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=-0.6 required=3.0 tests=DKIM_INVALID,DKIM_SIGNED, HEADER_FROM_DIFFERENT_DOMAINS,MAILING_LIST_MULTI,SPF_HELO_NONE,SPF_PASS autolearn=no 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 B91A3C433E0 for ; Wed, 27 May 2020 15:54:04 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id 8294620776 for ; Wed, 27 May 2020 15:54:04 +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="fJtbwXZA" Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S2390508AbgE0PyD (ORCPT ); Wed, 27 May 2020 11:54:03 -0400 Received: from merlin.infradead.org ([205.233.59.134]:53448 "EHLO merlin.infradead.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S2390381AbgE0PwF (ORCPT ); Wed, 27 May 2020 11:52:05 -0400 DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=infradead.org; s=merlin.20170209; h=Subject:Cc:To:From:Date:Message-ID: Sender:Reply-To:MIME-Version:Content-Type:Content-Transfer-Encoding: Content-ID:Content-Description:In-Reply-To:References; bh=gWuxMg7NlTEFrNlbUropzj9kFD0wZ/EZEXmaMx5s6w4=; b=fJtbwXZAChpjnqipnsX2w6QcoF xSeVz1feK9mkhUsKOCmyoWn+/N4p3p5PDny4N4E4UfphD/UkDTfIxT2CCV6xeY6MCQGz70wBALLNC TW5XStR9a9eO9jp18Dp9U1BdhcJq91W5BC2lSn2U6GtUB591V2kNUypzl1g6FTQShsldxrKfZEe+C CpcID7mhm+HXglFaLviR+ttQYTvmfXqSkcPnKimd5ftDk/Txpa7uiP3kR0Rq0j+lufrsIpHIb3fk+ XSAY5X9i/Oa66MHyWqAhs6wZGBzj9fdZsd/Bo/7Cx2w/DHHJD3PYNRcavLl8jbFDIF0/e7T+obHok lfu8qbyA==; Received: from j217100.upc-j.chello.nl ([24.132.217.100] helo=noisy.programming.kicks-ass.net) by merlin.infradead.org with esmtpsa (Exim 4.92.3 #3 (Red Hat Linux)) id 1jdyLX-00012v-3s; Wed, 27 May 2020 15:51:59 +0000 Received: from hirez.programming.kicks-ass.net (hirez.programming.kicks-ass.net [192.168.1.225]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (Client did not present a certificate) by noisy.programming.kicks-ass.net (Postfix) with ESMTPS id F21EF30793C; Wed, 27 May 2020 17:51:49 +0200 (CEST) Received: by hirez.programming.kicks-ass.net (Postfix, from userid 0) id ACFA52023E7C6; Wed, 27 May 2020 17:51:49 +0200 (CEST) Message-ID: <20200527154527.233385756@infradead.org> User-Agent: quilt/0.66 Date: Wed, 27 May 2020 17:45:27 +0200 From: Peter Zijlstra To: mingo@kernel.org, will@kernel.org, tglx@linutronix.de Cc: x86@kernel.org, linux-kernel@vger.kernel.org, a.darwish@linutronix.de, rostedt@goodmis.org, bigeasy@linutronix.de, peterz@infradead.org Subject: [PATCH 0/6] x86/entry,lockdep: Improve IRQ state tracking Sender: linux-kernel-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Ahmed and Sebastian wanted additional lockdep_assert*() macros and ran into header hell. Move the IRQ state into per-cpu variables, which removes the dependency on task_struct, which is what generated the header-hell. And fix IRQ state tracking to not be affected by lockdep_off() (it really should not have been anyway) and extends IRQ state tracking across (x86) NMIs.