!3678 timer_list: avoid other cpu soft lockup when printing timer list

Merge Pull Request from: @ci-robot 
 
PR sync from: Yang Yingliang <yangyingliang@huawei.com>
https://mailweb.openeuler.org/hyperkitty/list/kernel@openeuler.org/message/OSFWR4AABBU6G3UJPXOL6YREFNWMVQPZ/ 
 
https://gitee.com/openeuler/kernel/issues/I8SDKX 
 
Link:https://gitee.com/openeuler/kernel/pulls/3678

 

Reviewed-by: Xie XiuQi <xiexiuqi@huawei.com>
Signed-off-by: Zheng Zengkai <zhengzengkai@huawei.com>