \ - memcg_params.list) + list_for_each_entry(iter, &(root)->memcg_params.children, \ + memcg_params.children_node) static inline bool is_root_cache(struct kmem_cache *s) { - return s->memcg_params.is_root_cache; + return !s->memcg_params.root_cache; } static inline bool slab_equal_or_root(struct kmem_cache *s, |