Re: [PATCH -mm 2/8] memcg: keep all children of each root cache on a list

2014-07-07 Thread Vladimir Davydov
On Mon, Jul 07, 2014 at 10:24:35AM -0500, Christoph Lameter wrote: > On Mon, 7 Jul 2014, Vladimir Davydov wrote: > > > diff --git a/mm/slab_common.c b/mm/slab_common.c > > index d31c4bacc6a2..95a8f772b0d1 100644 > > --- a/mm/slab_common.c > > +++ b/mm/slab_common.c > > @@ -294,8 +294,12 @@ struct

Re: [PATCH -mm 2/8] memcg: keep all children of each root cache on a list

2014-07-07 Thread Christoph Lameter
On Mon, 7 Jul 2014, Vladimir Davydov wrote: > diff --git a/mm/slab_common.c b/mm/slab_common.c > index d31c4bacc6a2..95a8f772b0d1 100644 > --- a/mm/slab_common.c > +++ b/mm/slab_common.c > @@ -294,8 +294,12 @@ struct kmem_cache *memcg_create_kmem_cache(struct > mem_cgroup *memcg, > if (IS_E

[PATCH -mm 2/8] memcg: keep all children of each root cache on a list

2014-07-07 Thread Vladimir Davydov
Sometimes we need to iterate over all child caches of a particular root cache, e.g. when we are destroying it. Currently each root cache keeps pointers to its children in its memcg_cache_params::memcg_caches_array so that we can enumerate all active kmemcg ids dereferencing appropriate array slots