Re: [patch] threading fix, tid-2.5.47-A3

[Linus Torvalds]

On Sun, 17 Nov 2002, Ulrich Drepper wrote:
> 
> which works for me.  But since in schedule_tail() the code reads
> 
> +       if (current->user_tid)
> +               put_user(current->pid, current->user_tid);
> 
> this enables writing the TID even if CLONE_CHILD_SETTID isn't set.  The
> question is: how to access the clone flag information in the child?

The alternate approach is to just say that using CLEARTID without SETTID 
is a bug. I think that's the right approach.

		Linus