From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-16.8 required=3.0 tests=BAYES_00,DKIM_SIGNED, DKIM_VALID,HEADER_FROM_DIFFERENT_DOMAINS,INCLUDES_CR_TRAILER,INCLUDES_PATCH, MAILING_LIST_MULTI,SPF_HELO_NONE,SPF_PASS,USER_AGENT_GIT autolearn=unavailable autolearn_force=no version=3.4.0 Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id CFD39C432BE for ; Wed, 25 Aug 2021 07:11:37 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id B49B5613AB for ; Wed, 25 Aug 2021 07:11:37 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S239206AbhHYHMW (ORCPT ); Wed, 25 Aug 2021 03:12:22 -0400 Received: from so254-9.mailgun.net ([198.61.254.9]:34032 "EHLO so254-9.mailgun.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S239052AbhHYHMM (ORCPT ); Wed, 25 Aug 2021 03:12:12 -0400 DKIM-Signature: a=rsa-sha256; v=1; c=relaxed/relaxed; d=mg.codeaurora.org; q=dns/txt; s=smtp; t=1629875487; h=References: In-Reply-To: Message-Id: Date: Subject: Cc: To: From: Sender; bh=NCqkmtmm5j+H1C/l7UvmVOpMSwLfWqn8gxg5rAKzY3A=; b=i58jnuC1+vMhFPQd9Z1RksbTMySkrtcAYk82Q8czBZbBSgS1ekkxh8jwtadRjIiyh4ZZ9qR/ B9iaths0uhG2sIUN1yocgRpUhm93wBslQVZ021rL8xAnAfn3teA6szQnFi3cQ+yOLHqhrMp8 W62GKolF2dTI5s0pnEww1sYi/Fk= X-Mailgun-Sending-Ip: 198.61.254.9 X-Mailgun-Sid: WyI0MWYwYSIsICJsaW51eC1rZXJuZWxAdmdlci5rZXJuZWwub3JnIiwgImJlOWU0YSJd Received: from smtp.codeaurora.org (ec2-35-166-182-171.us-west-2.compute.amazonaws.com [35.166.182.171]) by smtp-out-n04.prod.us-east-1.postgun.com with SMTP id 6125ed1fe0fcecca19efe627 (version=TLS1.2, cipher=TLS_ECDHE_RSA_WITH_AES_128_GCM_SHA256); Wed, 25 Aug 2021 07:11:27 GMT Sender: neeraju=codeaurora.org@mg.codeaurora.org Received: by smtp.codeaurora.org (Postfix, from userid 1001) id 98060C4361A; Wed, 25 Aug 2021 07:11:26 +0000 (UTC) Received: from localhost (unknown [202.46.22.19]) (using TLSv1.2 with cipher ECDHE-RSA-AES128-GCM-SHA256 (128/128 bits)) (No client certificate requested) (Authenticated sender: neeraju) by smtp.codeaurora.org (Postfix) with ESMTPSA id DF59EC4338F; Wed, 25 Aug 2021 07:11:24 +0000 (UTC) DMARC-Filter: OpenDMARC Filter v1.4.1 smtp.codeaurora.org DF59EC4338F Authentication-Results: aws-us-west-2-caf-mail-1.web.codeaurora.org; dmarc=none (p=none dis=none) header.from=codeaurora.org Authentication-Results: aws-us-west-2-caf-mail-1.web.codeaurora.org; spf=fail smtp.mailfrom=codeaurora.org From: Neeraj Upadhyay To: paulmck@kernel.org, josh@joshtriplett.org, rostedt@goodmis.org, mathieu.desnoyers@efficios.com, jiangshanlai@gmail.com, joel@joelfernandes.org Cc: rcu@vger.kernel.org, linux-kernel@vger.kernel.org, urezki@gmail.com, frederic@kernel.org, boqun.feng@gmail.com, Neeraj Upadhyay Subject: [PATCH v2 3/5] rcu-tasks: Correct check for no_hz_full cpu in show_stalled_task_trace Date: Wed, 25 Aug 2021 12:40:49 +0530 Message-Id: <1629875451-20628-4-git-send-email-neeraju@codeaurora.org> X-Mailer: git-send-email 2.7.4 In-Reply-To: <1629875451-20628-1-git-send-email-neeraju@codeaurora.org> References: <1629875451-20628-1-git-send-email-neeraju@codeaurora.org> Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Correct the check for no_hz_full cpu in show_stalled_task_trace(), to include cpu 0. Signed-off-by: Neeraj Upadhyay --- kernel/rcu/tasks.h | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/kernel/rcu/tasks.h b/kernel/rcu/tasks.h index 9db7293..244e06a 100644 --- a/kernel/rcu/tasks.h +++ b/kernel/rcu/tasks.h @@ -1091,7 +1091,7 @@ static void show_stalled_task_trace(struct task_struct *t, bool *firstreport) t->pid, ".I"[READ_ONCE(t->trc_ipi_to_cpu) > 0], ".i"[is_idle_task(t)], - ".N"[cpu > 0 && tick_nohz_full_cpu(cpu)], + ".N"[cpu >= 0 && tick_nohz_full_cpu(cpu)], READ_ONCE(t->trc_reader_nesting), " N"[!!READ_ONCE(t->trc_reader_special.b.need_qs)], cpu); -- QUALCOMM INDIA, on behalf of Qualcomm Innovation Center, Inc. is a member of the Code Aurora Forum, hosted by The Linux Foundation