Received: by 2002:a25:23cc:0:0:0:0:0 with SMTP id j195csp1670810ybj; Wed, 6 May 2020 03:06:50 -0700 (PDT) X-Google-Smtp-Source: APiQypLn7im4gYTpVgqmP0drpJFJNwE6Cd2X4jqrUbXzvcG3v6Gnr/EAI56Rc8X/Q8tfb+60+1lK X-Received: by 2002:aa7:d342:: with SMTP id m2mr6287190edr.341.1588759609874; Wed, 06 May 2020 03:06:49 -0700 (PDT) ARC-Seal: i=1; a=rsa-sha256; t=1588759609; cv=none; d=google.com; s=arc-20160816; b=V5FhzxLN7WqVKOhXW0kxk255onEx9POC8h//UpzZv4nkTgVADuscqg5eIh9rRvmWja Za6cAf/fYw69xxpbF75g/eMRfpfwDaiELOv7jIyEzWEWhMJ1JgPohid1PNMPQYp2nmFV Teowf4rkeFyhFkYcX1qcQ/aDvHXfyGOU56mDuqCubBV5l2l/QVB7v/ZgGuXq6OIuBQ9B 5/89Ut6ndUca/VThGUtRw9t6Pr8VRM77XT1mVBb1BmjG9/jB8aFXEHgE2u+sD1EQG9wb q+YjmdWIkf0dUPFPsRcpQby0sJ400/wmY3ILJ/KgjVZy7DCjAIYfxyih7/JPeDBqV5vL ATRg== ARC-Message-Signature: i=1; a=rsa-sha256; c=relaxed/relaxed; d=google.com; s=arc-20160816; h=list-id:precedence:sender:user-agent:in-reply-to :content-disposition:mime-version:references:message-id:subject:cc :to:from:date:dkim-signature; bh=hisy4FfcANfVY69ugOc5P7tdWlvofA+codCJ8A0yxi8=; b=AUeZ3gnn20RNfqQZOek1lDCED6pY+4Gc0JwseYHVSfKPssZ5ln44X+QbF0HKDN7vXV WWQvUiO1He7LU2irFJGXMPR15Y4rH8d+qw5QctJjSGp2Heov6B6ERKgSFKBEoBKiN0yW x3bZIzfRXw/rD2C+t8oYrcLXeMB1E+8JVpcVrmEiZtfVHLDmWXFPIfkMz3ECrqw32X/I HC2lsrYPbZDi4XmBqZ7los7blsiRHt2sz2/JqrqSaHLVTldGR5s3WVRxH23xv6D2f8qR RYpX14SYOXJXspPBrCyr1jJV/3WckKZl3EtZiKTMJQovirCiuizp7xAMnnijXH9dUZRy CDwA== ARC-Authentication-Results: i=1; mx.google.com; dkim=pass header.i=@alien8.de header.s=dkim header.b=XmQBFBEA; spf=pass (google.com: domain of linux-kernel-owner@vger.kernel.org designates 23.128.96.18 as permitted sender) smtp.mailfrom=linux-kernel-owner@vger.kernel.org; dmarc=pass (p=NONE sp=NONE dis=NONE) header.from=alien8.de Return-Path: Received: from vger.kernel.org (vger.kernel.org. [23.128.96.18]) by mx.google.com with ESMTP id r11si873691edc.575.2020.05.06.03.06.26; Wed, 06 May 2020 03:06:49 -0700 (PDT) Received-SPF: pass (google.com: domain of linux-kernel-owner@vger.kernel.org designates 23.128.96.18 as permitted sender) client-ip=23.128.96.18; Authentication-Results: mx.google.com; dkim=pass header.i=@alien8.de header.s=dkim header.b=XmQBFBEA; spf=pass (google.com: domain of linux-kernel-owner@vger.kernel.org designates 23.128.96.18 as permitted sender) smtp.mailfrom=linux-kernel-owner@vger.kernel.org; dmarc=pass (p=NONE sp=NONE dis=NONE) header.from=alien8.de Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1728591AbgEFKDD (ORCPT + 99 others); Wed, 6 May 2020 06:03:03 -0400 Received: from mail.skyhub.de ([5.9.137.197]:60164 "EHLO mail.skyhub.de" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1728314AbgEFKDD (ORCPT ); Wed, 6 May 2020 06:03:03 -0400 Received: from zn.tnic (p200300EC2F06960035CE382CC05E0B20.dip0.t-ipconnect.de [IPv6:2003:ec:2f06:9600:35ce:382c:c05e:b20]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by mail.skyhub.de (SuperMail on ZX Spectrum 128k) with ESMTPSA id E32101EC030F; Wed, 6 May 2020 12:03:01 +0200 (CEST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=alien8.de; s=dkim; t=1588759382; h=from:from:reply-to:subject:subject:date:date:message-id:message-id: to:to:cc:cc:mime-version:mime-version:content-type:content-type: content-transfer-encoding:in-reply-to:in-reply-to: references:references; bh=hisy4FfcANfVY69ugOc5P7tdWlvofA+codCJ8A0yxi8=; b=XmQBFBEAiiKlfQyRzFFR90/blg4/TDHouBNQXaKylX6xkWGUrba+zsYjvLIOP91IcIV1iG EwA907JiLyyOM2mmrK61zahgehT1R6L2f9Sn2S7AgLkkh/yWgXenkseXvC/cUzBt7sXxTY 2LBUo/C+wc62tXB4U72qcxy6uuNzliM= Date: Wed, 6 May 2020 12:02:56 +0200 From: Borislav Petkov To: Thomas Gleixner Cc: LKML , x86@kernel.org, "Paul E. McKenney" , Andy Lutomirski , 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 , "Peter Zijlstra (Intel)" Subject: Re: [patch V4 part 1 03/36] sched: Clean up scheduler_ipi() Message-ID: <20200506100256.GC25532@zn.tnic> References: <20200505131602.633487962@linutronix.de> <20200505134058.361859938@linutronix.de> <20200506084019.GB25532@zn.tnic> <87ftcdo29o.fsf@nanos.tec.linutronix.de> MIME-Version: 1.0 Content-Type: text/plain; charset=utf-8 Content-Disposition: inline In-Reply-To: <87ftcdo29o.fsf@nanos.tec.linutronix.de> 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 Wed, May 06, 2020 at 11:12:35AM +0200, Thomas Gleixner wrote: > It was NOP long ago. Now it's Minimal OPeration :) LOL, a new instruction: MOP. I can think of a couple of x86 instructions which can be MOPs. :-P -- Regards/Gruss, Boris. https://people.kernel.org/tglx/notes-about-netiquette