From owner-cvs-all@FreeBSD.ORG Wed Oct 27 10:37:48 2004 Return-Path: Delivered-To: cvs-all@freebsd.org Received: from mx1.FreeBSD.org (mx1.freebsd.org [216.136.204.125]) by hub.freebsd.org (Postfix) with ESMTP id B2E0216A4CE; Wed, 27 Oct 2004 10:37:48 +0000 (GMT) Received: from critter.freebsd.dk (critter.freebsd.dk [212.242.86.163]) by mx1.FreeBSD.org (Postfix) with ESMTP id 1A4F243D54; Wed, 27 Oct 2004 10:37:48 +0000 (GMT) (envelope-from phk@critter.freebsd.dk) Received: from critter.freebsd.dk (localhost [127.0.0.1]) by critter.freebsd.dk (8.13.1/8.13.1) with ESMTP id i9RAbkmh071112; Wed, 27 Oct 2004 12:37:46 +0200 (CEST) (envelope-from phk@critter.freebsd.dk) To: Don Lewis From: "Poul-Henning Kamp" In-Reply-To: Your message of "Wed, 27 Oct 2004 03:19:52 PDT." <200410271019.i9RAJqTi020328@gw.catspoiler.org> Date: Wed, 27 Oct 2004 12:37:46 +0200 Message-ID: <71111.1098873466@critter.freebsd.dk> Sender: phk@critter.freebsd.dk cc: cvs-src@FreeBSD.org cc: src-committers@FreeBSD.org cc: cvs-all@FreeBSD.org Subject: Re: cvs commit: src/sys/kern vfs_subr.c src/sys/sys buf.h bufobj.h vnode.h X-BeenThere: cvs-all@freebsd.org X-Mailman-Version: 2.1.1 Precedence: list List-Id: CVS commit messages for the entire tree List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Wed, 27 Oct 2004 10:37:48 -0000 In message <200410271019.i9RAJqTi020328@gw.catspoiler.org>, Don Lewis writes: >On 27 Oct, Poul-Henning Kamp wrote: > >> I am still not convinced that even having the generic syncer is a >> good idea. I think it would make a lot more sense to park a kthread >> on each mountpoint to act as syncer for that mountpoint. And then >> _maybe_ have a bufobj method that says "reduce your footprint" in >> some sort of way to keep the global balance. > >I think this idea has a lot of merit. [...] There are man unknowns and at least I need to do some prototyping to see where I end up if I do it one way or another. For instance: If the syncer is something the filesystem starts at its own discretion, there wouldn't be a need for a syncer for R/O filesystems. -- Poul-Henning Kamp | UNIX since Zilog Zeus 3.20 phk@FreeBSD.ORG | TCP/IP since RFC 956 FreeBSD committer | BSD since 4.3-tahoe Never attribute to malice what can adequately be explained by incompetence.