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From: Al Viro <viro@ZenIV.linux.org.uk>
To: Joerg Schilling <schily@schily.net>
Cc: jack@suse.cz, otnaccess@hotmail.com,
	linux-fsdevel@vger.kernel.org, joerg@schily.net
Subject: Re: FW: Symbolic link with absolute target path in UDF - not working properly?
Date: Tue, 13 Dec 2011 20:26:53 +0000	[thread overview]
Message-ID: <20111213202653.GJ2203@ZenIV.linux.org.uk> (raw)
In-Reply-To: <4ee7ad60.v6cTrJDUPPEjdDhI%schily@schily.net>

On Tue, Dec 13, 2011 at 08:54:08PM +0100, Joerg Schilling wrote:
> Please reread my previous mail. Your problem is that you use the wrong linux 
> nomenclature while reading my text.
> 
> The pointer to the related "lofs" sourcecode explains how it works and why it 
> works as expected on Solaris. 
> 
> Note that a mount point relative absolute path needs to be evaluated against 
> the real original (first) mount and not against the second loopback mount. 

Except that unlike your lofs, bindings are symmetrical.  I.e. there is no
such thing as "real" mount - they are simply mounts refering to various
subtrees of given fs.  And mount --bind /foo/bar /baz does *not* render /foo
impossible to umount.  Not to mention that even on Solaris there's such
thing as chroot and you really don't want to open that can of worms...

  reply	other threads:[~2011-12-13 20:27 UTC|newest]

Thread overview: 12+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
     [not found] <SNT126-DS19FDA9F050C2D5E43731CDBEB40@phx.gbl>
2011-12-07 18:06 ` FW: Symbolic link with absolute target path in UDF - not working properly? Jan Kara
     [not found]   ` <SNT126-DS1C6361C26AD146EBA3BB6BEBE0@phx.gbl>
2011-12-12 14:18     ` Jan Kara
     [not found]       ` <SNT126-DS114F372B3DA7DF425B8146BEBC0@phx.gbl>
2011-12-13 11:01         ` Joerg Schilling
2011-12-13 16:13           ` Jan Kara
2011-12-13 18:30             ` Joerg Schilling
2011-12-13 19:25               ` Jan Kara
2011-12-13 19:54                 ` Joerg Schilling
2011-12-13 20:26                   ` Al Viro [this message]
2011-12-13 22:41                     ` Joerg Schilling
2011-12-14  0:45                       ` Al Viro
2011-12-14 17:34                         ` Joerg Schilling
2011-12-13 20:05                 ` Al Viro

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