Re: [PATCH] Futexes IV (Fast Lightweight Userspace Semaphores)

Alan Cox (alan@lxorguk.ukuu.org.uk)
Sat, 9 Mar 2002 01:11:55 +0000 (GMT)

> > cmpxchg-doubleword, still its not fool proof.
>
> Uh, just the pid would do. Maybe reserve a bit to indicate contention,
> but surly one word would be enough.

Make it a dword, the 16bit pid is beginning to look strained on big
boxes
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