From 0a5eb7c8189922e86a840972cd0b57e41de6f031 Mon Sep 17 00:00:00 2001
From: "Eric W. Biederman" <ebiederman@twitter.com>
Date: Sun, 22 Sep 2013 19:37:01 -0700
Subject: [PATCH] vfs: Keep a list of mounts on a mount point

To spot any possible problems call BUG if a mountpoint
is put when it's list of mounts is not empty.

AV: use hlist instead of list_head

Reviewed-by: Miklos Szeredi <miklos@szeredi.hu>
Signed-off-by: Eric W. Biederman <ebiederman@twitter.com>
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
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Reading git-format-patch failed