From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S933108AbaGOTLv (ORCPT ); Tue, 15 Jul 2014 15:11:51 -0400 Received: from mail-wg0-f42.google.com ([74.125.82.42]:48130 "EHLO mail-wg0-f42.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S932850AbaGOTLt (ORCPT ); Tue, 15 Jul 2014 15:11:49 -0400 From: Andreas Gruenbacher To: Peter Zijlstra , Ingo Molnar , linux-kernel@vger.kernel.org Cc: Andreas Gruenbacher Subject: [PATCH] lockdep: Only ask for /proc/lock_stat output when available Date: Tue, 15 Jul 2014 21:10:52 +0200 Message-Id: <1405451452-3824-1-git-send-email-andreas.gruenbacher@gmail.com> X-Mailer: git-send-email 1.8.3.1 Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org When lockdep turns itself off, the following message is logged: Please attach the output of /proc/lock_stat to the bug report Omit this message when CONFIG_LOCK_STAT is off, and /proc/lock_stat doesn't exist. Signed-off-by: Andreas Gruenbacher --- kernel/locking/lockdep.c | 2 ++ 1 file changed, 2 insertions(+) diff --git a/kernel/locking/lockdep.c b/kernel/locking/lockdep.c index d24e433..88d0d44 100644 --- a/kernel/locking/lockdep.c +++ b/kernel/locking/lockdep.c @@ -384,7 +384,9 @@ static void print_lockdep_off(const char *bug_msg) { printk(KERN_DEBUG "%s\n", bug_msg); printk(KERN_DEBUG "turning off the locking correctness validator.\n"); +#ifdef CONFIG_LOCK_STAT printk(KERN_DEBUG "Please attach the output of /proc/lock_stat to the bug report\n"); +#endif } static int save_trace(struct stack_trace *trace) -- 1.8.3.1