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[v6,16/16,RESEND] rbtree: fix typo in comment of rb_insert_color

Message ID 20171121152009.15591-17-kpraveen.lkml@gmail.com (mailing list archive)
State New, archived
Headers show

Commit Message

Praveen Kumar Nov. 21, 2017, 3:20 p.m. UTC 
From: Wei Yang <weiyang@linux.vnet.ibm.com>

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@linux.vnet.ibm.com>
Acked-by: Michel Lespinasse <walken@google.com>
Cc: Xiao Guangrong <xiaoguangrong@linux.vnet.ibm.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
[Linux commit 1b9c53e849aa65776d4f611d99aa09f856518dad]

Ported to Xen for rb_insert_color API.

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

diff --git a/xen/common/rbtree.c b/xen/common/rbtree.c
index 5c4e239c24..8977aea487 100644
--- a/xen/common/rbtree.c
+++ b/xen/common/rbtree.c
@@ -135,7 +135,7 @@  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