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=-5.8 required=3.0 tests=HEADER_FROM_DIFFERENT_DOMAINS, MAILING_LIST_MULTI,MENTIONS_GIT_HOSTING,SPF_HELO_NONE,SPF_PASS 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 5D872C433E0 for ; Thu, 21 May 2020 20:31:56 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id 3808E20878 for ; Thu, 21 May 2020 20:31:56 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1729678AbgEUUbz (ORCPT ); Thu, 21 May 2020 16:31:55 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:55416 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1729618AbgEUUbx (ORCPT ); Thu, 21 May 2020 16:31:53 -0400 Received: from Galois.linutronix.de (Galois.linutronix.de [IPv6:2a0a:51c0:0:12e:550::1]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 24733C05BD43 for ; Thu, 21 May 2020 13:31:53 -0700 (PDT) Received: from p5de0bf0b.dip0.t-ipconnect.de ([93.224.191.11] helo=nanos.tec.linutronix.de) by Galois.linutronix.de with esmtpsa (TLS1.2:DHE_RSA_AES_256_CBC_SHA256:256) (Exim 4.80) (envelope-from ) id 1jbrqT-0000GP-VC; Thu, 21 May 2020 22:31:14 +0200 Received: from nanos.tec.linutronix.de (localhost [IPv6:::1]) by nanos.tec.linutronix.de (Postfix) with ESMTP id 5C91D100606; Thu, 21 May 2020 22:31:13 +0200 (CEST) Message-Id: <20200521200513.656533920@linutronix.de> User-Agent: quilt/0.65 Date: Thu, 21 May 2020 22:05:13 +0200 From: Thomas Gleixner To: LKML Cc: Andy Lutomirski , Andrew Cooper , X86 ML , "Paul E. McKenney" , Alexandre Chartre , Frederic Weisbecker , Paolo Bonzini , Sean Christopherson , Masami Hiramatsu , Petr Mladek , Steven Rostedt , Joel Fernandes , Boris Ostrovsky , Juergen Gross , Brian Gerst , Mathieu Desnoyers , Josh Poimboeuf , Will Deacon , Tom Lendacky , Wei Liu , Michael Kelley , Jason Chen CJ , Zhao Yakui , "Peter Zijlstra (Intel)" Subject: [patch V9 00/39] x86/entry: Rework leftovers (was part V) Content-transfer-encoding: 8-bit X-Linutronix-Spam-Score: -1.0 X-Linutronix-Spam-Level: - X-Linutronix-Spam-Status: No , -1.0 points, 5.0 required, ALL_TRUSTED=-1,SHORTCIRCUIT=-0.0001 Sender: linux-kernel-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Folks! This is V9 of the rework series. V7 and V8 were never posted but I used the version numbers for tags while fixing up 0day complaints. The last posted version was V6 which can be found here: https://lore.kernel.org/r/20200515234547.710474468@linutronix.de The V9 leftover series is based on: git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip.git x86/entry That branch contains the merged part 1-4 of the original 5 part series. V9 has the following changes vs. V6: - Rebase on tip x86/entry - Simplified the hardware latency detector changes by moving the invocation to the right place in nmi_enter/exit() and annotate it. - Reworked the conditional RCU handling so it is now used unconditionally everywhere. That simplified the idtentry_enter/exit code significantly and also allowed to simplify the XEN hypercall voluntary preemption handling. - Moved the run on irq stack logic into an inline to avoid having the same conditionals all over the place and fixed up the relevant places. - Picked up Acked-by and Reviewed-by tags where appropriate. The full series is available from: git://git.kernel.org/pub/scm/linux/kernel/git/tglx/devel.git entry-v9-the-rest If we agree on the RCU changes, then these will be applied into the core/rcu branch first so Paul can pick them up to avoid the next conflict horrors. Thanks, tglx