linux-kernel - [PATCH 43/43] sched/smp: Use the SMP version of double_rq_clock_clear

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Message-ID: <20250528080924.2273858-44-mingo@kernel.org>
Date: Wed, 28 May 2025 10:09:24 +0200
From: Ingo Molnar <mingo@...nel.org>
To: linux-kernel@...r.kernel.org
Cc: Dietmar Eggemann <dietmar.eggemann@....com>,
	Linus Torvalds <torvalds@...ux-foundation.org>,
	Peter Zijlstra <peterz@...radead.org>,
	Shrikanth Hegde <sshegde@...ux.ibm.com>,
	Thomas Gleixner <tglx@...utronix.de>,
	Valentin Schneider <vschneid@...hat.com>,
	Steven Rostedt <rostedt@...dmis.org>,
	Mel Gorman <mgorman@...e.de>,
	Vincent Guittot <vincent.guittot@...aro.org>,
	Sebastian Andrzej Siewior <bigeasy@...utronix.de>,
	Ingo Molnar <mingo@...nel.org>,
	Juri Lelli <juri.lelli@...hat.com>
Subject: [PATCH 43/43] sched/smp: Use the SMP version of double_rq_clock_clear_update()

Simplify the scheduler by making formerly SMP-only primitives and data
structures unconditional.

Signed-off-by: Ingo Molnar <mingo@...nel.org>
Cc: Dietmar Eggemann <dietmar.eggemann@....com>
Cc: Juri Lelli <juri.lelli@...hat.com>
Cc: Linus Torvalds <torvalds@...ux-foundation.org>
Cc: Mel Gorman <mgorman@...e.de>
Cc: Peter Zijlstra <peterz@...radead.org>
Cc: Shrikanth Hegde <sshegde@...ux.ibm.com>
Cc: Steven Rostedt <rostedt@...dmis.org>
Cc: Valentin Schneider <vschneid@...hat.com>
Cc: Vincent Guittot <vincent.guittot@...aro.org>
---
 kernel/sched/sched.h | 3 ---
 1 file changed, 3 deletions(-)

diff --git a/kernel/sched/sched.h b/kernel/sched/sched.h
index e6d637015d0c..dedf92fae94f 100644
--- a/kernel/sched/sched.h
+++ b/kernel/sched/sched.h
@@ -2839,10 +2839,7 @@ unsigned long arch_scale_freq_capacity(int cpu)
 static inline void double_rq_clock_clear_update(struct rq *rq1, struct rq *rq2)
 {
 	rq1->clock_update_flags &= (RQCF_REQ_SKIP|RQCF_ACT_SKIP);
-	/* rq1 == rq2 for !CONFIG_SMP, so just clear RQCF_UPDATED once. */
-#ifdef CONFIG_SMP
 	rq2->clock_update_flags &= (RQCF_REQ_SKIP|RQCF_ACT_SKIP);
-#endif
 }
 
 #define DEFINE_LOCK_GUARD_2(name, type, _lock, _unlock, ...)				\
-- 
2.45.2