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rcu: Move rcu_request_urgent_qs_task() out of rcutiny.h and rcutree.h

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The rcu_request_urgent_qs_task() function is used only within RCU,
so there is no point in exporting it to the rest of the kernel from
nclude/linux/rcutiny.h and include/linux/rcutree.h.  This commit therefore
moves this function to kernel/rcu/rcu.h.

Reported-by: Ingo Molnar <mingo@kernel.org>
Signed-off-by: Paul E. McKenney <paulmck@linux.vnet.ibm.com>
This commit is contained in:
Paul E. McKenney 2017-05-03 13:45:51 -07:00
parent e3c8d51e1a
commit fe21a27e8c
3 changed files with 6 additions and 7 deletions
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4
include/linux/rcutiny.h
View file

@ -157,10 +157,6 @@ static inline bool rcu_is_watching(void)
return true; return true;
} }
static inline void rcu_request_urgent_qs_task(struct task_struct *t)
{
}
static inline void rcu_all_qs(void) static inline void rcu_all_qs(void)
{ {
barrier(); /* Avoid RCU read-side critical sections leaking across. */ barrier(); /* Avoid RCU read-side critical sections leaking across. */

3
include/linux/rcutree.h
View file

@ -91,10 +91,7 @@ void exit_rcu(void);
void rcu_scheduler_starting(void); void rcu_scheduler_starting(void);
extern int rcu_scheduler_active __read_mostly; extern int rcu_scheduler_active __read_mostly;
bool rcu_is_watching(void); bool rcu_is_watching(void);
void rcu_request_urgent_qs_task(struct task_struct *t);
void rcu_all_qs(void); void rcu_all_qs(void);
/* RCUtree hotplug events */ /* RCUtree hotplug events */

6
kernel/rcu/rcu.h
View file

@ -335,6 +335,12 @@ void rcupdate_announce_bootup_oddness(void);
#define RCU_SCHEDULER_INIT 1 #define RCU_SCHEDULER_INIT 1
#define RCU_SCHEDULER_RUNNING 2 #define RCU_SCHEDULER_RUNNING 2
#ifdef CONFIG_TINY_RCU
static inline void rcu_request_urgent_qs_task(struct task_struct *t) { }
#else /* #ifdef CONFIG_TINY_RCU */
void rcu_request_urgent_qs_task(struct task_struct *t);
#endif /* #else #ifdef CONFIG_TINY_RCU */
enum rcutorture_type { enum rcutorture_type {
RCU_FLAVOR, RCU_FLAVOR,
RCU_BH_FLAVOR, RCU_BH_FLAVOR,