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authorPaul E. McKenney <paulmck@linux.vnet.ibm.com>2010-08-17 14:18:46 -0700
committerPaul E. McKenney <paulmck@linux.vnet.ibm.com>2010-08-20 09:00:16 -0700
commit7b0b759b65247cbc66384a912be9acf8d4800636 (patch)
tree085a18f506193725ab16fa61cae41f93dcc7c3e9 /include/linux/rcutiny.h
parent73d4da4d360136826b36f78f5cf72b29da82c8a6 (diff)
downloadblackbird-op-linux-7b0b759b65247cbc66384a912be9acf8d4800636.tar.gz
blackbird-op-linux-7b0b759b65247cbc66384a912be9acf8d4800636.zip
rcu: combine duplicate code, courtesy of CONFIG_PREEMPT_RCU
The CONFIG_PREEMPT_RCU kernel configuration parameter was recently re-introduced, but as an indication of the type of RCU (preemptible vs. non-preemptible) instead of as selecting a given implementation. This commit uses CONFIG_PREEMPT_RCU to combine duplicate code from include/linux/rcutiny.h and include/linux/rcutree.h into include/linux/rcupdate.h. This commit also combines a few other pieces of duplicate code that have accumulated. Signed-off-by: Paul E. McKenney <paulmck@linux.vnet.ibm.com>
Diffstat (limited to 'include/linux/rcutiny.h')
-rw-r--r--include/linux/rcutiny.h51
1 files changed, 0 insertions, 51 deletions
diff --git a/include/linux/rcutiny.h b/include/linux/rcutiny.h
index c6b11dc5ba0a..13877cb93a60 100644
--- a/include/linux/rcutiny.h
+++ b/include/linux/rcutiny.h
@@ -27,34 +27,10 @@
#include <linux/cache.h>
-void rcu_sched_qs(int cpu);
-void rcu_bh_qs(int cpu);
-
-#ifdef CONFIG_TINY_RCU
-#define __rcu_read_lock() preempt_disable()
-#define __rcu_read_unlock() preempt_enable()
-#else /* #ifdef CONFIG_TINY_RCU */
-void __rcu_read_lock(void);
-void __rcu_read_unlock(void);
-#endif /* #else #ifdef CONFIG_TINY_RCU */
-#define __rcu_read_lock_bh() local_bh_disable()
-#define __rcu_read_unlock_bh() local_bh_enable()
-extern void call_rcu_sched(struct rcu_head *head,
- void (*func)(struct rcu_head *rcu));
-
#define rcu_init_sched() do { } while (0)
-extern void synchronize_sched(void);
-
#ifdef CONFIG_TINY_RCU
-#define call_rcu call_rcu_sched
-
-static inline void synchronize_rcu(void)
-{
- synchronize_sched();
-}
-
static inline void synchronize_rcu_expedited(void)
{
synchronize_sched(); /* Only one CPU, so pretty fast anyway!!! */
@@ -67,7 +43,6 @@ static inline void rcu_barrier(void)
#else /* #ifdef CONFIG_TINY_RCU */
-void synchronize_rcu(void);
void rcu_barrier(void);
void synchronize_rcu_expedited(void);
@@ -83,25 +58,6 @@ static inline void synchronize_rcu_bh_expedited(void)
synchronize_sched();
}
-struct notifier_block;
-
-#ifdef CONFIG_NO_HZ
-
-extern void rcu_enter_nohz(void);
-extern void rcu_exit_nohz(void);
-
-#else /* #ifdef CONFIG_NO_HZ */
-
-static inline void rcu_enter_nohz(void)
-{
-}
-
-static inline void rcu_exit_nohz(void)
-{
-}
-
-#endif /* #else #ifdef CONFIG_NO_HZ */
-
#ifdef CONFIG_TINY_RCU
static inline void rcu_preempt_note_context_switch(void)
@@ -117,11 +73,6 @@ static inline int rcu_needs_cpu(int cpu)
return 0;
}
-static inline int rcu_preempt_depth(void)
-{
- return 0;
-}
-
#else /* #ifdef CONFIG_TINY_RCU */
void rcu_preempt_note_context_switch(void);
@@ -141,8 +92,6 @@ static inline void rcu_note_context_switch(int cpu)
rcu_preempt_note_context_switch();
}
-extern void rcu_check_callbacks(int cpu, int user);
-
/*
* Return the number of grace periods.
*/
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