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Date: Fri, 8 Mar 2002 20:48:25 +0000 (GMT)
From: Matthew Kirkwood <matthew@hairy.beasts.org>
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To: Hubertus Franke <frankeh@watson.ibm.com>
cc: Linus Torvalds <torvalds@transmeta.com>,
        Rusty Russell <rusty@rustcorp.com.au>, <linux-kernel@vger.kernel.org>
Subject: Re: [PATCH] Futexes IV (Fast Lightweight Userspace Semaphores)
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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.

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