Re: your mail

[Herbert Poetzl]

On Mon, May 24, 2004 at 03:20:33PM -0700, Laughlin, Joseph V wrote:
> I've been tasked with modifying a 2.4 kernel so that a non-root user can
> do the following:
> 
> Dynamically change the priorities of processes (up and down)
> Lock processes in memory
> Can change process cpu affinity
> 
> Anyone got any ideas about how I could start doing this?  (I'm new to
> kernel development, btw.)

check the kernel capability system ...
(it's quite simple)

#define CAP_SYS_NICE         23
#define CAP_IPC_LOCK         14

cpu scheduler affinity isn't part of 2.4 AFAIK
so there is no easy way to 'control' it ...

HTH,
Herbert

> Thanks,
> 
> Joe Laughlin
> Phantom Works - Integrated Technology Development Labs 
> The Boeing Company
> 
> 
> 
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