Revert "mds: CInode::mark_dirty should then dirty the projected parent inode, if present"
Revert "mds: CInode::mark_dirty should then dirty the projected parent inode, if present"

We _shouldn't_ use the projected dentry, only the current dentry, since updates
to this inode may be pipelined with other updates and/or a parent change.  If
we are really doing a rename, fix the parent, _then_ dirty the inode.

This reverts commit 89c635d3ee6038daee352e238d00b94094927571.

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