From cedb08caac587b55c79d0463400839acab4638c0 Mon Sep 17 00:00:00 2001 From: Hsin Chang Yu Date: Fri, 28 Jun 2024 22:22:29 +0800 Subject: [PATCH] lib/rbtree.c: fix the example typo Replace the "Sr" with "sr", the example is wrong if sl and N don't have child nodes, so sr should be red node. Link: https://lkml.kernel.org/r/20240628142229.69419-1-zxcvb600870024@gmail.com Signed-off-by: Hsin Chang Yu Signed-off-by: Andrew Morton --- lib/rbtree.c | 8 ++++---- 1 file changed, 4 insertions(+), 4 deletions(-) diff --git a/lib/rbtree.c b/lib/rbtree.c index 5114eda6309c..989c2d615f92 100644 --- a/lib/rbtree.c +++ b/lib/rbtree.c @@ -297,9 +297,9 @@ ____rb_erase_color(struct rb_node *parent, struct rb_root *root, * / \ / \ * N S --> N sl * / \ \ - * sl Sr S + * sl sr S * \ - * Sr + * sr * * Note: p might be red, and then both * p and sl are red after rotation(which @@ -312,9 +312,9 @@ ____rb_erase_color(struct rb_node *parent, struct rb_root *root, * / \ / \ * N sl --> P S * \ / \ - * S N Sr + * S N sr * \ - * Sr + * sr */ tmp1 = tmp2->rb_right; WRITE_ONCE(sibling->rb_left, tmp1);