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Commit 9eeadc8b authored by Tejun Heo's avatar Tejun Heo Committed by Linus Torvalds
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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: default avatarTejun Heo <tj@kernel.org>
Acked-by: default avatarVladimir 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: default avatarAndrew Morton <akpm@linux-foundation.org>
Signed-off-by: default avatarLinus Torvalds <torvalds@linux-foundation.org>
parent 657dc2f9
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