From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1755510Ab1KDNC6 (ORCPT ); Fri, 4 Nov 2011 09:02:58 -0400 Received: from 173-166-109-252-newengland.hfc.comcastbusiness.net ([173.166.109.252]:33999 "EHLO bombadil.infradead.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1751230Ab1KDNC4 (ORCPT ); Fri, 4 Nov 2011 09:02:56 -0400 Date: Fri, 4 Nov 2011 09:02:25 -0400 From: Christoph Hellwig To: Pekka Enberg Cc: Christoph Hellwig , Linus Torvalds , Avi Kivity , Andrew Morton , Ingo Molnar , linux-kernel@vger.kernel.org, kvm@vger.kernel.org Subject: Re: [RFC/GIT PULL] Linux KVM tool for v3.2 Message-ID: <20111104130225.GA24563@infradead.org> References: <20111104121601.GA15206@infradead.org> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: User-Agent: Mutt/1.5.21 (2010-09-15) X-SRS-Rewrite: SMTP reverse-path rewritten from by bombadil.infradead.org See http://www.infradead.org/rpr.html Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org On Fri, Nov 04, 2011 at 02:35:18PM +0200, Pekka Enberg wrote: > We are reusing kernel code and headers and I am not interested in > copying them over. Living in the kernel tree is part of the design, > whether you like it or not. That's pretty much a blanko argument for throwing everything into the kernel. What's next, throwing your jvm into the kernel because you like some kernel helpers? We've been through this a few times - there is no reason why a tool using the KVM ioctls should be considered close to the kernel - all other users get away just fine staying out of tree, and that has helped to keep the ABI stable. This sounds more like you should create a libkernelutil with useful data structures we use in the kernel for userspace programs. I'd love to use that for a few projects, btw.