[PATCH 3/3] Documentation/rbtree.txt: Mention rb_entry()

[Ian Abbott]

Mention that rb_entry() can be used as a synonym for the standard
container_of() macro.

Signed-off-by: Ian Abbott <abbotti@xxxxxxxxx>
---
 Documentation/rbtree.txt | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/Documentation/rbtree.txt b/Documentation/rbtree.txt
index 47a8cb5..55008c3 100644
--- a/Documentation/rbtree.txt
+++ b/Documentation/rbtree.txt
@@ -64,7 +64,8 @@ Data nodes in an rbtree tree are structures containing a struct rb_node member:
   };
 
 When dealing with a pointer to the embedded struct rb_node, the containing data
-structure may be accessed with the standard container_of() macro.
+structure may be accessed with the standard container_of() macro, or by the
+rb_entry() macro which is a synonym for container_of().
 
 At the root of each rbtree is an rb_root structure, which is initialized to be
 empty via:
-- 
1.7.12

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