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From: Ankur Arora <ankur.a.arora@oracle.com>
To: linux-kernel@vger.kernel.org
Cc: peterz@infradead.org, tglx@linutronix.de, paulmck@kernel.org,
	mingo@kernel.org, bigeasy@linutronix.de, juri.lelli@redhat.com,
	vincent.guittot@linaro.org, dietmar.eggemann@arm.com,
	rostedt@goodmis.org, bsegall@google.com, mgorman@suse.de,
	vschneid@redhat.com, frederic@kernel.org,
	ankur.a.arora@oracle.com, efault@gmx.de, sshegde@linux.ibm.com,
	boris.ostrovsky@oracle.com
Subject: [PATCH v3 1/7] rcu: fix header guard for rcu_all_qs()
Date: Thu, 12 Dec 2024 20:06:52 -0800	[thread overview]
Message-ID: <20241213040658.2282640-2-ankur.a.arora@oracle.com> (raw)
In-Reply-To: <20241213040658.2282640-1-ankur.a.arora@oracle.com>

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@kernel.org>
Reviewed-by: Frederic Weisbecker <frederic@kernel.org>
Reviewed-by: Sebastian Andrzej Siewior <bigeasy@linutronix.de>
Signed-off-by: Ankur Arora <ankur.a.arora@oracle.com>
---
 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 27d86d912781..aad586f15ed0 100644
--- a/include/linux/rcutree.h
+++ b/include/linux/rcutree.h
@@ -103,7 +103,7 @@ 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
 
-- 
2.43.5


  reply	other threads:[~2024-12-13  4:07 UTC|newest]

Thread overview: 15+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2024-12-13  4:06 [PATCH v3 0/7] RCU changes for PREEMPT_LAZY Ankur Arora
2024-12-13  4:06 ` Ankur Arora [this message]
2024-12-13  4:06 ` [PATCH v3 2/7] rcu: rename PREEMPT_AUTO to PREEMPT_LAZY Ankur Arora
2024-12-13  4:06 ` [PATCH v3 3/7] sched: update __cond_resched comment about RCU quiescent states Ankur Arora
2024-12-13 13:21   ` Frederic Weisbecker
2024-12-13  4:06 ` [PATCH v3 4/7] rcu: handle unstable rdp in rcu_read_unlock_strict() Ankur Arora
2024-12-13 13:38   ` Frederic Weisbecker
2024-12-13  4:06 ` [PATCH v3 5/7] rcu: handle quiescent states for PREEMPT_RCU=n, PREEMPT_COUNT=y Ankur Arora
2024-12-13 13:59   ` Frederic Weisbecker
2024-12-13 20:44     ` Ankur Arora
2024-12-13  4:06 ` [PATCH v3 6/7] osnoise: provide quiescent states Ankur Arora
2024-12-13 14:34   ` Frederic Weisbecker
2024-12-13  4:06 ` [PATCH v3 7/7] rcu: limit PREEMPT_RCU configurations Ankur Arora
2025-01-08  1:14 ` [PATCH v3 0/7] RCU changes for PREEMPT_LAZY Paul E. McKenney
2025-01-08 18:18   ` Ankur Arora

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