[Xen-devel] [PATCH 20/20] lib/rbtree.c: fix typo in comment of __rb_insert()

[Praveen Kumar <kpraveen.lkml@xxxxxxxxx>]

In case 1, it passes down the BLACK color from G to p and u, and maintains
the color of n.  By doing so, it maintains the black height of the sub-tree.

While in the comment, it marks the color of n to BLACK.  This is a typo
and not consistents with the code.

This patch fixs this typo in comment.

Signed-off-by: Wei Yang <weiyang@xxxxxxxxxxxxxxxxxx>
Acked-by: Michel Lespinasse <walken@xxxxxxxxxx>
Cc: Xiao Guangrong <xiaoguangrong@xxxxxxxxxxxxxxxxxx>
Signed-off-by: Andrew Morton <akpm@xxxxxxxxxxxxxxxxxxxx>
Signed-off-by: Linus Torvalds <torvalds@xxxxxxxxxxxxxxxxxxxx>
[Linux commit 1b9c53e849aa65776d4f611d99aa09f856518dad]

Ported to Xen for rb_insert_color API.

Signed-off-by: Praveen Kumar <kpraveen.lkml@xxxxxxxxx>
---
 xen/common/rbtree.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/xen/common/rbtree.c b/xen/common/rbtree.c
index 68e505bede..4fe5354785 100644
--- a/xen/common/rbtree.c
+++ b/xen/common/rbtree.c
@@ -138,7 +138,7 @@ void rb_insert_color(struct rb_node *node, struct rb_root 
*root)
                  *      / \          / \
                  *     p   u  -->   P   U
                  *    /            /
-                 *   n            N
+                 *   n            n
                  *
                  * However, since g's parent might be red, and
                  * 4) does not allow this, we need to recurse
-- 
2.12.0


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