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From: Rusty Russell <rusty@rustcorp.com.au>
To: Ingo Molnar <mingo@elte.hu>
Cc: jlnance@intrex.net, linux-kernel@vger.kernel.org,
       Ulrich Drepper <drepper@redhat.com>
Subject: Re: [ANNOUNCE] Native POSIX Thread Library 0.1 
In-reply-to: Your message of "Tue, 24 Sep 2002 07:47:14 +0200."
             <Pine.LNX.4.44.0209240741270.8943-100000@localhost.localdomain> 
Date: Tue, 24 Sep 2002 16:15:37 +1000
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In message <Pine.LNX.4.44.0209240741270.8943-100000@localhost.localdomain> you 
write:
> > And, ironically, using the futex implementation developed on IBM time 8).
> 
> you are right, futexes are really important for all the userspace locking
> primitives and thread-joining. And like basically all core kernel code,
> futexes were a collaborative effort as well:
> 
>  *  Thanks to Ben LaHaise for yelling "hashed waitqueues" loudly
>  *  enough at me, Linus for the original (flawed) idea, Matthew
>  *  Kirkwood for proof-of-concept implementation.

And yourself, Robert Love, Paul Mackerras and Hubertus Franke all
contributed to futexes directly, too.  I wasn't complaining about
credit, I just found the IBM involvement worth noting (in case someone
thought we were onesided).

> there are so many prerequisites to this that it's impossible to list them
> all.

True here, but in general: almost all the order-of-magnitude
scalability jumps in 2.5 can be traced back to you or Andrew Morton.
I wouldn't want a casual reader to miss that fact 8)

Cheers,
Rusty.
--
  Anyone who quotes me in their sig is an idiot. -- Rusty Russell.
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