From 1f25730e5a780b33f78e3ea23e64d3f75e0b2042 Mon Sep 17 00:00:00 2001 From: Ingo Molnar Date: Wed, 28 May 2025 10:09:07 +0200 Subject: [PATCH] sched/smp: Use the SMP version of sched_exec() Simplify the scheduler making CONFIG_SMP=y sched_exec() code unconditional. Signed-off-by: Ingo Molnar Acked-by: Peter Zijlstra Cc: Dietmar Eggemann Cc: Juri Lelli Cc: Linus Torvalds Cc: Mel Gorman Cc: Sebastian Andrzej Siewior Cc: Shrikanth Hegde Cc: Steven Rostedt Cc: Valentin Schneider Cc: Vincent Guittot Link: https://lore.kernel.org/r/20250528080924.2273858-27-mingo@kernel.org --- include/linux/sched/task.h | 4 ---- kernel/sched/core.c | 4 ---- 2 files changed, 8 deletions(-) diff --git a/include/linux/sched/task.h b/include/linux/sched/task.h index ca1db4b92c324..c517dbc242f7c 100644 --- a/include/linux/sched/task.h +++ b/include/linux/sched/task.h @@ -109,11 +109,7 @@ int kernel_wait(pid_t pid, int *stat); extern void free_task(struct task_struct *tsk); /* sched_exec is called by processes performing an exec */ -#ifdef CONFIG_SMP extern void sched_exec(void); -#else -#define sched_exec() {} -#endif static inline struct task_struct *get_task_struct(struct task_struct *t) { diff --git a/kernel/sched/core.c b/kernel/sched/core.c index c108b5c2e1151..fa89006e05e97 100644 --- a/kernel/sched/core.c +++ b/kernel/sched/core.c @@ -5419,8 +5419,6 @@ unsigned int nr_iowait(void) return sum; } -#ifdef CONFIG_SMP - /* * sched_exec - execve() is a valuable balancing opportunity, because at * this point the task has the smallest effective memory and cache footprint. @@ -5444,8 +5442,6 @@ void sched_exec(void) stop_one_cpu(task_cpu(p), migration_cpu_stop, &arg); } -#endif /* CONFIG_SMP */ - DEFINE_PER_CPU(struct kernel_stat, kstat); DEFINE_PER_CPU(struct kernel_cpustat, kernel_cpustat); -- 2.47.2