From owner-freebsd-current@FreeBSD.ORG Sat Jul 24 00:40:50 2004 Return-Path: Delivered-To: freebsd-current@freebsd.org Received: from mx1.FreeBSD.org (mx1.freebsd.org [216.136.204.125]) by hub.freebsd.org (Postfix) with ESMTP id 285DB16A504 for ; Sat, 24 Jul 2004 00:40:50 +0000 (GMT) Received: from fledge.watson.org (fledge.watson.org [204.156.12.50]) by mx1.FreeBSD.org (Postfix) with ESMTP id 71A1943D49 for ; Sat, 24 Jul 2004 00:40:49 +0000 (GMT) (envelope-from robert@fledge.watson.org) Received: from fledge.watson.org (localhost [127.0.0.1]) by fledge.watson.org (8.12.11/8.12.11) with ESMTP id i6O0e3c5016547; Fri, 23 Jul 2004 20:40:03 -0400 (EDT) (envelope-from robert@fledge.watson.org) Received: from localhost (robert@localhost)i6O0e2jV016544; Fri, 23 Jul 2004 20:40:02 -0400 (EDT) (envelope-from robert@fledge.watson.org) Date: Fri, 23 Jul 2004 20:40:02 -0400 (EDT) From: Robert Watson X-Sender: robert@fledge.watson.org To: Julian Elischer In-Reply-To: <4101A5F1.50407@elischer.org> Message-ID: MIME-Version: 1.0 Content-Type: TEXT/PLAIN; charset=US-ASCII cc: current@freebsd.org Subject: Re: crfree/crhold mutex X-BeenThere: freebsd-current@freebsd.org X-Mailman-Version: 2.1.1 Precedence: list List-Id: Discussions about the use of FreeBSD-current List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Sat, 24 Jul 2004 00:40:50 -0000 On Fri, 23 Jul 2004, Julian Elischer wrote: > It's held for such small times.. shouldn't it be a spinlock? With the recent change to use adaptive mutexes by default, it should effectively be a spin mutex on SMP. Robert N M Watson FreeBSD Core Team, TrustedBSD Projects robert@fledge.watson.org Principal Research Scientist, McAfee Research