From: Eric W. Biederman <ebiederman@twitter.com>
Date: Mon, 23 Sep 2013 02:37:01 +0000 (-0700)
Subject: vfs: Keep a list of mounts on a mount point
X-Git-Tag: omap-for-v3.19/prcm-cleanup~102^2~52
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=0a5eb7c8189922e86a840972cd0b57e41de6f031;p=pandora-kernel.git

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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