Re: [PATCH] Qemu support for PPC

[Christoph Hellwig]

On Mon, Apr 07, 2003 at 06:34:17PM +1000, Rusty Russell wrote:
> Oh good: a serious question.  Why don't we drop the personality field
> in struct task_struct and just use exec_domain?  Then the flags could
> be unfolded from the personality number, and placed in a "flags"
> element in struct exec_domain, the personality() macro would vanish,
> the set_personality() macro would vanish, and things would be
> generally clearer?

The personality number is exposed through sys_personality, so unfortunately
we can't get rid of it.  I still wonder what crack the person inviting this
scheme was smoking, though..

> That applies to any kernel mod, of course.  qemu is much more usable
> (ie. it's sanely packagable) with this functionality, ie. it's pretty
> much a requirement for increasing adoption.

You can just easily let it run in a chroot or separate namespace,
you just won't get second look semantics. (Personally I think that's
a benefit, but some people disagree with this).