From d6f64b89d7ff22ce05896ab4a93a653e8d0b123d Mon Sep 17 00:00:00 2001
From: Al Viro <viro@zeniv.linux.org.uk>
Date: Tue, 15 Feb 2011 22:26:01 -0500
Subject: [PATCH] close race in /proc/*/environ

Switch to mm_for_maps().  Maybe we ought to make it r--r--r--,
since we do checks on IO anyway...

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