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Message-Id: <20250505230624.2692522-192-sashal@kernel.org>
Date: Mon, 5 May 2025 19:06:04 -0400
From: Sasha Levin <sashal@...nel.org>
To: linux-kernel@...r.kernel.org,
stable@...r.kernel.org
Cc: Ankur Arora <ankur.a.arora@...cle.com>,
"Paul E . McKenney" <paulmck@...nel.org>,
Frederic Weisbecker <frederic@...nel.org>,
Sebastian Andrzej Siewior <bigeasy@...utronix.de>,
Boqun Feng <boqun.feng@...il.com>,
Sasha Levin <sashal@...nel.org>,
neeraj.upadhyay@...nel.org,
joel@...lfernandes.org,
josh@...htriplett.org,
urezki@...il.com,
rcu@...r.kernel.org
Subject: [PATCH AUTOSEL 6.1 192/212] rcu: fix header guard for rcu_all_qs()
From: Ankur Arora <ankur.a.arora@...cle.com>
[ Upstream commit ad6b5b73ff565e88aca7a7d1286788d80c97ba71 ]
rcu_all_qs() is defined for !CONFIG_PREEMPT_RCU but the declaration
is conditioned on CONFIG_PREEMPTION.
With CONFIG_PREEMPT_LAZY, CONFIG_PREEMPTION=y does not imply
CONFIG_PREEMPT_RCU=y.
Decouple the two.
Cc: Paul E. McKenney <paulmck@...nel.org>
Reviewed-by: Frederic Weisbecker <frederic@...nel.org>
Reviewed-by: Sebastian Andrzej Siewior <bigeasy@...utronix.de>
Signed-off-by: Ankur Arora <ankur.a.arora@...cle.com>
Signed-off-by: Paul E. McKenney <paulmck@...nel.org>
Signed-off-by: Boqun Feng <boqun.feng@...il.com>
Signed-off-by: Sasha Levin <sashal@...nel.org>
---
include/linux/rcutree.h | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/include/linux/rcutree.h b/include/linux/rcutree.h
index 5efb51486e8af..54483d5e6f918 100644
--- a/include/linux/rcutree.h
+++ b/include/linux/rcutree.h
@@ -105,7 +105,7 @@ extern int rcu_scheduler_active;
void rcu_end_inkernel_boot(void);
bool rcu_inkernel_boot_has_ended(void);
bool rcu_is_watching(void);
-#ifndef CONFIG_PREEMPTION
+#ifndef CONFIG_PREEMPT_RCU
void rcu_all_qs(void);
#endif
--
2.39.5
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