From ca344a894b41a133dab07dfbbdf652c053f6658c Mon Sep 17 00:00:00 2001
From: Al Viro <viro@zeniv.linux.org.uk>
Date: Wed, 9 Mar 2011 00:36:45 -0500
Subject: [PATCH] do_last: unify may_open() call and everyting after it

We have a bunch of diverging codepaths in do_last(); some of
them converge, but the case of having to create a new file
duplicates large part of common tail of the rest and exits
separately.  Massage them so that they could be merged.

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