diff options
Diffstat (limited to 'include')
-rw-r--r-- | include/linux/interrupt.h | 2 | ||||
-rw-r--r-- | include/linux/rcu_notifier.h | 32 | ||||
-rw-r--r-- | include/linux/rcupdate.h | 2 | ||||
-rw-r--r-- | include/linux/rcutiny.h | 2 | ||||
-rw-r--r-- | include/linux/rcutree.h | 17 | ||||
-rw-r--r-- | include/linux/slab.h | 5 | ||||
-rw-r--r-- | include/linux/torture.h | 8 |
7 files changed, 58 insertions, 10 deletions
diff --git a/include/linux/interrupt.h b/include/linux/interrupt.h index 4a1dc88ddbff..76121c2bb4f8 100644 --- a/include/linux/interrupt.h +++ b/include/linux/interrupt.h @@ -566,7 +566,7 @@ enum * * _ RCU: * 1) rcutree_migrate_callbacks() migrates the queue. - * 2) rcu_report_dead() reports the final quiescent states. + * 2) rcutree_report_cpu_dead() reports the final quiescent states. * * _ IRQ_POLL: irq_poll_cpu_dead() migrates the queue * diff --git a/include/linux/rcu_notifier.h b/include/linux/rcu_notifier.h new file mode 100644 index 000000000000..ebf371364581 --- /dev/null +++ b/include/linux/rcu_notifier.h @@ -0,0 +1,32 @@ +/* SPDX-License-Identifier: GPL-2.0+ */ +/* + * Read-Copy Update notifiers, initially RCU CPU stall notifier. + * Separate from rcupdate.h to avoid #include loops. + * + * Copyright (C) 2023 Paul E. McKenney. + */ + +#ifndef __LINUX_RCU_NOTIFIER_H +#define __LINUX_RCU_NOTIFIER_H + +// Actions for RCU CPU stall notifier calls. +#define RCU_STALL_NOTIFY_NORM 1 +#define RCU_STALL_NOTIFY_EXP 2 + +#ifdef CONFIG_RCU_STALL_COMMON + +#include <linux/notifier.h> +#include <linux/types.h> + +int rcu_stall_chain_notifier_register(struct notifier_block *n); +int rcu_stall_chain_notifier_unregister(struct notifier_block *n); + +#else // #ifdef CONFIG_RCU_STALL_COMMON + +// No RCU CPU stall warnings in Tiny RCU. +static inline int rcu_stall_chain_notifier_register(struct notifier_block *n) { return -EEXIST; } +static inline int rcu_stall_chain_notifier_unregister(struct notifier_block *n) { return -ENOENT; } + +#endif // #else // #ifdef CONFIG_RCU_STALL_COMMON + +#endif /* __LINUX_RCU_NOTIFIER_H */ diff --git a/include/linux/rcupdate.h b/include/linux/rcupdate.h index 5e5f920ade90..f7206b2623c9 100644 --- a/include/linux/rcupdate.h +++ b/include/linux/rcupdate.h @@ -122,8 +122,6 @@ static inline void call_rcu_hurry(struct rcu_head *head, rcu_callback_t func) void rcu_init(void); extern int rcu_scheduler_active; void rcu_sched_clock_irq(int user); -void rcu_report_dead(unsigned int cpu); -void rcutree_migrate_callbacks(int cpu); #ifdef CONFIG_TASKS_RCU_GENERIC void rcu_init_tasks_generic(void); diff --git a/include/linux/rcutiny.h b/include/linux/rcutiny.h index 7b949292908a..d9ac7b136aea 100644 --- a/include/linux/rcutiny.h +++ b/include/linux/rcutiny.h @@ -171,6 +171,6 @@ static inline void rcu_all_qs(void) { barrier(); } #define rcutree_offline_cpu NULL #define rcutree_dead_cpu NULL #define rcutree_dying_cpu NULL -static inline void rcu_cpu_starting(unsigned int cpu) { } +static inline void rcutree_report_cpu_starting(unsigned int cpu) { } #endif /* __LINUX_RCUTINY_H */ diff --git a/include/linux/rcutree.h b/include/linux/rcutree.h index 126f6b418f6a..254244202ea9 100644 --- a/include/linux/rcutree.h +++ b/include/linux/rcutree.h @@ -37,7 +37,6 @@ void synchronize_rcu_expedited(void); void kvfree_call_rcu(struct rcu_head *head, void *ptr); void rcu_barrier(void); -bool rcu_eqs_special_set(int cpu); void rcu_momentary_dyntick_idle(void); void kfree_rcu_scheduler_running(void); bool rcu_gp_might_be_stalled(void); @@ -111,9 +110,21 @@ void rcu_all_qs(void); /* RCUtree hotplug events */ int rcutree_prepare_cpu(unsigned int cpu); int rcutree_online_cpu(unsigned int cpu); -int rcutree_offline_cpu(unsigned int cpu); +void rcutree_report_cpu_starting(unsigned int cpu); + +#ifdef CONFIG_HOTPLUG_CPU int rcutree_dead_cpu(unsigned int cpu); int rcutree_dying_cpu(unsigned int cpu); -void rcu_cpu_starting(unsigned int cpu); +int rcutree_offline_cpu(unsigned int cpu); +#else +#define rcutree_dead_cpu NULL +#define rcutree_dying_cpu NULL +#define rcutree_offline_cpu NULL +#endif + +void rcutree_migrate_callbacks(int cpu); + +/* Called from hotplug and also arm64 early secondary boot failure */ +void rcutree_report_cpu_dead(void); #endif /* __LINUX_RCUTREE_H */ diff --git a/include/linux/slab.h b/include/linux/slab.h index 8228d1276a2f..ff56ab804bf6 100644 --- a/include/linux/slab.h +++ b/include/linux/slab.h @@ -245,8 +245,9 @@ DEFINE_FREE(kfree, void *, if (_T) kfree(_T)) size_t ksize(const void *objp); #ifdef CONFIG_PRINTK -bool kmem_valid_obj(void *object); -void kmem_dump_obj(void *object); +bool kmem_dump_obj(void *object); +#else +static inline bool kmem_dump_obj(void *object) { return false; } #endif /* diff --git a/include/linux/torture.h b/include/linux/torture.h index bb466eec01e4..c98d0c83d117 100644 --- a/include/linux/torture.h +++ b/include/linux/torture.h @@ -81,7 +81,8 @@ static inline void torture_random_init(struct torture_random_state *trsp) } /* Definitions for high-resolution-timer sleeps. */ -int torture_hrtimeout_ns(ktime_t baset_ns, u32 fuzzt_ns, struct torture_random_state *trsp); +int torture_hrtimeout_ns(ktime_t baset_ns, u32 fuzzt_ns, const enum hrtimer_mode mode, + struct torture_random_state *trsp); int torture_hrtimeout_us(u32 baset_us, u32 fuzzt_ns, struct torture_random_state *trsp); int torture_hrtimeout_ms(u32 baset_ms, u32 fuzzt_us, struct torture_random_state *trsp); int torture_hrtimeout_jiffies(u32 baset_j, struct torture_random_state *trsp); @@ -120,10 +121,15 @@ void _torture_stop_kthread(char *m, struct task_struct **tp); #define torture_stop_kthread(n, tp) \ _torture_stop_kthread("Stopping " #n " task", &(tp)) +/* Scheduler-related definitions. */ #ifdef CONFIG_PREEMPTION #define torture_preempt_schedule() __preempt_schedule() #else #define torture_preempt_schedule() do { } while (0) #endif +#if IS_ENABLED(CONFIG_RCU_TORTURE_TEST) || IS_MODULE(CONFIG_RCU_TORTURE_TEST) || IS_ENABLED(CONFIG_LOCK_TORTURE_TEST) || IS_MODULE(CONFIG_LOCK_TORTURE_TEST) +long torture_sched_setaffinity(pid_t pid, const struct cpumask *in_mask); +#endif + #endif /* __LINUX_TORTURE_H */ |