From 19660af736ba00e1620970601dd313efedbbcfd2 Mon Sep 17 00:00:00 2001
From: Al Viro <viro@zeniv.linux.org.uk>
Date: Fri, 25 Mar 2011 10:32:48 -0400
Subject: [PATCH] consolidate nameidata_..._drop_rcu()

Merge these into a single function (unlazy_walk(nd, dentry)),
kill ..._maybe variants

Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
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