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rcu: slim down rcutiny by removing rcu_scheduler_active and friends

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TINY_RCU does not need rcu_scheduler_active unless CONFIG_DEBUG_LOCK_ALLOC.
So conditionally compile rcu_scheduler_active in order to slim down
rcutiny a bit more.  Also gets rid of an EXPORT_SYMBOL_GPL, which is
responsible for most of the slimming.

Signed-off-by: Paul E. McKenney <paulmck@linux.vnet.ibm.com>
This commit is contained in:
Paul E. McKenney 2010-04-02 16:17:17 -07:00
parent 25502a6c13
commit bbad937983
7 changed files with 82 additions and 22 deletions
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3
include/linux/rcutree.h
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@ -123,4 +123,7 @@ static inline int rcu_blocking_is_gp(void)
return num_online_cpus() == 1;
}
extern void rcu_scheduler_starting(void);
extern int rcu_scheduler_active __read_mostly;
#endif /* __LINUX_RCUTREE_H */