Received: by 2002:a25:ad19:0:0:0:0:0 with SMTP id y25csp2233142ybi; Mon, 1 Jul 2019 08:27:01 -0700 (PDT) X-Google-Smtp-Source: APXvYqxg77lkVzMHHrjB8SMit04TQlD/cb/d3Yg2/dzscY6d0sb6d9tdyqfD/PWaDN9KpGAtxn9v X-Received: by 2002:a65:648e:: with SMTP id e14mr25904301pgv.317.1561994821740; Mon, 01 Jul 2019 08:27:01 -0700 (PDT) ARC-Seal: i=1; a=rsa-sha256; t=1561994821; cv=none; d=google.com; s=arc-20160816; b=R9Oi5o2VjePzFBONXjSuclY6KPaxI4wvsT1vhT7Qp6j3NmY9/Alm81gxyw0TqEt1Ef Y51SodicQTkV3/VSTXXM+YEkMZVcru+gcAN50NP2z3tPCgFVHovm8Uqpp1hNH3OSLN04 pvkfAYJDAeI57BNu03/xhy5pwbJCVgmakPd+8mXKYQOfeC3WI2tMIywOONaeM73VWlNV Dsdjnp/B+8SzZuvfzYKiDV/P5X6UhDxAzh25t22EDynj+BROff94MF2N1tMyJok+CfZ9 32zOGrrcVLGLNxtnyrv6aSs/dhBzE5Tqu2UQyJhNbULVVtuYAkG+cwRcJkFlJ1flYSKB FcGg== 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=1VgSGVjpsEKQCpHjQPsE3k7/QPeWcXfFA1BNcMXYV+k=; b=YDmt+FILsBNGmDe5zyZj0QFQBHOLQ9gOQ85tfw1otczUxEzkNRNmlYMhBzBKwnvuFo Q4/5NI1ZrzWyevbvd9ow4Xfe7cy8365TL6jEV40t1CmY2i9wkPynnL6hRmBxrE3VAkca Cltp4JyMNmw+RDtVJYXAOvQN0a76QGoTMPjMNq/PDxeguNN69BvzkWysAIdIt05AbtDu kLEI+i69iCf3VjqWNQxB2s0OKe8GLOjY+e6LGEsjVJ4Cv9WVbCBsqpPzAIZOIcBzQ+gj T4egodxAToqJBegwB9pnFY0Wz/W+refTUJnxRueqm/Slf2QOrns9bNp5KTBRQeGZ2Goj t/kQ== ARC-Authentication-Results: i=1; mx.google.com; dkim=fail header.i=@infradead.org header.s=merlin.20170209 header.b=e0eQTdyp; spf=pass (google.com: best guess record for domain of linux-kernel-owner@vger.kernel.org designates 209.132.180.67 as permitted sender) smtp.mailfrom=linux-kernel-owner@vger.kernel.org Return-Path: Received: from vger.kernel.org (vger.kernel.org. [209.132.180.67]) by mx.google.com with ESMTP id r19si10171486pgl.203.2019.07.01.08.26.46; Mon, 01 Jul 2019 08:27:01 -0700 (PDT) Received-SPF: pass (google.com: best guess record for domain of linux-kernel-owner@vger.kernel.org designates 209.132.180.67 as permitted sender) client-ip=209.132.180.67; Authentication-Results: mx.google.com; dkim=fail header.i=@infradead.org header.s=merlin.20170209 header.b=e0eQTdyp; spf=pass (google.com: best guess record for domain of linux-kernel-owner@vger.kernel.org designates 209.132.180.67 as permitted sender) smtp.mailfrom=linux-kernel-owner@vger.kernel.org Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1729434AbfGAOLy (ORCPT + 99 others); Mon, 1 Jul 2019 10:11:54 -0400 Received: from merlin.infradead.org ([205.233.59.134]:35568 "EHLO merlin.infradead.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1729190AbfGAOLy (ORCPT ); Mon, 1 Jul 2019 10:11:54 -0400 DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=infradead.org; s=merlin.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=1VgSGVjpsEKQCpHjQPsE3k7/QPeWcXfFA1BNcMXYV+k=; b=e0eQTdypu+j4ID+vC5noLGjR8 hIdOqtE5Vhg4YXsOxyt9W8Hv+3ptW1lb78iDHgUP9l9RdAAKUUsvslOKH0gs55A4jLxSQkIT3cZlc oWMIuung6+0CdxofzWYO6RM8/EEiala4WYHO8esaryRpat9KkXiJd++9MLx0O+XZJaFrX1Zl2O/04 ar6hftauRih1j9TBEGCol/nbK1CoyrjrBHboeq3lvjjH+KlWCJn7TOeqkFrAYqIu0seQ0rba7tfTZ 1MU4w3HrEk11TxIHL62NvW6UkzcPdG+AuBtAe8ZfY+yjM7E9AQU6BU3YNuZ5lejLTuOOMnMyw4bon evJWDMoig==; Received: from j217100.upc-j.chello.nl ([24.132.217.100] helo=hirez.programming.kicks-ass.net) by merlin.infradead.org with esmtpsa (Exim 4.92 #3 (Red Hat Linux)) id 1hhx21-0008JF-FH; Mon, 01 Jul 2019 14:11:46 +0000 Received: by hirez.programming.kicks-ass.net (Postfix, from userid 1000) id 2E24820A18920; Mon, 1 Jul 2019 16:11:44 +0200 (CEST) Date: Mon, 1 Jul 2019 16:11:44 +0200 From: Peter Zijlstra To: John Ogness Cc: linux-kernel@vger.kernel.org, Petr Mladek , Sergey Senozhatsky , Steven Rostedt , Linus Torvalds , Greg Kroah-Hartman , Andrea Parri , Thomas Gleixner , Sergey Senozhatsky Subject: Re: [RFC PATCH v2 1/2] printk-rb: add a new printk ringbuffer implementation Message-ID: <20190701141144.GZ3402@hirez.programming.kicks-ass.net> References: <20190607162349.18199-1-john.ogness@linutronix.de> <20190607162349.18199-2-john.ogness@linutronix.de> <20190618114747.GQ3436@hirez.programming.kicks-ass.net> <87k1df28x4.fsf@linutronix.de> <20190626224034.GK2490@worktop.programming.kicks-ass.net> <87mui2ujh2.fsf@linutronix.de> <20190628154435.GZ7905@worktop.programming.kicks-ass.net> <877e92f388.fsf@linutronix.de> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <877e92f388.fsf@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 Mon, Jul 01, 2019 at 12:39:35PM +0200, John Ogness wrote: > On 2019-06-28, Peter Zijlstra wrote: > > (Note that the qspinlock has a queue not unlike this, but that again > > doesn't have to bother with NMIs) > > Thank you for pointing this out! I will look to qspinlock for some > naming guidelines. Fair warning: qspinlock might hurt your brain; but if you do look and are unsure; let me know and I'll try and improve its comments.