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 v3 3/4] srcu: Add guards for notrace variants of SRCU-fast readers
Date: Mon, 21 Jul 2025 09:24:32 -0700 [thread overview]
Message-ID: <20250721162433.10454-3-paulmck@kernel.org> (raw)
In-Reply-To: <7387f0c2-75bc-420d-aa7e-3a9ac72d369c@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
next prev parent reply other threads:[~2025-07-21 16:24 UTC|newest]
Thread overview: 18+ messages / expand[flat|nested] mbox.gz Atom feed top
2025-07-21 16:24 [PATCH v3 0/4] Switch __DECLARE_TRACE() to notrace variant of SRCU-fast Paul E. McKenney
2025-07-21 16:24 ` [PATCH v3 1/4] srcu: Move rcu_is_watching() checks to srcu_read_{,un}lock_fast() Paul E. McKenney
2025-07-22 22:04 ` Joel Fernandes
2025-07-21 16:24 ` [PATCH v3 2/4] srcu: Add srcu_read_lock_fast_notrace() and srcu_read_unlock_fast_notrace() Paul E. McKenney
2025-07-22 22:11 ` Joel Fernandes
2025-07-22 22:34 ` Paul E. McKenney
2025-07-22 22:47 ` Steven Rostedt
2025-07-22 22:51 ` Paul E. McKenney
2025-07-23 15:23 ` Mathieu Desnoyers
2025-07-23 16:28 ` Paul E. McKenney
2025-07-21 16:24 ` Paul E. McKenney [this message]
2025-07-22 22:16 ` [PATCH v3 3/4] srcu: Add guards for notrace variants of SRCU-fast readers Joel Fernandes
2025-07-21 16:24 ` [PATCH v3 4/4] tracing: Guard __DECLARE_TRACE() use of __DO_TRACE_CALL() with SRCU-fast Paul E. McKenney
2025-07-22 22:16 ` [PATCH v3 5/4] srcu: Document __srcu_read_{,un}lock_fast() implicit RCU readers Paul E. McKenney
2025-07-23 13:32 ` Joel Fernandes
2025-07-23 16:10 ` Joel Fernandes
2025-07-23 16:24 ` Paul E. McKenney
2025-07-22 22:17 ` [PATCH v3 6/4] srcu: Document srcu_flip() memory-barrier D relation to SRCU-fast Paul E. McKenney
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