lkml.org 
[lkml]   [2008]   [Nov]   [9]   [last100]   RSS Feed
Views: [wrap][no wrap]   [headers]  [forward] 
 
Messages in this thread
/
SubjectRe: [TOMOYO #12 (2.6.28-rc2-mm1) 06/11] Common functions for TOMOYOLinux.
From
Date
Hello.

Serge E. Hallyn wrote:
> > There are two PIDs, PID seen from inside virtualized environment and
> > PID seen from outside virtualized environment. To clarify, let me call
> > the former "PIDv" and the latter "PIDg".
> >
> > PIDv is not system-wide unique. But PIDg is system-wide unique, aren't they?
> > The PID received from outside virtualized environment is PIDg and they are
> > system-wide unique, am I right?
>
> You are doing find_task_by_vpid(), so you are not looking up a task by
> global pid.
>
I need to clarify reachability of "struct task_struct".

A process inside a virtualized environment cannot reach "struct task_struct"
which belongs to outside the virtualized environment.

A process outside virtualized environments can reach "struct task_struct"
which belongs to inside virtualized environments, can't it?

Regards.


\
 
 \ /
  Last update: 2008-11-10 03:27    [W:0.059 / U:5.700 seconds]
©2003-2020 Jasper Spaans|hosted at Digital Ocean and TransIP|Read the blog|Advertise on this site