From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S964886Ab2GLXJd (ORCPT ); Thu, 12 Jul 2012 19:09:33 -0400 Received: from mail-pb0-f46.google.com ([209.85.160.46]:46543 "EHLO mail-pb0-f46.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1162839Ab2GLXGI (ORCPT ); Thu, 12 Jul 2012 19:06:08 -0400 From: Greg Kroah-Hartman To: linux-kernel@vger.kernel.org, stable@vger.kernel.org Cc: Greg KH , torvalds@linux-foundation.org, akpm@linux-foundation.org, alan@lxorguk.ukuu.org.uk, Frederic Weisbecker , Ingo Molnar , Laurent Chavey , Justin Teravest , David Sharp , Vaibhav Nagarnaik , Steven Rostedt Subject: [ 54/68] tracing: change CPU ring buffer state from tracing_cpumask Date: Thu, 12 Jul 2012 16:02:28 -0700 Message-Id: <20120712175040.215945708@linuxfoundation.org> X-Mailer: git-send-email 1.7.10.1.362.g242cab3 In-Reply-To: <20120712175035.530652872@linuxfoundation.org> References: <20120712175057.GA9917@kroah.com> <20120712175035.530652872@linuxfoundation.org> User-Agent: quilt/0.60-20.3 Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org From: Greg KH 3.0-stable review patch. If anyone has any objections, please let me know. ------------------ From: Vaibhav Nagarnaik commit 71babb2705e2203a64c27ede13ae3508a0d2c16c upstream. According to Documentation/trace/ftrace.txt: tracing_cpumask: This is a mask that lets the user only trace on specified CPUS. The format is a hex string representing the CPUS. The tracing_cpumask currently doesn't affect the tracing state of per-CPU ring buffers. This patch enables/disables CPU recording as its corresponding bit in tracing_cpumask is set/unset. Link: http://lkml.kernel.org/r/1336096792-25373-3-git-send-email-vnagarnaik@google.com