Re: [PATCH 1/2] New system call, unshare

[serge]

Quoting Alan Cox (alan@xxxxxxxxxxxxxxxxxxx):
> On Llu, 2005-08-08 at 09:33 -0400, Janak Desai wrote:
> > 
> > [PATCH 1/2] unshare system call: System Call handler function sys_unshare
> 
> 
> Given the complexity of the kernel code involved and the obscurity of
> the functionality why not just do another clone() in userspace to
> unshare the things you want to unshare and then _exit the parent ?

The problem I had when I tried using just clone() was that it's
not possible to have a pam library clone() and have the process
being authenticated end up with the new namespace.  At least not
that I could figure out.  Seemed possible that cloning, exiting the
original thread, and returning from the new thread could work, but
it didn't seem to work when I tried it.

thanks,
-serge
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