From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-2.3 required=3.0 tests=DKIM_INVALID,DKIM_SIGNED, HEADER_FROM_DIFFERENT_DOMAINS,MAILING_LIST_MULTI,SPF_PASS,USER_AGENT_MUTT autolearn=ham autolearn_force=no version=3.4.0 Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id 4761FC10F03 for ; Thu, 25 Apr 2019 12:04:35 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id 08AC02084B for ; Thu, 25 Apr 2019 12:04:35 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=fail reason="signature verification failed" (2048-bit key) header.d=infradead.org header.i=@infradead.org header.b="BCUbp0b7" Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1729303AbfDYMEe (ORCPT ); Thu, 25 Apr 2019 08:04:34 -0400 Received: from bombadil.infradead.org ([198.137.202.133]:34020 "EHLO bombadil.infradead.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1726071AbfDYMEc (ORCPT ); Thu, 25 Apr 2019 08:04:32 -0400 DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=infradead.org; s=bombadil.20170209; h=In-Reply-To:Content-Type:MIME-Version :References:Message-ID:Subject:Cc:To:From:Date:Sender:Reply-To: Content-Transfer-Encoding:Content-ID:Content-Description:Resent-Date: Resent-From:Resent-Sender:Resent-To:Resent-Cc:Resent-Message-ID:List-Id: List-Help:List-Unsubscribe:List-Subscribe:List-Post:List-Owner:List-Archive; bh=9wJ4ytdisYG3Dyck/NYmlZhUC8wmWDkB1Sd4twOrgK4=; b=BCUbp0b7fNwqwFex0ZMrd20u+ oXSQ0/uA2QSTv9f8XvJNfUi3YjLHjVp6UTxcCLgtrOYCatoRdBWkhSO+YocPac3flnAbQ3dVDJP4/ 1U3NPC0Tqc4BhA1UdnX/1hjCJSJaIxN2IGARrQLgUGq/XtVZaHe8VDLLFJBdAFc/WFr0Nyou5+CqX EOHJPrwYLzUowMREmdPXtNLYmA1ZoR2PrkcyRQGGKMRO8bMlvHdLo4hpSWqWNwbn1PpjPrRSIyBXN copfc6wFzLijXtmqLhc9vhonrn3kq7/wC7J9I3vUyv+IMf85r5lEewpuQ0gzyXJEm2J3GfOMG9OkD QriAA21cQ==; Received: from j217100.upc-j.chello.nl ([24.132.217.100] helo=hirez.programming.kicks-ass.net) by bombadil.infradead.org with esmtpsa (Exim 4.90_1 #2 (Red Hat Linux)) id 1hJd77-000170-0k; Thu, 25 Apr 2019 12:04:29 +0000 Received: by hirez.programming.kicks-ass.net (Postfix, from userid 1000) id 83AAE29C22B17; Thu, 25 Apr 2019 14:04:27 +0200 (CEST) Date: Thu, 25 Apr 2019 14:04:27 +0200 From: Peter Zijlstra To: Nicholas Piggin Cc: Thomas Gleixner , Frederic Weisbecker , Ingo Molnar , "Rafael J . Wysocki" , linux-kernel@vger.kernel.org, linux-arch@vger.kernel.org, linuxppc-dev@lists.ozlabs.org Subject: Re: [PATCH v2 0/5] Allow CPU0 to be nohz full Message-ID: <20190425120427.GS4038@hirez.programming.kicks-ass.net> References: <20190411033448.20842-1-npiggin@gmail.com> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20190411033448.20842-1-npiggin@gmail.com> User-Agent: Mutt/1.10.1 (2018-07-13) Sender: linux-kernel-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org On Thu, Apr 11, 2019 at 01:34:43PM +1000, Nicholas Piggin wrote: > Since last time, I added a compile time option to opt-out of this > if the platform does not support suspend on non-zero, and tried to > improve legibility of changelogs and explain the justification > better. > > I have been testing this on powerpc/pseries and it seems to work > fine (the firmware call to suspend can be called on any CPU and > resumes where it left off), but not included here because the > code has some bitrot unrelated to this series which I hacked to > fix. I will discuss it and either send an acked patch to go with > this series if it is small, or fix it in powerpc tree. > Rafael, Frederic, any comments?