Re: get vfsmount from dentry

[Jan Hudec <bulb@ucw.cz>]

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On Mon, Mar 13, 2006 at 02:04:13 +0530, Ashish Khurange wrote:
> Al Viro wrote:
> 
> >mkdir /tmp/1
> >mkdir /tmp/2
> >mkdir /tmp/3
> >mount --bind /tmp/2 /tmp/1
> >mkdir /tmp/1/a
> >umount /tmp/1
> >mount --bind /tmp/3 /tmp/1
> >mkdir /tmp/1/a
> >umount /tmp/1
> >
> >What output do you want to get from the last two mkdir() calls, assuming
> >you do have vfsmounts?  What is this output useful for?
> > 
> Well, forget about this particualr case.
> My final aim is to build online file system mirroring tool for home 
> directories. And lets assuming that no other user have superuser 
> privilage to use mount or make symbolic links to directories.
> I want entire pathname of changed file to replicate that change on the 
> corresponding file in the mirror site.

And why do you need abvolute paths for that? You only need paths
relative to root of that particular filesystem -- and you can get those
without vfsmount.

-- 
						 Jan 'Bulb' Hudec <bulb@ucw.cz>

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