Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1754534AbYANImn (ORCPT ); Mon, 14 Jan 2008 03:42:43 -0500 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S1752263AbYANImf (ORCPT ); Mon, 14 Jan 2008 03:42:35 -0500 Received: from brick.kernel.dk ([87.55.233.238]:16589 "EHLO kernel.dk" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1752183AbYANIme (ORCPT ); Mon, 14 Jan 2008 03:42:34 -0500 Date: Mon, 14 Jan 2008 09:42:32 +0100 From: Jens Axboe To: Christoph Hellwig Cc: Ingo Molnar , David Dillow , Guillaume Chazarain , linux-kernel@vger.kernel.org, linux-btrace@vger.kernel.org, mingo@redhat.com, tglx@linutronix.de, Andrew Morton Subject: Re: [patch] block: fix blktrace timestamps Message-ID: <20080114084231.GQ6258@kernel.dk> References: <20080111092334.GA8143@elte.hu> <20080111092513.GO6258@kernel.dk> <20080111094205.GE8143@elte.hu> <20080111095654.GR6258@kernel.dk> <20080111102953.GA27223@elte.hu> <20080111122802.GT6258@kernel.dk> <20080111132106.GA16496@elte.hu> <20080111171855.GX6258@kernel.dk> <20080114075114.GA13195@elte.hu> <20080114083901.GA17897@infradead.org> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20080114083901.GA17897@infradead.org> Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 1118 Lines: 31 On Mon, Jan 14 2008, Christoph Hellwig wrote: > > Folks, this is getting a little silly. It is > Even if CONFIG_NO_HZ is new this is a an important regression, and > yes we should avoid regressions wherever we can, and for such a quite > important feature we should fix it. On the other hand blktrace is using > the wrong interface, and it has been told multiple times on lkml that > sched_clock() should never ever be used outside the scheduler. So the > burden to fix this regression lies on the shoulders of the blktrace > maintainer. That is true. So far alternatives have all been slower though, so not very tempting to transition to. > No need for silly name calling here. I don't know what thread you are reading, but neiter Ingo nor I have resorted to silly name calling. The thread has long since diverted from the original topic, though. -- Jens Axboe -- 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/