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rcu: Move torture-related functions out of rcutiny.h and rcutree.h

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The various functions similar to rcu_batches_started(), the
function show_rcu_gp_kthreads(), the various functions similar to
rcu_force_quiescent_state(), and the variables rcutorture_testseq and
rcutorture_vernum are used only within RCU.  There is therefore no point
in exporting them to the kernel at large from include/linux/rcutiny.h
and include/linux/rcutree.h.  This commit therefore moves all of these
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 13:37:16 -07:00
parent 17a8c18731
commit e3c8d51e1a
3 changed files with 99 additions and 96 deletions
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80
include/linux/rcutiny.h
View file

@ -106,86 +106,6 @@ static inline void rcu_virt_note_context_switch(int cpu)
{
}
/*
* Return the number of grace periods started.
*/
static inline unsigned long rcu_batches_started(void)
{
return 0;
}
/*
* Return the number of bottom-half grace periods started.
*/
static inline unsigned long rcu_batches_started_bh(void)
{
return 0;
}
/*
* Return the number of sched grace periods started.
*/
static inline unsigned long rcu_batches_started_sched(void)
{
return 0;
}
/*
* Return the number of grace periods completed.
*/
static inline unsigned long rcu_batches_completed(void)
{
return 0;
}
/*
* Return the number of bottom-half grace periods completed.
*/
static inline unsigned long rcu_batches_completed_bh(void)
{
return 0;
}
/*
* Return the number of sched grace periods completed.
*/
static inline unsigned long rcu_batches_completed_sched(void)
{
return 0;
}
/*
* Return the number of expedited grace periods completed.
*/
static inline unsigned long rcu_exp_batches_completed(void)
{
return 0;
}
/*
* Return the number of expedited sched grace periods completed.
*/
static inline unsigned long rcu_exp_batches_completed_sched(void)
{
return 0;
}
static inline void rcu_force_quiescent_state(void)
{
}
static inline void rcu_bh_force_quiescent_state(void)
{
}
static inline void rcu_sched_force_quiescent_state(void)
{
}
static inline void show_rcu_gp_kthreads(void)
{
}
static inline void rcu_cpu_stall_reset(void)
{
}

16
include/linux/rcutree.h
View file

@ -79,22 +79,6 @@ void cond_synchronize_rcu(unsigned long oldstate);
unsigned long get_state_synchronize_sched(void);
void cond_synchronize_sched(unsigned long oldstate);
extern unsigned long rcutorture_testseq;
extern unsigned long rcutorture_vernum;
unsigned long rcu_batches_started(void);
unsigned long rcu_batches_started_bh(void);
unsigned long rcu_batches_started_sched(void);
unsigned long rcu_batches_completed(void);
unsigned long rcu_batches_completed_bh(void);
unsigned long rcu_batches_completed_sched(void);
unsigned long rcu_exp_batches_completed(void);
unsigned long rcu_exp_batches_completed_sched(void);
void show_rcu_gp_kthreads(void);
void rcu_force_quiescent_state(void);
void rcu_bh_force_quiescent_state(void);
void rcu_sched_force_quiescent_state(void);
void rcu_idle_enter(void);
void rcu_idle_exit(void);
void rcu_irq_enter(void);

99
kernel/rcu/rcu.h
View file

@ -420,6 +420,105 @@ static inline void srcutorture_get_gp_data(enum rcutorture_type test_type,
#endif
#ifdef CONFIG_TINY_RCU
/*
* Return the number of grace periods started.
*/
static inline unsigned long rcu_batches_started(void)
{
return 0;
}
/*
* Return the number of bottom-half grace periods started.
*/
static inline unsigned long rcu_batches_started_bh(void)
{
return 0;
}
/*
* Return the number of sched grace periods started.
*/
static inline unsigned long rcu_batches_started_sched(void)
{
return 0;
}
/*
* Return the number of grace periods completed.
*/
static inline unsigned long rcu_batches_completed(void)
{
return 0;
}
/*
* Return the number of bottom-half grace periods completed.
*/
static inline unsigned long rcu_batches_completed_bh(void)
{
return 0;
}
/*
* Return the number of sched grace periods completed.
*/
static inline unsigned long rcu_batches_completed_sched(void)
{
return 0;
}
/*
* Return the number of expedited grace periods completed.
*/
static inline unsigned long rcu_exp_batches_completed(void)
{
return 0;
}
/*
* Return the number of expedited sched grace periods completed.
*/
static inline unsigned long rcu_exp_batches_completed_sched(void)
{
return 0;
}
static inline void rcu_force_quiescent_state(void)
{
}
static inline void rcu_bh_force_quiescent_state(void)
{
}
static inline void rcu_sched_force_quiescent_state(void)
{
}
static inline void show_rcu_gp_kthreads(void)
{
}
#else /* #ifdef CONFIG_TINY_RCU */
extern unsigned long rcutorture_testseq;
extern unsigned long rcutorture_vernum;
unsigned long rcu_batches_started(void);
unsigned long rcu_batches_started_bh(void);
unsigned long rcu_batches_started_sched(void);
unsigned long rcu_batches_completed(void);
unsigned long rcu_batches_completed_bh(void);
unsigned long rcu_batches_completed_sched(void);
unsigned long rcu_exp_batches_completed(void);
unsigned long rcu_exp_batches_completed_sched(void);
void show_rcu_gp_kthreads(void);
void rcu_force_quiescent_state(void);
void rcu_bh_force_quiescent_state(void);
void rcu_sched_force_quiescent_state(void);
#endif /* #else #ifdef CONFIG_TINY_RCU */
#if defined(CONFIG_RCU_NOCB_CPU_ALL)
static inline bool rcu_is_nocb_cpu(int cpu) { return true; }
#elif defined(CONFIG_RCU_NOCB_CPU)