sq: rename may cause statistical issue

[zhangxyue]

Description of problem:
When I use simple-quota, I found when file deleted, but fd is not released.
Rename may cause statistical issue in this situation.

The exact command to reproduce the issue:

The full output of the command that failed:

Expected results:

Mandatory info:
- The output of the gluster volume info command:

- The output of the gluster volume status command:

- The output of the gluster volume heal command:

**- Provide logs present on following locations of client and server nodes -
/var/log/glusterfs/

**- Is there any crash ? Provide the backtrace and coredump

Additional info:

- The operating system / glusterfs version:

Note: Please hide any confidential data which you don't want to share in public like IP address, file name, hostname or any other configuration

[zhangxyue]

Refs #4316