Received: by 2002:a05:6902:102b:0:0:0:0 with SMTP id x11csp3035299ybt; Mon, 29 Jun 2020 13:31:09 -0700 (PDT) X-Google-Smtp-Source: ABdhPJza1pTsTb3BzDApNeLH7Pxzn4GXSeQGOMYefzyR70Z9xXs7imDIpMRnO6yB5plV6Beszzm7 X-Received: by 2002:aa7:d802:: with SMTP id v2mr12561365edq.77.1593462669478; Mon, 29 Jun 2020 13:31:09 -0700 (PDT) ARC-Seal: i=1; a=rsa-sha256; t=1593462669; cv=none; d=google.com; s=arc-20160816; b=nR3xsXULkp1n40f84ei5ct92cntzPRL6SjO4FQZybPiv7wJscIBcn1GeHYsYHs+r8r 9RppOGrbodisMFJMdKbKFJMSbRyPliBRCuInJPZeAmgSvNmHqyXBl25Rn3eH2WlUpTSb pWGsncJdzOppAYKysQ261TLITGwhtD8d4nYcdNqhGWS5JxmJPQi9fin5fdW/bLRUn2kp Au1C11SLepGKEW4pljpb/BlugOJgfiaygcm2/57kx1+Rjrm8n5L7PON3Wc6iCxDlQgMj 2sPeRmT6FP+8WQqMO8IjcB1nesveNRZGh6wIHmPW+vYQr3uODjtSFFGJZoeO8c62PJJg W7bg== ARC-Message-Signature: i=1; a=rsa-sha256; c=relaxed/relaxed; d=google.com; s=arc-20160816; h=list-id:precedence:sender:content-transfer-encoding:mime-version :references:in-reply-to:message-id:subject:cc:to:from:date; bh=W+X+tiFpYDW0usaGIBhD+aN4kpbLrUxGJ9XevGkAQjw=; b=tH1UVnvC9ydEx3MBKn18sSQQfMraJSyfEBdXTnHETSNXC7v/MjtPr+YCn0psy4In9c S0DZ6uU8IZnRQaHxlQeCQUfBGwoQNdYuaLRrqQ5m+YVrZl7qiUQia68LCRcMeI3G35Jo Rz9P1jSXDzzD0I3KIhilA1XLomInpuQi/+3FKvJ7O/QV5uxrq6xuyhW+QXqqOmWrw9WX PHKTU+Uk2vs9mhjxwuesQS0LfJhRxZr6mbxxpsnbNF1B6xzIv8aOBPPptJpBhMXgfQY8 +pLQMNJSNeT0aY5deQE7AeziIVeUUJ9ahP6sJIjFWabFxqCMbxEFmubqIuojHMYX/q+m j6wg== ARC-Authentication-Results: i=1; mx.google.com; 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 Return-Path: Received: from vger.kernel.org (vger.kernel.org. [23.128.96.18]) by mx.google.com with ESMTP id u10si330175edp.574.2020.06.29.13.30.47; Mon, 29 Jun 2020 13:31:09 -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; 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 Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S2389047AbgF2U3e (ORCPT + 99 others); Mon, 29 Jun 2020 16:29:34 -0400 Received: from mail.kernel.org ([198.145.29.99]:37024 "EHLO mail.kernel.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1732150AbgF2TZW (ORCPT ); Mon, 29 Jun 2020 15:25:22 -0400 Received: from oasis.local.home (cpe-66-24-58-225.stny.res.rr.com [66.24.58.225]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by mail.kernel.org (Postfix) with ESMTPSA id 2D8F72538D; Mon, 29 Jun 2020 15:40:59 +0000 (UTC) Date: Mon, 29 Jun 2020 11:40:57 -0400 From: Steven Rostedt To: "Paul E. McKenney" Cc: Nicholas Piggin , Anton Blanchard , linux-kernel@vger.kernel.org Subject: Re: [PATCH] ring-buffer: speed up buffer resets by avoiding synchronize_rcu for each CPU Message-ID: <20200629114057.7a832299@oasis.local.home> In-Reply-To: <20200629153511.GX9247@paulmck-ThinkPad-P72> References: <20200625053403.2386972-1-npiggin@gmail.com> <20200629153511.GX9247@paulmck-ThinkPad-P72> X-Mailer: Claws Mail 3.17.3 (GTK+ 2.24.32; x86_64-pc-linux-gnu) MIME-Version: 1.0 Content-Type: text/plain; charset=US-ASCII Content-Transfer-Encoding: 7bit Sender: linux-kernel-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org On Mon, 29 Jun 2020 08:35:11 -0700 "Paul E. McKenney" wrote: > Looks plausible from an RCU viewpoint: > > Acked-by: Paul E. McKenney Thanks Nicholas, Anton and Paul, I'll pull this in and start testing it. -- Steve