[PATCH 0/2] Minor VFS-related cleanups

[NeilBrown]

These are improvements that I think are generally useful which I
developed as part of my work to change directory locking.

Thanks,
NeilBrown

 [PATCH 1/2] VFS: change old_dir and new_dir in struct renamedata to
 [PATCH 2/2] fs/proc: take rcu_read_lock() in proc_sys_compare()