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From: "Paul E. McKenney" <paulmck@kernel.org>
To: rcu@vger.kernel.org
Cc: linux-kernel@vger.kernel.org, kernel-team@meta.com,
	rostedt@goodmis.org, "Paul E. McKenney" <paulmck@kernel.org>,
	Mathieu Desnoyers <mathieu.desnoyers@efficios.com>,
	Sebastian Andrzej Siewior <bigeasy@linutronix.de>
Subject: [PATCH v2 3/4] srcu: Add guards for notrace variants of SRCU-fast readers
Date: Fri, 18 Jul 2025 17:28:16 -0700	[thread overview]
Message-ID: <20250719002817.4121867-3-paulmck@kernel.org> (raw)
In-Reply-To: <3cecf6c9-b2ee-4f34-9d1b-ca4cfb8e56a7@paulmck-laptop>

This adds the usual scoped_guard(srcu_fast_notrace, &my_srcu) and
guard(srcu_fast_notrace)(&my_srcu).

Signed-off-by: Paul E. McKenney <paulmck@kernel.org>
Cc: Mathieu Desnoyers <mathieu.desnoyers@efficios.com>
Cc: Steven Rostedt <rostedt@goodmis.org>
Cc: Sebastian Andrzej Siewior <bigeasy@linutronix.de>
---
 include/linux/srcu.h | 5 +++++
 1 file changed, 5 insertions(+)

diff --git a/include/linux/srcu.h b/include/linux/srcu.h
index 7a692bf8f99b9..ada65b58bc4c5 100644
--- a/include/linux/srcu.h
+++ b/include/linux/srcu.h
@@ -515,4 +515,9 @@ DEFINE_LOCK_GUARD_1(srcu_fast, struct srcu_struct,
 		    srcu_read_unlock_fast(_T->lock, _T->scp),
 		    struct srcu_ctr __percpu *scp)
 
+DEFINE_LOCK_GUARD_1(srcu_fast_notrace, struct srcu_struct,
+		    _T->scp = srcu_read_lock_fast_notrace(_T->lock),
+		    srcu_read_unlock_fast_notrace(_T->lock, _T->scp),
+		    struct srcu_ctr __percpu *scp)
+
 #endif
-- 
2.40.1


  parent reply	other threads:[~2025-07-19  0:28 UTC|newest]

Thread overview: 59+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2025-06-13 15:22 [RFC PATCH 0/2] Switch tracing from sched-RCU to preempt-RCU Sebastian Andrzej Siewior
2025-06-13 15:22 ` [RFC PATCH 1/2] rcu: Add rcu_read_lock_notrace() Sebastian Andrzej Siewior
2025-06-18 17:21   ` Boqun Feng
2025-06-20  8:43     ` Sebastian Andrzej Siewior
2025-06-20 11:23       ` Paul E. McKenney
2025-06-23 10:49         ` Sebastian Andrzej Siewior
2025-06-23 18:13           ` Paul E. McKenney
2025-07-07 21:56             ` Paul E. McKenney
2025-07-08 19:40               ` Mathieu Desnoyers
2025-07-08 20:49                 ` Paul E. McKenney
2025-07-09 14:31                   ` Mathieu Desnoyers
2025-07-09 18:33                     ` Paul E. McKenney
2025-07-11 13:46                       ` Mathieu Desnoyers
2025-07-11 17:05                         ` Paul E. McKenney
2025-07-14 16:34                           ` Paul E. McKenney
2025-07-15 19:56                             ` Mathieu Desnoyers
2025-07-15 23:23                               ` Paul E. McKenney
2025-07-15 19:54                           ` Mathieu Desnoyers
2025-07-15 23:18                             ` Paul E. McKenney
2025-07-16  0:42                               ` Paul E. McKenney
2025-07-16  4:41                                 ` Paul E. McKenney
2025-07-16 15:09                           ` Steven Rostedt
2025-07-16 20:35                             ` Paul E. McKenney
2025-07-16 22:54                               ` Paul E. McKenney
2025-07-16 22:54                                 ` [PATCH RFC 1/4] srcu: Move rcu_is_watching() checks to srcu_read_{,un}lock_fast() Paul E. McKenney
2025-07-16 22:54                                 ` [PATCH RFC 2/4] srcu: Add srcu_read_lock_fast_notrace() and srcu_read_unlock_fast_notrace() Paul E. McKenney
2025-07-16 22:54                                 ` [PATCH RFC 3/4] srcu: Add guards for notrace variants of SRCU-fast readers Paul E. McKenney
2025-07-16 22:54                                 ` [PATCH RFC 4/4] tracing: Guard __DECLARE_TRACE() use of __DO_TRACE_CALL() with SRCU-fast Paul E. McKenney
2025-07-17 13:14                                 ` [RFC PATCH 1/2] rcu: Add rcu_read_lock_notrace() Mathieu Desnoyers
2025-07-17 14:46                                   ` Mathieu Desnoyers
2025-07-17 15:18                                     ` Paul E. McKenney
2025-07-17 19:36                                       ` Mathieu Desnoyers
2025-07-17 21:27                                         ` Paul E. McKenney
2025-07-17 14:57                                   ` Alexei Starovoitov
2025-07-17 15:12                                     ` Steven Rostedt
2025-07-17 15:27                                       ` Alexei Starovoitov
2025-07-17 15:40                                         ` Steven Rostedt
2025-07-17 15:55                                           ` Steven Rostedt
2025-07-17 16:02                                             ` Alexei Starovoitov
2025-07-17 16:19                                               ` Steven Rostedt
2025-07-17 17:38                                               ` Mathieu Desnoyers
2025-07-17 16:04                                             ` Paul E. McKenney
2025-07-17 15:44                                         ` Paul E. McKenney
2025-07-17 15:30                                     ` Paul E. McKenney
2025-07-17 15:07                                   ` Paul E. McKenney
2025-07-17 19:04                                 ` [PATCH RFC 6/4] srcu: Add guards for SRCU-fast readers Paul E. McKenney
2025-07-17 19:19                                   ` Steven Rostedt
2025-07-17 19:51                                     ` Paul E. McKenney
2025-07-17 19:56                                       ` Steven Rostedt
2025-07-17 20:38                                         ` Paul E. McKenney
2025-07-19  0:28                                 ` [RFC PATCH 1/2] rcu: Add rcu_read_lock_notrace() Paul E. McKenney
2025-07-19  0:28                                   ` [PATCH v2 1/4] srcu: Move rcu_is_watching() checks to srcu_read_{,un}lock_fast() Paul E. McKenney
2025-07-21 14:53                                     ` Steven Rostedt
2025-07-21 16:25                                       ` Paul E. McKenney
2025-07-19  0:28                                   ` [PATCH v2 2/4] srcu: Add srcu_read_lock_fast_notrace() and srcu_read_unlock_fast_notrace() Paul E. McKenney
2025-07-19  0:28                                   ` Paul E. McKenney [this message]
2025-07-19  0:28                                   ` [PATCH v2 4/4] tracing: Guard __DECLARE_TRACE() use of __DO_TRACE_CALL() with SRCU-fast Paul E. McKenney
2025-06-13 15:22 ` [RFC PATCH 2/2] trace: Use rcu_read_lock() instead preempt_disable() Sebastian Andrzej Siewior
2025-06-13 15:38 ` [RFC PATCH 0/2] Switch tracing from sched-RCU to preempt-RCU Mathieu Desnoyers

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