memcg-move-hugetlb-resource-count-to-parent-cgroup-on-memcg-removal-fix

memcg-move-hugetlb-resource-count-to-parent-cgroup-on-memcg-removal-fix

fix CONFIG_MEM_RES_CTLR_HUGETLB=n warnings

include/linux/memcontrol.h:504: warning: 'struct cgroup' declared inside parameter list
include/linux/memcontrol.h:504: warning: its scope is only this definition or declaration, which is probably not what you want
include/linux/memcontrol.h:509: warning: 'struct cgroup' declared inside parameter list

Cc: Andrea Arcangeli <aarcange@redhat.com>
Cc: Aneesh Kumar K.V <aneesh.kumar@linux.vnet.ibm.com>
Cc: Hillf Danton <dhillf@gmail.com>
Cc: Johannes Weiner <hannes@cmpxchg.org>
Cc: KAMEZAWA Hiroyuki <kamezawa.hiroyu@jp.fujitsu.com>
Cc: Michal Hocko <mhocko@suse.cz>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>