From owner-freebsd-hackers@FreeBSD.ORG  Fri Jun  1 10:41:38 2007
Return-Path: <owner-freebsd-hackers@FreeBSD.ORG>
X-Original-To: hackers@FreeBSD.org
Delivered-To: freebsd-hackers@FreeBSD.ORG
Received: from mx1.freebsd.org (mx1.freebsd.org [69.147.83.52])
	by hub.freebsd.org (Postfix) with ESMTP id 8455F16A41F
	for <hackers@FreeBSD.org>; Fri,  1 Jun 2007 10:41:38 +0000 (UTC)
	(envelope-from Artis.Caune@latnet.lv)
Received: from esbens.latnet.lv (esbens.latnet.lv [159.148.19.115])
	by mx1.freebsd.org (Postfix) with ESMTP id 354DD13C43E
	for <hackers@FreeBSD.org>; Fri,  1 Jun 2007 10:41:38 +0000 (UTC)
	(envelope-from Artis.Caune@latnet.lv)
Received: from localhost (localhost.localdomain [127.0.0.1])
	by esbens.latnet.lv (Postfix) with ESMTP id BC72916C580
	for <hackers@FreeBSD.org>; Fri,  1 Jun 2007 13:19:45 +0300 (EEST)
X-Virus-Scanned: Debian amavisd-new at esbens.latnet.lv
Received: from esbens.latnet.lv ([127.0.0.1])
	by localhost (esbens.latnet.lv [127.0.0.1]) (amavisd-new, port 10024)
	with ESMTP id UrRTP8ORThgS for <hackers@FreeBSD.org>;
	Fri,  1 Jun 2007 13:19:44 +0300 (EEST)
Received: from [159.148.108.245] (didii.latnet.lv [159.148.108.245])
	by esbens.latnet.lv (Postfix) with ESMTP id 8741316C577
	for <hackers@FreeBSD.org>; Fri,  1 Jun 2007 13:19:07 +0300 (EEST)
Message-ID: <465FF29B.3010307@latnet.lv>
Date: Fri, 01 Jun 2007 13:19:07 +0300
From: Artis Caune <Artis.Caune@latnet.lv>
User-Agent: Thunderbird 1.5.0.10 (X11/20070327)
MIME-Version: 1.0
To: hackers@FreeBSD.org
Content-Type: text/plain; charset=UTF-8; format=flowed
Content-Transfer-Encoding: 7bit
Cc: 
Subject: stopping callouts
X-BeenThere: freebsd-hackers@freebsd.org
X-Mailman-Version: 2.1.5
Precedence: list
List-Id: Technical Discussions relating to FreeBSD
	<freebsd-hackers.freebsd.org>
List-Unsubscribe: <http://lists.freebsd.org/mailman/listinfo/freebsd-hackers>, 
	<mailto:freebsd-hackers-request@freebsd.org?subject=unsubscribe>
List-Archive: <http://lists.freebsd.org/pipermail/freebsd-hackers>
List-Post: <mailto:freebsd-hackers@freebsd.org>
List-Help: <mailto:freebsd-hackers-request@freebsd.org?subject=help>
List-Subscribe: <http://lists.freebsd.org/mailman/listinfo/freebsd-hackers>,
	<mailto:freebsd-hackers-request@freebsd.org?subject=subscribe>
X-List-Received-Date: Fri, 01 Jun 2007 10:41:38 -0000

Hello FreeBSD-hackers!

what is the right way to stop callout which is initialized with mutex:
   callout_init_mtx(&callout_function, &my_mtx, 0);

should I lock mutex before calling callout_drain() or not?

man page says: callout_drain() is identical to callout_stop() and
if the callout has an associated mutex, then that mutex must be held 
when callout_stop() is called.


/* MOD_UNLOAD */

MTX_LOCK;
callout_drain()
MTX_UNLOCK;