From nobody Wed Feb 11 13:10:13 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 2DC2AC76188 for ; Mon, 3 Apr 2023 21:22:58 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S233399AbjDCVW4 (ORCPT ); Mon, 3 Apr 2023 17:22:56 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:39368 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S232656AbjDCVWq (ORCPT ); Mon, 3 Apr 2023 17:22:46 -0400 Received: from dfw.source.kernel.org (dfw.source.kernel.org [IPv6:2604:1380:4641:c500::1]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id C4DCC3C00; Mon, 3 Apr 2023 14:22:44 -0700 (PDT) Received: from smtp.kernel.org (relay.kernel.org [52.25.139.140]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by dfw.source.kernel.org (Postfix) with ESMTPS id 5CA5A62C18; Mon, 3 Apr 2023 21:22:44 +0000 (UTC) Received: by smtp.kernel.org (Postfix) with ESMTPSA id C2C74C433A8; Mon, 3 Apr 2023 21:22:43 +0000 (UTC) Received: from rostedt by gandalf with local (Exim 4.96) (envelope-from ) id 1pjRdS-000FQU-2R; Mon, 03 Apr 2023 17:22:42 -0400 Message-ID: <20230403212242.571580896@goodmis.org> User-Agent: quilt/0.66 Date: Mon, 03 Apr 2023 17:21:29 -0400 From: Steven Rostedt To: linux-kernel@vger.kernel.org Cc: Masami Hiramatsu , Mark Rutland , Andrew Morton , stable@vger.kernel.org, Daniel Bristot de Oliveira Subject: [for-linus][PATCH 4/6] tracing/timerlat: Notify new max thread latency References: <20230403212125.244064799@goodmis.org> MIME-Version: 1.0 Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Content-Transfer-Encoding: quoted-printable Content-Type: text/plain; charset="utf-8" From: Daniel Bristot de Oliveira timerlat is not reporting a new tracing_max_latency for the thread latency. The reason is that it is not calling notify_new_max_latency() function after the new thread latency is sampled. Call notify_new_max_latency() after computing the thread latency. Link: https://lkml.kernel.org/r/16e18d61d69073d0192ace07bf61e405cca96e9c.16= 80104184.git.bristot@kernel.org Cc: stable@vger.kernel.org Fixes: dae181349f1e ("tracing/osnoise: Support a list of trace_array *tr") Signed-off-by: Daniel Bristot de Oliveira Signed-off-by: Steven Rostedt (Google) --- kernel/trace/trace_osnoise.c | 2 ++ 1 file changed, 2 insertions(+) diff --git a/kernel/trace/trace_osnoise.c b/kernel/trace/trace_osnoise.c index 9176bb7a9bb4..e8116094bed8 100644 --- a/kernel/trace/trace_osnoise.c +++ b/kernel/trace/trace_osnoise.c @@ -1738,6 +1738,8 @@ static int timerlat_main(void *data) =20 trace_timerlat_sample(&s); =20 + notify_new_max_latency(diff); + timerlat_dump_stack(time_to_us(diff)); =20 tlat->tracing_thread =3D false; --=20 2.39.2