From nobody Fri Apr 17 23:54:54 2026 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by smtp.lore.kernel.org (Postfix) with ESMTP id 06EFBC433EF for ; Wed, 20 Jul 2022 13:02:19 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S233197AbiGTNCR (ORCPT ); Wed, 20 Jul 2022 09:02:17 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:34228 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S232958AbiGTNCP (ORCPT ); Wed, 20 Jul 2022 09:02:15 -0400 Received: from www262.sakura.ne.jp (www262.sakura.ne.jp [202.181.97.72]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id C898E51A33 for ; Wed, 20 Jul 2022 06:02:13 -0700 (PDT) Received: from fsav112.sakura.ne.jp (fsav112.sakura.ne.jp [27.133.134.239]) by www262.sakura.ne.jp (8.15.2/8.15.2) with ESMTP id 26KD1kWe058439; Wed, 20 Jul 2022 22:01:46 +0900 (JST) (envelope-from penguin-kernel@I-love.SAKURA.ne.jp) Received: from www262.sakura.ne.jp (202.181.97.72) by fsav112.sakura.ne.jp (F-Secure/fsigk_smtp/550/fsav112.sakura.ne.jp); Wed, 20 Jul 2022 22:01:46 +0900 (JST) X-Virus-Status: clean(F-Secure/fsigk_smtp/550/fsav112.sakura.ne.jp) Received: from [192.168.1.9] (M106072142033.v4.enabler.ne.jp [106.72.142.33]) (authenticated bits=0) by www262.sakura.ne.jp (8.15.2/8.15.2) with ESMTPSA id 26KD1eHM058414 (version=TLSv1.2 cipher=AES256-GCM-SHA384 bits=256 verify=NO); Wed, 20 Jul 2022 22:01:46 +0900 (JST) (envelope-from penguin-kernel@I-love.SAKURA.ne.jp) Message-ID: <6acb20ea-7f9c-120a-c8c5-9ee5d511d766@I-love.SAKURA.ne.jp> Date: Wed, 20 Jul 2022 22:01:36 +0900 MIME-Version: 1.0 User-Agent: Mozilla/5.0 (Windows NT 6.3; Win64; x64; rv:91.0) Gecko/20100101 Thunderbird/91.11.0 Content-Language: en-US To: Peter Zijlstra , Ingo Molnar , Will Deacon Cc: linux-kernel@vger.kernel.org From: Tetsuo Handa Subject: [PATCH] locking/lockdep: use pr_warn_once for reporting that lockdep is turned off Content-Transfer-Encoding: quoted-printable Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Content-Type: text/plain; charset="utf-8" debug_show_all_locks() can be called for multiple times if hung_task_call_panic =3D 0. No need to repeat this message. Signed-off-by: Tetsuo Handa --- kernel/locking/lockdep.c | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) diff --git a/kernel/locking/lockdep.c b/kernel/locking/lockdep.c index 64a13eb56078..27be3c83c753 100644 --- a/kernel/locking/lockdep.c +++ b/kernel/locking/lockdep.c @@ -6490,7 +6490,7 @@ void debug_show_all_locks(void) struct task_struct *g, *p; =20 if (unlikely(!debug_locks)) { - pr_warn("INFO: lockdep is turned off.\n"); + pr_warn_once("INFO: lockdep is turned off.\n"); return; } pr_warn("\nShowing all locks held in the system:\n"); @@ -6518,7 +6518,7 @@ EXPORT_SYMBOL_GPL(debug_show_all_locks); void debug_show_held_locks(struct task_struct *task) { if (unlikely(!debug_locks)) { - printk("INFO: lockdep is turned off.\n"); + pr_warn_once("INFO: lockdep is turned off.\n"); return; } lockdep_print_held_locks(task); --=20 2.18.4