linux-kernel - [RFC PATCH v3 03/15] sched/clock: Make sched_clock_running __ro_after

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Message-ID: <20241119153502.41361-4-vschneid@redhat.com>
Date: Tue, 19 Nov 2024 16:34:50 +0100
From: Valentin Schneider <vschneid@...hat.com>
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Subject: [RFC PATCH v3 03/15] sched/clock: Make sched_clock_running __ro_after_init

sched_clock_running is only ever enabled in the __init functions
sched_clock_init() and sched_clock_init_late(), and is never disabled. Mark
it __ro_after_init.

Signed-off-by: Valentin Schneider <vschneid@...hat.com>
---
 kernel/sched/clock.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/kernel/sched/clock.c b/kernel/sched/clock.c
index a09655b481402..200e5568b9894 100644
--- a/kernel/sched/clock.c
+++ b/kernel/sched/clock.c
@@ -66,7 +66,7 @@ notrace unsigned long long __weak sched_clock(void)
 }
 EXPORT_SYMBOL_GPL(sched_clock);
 
-static DEFINE_STATIC_KEY_FALSE(sched_clock_running);
+static DEFINE_STATIC_KEY_FALSE_RO(sched_clock_running);
 
 #ifdef CONFIG_HAVE_UNSTABLE_SCHED_CLOCK
 /*
-- 
2.43.0