From 88b368f27a094277143d8ecd5a056116f6a41520 Mon Sep 17 00:00:00 2001
From: Al Viro <viro@zeniv.linux.org.uk>
Date: Mon, 18 Aug 2014 15:09:26 -0400
Subject: [PATCH] get rid of propagate_umount() mistakenly treating slaves as
 busy.

The check in __propagate_umount() ("has somebody explicitly mounted
something on that slave?") is done *before* taking the already doomed
victims out of the child lists.

Cc: stable@vger.kernel.org
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
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Reading git-format-patch failed