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From: Neeraj Upadhyay <neeraju@codeaurora.org>
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 <neeraju@codeaurora.org>
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	[thread overview]
Message-ID: <1629875451-20628-4-git-send-email-neeraju@codeaurora.org> (raw)
In-Reply-To: <1629875451-20628-1-git-send-email-neeraju@codeaurora.org>

Correct the check for no_hz_full cpu in show_stalled_task_trace(),
to include cpu 0.

Signed-off-by: Neeraj Upadhyay <neeraju@codeaurora.org>
---
 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


  parent reply	other threads:[~2021-08-25  7:11 UTC|newest]

Thread overview: 7+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2021-08-25  7:10 [PATCH v2 0/5] rcu-tasks miscellaneous fixes Neeraj Upadhyay
2021-08-25  7:10 ` [PATCH v2 1/5] rcu-tasks: Fix s/rcu_add_holdout/trc_add_holdout/ typo in comment Neeraj Upadhyay
2021-08-25  7:10 ` [PATCH v2 2/5] rcu-tasks: Correct firstreport usage in check_all_holdout_tasks_trace Neeraj Upadhyay
2021-08-25  7:10 ` Neeraj Upadhyay [this message]
2021-08-25  7:10 ` [PATCH v2 4/5] rcu-tasks: Fix read-side primitives comment for call_rcu_tasks_trace Neeraj Upadhyay
2021-08-25 17:08   ` Paul E. McKenney
2021-08-25  7:10 ` [PATCH v2 5/5] rcu-tasks: Clarify read side section info for rcu_tasks_rude GP primitives Neeraj Upadhyay

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