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authorChisheng Chen <johnny1001s000602@gmail.com>2025-04-03 19:26:14 +0800
committerAndrew Morton <akpm@linux-foundation.org>2025-05-11 17:54:04 -0700
commit3dfd79cc8772bc2f02e060aa8c0bbbba8c1a1e45 (patch)
tree9b06cd161cb03017dc76398623d6a59ab2d5a71b /lib
parenttask_stack.h: remove obsolete __HAVE_ARCH_KSTACK_END check (diff)
downloadlinux-rng-3dfd79cc8772bc2f02e060aa8c0bbbba8c1a1e45.tar.xz
linux-rng-3dfd79cc8772bc2f02e060aa8c0bbbba8c1a1e45.zip
lib/rbtree.c: fix the example typo
Replace `sr` with `Sr`. The condition `!tmp1 || rb_is_black(tmp1)` ensures that `tmp1` (which is `sibling->rb_right`) is either NULL or a black node. Therefore, the right child of the sibling must be black, and the example should use `Sr` instead of `sr`. Link: https://lkml.kernel.org/r/20250403112614.570140-1-johnny1001s000602@gmail.com Signed-off-by: Chisheng Chen <johnny1001s000602@gmail.com> Cc: Hsin Chang Yu <zxcvb600870024@gmail.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Diffstat (limited to 'lib')
-rw-r--r--lib/rbtree.c8
1 files changed, 4 insertions, 4 deletions
diff --git a/lib/rbtree.c b/lib/rbtree.c
index 989c2d615f92..5114eda6309c 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);