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

Matthew Kirkwood
2002-03-08T20:49:33Z

On Fri, 8 Mar 2002, Hubertus Franke wrote:

> > So I would suggest making the size (and thus alignment check) of locks
> > at least 8 bytes (and preferably 16). That makes it slightly harder to
> > put locks on the stack, but gcc does support stack alignment, even if
> > the code sucks right now.

> Keeping it small, allows for the common case of mutex integration into
> data objects, though its not a big deal.

I guess we need to know what the requirements are of the fabled
"architectures which need special handling of PROT_SEM" before
we can tell whether this is a good idea or not.

Matthew.