Re: mount namespace : who mounted what ?

[Daniel Lezcano]

On 06/04/2010 06:01 AM, Al Viro wrote:
> On Thu, Jun 03, 2010 at 10:04:13PM +0200, Daniel Lezcano wrote:
>    
> > Hi all,
> >
> > I was wondering, in a new mount namespace, if it is possible to know
> > which mount points were inherited and which were mounted in a new
> > namespace ?
> >
> > I looked at /proc/<pid>/mountinfo and investigated a bit on the
> > mount id, but this one is not reliable as it changes in the new
> > namespace. The /proc/<pid>/mounts file shows all the mount points
> > visible for the process inherited or not.
> >      
> No more than "had it been this process that mmaped that area or was it
> inherited from the parent?"
>    

Ok, thanks.

I thought it may be interessting to add this information in the procfs 
(eg. /proc/<pid>/mountprivate) but wrt your remark that should have no 
sense as, to be consistent, we should do the same for all kind of 
inherited resources.
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