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rcu: Re-arrange code to reduce #ifdef pain

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Remove #ifdefs from kernel/rcupdate.c and
include/linux/rcupdate.h by moving code to
include/linux/rcutiny.h, include/linux/rcutree.h, and
kernel/rcutree.c.

Also remove some definitions that are no longer used.

Signed-off-by: Paul E. McKenney <paulmck@linux.vnet.ibm.com>
Cc: laijs@cn.fujitsu.com
Cc: dipankar@in.ibm.com
Cc: mathieu.desnoyers@polymtl.ca
Cc: josh@joshtriplett.org
Cc: dvhltc@us.ibm.com
Cc: niv@us.ibm.com
Cc: peterz@infradead.org
Cc: rostedt@goodmis.org
Cc: Valdis.Kletnieks@vt.edu
Cc: dhowells@redhat.com
LKML-Reference: <1258908830885-git-send-email->
Signed-off-by: Ingo Molnar <mingo@elte.hu>
This commit is contained in:
Paul E. McKenney
2009-11-22 08:53:50 -08:00
committed by Ingo Molnar
parent 9f680ab414
commit 6ebb237bec
6 changed files with 118 additions and 117 deletions
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12
include/linux/rcupdate.h
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@@ -52,11 +52,6 @@ struct rcu_head {
};
/* Exported common interfaces */
#ifdef CONFIG_TREE_PREEMPT_RCU
extern void synchronize_rcu(void);
#else /* #ifdef CONFIG_TREE_PREEMPT_RCU */
#define synchronize_rcu synchronize_sched
#endif /* #else #ifdef CONFIG_TREE_PREEMPT_RCU */
extern void synchronize_rcu_bh(void);
extern void synchronize_sched(void);
extern void rcu_barrier(void);
@@ -67,13 +62,6 @@ extern int sched_expedited_torture_stats(char *page);
/* Internal to kernel */
extern void rcu_init(void);
extern void rcu_scheduler_starting(void);
#ifndef CONFIG_TINY_RCU
extern int rcu_needs_cpu(int cpu);
#else
static inline int rcu_needs_cpu(int cpu) { return 0; }
#endif
extern int rcu_scheduler_active;
#if defined(CONFIG_TREE_RCU) || defined(CONFIG_TREE_PREEMPT_RCU)
#include <linux/rcutree.h>