Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S965386AbbENDzn (ORCPT ); Wed, 13 May 2015 23:55:43 -0400 Received: from ozlabs.org ([103.22.144.67]:57095 "EHLO ozlabs.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S933137AbbENDzl (ORCPT ); Wed, 13 May 2015 23:55:41 -0400 Date: Thu, 14 May 2015 13:55:17 +1000 From: Paul Mackerras To: Ingo Molnar Cc: Borislav Petkov , Andrew Morton , Jonathan Corbet , Peter Zijlstra , Josh Triplett , Andy Lutomirski , Ingo Molnar , "H. Peter Anvin" , Thomas Gleixner , Linus Torvalds , linux-api@vger.kernel.org, linux-kernel@vger.kernel.org, x86@kernel.org, linux-arch@vger.kernel.org Subject: Re: [RFC PATCH v6] Documentation/arch: Add Documentation/arch-features.txt Message-ID: <20150514035517.GA27285@drongo.ozlabs.ibm.com> References: <20150512142250.dcb053da81855ae1b5861173@linux-foundation.org> <20150512213843.GV21418@twins.programming.kicks-ass.net> <20150512144910.0b49c9a7a13336773449db33@linux-foundation.org> <20150513083441.GA17336@gmail.com> <20150513085636.GA11030@gmail.com> <20150513092421.GB11030@gmail.com> <20150513094622.GC11030@gmail.com> <20150513094756.GD11030@gmail.com> <20150513131835.GJ1517@pd.tnic> <20150513134842.GA1657@gmail.com> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20150513134842.GA1657@gmail.com> User-Agent: Mutt/1.5.23 (2014-03-12) Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 981 Lines: 24 On Wed, May 13, 2015 at 03:48:42PM +0200, Ingo Molnar wrote: > > Updated patch attached - I've added a few more features to the last > table, and restructured the explanations, now every feature > description also lists the Kconfig variable that it's tracking, e.g.: > > irq time acct: HAVE_IRQ_TIME_ACCOUNTING Regarding that one specifically, as far as I can see, HAVE_IRQ_TIME_ACCOUNTING is only relevant for tick-based time accounting. If you have CONFIG_VIRT_CPU_ACCOUNTING you get accurate irq time accounting with or without HAVE_IRQ_TIME_ACCOUNTING. So how about making this one: irq time acct: HAVE_IRQ_TIME_ACCOUNTING || VIRT_CPU_ACCOUNTING That would make the "irq time acct" entry for powerpc be "ok". Paul. -- 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/