From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from smtp.kernel.org (aws-us-west-2-korg-mail-alma10-1.taild15c8.ts.net [100.103.45.18]) (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 07D0A2D9EED; Fri, 31 Jul 2026 01:07:23 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=100.103.45.18 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1785460045; cv=none; b=pisbW2uUYnlSTqYUdhxjGHjowJ0QQUdyCDjwz10I6JJEcYveoFV9D04fJJ6kF0cKM08lCrfE0ORCmCbXxL/PNFYr1NSySXuIrV8gZc6KlFzutc1HL7mnqIlWkgiMfU08ns1j6dzckhsOIqItjoSu/ApUus7GPoUXXdNdvRhPKpI= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1785460045; c=relaxed/simple; bh=OOSdQVrYwmh+RTss2fts75ttboe3Qa8Pwyl4rm5cL2A=; h=From:To:Cc:Subject:Date:Message-Id:In-Reply-To:References: MIME-Version; b=guIPBmqmK+h5842+S/ZOwqsMI4Z3sLEKDupvQxK/MndcvRTxWzJ9hnhxI60Qftzf3BVRhZc/GRoEPcaGPSQWhQ5ADTUwwA8E+K/18VMQceugApEhUXnuv39S0aEOI77yD/z6BxomjwXL9Zc2qaijdwv9dF2tfdqD5ubPrtd7s3s= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=kernel.org header.i=@kernel.org header.b=W4oIRKoU; arc=none smtp.client-ip=100.103.45.18 Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=kernel.org header.i=@kernel.org header.b="W4oIRKoU" Received: by smtp.kernel.org (Postfix) with ESMTPSA id 0A7D51F00ADB; Fri, 31 Jul 2026 01:07:21 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=kernel.org; s=k20260515; t=1785460041; bh=naLwP4ocZHefeFlWoSOcGsJA9i8DDPgQKHV4njTu0s0=; h=From:To:Cc:Subject:Date:In-Reply-To:References; b=W4oIRKoUYb/AFRBO9EqnaIdpCdmAFxY+u6ZX/valb9ib/SD4Vuwpx2vLYAxybQK4B ARNrqS5kq1YlPp8CjxPQzpvkPA9/YcaVKTULxjDyM0bH/41KzmOl24q/TRD8zUB0Vj +cqDkKuQFPjgrdVWE9xUcI6KGWan4t5j23E5A6Nodwyg75NYpVImcofw3RP8bJd3LZ 4Qp9BUuFwNonO0he7H1ROHub6HIhvAnYquXKXNjyfvNktu6xzeevZq3yhTU76SlJAI nP4Y1+ILzSF5mRXT5iQXOIoV/9NdCLwPjSmtS9pmoF8uYALaPYQ7Xz7Un9c5GHtLON R72tQddIYAjYQ== Received: by paulmck-ThinkPad-P17-Gen-1.home (Postfix, from userid 1000) id 9734DCE14D9; Thu, 30 Jul 2026 18:07:20 -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" Subject: [PATCH v2 09/13] rcutorture: Make RCU Tasks Trace track Reader Batches Date: Thu, 30 Jul 2026 18:07:15 -0700 Message-Id: <20260731010719.3531912-9-paulmck@kernel.org> X-Mailer: git-send-email 2.40.1 In-Reply-To: References: Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Transfer-Encoding: 8bit This commit adds the ->get_sp_seq and ->gp_diff fields to the tasks_tracing_ops structure so that RCU Tasks Trace rcutorture runs will track Reader Batch. Signed-off-by: Paul E. McKenney --- include/linux/rcupdate_trace.h | 3 +++ kernel/rcu/rcutorture.c | 3 ++- kernel/rcu/tasks.h | 6 ++++++ 3 files changed, 11 insertions(+), 1 deletion(-) diff --git a/include/linux/rcupdate_trace.h b/include/linux/rcupdate_trace.h index cee89e51e45cbb..f2c4173bf14fde 100644 --- a/include/linux/rcupdate_trace.h +++ b/include/linux/rcupdate_trace.h @@ -198,10 +198,13 @@ static inline void rcu_tasks_trace_expedite_current(void) srcu_expedite_current(&rcu_tasks_trace_srcu_struct); } +unsigned long rcu_tasks_trace_batches_completed(void); + // Placeholders to enable stepwise transition. void __init rcu_tasks_trace_suppress_unused(void); #else +static inline unsigned long rcu_tasks_trace_batches_completed(void) { return 0; } /* * The BPF JIT forms these addresses even when it doesn't call these * functions, so provide definitions that result in runtime errors. diff --git a/kernel/rcu/rcutorture.c b/kernel/rcu/rcutorture.c index c8118c38812aee..8514fef3ec10b6 100644 --- a/kernel/rcu/rcutorture.c +++ b/kernel/rcu/rcutorture.c @@ -1252,7 +1252,8 @@ static struct rcu_torture_ops tasks_tracing_ops = { .read_delay = srcu_read_delay, /* just reuse srcu's version. */ .readunlock = tasks_tracing_torture_read_unlock, .readlock_held = rcu_read_lock_trace_held, - .get_gp_seq = rcu_no_completed, + .get_gp_seq = rcu_tasks_trace_batches_completed, + .gp_diff = rcu_seq_diff, .deferred_free = rcu_tasks_tracing_torture_deferred_free, .sync = synchronize_rcu_tasks_trace, .exp_sync = synchronize_rcu_tasks_trace, diff --git a/kernel/rcu/tasks.h b/kernel/rcu/tasks.h index f4da5fad70f516..496acac8796fa7 100644 --- a/kernel/rcu/tasks.h +++ b/kernel/rcu/tasks.h @@ -1606,4 +1606,10 @@ static inline void rcu_tasks_bootup_oddness(void) {} DEFINE_SRCU_FAST(rcu_tasks_trace_srcu_struct); EXPORT_SYMBOL_GPL(rcu_tasks_trace_srcu_struct); +unsigned long rcu_tasks_trace_batches_completed(void) +{ + return srcu_batches_completed(&rcu_tasks_trace_srcu_struct); +} +EXPORT_SYMBOL_GPL(rcu_tasks_trace_batches_completed); + #endif /* #else #ifdef CONFIG_TASKS_TRACE_RCU */ -- 2.40.1