From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1030610AbbKDPcu (ORCPT ); Wed, 4 Nov 2015 10:32:50 -0500 Received: from mail.kernel.org ([198.145.29.136]:37700 "EHLO mail.kernel.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S932832AbbKDPaR (ORCPT ); Wed, 4 Nov 2015 10:30:17 -0500 Message-Id: <20151104153012.642641268@goodmis.org> User-Agent: quilt/0.61-1 Date: Wed, 04 Nov 2015 10:29:43 -0500 From: Steven Rostedt To: linux-kernel@vger.kernel.org Cc: Ingo Molnar , Andrew Morton , Sasha Levin Subject: [for-next][PATCH 09/13] tracing: Allow dumping traces without tracking trace started cpus References: <20151104152934.825847519@goodmis.org> MIME-Version: 1.0 Content-Type: text/plain; charset=ISO-8859-15 Content-Disposition: inline; filename=0009-tracing-Allow-dumping-traces-without-tracking-trace-.patch Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org From: Sasha Levin We don't init iter->started when dumping the ftrace buffer, and there's no real need to do so - so allow skipping that check if the iter doesn't have an initialized ->started cpumask. Link: http://lkml.kernel.org/r/1441385156-27279-1-git-send-email-sasha.levin@oracle.com Signed-off-by: Sasha Levin Signed-off-by: Steven Rostedt --- kernel/trace/trace.c | 5 +++-- 1 file changed, 3 insertions(+), 2 deletions(-) diff --git a/kernel/trace/trace.c b/kernel/trace/trace.c index 67873c67665e..6459e141aac3 100644 --- a/kernel/trace/trace.c +++ b/kernel/trace/trace.c @@ -2671,13 +2671,14 @@ static void test_cpu_buff_start(struct trace_iterator *iter) if (!(iter->iter_flags & TRACE_FILE_ANNOTATE)) return; - if (cpumask_test_cpu(iter->cpu, iter->started)) + if (iter->started && cpumask_test_cpu(iter->cpu, iter->started)) return; if (per_cpu_ptr(iter->trace_buffer->data, iter->cpu)->skipped_entries) return; - cpumask_set_cpu(iter->cpu, iter->started); + if (iter->started) + cpumask_set_cpu(iter->cpu, iter->started); /* Don't print started cpu buffer for the first entry of the trace */ if (iter->idx > 1) -- 2.6.1