On Mon, Aug 28, 2000 at 12:18:52PM +0200, Manuel Bouyer wrote:

 > fork1() is:
 > int fork1(struct proc *p1, int flags, int exitsig, void *stack,
 >   size_t stacksize, void (*func)(void *), void *arg, register_t *retval,
 >   struct proc **rnewprocp)
 > 
 > So fork1() can be called with p1 != curproc (p1 may be suspended, but
 > not curproc). Now, in the current code nothing may do this, but I can't see
 > any reason to dissalow it (otherwise change the interface to remove p1 and
 > always use curproc).

Actually, the only thing p1 != curproc is allows is if p1 == &proc0, i.e.
you are creating a kernel thread.

-- 
        -- Jason R. Thorpe <thorpej@zembu.com>