Since commit c1adf20052d8 ("Introduce rb_replace_node_rcu()") rbtree_augmented.h uses RCU related data structures but does not include them. It works as long as gets somehow included before that and fails otherwise.
Cc: David Howells <dhowe...@redhat.com> Cc: "Peter Zijlstra (Intel)" <pet...@infradead.org> Signed-off-by: Sebastian Andrzej Siewior <bige...@linutronix.de> --- include/linux/rbtree_augmented.h | 1 + 1 file changed, 1 insertion(+) diff --git a/include/linux/rbtree_augmented.h b/include/linux/rbtree_augmented.h index d076183e49be..36bfb4dd57ae 100644 --- a/include/linux/rbtree_augmented.h +++ b/include/linux/rbtree_augmented.h @@ -26,6 +26,7 @@ #include <linux/compiler.h> #include <linux/rbtree.h> +#include <linux/rcupdate.h> /* * Please note - only struct rb_augment_callbacks and the prototypes for -- 2.9.3