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authorPaul E. McKenney <paulmck@linux.vnet.ibm.com>2010-04-02 16:17:17 -0700
committerPaul E. McKenney <paulmck@linux.vnet.ibm.com>2010-05-10 11:08:34 -0700
commitbbad937983147c017c25406860287cb94da9af7c (patch)
tree57311598c360b92b189c7ec337146e4bc779c73d /include/linux/rcutiny.h
parent25502a6c13745f4650cc59322bd198194f55e796 (diff)
downloadop-kernel-dev-bbad937983147c017c25406860287cb94da9af7c.zip
op-kernel-dev-bbad937983147c017c25406860287cb94da9af7c.tar.gz
rcu: slim down rcutiny by removing rcu_scheduler_active and friends
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>
Diffstat (limited to 'include/linux/rcutiny.h')
-rw-r--r--include/linux/rcutiny.h13
1 files changed, 13 insertions, 0 deletions
diff --git a/include/linux/rcutiny.h b/include/linux/rcutiny.h
index ff22b97..14e5a76 100644
--- a/include/linux/rcutiny.h
+++ b/include/linux/rcutiny.h
@@ -128,4 +128,17 @@ static inline int rcu_preempt_depth(void)
return 0;
}
+#ifdef CONFIG_DEBUG_LOCK_ALLOC
+
+extern int rcu_scheduler_active __read_mostly;
+extern void rcu_scheduler_starting(void);
+
+#else /* #ifdef CONFIG_DEBUG_LOCK_ALLOC */
+
+static inline void rcu_scheduler_starting(void)
+{
+}
+
+#endif /* #else #ifdef CONFIG_DEBUG_LOCK_ALLOC */
+
#endif /* __LINUX_RCUTINY_H */
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