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

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

Pid recover method add new member to task_truct,
which generates kabi change problem.
We use KABI_RESERVE of task_truct, instead of
adding new member to task_truct.
Signed-off-by: NJingxian He <hejingxian@huawei.com>
Reviewed-by: NJing Xiangfeng <jingxiangfeng@huawei.com>
Reviewed-by: NXie XiuQi <xiexiuqi@huawei.com>
Reviewed-by: NHanjun Guo <guohanjun@huawei.com>
Signed-off-by: NYang Yingliang <yangyingliang@huawei.com>