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To: linux-kernel@vger.kernel.org
From: "H. Peter Anvin" <hpa@zytor.com>
Subject: Re: furwocks: Fast Userspace Read/Write Locks
Date: 7 Mar 2002 12:17:52 -0800
Organization: Transmeta Corporation, Santa Clara CA
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In-Reply-To: <E16iwkE-000216-00@wagner.rustcorp.com.au> <20020307153228.3A6773FE06@smtp.linux.ibm.com> <20020307104241.D24040@devserv.devel.redhat.com> <20020307191043.9C5F33FE15@smtp.linux.ibm.com>
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Followup to:  <20020307191043.9C5F33FE15@smtp.linux.ibm.com>
By author:    Hubertus Franke <frankeh@watson.ibm.com>
In newsgroup: linux.dev.kernel
> 
> Take a look at Rusty's futex-1.2, the code is not that different, however
> if its all inlined it creates additional code on the critical path 
> and why do it if not necessary.
> 
> In this case the futexes are the well tested path, the rest is a cludge on
> top of it.
> 

Perhaps someone could give a high-level description of how these
"futexes" work?

	-hpa
-- 
<hpa@transmeta.com> at work, <hpa@zytor.com> in private!
"Unix gives you enough rope to shoot yourself in the foot."
http://www.zytor.com/~hpa/puzzle.txt	<amsp@zytor.com>
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