linux-kernel - [tip: sched/core] sched/smp: Use the SMP version of WF_ and SD

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Message-ID: <174980022743.406.5417633156555260582.tip-bot2@tip-bot2>
Date: Fri, 13 Jun 2025 07:37:07 -0000
From: "tip-bot2 for Ingo Molnar" <tip-bot2@...utronix.de>
To: linux-tip-commits@...r.kernel.org
Cc: Ingo Molnar <mingo@...nel.org>, Peter Zijlstra <peterz@...radead.org>,
 Dietmar Eggemann <dietmar.eggemann@....com>,
 Juri Lelli <juri.lelli@...hat.com>,
 Linus Torvalds <torvalds@...ux-foundation.org>, Mel Gorman <mgorman@...e.de>,
 Sebastian Andrzej Siewior <bigeasy@...utronix.de>,
 Shrikanth Hegde <sshegde@...ux.ibm.com>, Steven Rostedt <rostedt@...dmis.org>,
 Valentin Schneider <vschneid@...hat.com>,
 Vincent Guittot <vincent.guittot@...aro.org>, x86@...nel.org,
 linux-kernel@...r.kernel.org
Subject: [tip: sched/core] sched/smp: Use the SMP version of WF_ and SD_ flag
 sanity checks

The following commit has been merged into the sched/core branch of tip:

Commit-ID:     0203244600b2f48c7074a9d439789d8d1152d3e1
Gitweb:        https://git.kernel.org/tip/0203244600b2f48c7074a9d439789d8d1152d3e1
Author:        Ingo Molnar <mingo@...nel.org>
AuthorDate:    Wed, 28 May 2025 10:09:21 +02:00
Committer:     Ingo Molnar <mingo@...nel.org>
CommitterDate: Fri, 13 Jun 2025 08:47:23 +02:00

sched/smp: Use the SMP version of WF_ and SD_ flag sanity checks

Simplify the scheduler by making CONFIG_SMP=y asserts related
to WF_ and SD_ flags unconditional.

Signed-off-by: Ingo Molnar <mingo@...nel.org>
Acked-by: Peter Zijlstra <peterz@...radead.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: Sebastian Andrzej Siewior <bigeasy@...utronix.de>
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>
Link: https://lore.kernel.org/r/20250528080924.2273858-41-mingo@kernel.org
---
 kernel/sched/sched.h | 2 --
 1 file changed, 2 deletions(-)

diff --git a/kernel/sched/sched.h b/kernel/sched/sched.h
index 7490473..d8c78ee 100644
--- a/kernel/sched/sched.h
+++ b/kernel/sched/sched.h
@@ -2261,11 +2261,9 @@ static inline int task_on_rq_migrating(struct task_struct *p)
 #define WF_CURRENT_CPU		0x40 /* Prefer to move the wakee to the current CPU. */
 #define WF_RQ_SELECTED		0x80 /* ->select_task_rq() was called */
 
-#ifdef CONFIG_SMP
 static_assert(WF_EXEC == SD_BALANCE_EXEC);
 static_assert(WF_FORK == SD_BALANCE_FORK);
 static_assert(WF_TTWU == SD_BALANCE_WAKE);
-#endif
 
 /*
  * To aid in avoiding the subversion of "niceness" due to uneven distribution