namei: get rid of nameidata->base

we can do fdput() under rcu_read_lock() just fine; all we need to take
care of is fetching nd->inode value first.

Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
This commit is contained in:
Al Viro 2015-05-11 08:05:05 -04:00
commit 34a26b99b7