!2461 perf/core: Fix reentry problem in perf_output_read_group()

Merge Pull Request from: @ci-robot 
 
PR sync from: Yang Jihong <yangjihong1@huawei.com>
https://mailweb.openeuler.org/hyperkitty/list/kernel@openeuler.org/message/PU5LFBCFUMDQHA4KFTSS2EZOHC3BTNIK/ 
 
https://gitee.com/src-openeuler/kernel/issues/I88WX3 
 
Link:https://gitee.com/openeuler/kernel/pulls/2461

 

Reviewed-by: Liu YongQiang <liuyongqiang13@huawei.com>
Reviewed-by: Xu Kuohai <xukuohai@huawei.com>
Signed-off-by: Zhang Changzhong <zhangchangzhong@huawei.com>