[Devel] Re: Per-instance devpts

[Al Viro]

On Fri, Aug 01, 2008 at 12:23:44PM -0700, Dave Hansen wrote:
> On Fri, 2008-08-01 at 11:12 -0700, H. Peter Anvin wrote:
> > 1. /dev/ptmx would have to change to a symlink, ptmx -> pts/ptmx.
> ...
> > I worry #1 would have substantial user-space impact, but I don't see a 
> > way around it, since there would be no obvious way to associate 
> > /dev/ptmx with a filesystem.
> 
> Are your worries just about replacing what is now a normal file with a
> symlink, and the behavioral changes that come with that?  
> 
> I wonder if using a bind mount for the file would be more robust.  We
> wouldn't, of course, be able to do it persistently, but I bet it would
> be something we could count on udev to do for us.

Not on my boxen.  However, devpts tends to be mounted by initscripts,
which is where one would naturally do that.
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