ascend inclusion
category: bugfix
bugzilla: https://gitee.com/src-openeuler/kernel/issues/I67NC1
CVE: NA

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Charge Buddy hugepage to memcg when kmemcg is disabled. If kmemcg
is enabled, we can alse use kmemcg to charge buddy hugepages.
Signed-off-by: NZhou Guanghui <zhouguanghui1@huawei.com>
Reviewed-by: NKefeng Wang <wangkefeng.wang@huawei.com>
Signed-off-by: NYongqiang Liu <liuyongqiang13@huawei.com>