From owner-p4-projects@FreeBSD.ORG  Tue Aug 15 15:30:33 2006
Return-Path: <owner-p4-projects@FreeBSD.ORG>
X-Original-To: p4-projects@freebsd.org
Delivered-To: p4-projects@freebsd.org
Received: by hub.freebsd.org (Postfix, from userid 32767)
	id BD67516A71F; Tue, 15 Aug 2006 15:30:33 +0000 (UTC)
X-Original-To: perforce@freebsd.org
Delivered-To: perforce@freebsd.org
Received: from mx1.FreeBSD.org (mx1.freebsd.org [216.136.204.125])
	by hub.freebsd.org (Postfix) with ESMTP id 9B47816A71B;
	Tue, 15 Aug 2006 15:30:33 +0000 (UTC) (envelope-from jhb@freebsd.org)
Received: from server.baldwin.cx (66-23-211-162.clients.speedfactory.net
	[66.23.211.162])
	by mx1.FreeBSD.org (Postfix) with ESMTP id A728943D46;
	Tue, 15 Aug 2006 15:30:32 +0000 (GMT) (envelope-from jhb@freebsd.org)
Received: from localhost.corp.yahoo.com (john@localhost [127.0.0.1])
	(authenticated bits=0)
	by server.baldwin.cx (8.13.6/8.13.6) with ESMTP id k7FFUMxr028219;
	Tue, 15 Aug 2006 11:30:27 -0400 (EDT) (envelope-from jhb@freebsd.org)
From: John Baldwin <jhb@freebsd.org>
To: Roman Divacky <rdivacky@freebsd.org>
Date: Tue, 15 Aug 2006 11:30:16 -0400
User-Agent: KMail/1.9.1
References: <200608151523.k7FFN7rN002736@repoman.freebsd.org>
In-Reply-To: <200608151523.k7FFN7rN002736@repoman.freebsd.org>
MIME-Version: 1.0
Content-Type: text/plain;
  charset="iso-8859-15"
Content-Transfer-Encoding: 7bit
Content-Disposition: inline
Message-Id: <200608151130.17341.jhb@freebsd.org>
X-Greylist: Sender succeeded SMTP AUTH authentication, not delayed by
	milter-greylist-2.0.2 (server.baldwin.cx [127.0.0.1]);
	Tue, 15 Aug 2006 11:30:28 -0400 (EDT)
X-Virus-Scanned: ClamAV 0.88.3/1663/Tue Aug 15 09:08:37 2006 on
	server.baldwin.cx
X-Virus-Status: Clean
X-Spam-Status: No, score=-4.4 required=4.2 tests=ALL_TRUSTED,AWL,BAYES_00 
	autolearn=ham version=3.1.3
X-Spam-Checker-Version: SpamAssassin 3.1.3 (2006-06-01) on server.baldwin.cx
Cc: Perforce Change Reviews <perforce@freebsd.org>
Subject: Re: PERFORCE change 104043 for review
X-BeenThere: p4-projects@freebsd.org
X-Mailman-Version: 2.1.5
Precedence: list
List-Id: p4 projects tree changes <p4-projects.freebsd.org>
List-Unsubscribe: <http://lists.freebsd.org/mailman/listinfo/p4-projects>,
	<mailto:p4-projects-request@freebsd.org?subject=unsubscribe>
List-Archive: <http://lists.freebsd.org/pipermail/p4-projects>
List-Post: <mailto:p4-projects@freebsd.org>
List-Help: <mailto:p4-projects-request@freebsd.org?subject=help>
List-Subscribe: <http://lists.freebsd.org/mailman/listinfo/p4-projects>,
	<mailto:p4-projects-request@freebsd.org?subject=subscribe>
X-List-Received-Date: Tue, 15 Aug 2006 15:30:34 -0000

On Tuesday 15 August 2006 11:23, Roman Divacky wrote:
> http://perforce.freebsd.org/chv.cgi?CH=104043
> 
> Change 104043 by rdivacky@rdivacky_witten on 2006/08/15 15:22:57
> 
> 	Grrrr. Do the locking/unlocking correctly this time.
> 
> Affected files ...
> 
> .. //depot/projects/soc2006/rdivacky_linuxolator/compat/linux/linux_futex.c#27 
edit
> 
> Differences ...
> 
> 
==== //depot/projects/soc2006/rdivacky_linuxolator/compat/linux/linux_futex.c#27 
(text+ko) ====
> 
> @@ -339,9 +339,13 @@
>  			return f;
>  		}
>  	}
> +	if (locked == FUTEX_UNLOCKED)
> +	   	FUTEX_UNLOCK;
>  
>  	/* Not found, create it */
>  	f = malloc(sizeof(*f), M_LINUX, M_WAITOK);
> +	if (locked == FUTEX_UNLOCKED)
> +	   	FUTEX_LOCK;
>  	f->f_uaddr = uaddr;
>  	f->f_refcount = 1;
>  	TAILQ_INIT(&f->f_waiting_proc);

This readds the race. :)  See my other e-mail on what you have to do to handle 
it.

-- 
John Baldwin