!2730 PCI/IOV: Add pci_sriov_numvfs_lock to support enable pci sriov concurrently

Merge Pull Request from: @ci-robot 
 
PR sync from: Jialin Zhang <zhangjialin11@huawei.com>
https://mailweb.openeuler.org/hyperkitty/list/kernel@openeuler.org/message/YFXBE5T22ZLVSJAYMG5WCSDQW46MTSSX/ 
 
https://gitee.com/openeuler/kernel/issues/I8BLQX 
 
Link:https://gitee.com/openeuler/kernel/pulls/2730

 

Reviewed-by: Liu YongQiang <liuyongqiang13@huawei.com>
Reviewed-by: Xiongfeng Wang <wangxiongfeng2@huawei.com>
Signed-off-by: Zhang Changzhong <zhangchangzhong@huawei.com>