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Merge branches 'doc.2018.08.30a', 'dynticks.2018.08.30b', 'srcu.2018.08.30b' and 'torture.2018.08.29a' into HEAD

Browse source 
doc.2018.08.30a: Documentation updates
dynticks.2018.08.30b: RCU flavor consolidation updates and cleanups
srcu.2018.08.30b: SRCU updates
torture.2018.08.29a: Torture-test updates
This commit is contained in:
Paul E. McKenney 2018-08-30 16:12:53 -07:00
commit b56ada1209
35 changed files with 2233 additions and 2613 deletions
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59
include/linux/rcutiny.h
View file

@ -27,12 +27,6 @@
#include <linux/ktime.h>
struct rcu_dynticks;
static inline int rcu_dynticks_snap(struct rcu_dynticks *rdtp)
{
return 0;
}
/* Never flag non-existent other CPUs! */
static inline bool rcu_eqs_special_set(int cpu) { return false; }
@ -46,53 +40,28 @@ static inline void cond_synchronize_rcu(unsigned long oldstate)
might_sleep();
}
static inline unsigned long get_state_synchronize_sched(void)
{
return 0;
}
static inline void cond_synchronize_sched(unsigned long oldstate)
{
might_sleep();
}
extern void rcu_barrier_bh(void);
extern void rcu_barrier_sched(void);
extern void rcu_barrier(void);
static inline void synchronize_rcu_expedited(void)
{
synchronize_sched(); /* Only one CPU, so pretty fast anyway!!! */
synchronize_rcu();
}
static inline void rcu_barrier(void)
{
rcu_barrier_sched(); /* Only one CPU, so only one list of callbacks! */
}
static inline void synchronize_rcu_bh(void)
{
synchronize_sched();
}
static inline void synchronize_rcu_bh_expedited(void)
{
synchronize_sched();
}
static inline void synchronize_sched_expedited(void)
{
synchronize_sched();
}
static inline void kfree_call_rcu(struct rcu_head *head,
rcu_callback_t func)
static inline void kfree_call_rcu(struct rcu_head *head, rcu_callback_t func)
{
call_rcu(head, func);
}
void rcu_qs(void);
static inline void rcu_softirq_qs(void)
{
rcu_qs();
}
#define rcu_note_context_switch(preempt) \
do { \
rcu_sched_qs(); \
rcu_qs(); \
rcu_tasks_qs(current); \
} while (0)
@ -108,6 +77,7 @@ static inline int rcu_needs_cpu(u64 basemono, u64 *nextevt)
*/
static inline void rcu_virt_note_context_switch(int cpu) { }
static inline void rcu_cpu_stall_reset(void) { }
static inline int rcu_jiffies_till_stall_check(void) { return 21 * HZ; }
static inline void rcu_idle_enter(void) { }
static inline void rcu_idle_exit(void) { }
static inline void rcu_irq_enter(void) { }
@ -115,6 +85,11 @@ static inline void rcu_irq_exit_irqson(void) { }
static inline void rcu_irq_enter_irqson(void) { }
static inline void rcu_irq_exit(void) { }
static inline void exit_rcu(void) { }
static inline bool rcu_preempt_need_deferred_qs(struct task_struct *t)
{
return false;
}
static inline void rcu_preempt_deferred_qs(struct task_struct *t) { }
#ifdef CONFIG_SRCU
void rcu_scheduler_starting(void);
#else /* #ifndef CONFIG_SRCU */