From mboxrd@z Thu Jan  1 00:00:00 1970
From: Al Viro <viro@ZenIV.linux.org.uk>
Subject: Re: Question about inotify and bind mount.
Date: Thu, 10 Jun 2010 22:18:24 +0100
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Cc: Brad Boyer <flar@allandria.com>, linux-fsdevel@vger.kernel.org
To: Stef Bon <stefbon@gmail.com>
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On Sun, Jun 06, 2010 at 12:55:35PM +0200, Stef Bon wrote:

> So to get bask to the mount --bind issue. Because the inodes are just
> mirrored a inotify request is just handled the same?

They are not mirrored.  They (and dentries and superblock) are literally
the same.  mount --bind results in a new vfsmount that does (as any vfsmount)
refer to a subtree of some fs.  In this case - preexisting subtree.

Mount tree consists of vfsmounts; there's nothing that would prohibit
several vfsmounts refering to the subtrees of the same dentry tree/same
(sub)tree/etc.

Al, carefully not saying what he really thinks of inotify; completely unfit
for repeating in public...