diff mbox series

[4/4] maple_tree: only root node could be deficient

Message ID 20241020024628.22469-5-richard.weiyang@gmail.com (mailing list archive)
State New
Headers show
Series maple_tree: current split may result in deficient node | expand

Commit Message

Wei Yang Oct. 20, 2024, 2:46 a.m. UTC 
Each level's right most node could have (max == ULONG_MAX).

Only root node could be deficient.

Signed-off-by: Wei Yang <richard.weiyang@gmail.com>
CC: Liam R. Howlett <Liam.Howlett@Oracle.com>
CC: Sidhartha Kumar <sidhartha.kumar@oracle.com>
CC: Lorenzo Stoakes <lorenzo.stoakes@oracle.com>
---
 lib/maple_tree.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)
diff mbox series

Patch

diff --git a/lib/maple_tree.c b/lib/maple_tree.c
index c2d4b188646c..e6b2ab5e27b0 100644
--- a/lib/maple_tree.c
+++ b/lib/maple_tree.c
@@ -7610,7 +7610,7 @@  void mt_validate(struct maple_tree *mt)
 		MAS_WARN_ON(&mas, mte_dead_node(mas.node));
 		end = mas_data_end(&mas);
 		if (MAS_WARN_ON(&mas, (end < mt_min_slot_count(mas.node)) &&
-				(mas.max != ULONG_MAX))) {
+				(!mte_is_root(mas.node)))) {
 			pr_err("Invalid size %u of %p\n", end, mas_mn(&mas));
 		}