hulk inclusion
category: bugfix
bugzilla: https://gitee.com/openeuler/kernel/issues/I65K8D
CVE: NA

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request_wrapper is used to fix kabi broken for request, it's only for
internal use. This patch make sure out-of-tree drivers won't access
request_wrapper if request is not managed by block layer.
Signed-off-by: NYu Kuai <yukuai3@huawei.com>
Reviewed-by: NHou Tao <houtao1@huawei.com>
Signed-off-by: NZheng Zengkai <zhengzengkai@huawei.com>