Bug 1571217

Description of problem:
=======================
When ran rm -rf from a single client, rm failed to clean the data and throwed EIO error.

[root@client-1 ec_new]# rm -rvf *
rm: cannot remove ‘b/b/b/b/b/b’: Input/output error

Client logs:

[2018-04-24 09:57:12.097558] W [MSGID: 122053] [ec-common.c:307:ec_check_status] 0-ec_new-disperse-1: Operation failed on 1 of 6 subvolumes.(up=111111, mask=111110, remaining=000000, good=111110, bad=000001)
[2018-04-24 09:57:12.948095] W [MSGID: 122040] [ec-common.c:1144:ec_prepare_update_cbk] 0-ec_new-disperse-7: Failed to get size and version [Input/output error]
[2018-04-24 09:57:13.185568] W [fuse-bridge.c:1460:fuse_unlink_cbk] 0-glusterfs-fuse: 1124: RMDIR() /b/b/b/b/b/b => -1 (Input/output error)
[2018-04-24 09:57:12.274744] W [MSGID: 122053] [ec-common.c:307:ec_check_status] 0-ec_new-disperse-1: Operation failed on 1 of 6 subvolumes.(up=111111, mask=111110, remaining=000000, good=111110, bad=000001)
[2018-04-24 09:57:13.181768] W [MSGID: 122040] [ec-common.c:1144:ec_prepare_update_cbk] 0-ec_new-disperse-7: Failed to get size and version [Input/output error]

Version-Release number of selected component (if applicable):
3.12.2-8.el7rhgs.x86_64

How reproducible:
1/1

Steps to Reproduce:
===================
Not sure on the repro steps but below steps lead to the failure,
1) Create a Distributed-Disperse volume and start it.
2) Mount it on multiple clients.
3) From client-1; while true; do mkdir a;done
   From client-2; while true;do mv a b; mv b a;done
4) Step-3 was run for 10 mins and stopped both scripts.
5) Done offline update from 3.12.2-7.el7rhgs.x86_64 to 3.12.2-8.el7rhgs.x86_64 (both clients and servers are updated)
6) Create a link to the directory.
7)  Now, run rm -rf * from one client.

Actual results:
===============
rm -rf * failed with EIO error.

Expected results:
=================
rm -rf * should remove the data without any errors/issues.