From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1758809AbdELSoG (ORCPT ); Fri, 12 May 2017 14:44:06 -0400 Received: from mail.kernel.org ([198.145.29.99]:41848 "EHLO mail.kernel.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1755796AbdELSoF (ORCPT ); Fri, 12 May 2017 14:44:05 -0400 DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org 0AEDF23986 Authentication-Results: mail.kernel.org; dmarc=none (p=none dis=none) header.from=goodmis.org Authentication-Results: mail.kernel.org; spf=none smtp.mailfrom=rostedt@goodmis.org Date: Fri, 12 May 2017 14:44:02 -0400 From: Steven Rostedt To: "Paul E. McKenney" Cc: linux-kernel@vger.kernel.org, Thomas Gleixner , Peter Zijlstra , Ingo Molnar , Mathieu Desnoyers , Masami Hiramatsu Subject: Re: [RFC][PATCH 3/5] kprobes: Take get_online_cpus() before taking jump_label_lock() Message-ID: <20170512144402.4611a5ef@gandalf.local.home> In-Reply-To: <20170512183911.GB3956@linux.vnet.ibm.com> References: <20170512171544.100715273@goodmis.org> <20170512172450.127400191@goodmis.org> <20170512183911.GB3956@linux.vnet.ibm.com> X-Mailer: Claws Mail 3.14.0 (GTK+ 2.24.31; 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 List-ID: X-Mailing-List: linux-kernel@vger.kernel.org On Fri, 12 May 2017 11:39:11 -0700 "Paul E. McKenney" wrote: > On Fri, May 12, 2017 at 01:15:47PM -0400, Steven Rostedt wrote: > > From: "Steven Rostedt (VMware)" > > > > jump_label_lock() is taken under get_online_cpus(). Make sure that kprobes > > follows suit. > > > > Signed-off-by: Steven Rostedt (VMware) > > The remaining three (3/5 through 5/5) look straightforward. #4 appears > to be the one needing the recursive get_online_cpus(). In deed it is. Thanks for looking at these. -- Steve