From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S263728AbUERXOm (ORCPT ); Tue, 18 May 2004 19:14:42 -0400 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S263731AbUERXOm (ORCPT ); Tue, 18 May 2004 19:14:42 -0400 Received: from waste.org ([209.173.204.2]:21188 "EHLO waste.org") by vger.kernel.org with ESMTP id S263728AbUERXOl (ORCPT ); Tue, 18 May 2004 19:14:41 -0400 Date: Tue, 18 May 2004 18:13:01 -0500 From: Matt Mackall To: Andrew Morton Cc: Andrea Arcangeli , steiner@sgi.com, paulmck@us.ibm.com, linux-kernel@vger.kernel.org Subject: Re: RCU scaling on large systems Message-ID: <20040518231301.GU5414@waste.org> References: <20040501120805.GA7767@sgi.com> <20040502182811.GA1244@us.ibm.com> <20040503184006.GA10721@sgi.com> <20040507205048.GB1246@us.ibm.com> <20040507220654.GA32208@sgi.com> <20040507163235.11cd94ce.akpm@osdl.org> <20040517211834.GI3044@dualathlon.random> <20040517144228.7172d681.akpm@osdl.org> Mime-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20040517144228.7172d681.akpm@osdl.org> User-Agent: Mutt/1.3.28i Sender: linux-kernel-owner@vger.kernel.org X-Mailing-List: linux-kernel@vger.kernel.org On Mon, May 17, 2004 at 02:42:28PM -0700, Andrew Morton wrote: > Andrea Arcangeli wrote: > > note that I changed my tree to free all negative entries that are > > currently generated by unlink. I find useless to leave negative dentries > > after "unlink". I leave them of course after a failed lookup (that's the > > fundamental usage of the negative dentries for the PATHs userspace > > lookups), but not after unlink. > > Sounds sensible. Could you please send out the patch? Seems like it'll be the wrong thing for the fairly common lockfile case and also stuff like make clean all. -- Matt Mackall : http://www.selenic.com : Linux development and consulting