diff options
Diffstat (limited to 'include/linux/rcupdate.h')
| -rw-r--r-- | include/linux/rcupdate.h | 22 |
1 files changed, 16 insertions, 6 deletions
diff --git a/include/linux/rcupdate.h b/include/linux/rcupdate.h index de88b33c0974..e1e5d002fdb9 100644 --- a/include/linux/rcupdate.h +++ b/include/linux/rcupdate.h @@ -97,6 +97,7 @@ void do_trace_rcu_torture_read(const char *rcutorturename, unsigned long secs, unsigned long c_old, unsigned long c); +bool rcu_irq_enter_disabled(void); #else static inline void rcutorture_get_gp_data(enum rcutorture_type test_type, int *flags, @@ -113,6 +114,10 @@ static inline void rcutorture_record_test_transition(void) static inline void rcutorture_record_progress(unsigned long vernum) { } +static inline bool rcu_irq_enter_disabled(void) +{ + return false; +} #ifdef CONFIG_RCU_TRACE void do_trace_rcu_torture_read(const char *rcutorturename, struct rcu_head *rhp, @@ -363,15 +368,20 @@ static inline void rcu_init_nohz(void) #ifdef CONFIG_TASKS_RCU #define TASKS_RCU(x) x extern struct srcu_struct tasks_rcu_exit_srcu; -#define rcu_note_voluntary_context_switch(t) \ +#define rcu_note_voluntary_context_switch_lite(t) \ do { \ - rcu_all_qs(); \ if (READ_ONCE((t)->rcu_tasks_holdout)) \ WRITE_ONCE((t)->rcu_tasks_holdout, false); \ } while (0) +#define rcu_note_voluntary_context_switch(t) \ + do { \ + rcu_all_qs(); \ + rcu_note_voluntary_context_switch_lite(t); \ + } while (0) #else /* #ifdef CONFIG_TASKS_RCU */ #define TASKS_RCU(x) do { } while (0) -#define rcu_note_voluntary_context_switch(t) rcu_all_qs() +#define rcu_note_voluntary_context_switch_lite(t) do { } while (0) +#define rcu_note_voluntary_context_switch(t) rcu_all_qs() #endif /* #else #ifdef CONFIG_TASKS_RCU */ /** @@ -1127,11 +1137,11 @@ do { \ * if the UNLOCK and LOCK are executed by the same CPU or if the * UNLOCK and LOCK operate on the same lock variable. */ -#ifdef CONFIG_PPC +#ifdef CONFIG_ARCH_WEAK_RELEASE_ACQUIRE #define smp_mb__after_unlock_lock() smp_mb() /* Full ordering for lock. */ -#else /* #ifdef CONFIG_PPC */ +#else /* #ifdef CONFIG_ARCH_WEAK_RELEASE_ACQUIRE */ #define smp_mb__after_unlock_lock() do { } while (0) -#endif /* #else #ifdef CONFIG_PPC */ +#endif /* #else #ifdef CONFIG_ARCH_WEAK_RELEASE_ACQUIRE */ #endif /* __LINUX_RCUPDATE_H */ |