From nobody Thu Oct 2 03:28:39 2025 Received: from smtp.kernel.org (aws-us-west-2-korg-mail-1.web.codeaurora.org [10.30.226.201]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id 492BB328563; Tue, 23 Sep 2025 14:21:55 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=10.30.226.201 ARC-Seal: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1758637315; cv=none; b=mIlwIfzMj6956eXG1XA1ov9jNCv70+ezbXGVMP8jQ2CVbt2H/DGigrUqOA0IoksbL+ev7yE1ZR+EfqrU1Rd//zkTpqjLQH/4LFqaAOvsuDSV3eh0/nbZX/xrDAjLUmaJ8t2Z5glhG9o6xWipHn+lir+CNxFfFt6Vgl9pHbayq7M= ARC-Message-Signature: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1758637315; c=relaxed/simple; bh=zPxFwXtYgPLDmkgZ+C7PtVRQ3LVvyGVKpWPncscteiI=; h=From:To:Cc:Subject:Date:Message-Id:In-Reply-To:References: MIME-Version; b=OF8WpTptipjvjYRRB9QldIhTFxEbfTzLOrL8462IIlhUdObV5vX8Wnu3P16sEebupmwBHn1LC+qsJXh2zQ4bGxt7dOBA7JcvlWrAt4/KxKvvaDxZoeTZcZui+l5LioBvJYgT3oWnh1Xu+4tiCP4QnbvKmeV0c/pEZEXN+mfksec= ARC-Authentication-Results: i=1; smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=kernel.org header.i=@kernel.org header.b=CFgL6W0X; arc=none smtp.client-ip=10.30.226.201 Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=kernel.org header.i=@kernel.org header.b="CFgL6W0X" Received: by smtp.kernel.org (Postfix) with ESMTPSA id 77AA0C19423; Tue, 23 Sep 2025 14:21:53 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=k20201202; t=1758637314; bh=zPxFwXtYgPLDmkgZ+C7PtVRQ3LVvyGVKpWPncscteiI=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=CFgL6W0X9TD7itXUCA79zfHAMgsDv/F5ZjscgtnZe2i+axXkbeDke8n6lkPlH2Rvb J0dOPDolpyRr9ODVcAPyii5ZUSIc3NecjkdxrjpKoGK9PxkUjTga/rNCyKfXNDccwt euFWwYsRXqJ1RrE0ktNztksZjKsMjQgKCnRdz5HOUc+u6iu7XRQJ/CClDr2nwFoNNJ OBC7zbx4oJ/pADdOHTZd7sdREWWx+Zm3SKQF01WdNLmvvLAcffNc2cZt5aKK8UFirW nFf89dNlRCTzjudGzHVB+l1kHVwWL/q/qI8++OL4Je1wo8Kg+LcSyI/a0LJqvnZrjA THcqpEPX/A9aw== Received: by paulmck-ThinkPad-P17-Gen-1.home (Postfix, from userid 1000) id CF24CCE1385; Tue, 23 Sep 2025 07:20:37 -0700 (PDT) From: "Paul E. McKenney" To: rcu@vger.kernel.org Cc: linux-kernel@vger.kernel.org, kernel-team@meta.com, rostedt@goodmis.org, "Paul E. McKenney" , Andrii Nakryiko , Alexei Starovoitov , Peter Zijlstra , bpf@vger.kernel.org Subject: [PATCH 10/34] rcu: Remove now-empty show_rcu_tasks_trace_gp_kthread() function Date: Tue, 23 Sep 2025 07:20:12 -0700 Message-Id: <20250923142036.112290-10-paulmck@kernel.org> X-Mailer: git-send-email 2.40.1 In-Reply-To: <580ea2de-799a-4ddc-bde9-c16f3fb1e6e7@paulmck-laptop> References: <580ea2de-799a-4ddc-bde9-c16f3fb1e6e7@paulmck-laptop> Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Transfer-Encoding: quoted-printable Content-Type: text/plain; charset="utf-8" The show_rcu_tasks_trace_gp_kthread() is used by rcutorture to diagnose bugs involving the RCU Tasks Trace grace-period kthread, which now no longer exists. This commit therefore removes this function. Signed-off-by: Paul E. McKenney Cc: Andrii Nakryiko Cc: Alexei Starovoitov Cc: Peter Zijlstra Cc: --- kernel/rcu/rcu.h | 5 ----- kernel/rcu/rcutorture.c | 1 - kernel/rcu/tasks.h | 6 ------ 3 files changed, 12 deletions(-) diff --git a/kernel/rcu/rcu.h b/kernel/rcu/rcu.h index 9cf01832a6c3d1..b397572b4a5331 100644 --- a/kernel/rcu/rcu.h +++ b/kernel/rcu/rcu.h @@ -673,11 +673,6 @@ void show_rcu_tasks_rude_gp_kthread(void); #else static inline void show_rcu_tasks_rude_gp_kthread(void) {} #endif -#if !defined(CONFIG_TINY_RCU) && defined(CONFIG_TASKS_TRACE_RCU) -void show_rcu_tasks_trace_gp_kthread(void); -#else -static inline void show_rcu_tasks_trace_gp_kthread(void) {} -#endif =20 #ifdef CONFIG_TINY_RCU static inline bool rcu_cpu_beenfullyonline(int cpu) { return true; } diff --git a/kernel/rcu/rcutorture.c b/kernel/rcu/rcutorture.c index 72619e5e8549dc..5120e1ce811413 100644 --- a/kernel/rcu/rcutorture.c +++ b/kernel/rcu/rcutorture.c @@ -1130,7 +1130,6 @@ static struct rcu_torture_ops tasks_tracing_ops =3D { .exp_sync =3D synchronize_rcu_tasks_trace, .call =3D call_rcu_tasks_trace, .cb_barrier =3D rcu_barrier_tasks_trace, - .gp_kthread_dbg =3D show_rcu_tasks_trace_gp_kthread, .get_gp_data =3D rcu_tasks_trace_get_gp_data, .cbflood_max =3D 50000, .irq_capable =3D 1, diff --git a/kernel/rcu/tasks.h b/kernel/rcu/tasks.h index 50f5c483e0e15a..6e2530fe23e620 100644 --- a/kernel/rcu/tasks.h +++ b/kernel/rcu/tasks.h @@ -1468,11 +1468,6 @@ void __init rcu_tasks_trace_suppress_unused(void) } =20 #if !defined(CONFIG_TINY_RCU) -void show_rcu_tasks_trace_gp_kthread(void) -{ -} -EXPORT_SYMBOL_GPL(show_rcu_tasks_trace_gp_kthread); - void rcu_tasks_trace_torture_stats_print(char *tt, char *tf) { } @@ -1497,7 +1492,6 @@ void show_rcu_tasks_gp_kthreads(void) { show_rcu_tasks_classic_gp_kthread(); show_rcu_tasks_rude_gp_kthread(); - show_rcu_tasks_trace_gp_kthread(); } #endif /* #ifndef CONFIG_TINY_RCU */ =20 --=20 2.40.1