diff options
| author | Ingo Molnar <mingo@kernel.org> | 2025-05-28 10:09:01 +0200 |
|---|---|---|
| committer | Ingo Molnar <mingo@kernel.org> | 2025-06-13 08:47:18 +0200 |
| commit | cac5cefbade90ff0bb0b393d301fa3b5234cf056 (patch) | |
| tree | 15b5ff17d1801012f6c53498c6320cee6ef086f4 /kernel/sched/debug.c | |
| parent | 5202c25dd17c54cd4c21f266d9a51b644d7cd682 (diff) | |
sched/smp: Make SMP unconditional
Simplify the scheduler by making CONFIG_SMP=y primitives and data
structures unconditional.
Introduce transitory wrappers for functionality not yet converted to SMP.
Note that this patch is pretty large, because there's no clear separation
between various aspects of the SMP scheduler, it's basically a huge block
of #ifdef CONFIG_SMP. A fair amount of it has to be switched on for it to
boot and work on UP systems.
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/20250528080924.2273858-21-mingo@kernel.org
Diffstat (limited to 'kernel/sched/debug.c')
| -rw-r--r-- | kernel/sched/debug.c | 12 |
1 files changed, 0 insertions, 12 deletions
diff --git a/kernel/sched/debug.c b/kernel/sched/debug.c index 748709c03214..04c0354f05e4 100644 --- a/kernel/sched/debug.c +++ b/kernel/sched/debug.c @@ -286,7 +286,6 @@ static const struct file_operations sched_dynamic_fops = { __read_mostly bool sched_debug_verbose; -#ifdef CONFIG_SMP static struct dentry *sd_dentry; @@ -314,9 +313,6 @@ static ssize_t sched_verbose_write(struct file *filp, const char __user *ubuf, return result; } -#else /* !CONFIG_SMP: */ -# define sched_verbose_write debugfs_write_file_bool -#endif /* !CONFIG_SMP */ static const struct file_operations sched_verbose_fops = { .read = debugfs_read_file_bool, @@ -543,8 +539,6 @@ static __init int sched_init_debug(void) } late_initcall(sched_init_debug); -#ifdef CONFIG_SMP - static cpumask_var_t sd_sysctl_cpus; static int sd_flags_show(struct seq_file *m, void *v) @@ -655,8 +649,6 @@ void dirty_sched_domain_sysctl(int cpu) __cpumask_set_cpu(cpu, sd_sysctl_cpus); } -#endif /* CONFIG_SMP */ - #ifdef CONFIG_FAIR_GROUP_SCHED static void print_cfs_group_stats(struct seq_file *m, int cpu, struct task_group *tg) { @@ -932,11 +924,7 @@ void print_dl_rq(struct seq_file *m, int cpu, struct dl_rq *dl_rq) SEQ_printf(m, " .%-30s: %lu\n", #x, (unsigned long)(dl_rq->x)) PU(dl_nr_running); -#ifdef CONFIG_SMP dl_bw = &cpu_rq(cpu)->rd->dl_bw; -#else - dl_bw = &dl_rq->dl_bw; -#endif SEQ_printf(m, " .%-30s: %lld\n", "dl_bw->bw", dl_bw->bw); SEQ_printf(m, " .%-30s: %lld\n", "dl_bw->total_bw", dl_bw->total_bw); |