!9870 cifs: Fix deadlock in cifs_writepages during reconnect

Merge Pull Request from: @ci-robot 
 
PR sync from: Wang Zhaolong <wangzhaolong1@huawei.com>
https://mailweb.openeuler.org/hyperkitty/list/kernel@openeuler.org/message/QJ5TXKJQ7YDZD5C3HUVYTOHYQSB3VRMG/ 
 
https://gitee.com/openeuler/kernel/issues/IAASLU 
 
Link:https://gitee.com/openeuler/kernel/pulls/9870

 

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