From mboxrd@z Thu Jan 1 00:00:00 1970 From: Andi Kleen Subject: Re: [PATCH 0/5][RFC] Physical PCI slot objects Date: Wed, 14 Nov 2007 16:08:01 +0100 Message-ID: <20071114150801.GH17145@one.firstfloor.org> References: <20071113000853.GA13341@ldl.fc.hp.com> <20071113170129.GA20185@kroah.com> <20071114141751.GS17785@parisc-linux.org> <20071114143533.GF17145@one.firstfloor.org> <20071114150025.GU17785@parisc-linux.org> Mime-Version: 1.0 Content-Type: text/plain; charset=us-ascii Return-path: Received: from one.firstfloor.org ([213.235.205.2]:53117 "EHLO one.firstfloor.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1754257AbXKNPIF (ORCPT ); Wed, 14 Nov 2007 10:08:05 -0500 Content-Disposition: inline In-Reply-To: <20071114150025.GU17785@parisc-linux.org> Sender: linux-acpi-owner@vger.kernel.org List-Id: linux-acpi@vger.kernel.org To: Matthew Wilcox Cc: Andi Kleen , Greg KH , Alex Chiang , gregkh@suse.de, kristen.c.accardi@intel.com, lenb@kernel.org, richard.jones2@hp.com, linux-kernel@vger.kernel.org, linux-pci@atrey.karlin.mff.cuni.cz, pcihpd-discuss@lists.sourceforge.net, linux-acpi@vger.kernel.org On Wed, Nov 14, 2007 at 08:00:25AM -0700, Matthew Wilcox wrote: > On Wed, Nov 14, 2007 at 03:35:33PM +0100, Andi Kleen wrote: > > It becomes much more when someone does a find /sys. dentries are > > expensive. They eventually can get pruned again, but it's still > > costly to do that. > > Again, if this is a big concern for you, there are better places to look > at for savings. Whoever is proposing a feature has the burden to justify that its usefulness is larger than the overhead/cost it adds. Doesn't seem to be the case with this one so far. And in general ignoring overhead in new features is a pretty sad approach. Big bloat does come in small steps with each new feature. -Andi