diff options
| author | Ingo Molnar <mingo@kernel.org> | 2025-05-28 11:09:01 +0300 |
|---|---|---|
| committer | Ingo Molnar <mingo@kernel.org> | 2025-06-13 09:47:18 +0300 |
| commit | cac5cefbade90ff0bb0b393d301fa3b5234cf056 (patch) | |
| tree | 15b5ff17d1801012f6c53498c6320cee6ef086f4 /include/linux/preempt.h | |
| parent | 5202c25dd17c54cd4c21f266d9a51b644d7cd682 (diff) | |
| download | linux-cac5cefbade90ff0bb0b393d301fa3b5234cf056.tar.xz | |
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 'include/linux/preempt.h')
| -rw-r--r-- | include/linux/preempt.h | 9 |
1 files changed, 0 insertions, 9 deletions
diff --git a/include/linux/preempt.h b/include/linux/preempt.h index b0af8d4ef6e6..1fad1c8a4c76 100644 --- a/include/linux/preempt.h +++ b/include/linux/preempt.h @@ -369,8 +369,6 @@ static inline void preempt_notifier_init(struct preempt_notifier *notifier, #endif -#ifdef CONFIG_SMP - /* * Migrate-Disable and why it is undesired. * @@ -429,13 +427,6 @@ static inline void preempt_notifier_init(struct preempt_notifier *notifier, extern void migrate_disable(void); extern void migrate_enable(void); -#else - -static inline void migrate_disable(void) { } -static inline void migrate_enable(void) { } - -#endif /* CONFIG_SMP */ - /** * preempt_disable_nested - Disable preemption inside a normally preempt disabled section * |