Re: [RFC][PATCH] cpus_allowed/launch_policy patch, 2.4.16

[Davide Libenzi]

On Wed, 5 Dec 2001, Matthew Dobson wrote:

> pid_t enforce_launch_policy_fork() {
>         pid_t pp = fork();
>         if (pp == 0) {
>                 set_affinity(getpid(), get_affinity());
>                 ...
>         }
>         return pp;
> }
>
> but, as soon as one of them exec()'s their no longer going to be using your
> functions.

That's the point, cpus_allowed is automatically inherited by the child in
kernel/fork.c
So once you spawn a child with the proposed function, all its dinasty (
if it's not explicitly changed ) will have the same cpu affinity.

- Davide