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authorIngo Molnar <mingo@kernel.org>2025-05-28 10:09:07 +0200
committerIngo Molnar <mingo@kernel.org>2025-06-13 08:47:20 +0200
commit1f25730e5a780b33f78e3ea23e64d3f75e0b2042 (patch)
tree8becfff8d8813fe43aa37ce44624fedd8f25376f
parent588467616c88b12657f6ebe7306d830c272fe054 (diff)
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 <mingo@kernel.org> Acked-by: Peter Zijlstra <peterz@infradead.org> Cc: Dietmar Eggemann <dietmar.eggemann@arm.com> Cc: Juri Lelli <juri.lelli@redhat.com> Cc: Linus Torvalds <torvalds@linux-foundation.org> Cc: Mel Gorman <mgorman@suse.de> Cc: Sebastian Andrzej Siewior <bigeasy@linutronix.de> Cc: Shrikanth Hegde <sshegde@linux.ibm.com> Cc: Steven Rostedt <rostedt@goodmis.org> Cc: Valentin Schneider <vschneid@redhat.com> Cc: Vincent Guittot <vincent.guittot@linaro.org> Link: https://lore.kernel.org/r/20250528080924.2273858-27-mingo@kernel.org
-rw-r--r--include/linux/sched/task.h4
-rw-r--r--kernel/sched/core.c4
2 files changed, 0 insertions, 8 deletions
diff --git a/include/linux/sched/task.h b/include/linux/sched/task.h
index ca1db4b92c32..c517dbc242f7 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 c108b5c2e115..fa89006e05e9 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);