From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1752994Ab3CKHOP (ORCPT ); Mon, 11 Mar 2013 03:14:15 -0400 Received: from szxga02-in.huawei.com ([119.145.14.65]:26245 "EHLO szxga02-in.huawei.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1751403Ab3CKHOL (ORCPT ); Mon, 11 Mar 2013 03:14:11 -0400 Message-ID: <513D8433.8000806@huawei.com> Date: Mon, 11 Mar 2013 15:13:55 +0800 From: "zhangwei(Jovi)" User-Agent: Mozilla/5.0 (Windows NT 6.1; rv:17.0) Gecko/17.0 Thunderbird/17.0 MIME-Version: 1.0 To: "linux-kernel@vger.kernel.org" , Steven Rostedt , Frederic Weisbecker , Ingo Molnar Subject: [PATCH 06/13] tracing: remove dump_ran check in __ftrace_dump Content-Type: text/plain; charset="ISO-8859-1" Content-Transfer-Encoding: 7bit X-Originating-IP: [10.66.58.241] X-CFilter-Loop: Reflected Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org It's reasonable to call __ftrace_dump function not only once, so remove the dump_ran variable checking. Signed-off-by: zhangwei(Jovi) --- kernel/trace/trace.c | 6 ------ 1 file changed, 6 deletions(-) diff --git a/kernel/trace/trace.c b/kernel/trace/trace.c index 090eddb..4cec7b8 100644 --- a/kernel/trace/trace.c +++ b/kernel/trace/trace.c @@ -5106,17 +5106,12 @@ __ftrace_dump(bool disable_tracing, enum ftrace_dump_mode oops_dump_mode) /* use static because iter can be a bit big for the stack */ static struct trace_iterator iter; unsigned int old_userobj; - static int dump_ran; unsigned long flags; int cnt = 0, cpu; /* only one dump */ local_irq_save(flags); arch_spin_lock(&ftrace_dump_lock); - if (dump_ran) - goto out; - - dump_ran = 1; tracing_off(); @@ -5206,7 +5201,6 @@ __ftrace_dump(bool disable_tracing, enum ftrace_dump_mode oops_dump_mode) tracing_on(); } - out: arch_spin_unlock(&ftrace_dump_lock); local_irq_restore(flags); } -- 1.7.9.7