hulk inclusion
category: feature
bugzilla: 48159
CVE: N/A

------------------------------

It's better to make the non-upstreamed feature into stand-alone file,
which make us easy to backport mainline patches.

No functional changes.

Cc: Sang Yan <sangyan@huawei.com>
Signed-off-by: NKefeng Wang <wangkefeng.wang@huawei.com>
Reviewed-by: NSang Yan <sangyan@huawei.com>
Reviewed-by: NLiu Shixin <liushixin2@huawei.com>
Signed-off-by: NZheng Zengkai <zhengzengkai@huawei.com>