Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1759669AbXE3VjP (ORCPT ); Wed, 30 May 2007 17:39:15 -0400 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S1756870AbXE3Vi7 (ORCPT ); Wed, 30 May 2007 17:38:59 -0400 Received: from gw.goop.org ([64.81.55.164]:39839 "EHLO mail.goop.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1756860AbXE3Vi6 (ORCPT ); Wed, 30 May 2007 17:38:58 -0400 Message-ID: <465DEEEE.8040702@goop.org> Date: Wed, 30 May 2007 14:38:54 -0700 From: Jeremy Fitzhardinge User-Agent: Thunderbird 1.5.0.10 (X11/20070302) MIME-Version: 1.0 To: Ulrich Drepper CC: Linus Torvalds , Ingo Molnar , Jeff Garzik , Zach Brown , Linux Kernel Mailing List , Arjan van de Ven , Christoph Hellwig , Andrew Morton , Alan Cox , Evgeniy Polyakov , "David S. Miller" , Suparna Bhattacharya , Jens Axboe , Thomas Gleixner Subject: Re: Syslets, Threadlets, generic AIO support, v6 References: <20070529212718.GH7875@mami.zabbo.net> <465CA654.5000505@garzik.org> <20070530072055.GA3077@elte.hu> <465D286E.2080807@redhat.com> <20070530084252.GA15708@elte.hu> <465DE992.6070803@redhat.com> In-Reply-To: <465DE992.6070803@redhat.com> Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 7bit Sender: linux-kernel-owner@vger.kernel.org X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 785 Lines: 17 Ulrich Drepper wrote: > I don't like special cases. For me things better come in quantities 0, > 1, and unlimited (well, reasonable high limit). Otherwise, who gets to > use that special namespace? The C library is not the only body of code > which would want to use descriptors. Valgrind could certainly make use of it. It currently reserves a set of fds "high enough", and tries hard to hide them from apps, but /proc/self/fd makes it intractable in general (there was only so much simulation I was willing to do in Valgrind). J - To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/