client: do not retake lock in sync_write_commit
client: do not retake lock in sync_write_commit

We already hold the lock from a few frames up the stack (ms_dispatch).

Reported-by: Simon Tian <a5ae64c0eef8ae91696360d2a5ea29769ee16789@gmail.com>
Signed-off-by: Sage Weil <6dd34506bbd5e58221bbb3e4732d97c91f02277b@newdream.net>

ajnelson/ceph,ajnelson/ceph,ajnelson/ceph,ajnelson/ceph,ajnelson/ceph,ajnelson/ceph