On Wed, May 29, 2002 at 09:38:29PM -0300, Marcelo Tosatti wrote:
> 
> 
> On Thu, 30 May 2002, Andrea Arcangeli wrote:
> 
> > Only in 2.4.19pre8aa3: 00_get_pid-no-deadlock-and-boosted-3
> > Only in 2.4.19pre9aa1: 10_get_pid-no-deadlock-and-boosted-4
> >
> > 	Discard the inferior attempt in pre9 and rediff (as Ihno noticed in
> > 	practice the complexity dominates, if you fill the pid space the fix in
> > 	mainline is useless anyways). Wonder why this much better fix isn't
> > 	been merged instead (it is been submitted for both 2.2 and 2.4).
> > 	This also fix a longstanding fork race present even in 2.2 that can
> > 	lead to two tasks getting the same pid.
> 
> Could you be more verbose in explaining the problems with the current
> approach and the advantages of your patch ?

see the attached email (I got no reply IIRC), I sent it to you and Linus
some week ago (only for the commentary, the latest version of the patch
is 10_get_pid-no-deadlock-and-boosted-4, that btw, probably it won't apply
anymore cleanly against pristine pre9 mainline because I put o1 at the
very top of the patch-chain, because it's the thing most likely to need
updates at the moment)

Andrea