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memcg, slab: separate memcg vs root cache creation paths

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Memcg-awareness turned kmem_cache_create() into a dirty interweaving of
memcg-only and except-for-memcg calls.  To clean this up, let's move the
code responsible for memcg cache creation to a separate function.

Signed-off-by: Vladimir Davydov <vdavydov@parallels.com>
Cc: Michal Hocko <mhocko@suse.cz>
Cc: Johannes Weiner <hannes@cmpxchg.org>
Cc: David Rientjes <rientjes@google.com>
Cc: Pekka Enberg <penberg@kernel.org>
Cc: Glauber Costa <glommer@gmail.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
This commit is contained in:
Vladimir Davydov
2014-04-07 15:39:26 -07:00
committed by Linus Torvalds
parent 5722d094ad
commit 794b1248be
4 changed files with 113 additions and 97 deletions
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7
mm/memcontrol.c
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@@ -3395,13 +3395,8 @@ static void memcg_create_cache_work_func(struct work_struct *w)
struct create_work *cw = container_of(w, struct create_work, work);
struct mem_cgroup *memcg = cw->memcg;
struct kmem_cache *cachep = cw->cachep;
struct kmem_cache *new;
new = kmem_cache_create_memcg(memcg, cachep->name,
cachep->object_size, cachep->align,
cachep->flags & ~SLAB_PANIC, cachep->ctor, cachep);
if (new)
new->allocflags |= __GFP_KMEMCG;
kmem_cache_create_memcg(memcg, cachep);
css_put(&memcg->css);
kfree(cw);
}