On Fri, Sep 01, 2000 at 06:15:52PM -0700, Linus Torvalds wrote:
>
> if (!has_done_this_before) {
> pid_t tid;
> has_done_this_before = 1;
> tid = clone(CLONE_PID);
I'm not sure this will work very well (2.4.0test8-pre1):
int do_fork(unsigned long clone_flags, unsigned long usp, struct pt_regs *regs)
{
int retval = -ENOMEM;
struct task_struct *p;
DECLARE_MUTEX_LOCKED(sem);
if (clone_flags & CLONE_PID) {
/* This is only allowed from the boot up thread */
if (current->pid)
return -EPERM;
}
So it would require fixing CLONE_PID first, which is probably nasty.
Without it it'll still require the context switches when you're calling
pthread_create from the "original" thread.
-Andi
-
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majordomo@vger.kernel.org
Please read the FAQ at http://www.tux.org/lkml/
This archive was generated by hypermail 2b29 : Thu Sep 07 2000 - 21:00:12 EST