Re: [2.4.19] How to get the path name of a struct dentry

From: Torsten Foertsch (torsten.foertsch@gmx.net)
Date: Wed Mar 12 2003 - 07:38:42 EST


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On Wednesday 12 March 2003 11:47, Christoph Hellwig wrote:
> On Wed, Mar 12, 2003 at 11:38:27AM +0100, Torsten Foertsch wrote:
> > Next question, is there a way to get the dentry and vfsmount of /? I mean
> > not current->fs->root and current->fs->rootmnt. They can be chrooted. I
> > mean the real /.
>
> No. Esecially as there is not single "real" root.

That means one can build a system with 2 (or more) completely independent file
system areas combining chroot() and pivot_root(), doesn't it?

                                 fork()
                                   |
                   +---------------+--------------+
                   | |
             chroot /area1 |
                   | |
             signal parent ====================> pause
                   | |
                  ... pivot_root /area2
                                                  |
                                                 ...

Torsten
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