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 A47A7C43381 for ; Sat, 16 Feb 2019 10:32:55 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id 754DC222DD for ; Sat, 16 Feb 2019 10:32:55 +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="phZcaNBP" Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1731516AbfBPKcx (ORCPT ); Sat, 16 Feb 2019 05:32:53 -0500 Received: from bombadil.infradead.org ([198.137.202.133]:51318 "EHLO bombadil.infradead.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1726335AbfBPKcx (ORCPT ); Sat, 16 Feb 2019 05:32:53 -0500 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=3EcQWiX/CRLDgctPl+JlYpV6742xtIDMvMxTk2IX8YU=; b=phZcaNBP+lNGP120uZQzYpq3t QlsGJOtUGAMpvpbCbGBLvTWZoXwuWL9Cs7lqF1H8+SvX5vs9aPjN7u7KgxCl/TjsIYLsbEGgd2Usn ciWi31zzjpjCyYNqmxTkqT8o/xNswqFQxrfaT+uzKt4vLdA3VNo/FA713SJpfp3sV1hjMv4iMbyUH v7TCr/xc0+kGYNZT9vSRC7fGJ/hBkeVDZM8WYa9oz+ii3oEgtrv65Ed3Gfy97dU7kqu1VkOIFT86G LT7zuKqel3s9uxsu3L1kLg4VqmcZBjZlef8qMspV812Jdi/f4S/XhZnTVT4h4Q/IcbC4zdZESbLSY EtxB2Dqnw==; 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 1guxH5-0004Gk-RH; Sat, 16 Feb 2019 10:32:48 +0000 Received: by hirez.programming.kicks-ass.net (Postfix, from userid 1000) id 28F3C201A4021; Sat, 16 Feb 2019 11:32:46 +0100 (CET) Date: Sat, 16 Feb 2019 11:32:46 +0100 From: Peter Zijlstra To: Linus Torvalds Cc: Brian Gerst , Andy Lutomirski , Julien Thierry , Will Deacon , Ingo Molnar , Linux Kernel Mailing List , "linux-alpha@vger.kernel.org" , Ingo Molnar , Catalin Marinas , James Morse , "H. Peter Anvin" , valentin.schneider@arm.com, Josh Poimboeuf , Andy Lutomirski , Borislav Petkov , Denys Vlasenko , Thomas Gleixner Subject: Re: [PATCH] sched/x86: Save [ER]FLAGS on context switch Message-ID: <20190216103246.GS32494@hirez.programming.kicks-ass.net> References: <20190213222146.GC32494@hirez.programming.kicks-ass.net> <20190214101429.GD32494@hirez.programming.kicks-ass.net> <20190214193432.GR32477@hirez.programming.kicks-ass.net> <20190215174034.GP32494@hirez.programming.kicks-ass.net> <20190215233414.GS32534@hirez.programming.kicks-ass.net> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: 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 Fri, Feb 15, 2019 at 04:21:46PM -0800, Linus Torvalds wrote: > Even just a comment about it would be fine. But it might also be good > to show that it's an explicit eflags value and just use > X86_EFLAGS_FIXED as the initializer. That is in fact what I have now; I'll repost on Monday or so.