From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id ; Mon, 29 Jul 2002 12:08:16 -0400 Received: (majordomo@vger.kernel.org) by vger.kernel.org id ; Mon, 29 Jul 2002 12:08:16 -0400 Received: from [195.223.140.120] ([195.223.140.120]:23624 "EHLO penguin.e-mind.com") by vger.kernel.org with ESMTP id ; Mon, 29 Jul 2002 12:08:16 -0400 Date: Mon, 29 Jul 2002 18:11:35 +0200 From: Andrea Arcangeli To: Pavel Machek Cc: Dipankar Sarma , Linus Torvalds , davej@suse.de, linux-kernel@vger.kernel.org, Rusty Russell , Paul McKenney Subject: Re: [PATCH] Read-Copy Update 2.5.28 [resent] Message-ID: <20020729161135.GT1201@dualathlon.random> References: <20020725222146.A12780@in.ibm.com> <20020726132107.D16440@in.ibm.com> <20020729083007.GA115@elf.ucw.cz> Mime-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20020729083007.GA115@elf.ucw.cz> User-Agent: Mutt/1.3.27i X-GnuPG-Key-URL: http://e-mind.com/~andrea/aa.gnupg.asc X-PGP-Key-URL: http://e-mind.com/~andrea/aa.asc Sender: linux-kernel-owner@vger.kernel.org X-Mailing-List: linux-kernel@vger.kernel.org On Mon, Jul 29, 2002 at 10:30:08AM +0200, Pavel Machek wrote: > Hi! > > > Currently, it seems useful for - > > > > 1. CPU hotplug (synchronize_kernel()) > > 2. ipv4 route cache lookup > > 3. dentry cache lookup [ more results and new patch on the way ] > > 4. Potential uses in XFS (Christoph ?) > > Can it be used to make module unloading less painfull? yes of course, we just do this in 2.4 too. It doesn't cover all the possible cases though, but it gives additional guarantees that you can rely on and that's enough for most cases. Andrea