From owner-freebsd-arch@FreeBSD.ORG Sat Aug 18 14:56:46 2007 Return-Path: Delivered-To: freebsd-arch@FreeBSD.org Received: from mx1.freebsd.org (mx1.freebsd.org [IPv6:2001:4f8:fff6::34]) by hub.freebsd.org (Postfix) with ESMTP id 9DF0416A417; Sat, 18 Aug 2007 14:56:46 +0000 (UTC) (envelope-from bright@elvis.mu.org) Received: from elvis.mu.org (elvis.mu.org [192.203.228.196]) by mx1.freebsd.org (Postfix) with ESMTP id 8D16313C481; Sat, 18 Aug 2007 14:56:46 +0000 (UTC) (envelope-from bright@elvis.mu.org) Received: by elvis.mu.org (Postfix, from userid 1192) id 1E3251A4D7C; Sat, 18 Aug 2007 07:23:37 -0700 (PDT) Date: Sat, 18 Aug 2007 07:23:37 -0700 From: Alfred Perlstein To: Pawel Jakub Dawidek Message-ID: <20070818142337.GW90381@elvis.mu.org> References: <20070818120056.GA6498@garage.freebsd.pl> Mime-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20070818120056.GA6498@garage.freebsd.pl> User-Agent: Mutt/1.4.2.3i Cc: freebsd-arch@FreeBSD.org Subject: Re: Lockless uidinfo. X-BeenThere: freebsd-arch@freebsd.org X-Mailman-Version: 2.1.5 Precedence: list List-Id: Discussion related to FreeBSD architecture List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Sat, 18 Aug 2007 14:56:47 -0000 * Pawel Jakub Dawidek [070818 05:31] wrote: > Hi. > > The patch below remove per-uidinfo locks: > > http://people.freebsd.org/~pjd/patches/uidinfo_lockless.patch In uifree() is it ok to manually check the refcount for 0? I'm gussing the hashmtx is used as a barrier? -Alfred