[PATCH] rcu file: use atomic primitives
Use atomic_inc_not_zero for rcu files instead of special case rcuref.
Signed-off-by: Nick Piggin <npiggin@suse.de>
Cc: "Paul E. McKenney" <paulmck@us.ibm.com>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
diff --git a/include/linux/radix-tree.h b/include/linux/radix-tree.h
index 36e5d26..c57ff2f 100644
--- a/include/linux/radix-tree.h
+++ b/include/linux/radix-tree.h
@@ -19,6 +19,7 @@
#ifndef _LINUX_RADIX_TREE_H
#define _LINUX_RADIX_TREE_H
+#include <linux/sched.h>
#include <linux/preempt.h>
#include <linux/types.h>