The quilt patch titled
Subject: maple_tree: not necessary to check index/last again
has been removed from the -mm tree. Its filename was
maple_tree-not-necessary-to-check-index-last-again.patch
This patch was dropped because it was merged into the mm-stable branch
of git://git.kernel.org/pub/scm/linux/kernel/git/akpm/mm
------------------------------------------------------
From: Wei Yang <richard.weiyang@xxxxxxxxx>
Subject: maple_tree: not necessary to check index/last again
Date: Thu, 31 Oct 2024 23:16:25 +0000
Before calling mas_new_root(), the range has been checked.
Link: https://lkml.kernel.org/r/20241031231627.14316-4-richard.weiyang@xxxxxxxxx
Signed-off-by: Wei Yang <richard.weiyang@xxxxxxxxx>
Reviewed-by: Liam R. Howlett <Liam.Howlett@xxxxxxxxxx>
Cc: Liam R. Howlett <Liam.Howlett@xxxxxxxxxx>
Cc: Sidhartha Kumar <sidhartha.kumar@xxxxxxxxxx>
Cc: Lorenzo Stoakes <lorenzo.stoakes@xxxxxxxxxx>
Signed-off-by: Andrew Morton <akpm@xxxxxxxxxxxxxxxxxxxx>
---
lib/maple_tree.c | 4 +++-
1 file changed, 3 insertions(+), 1 deletion(-)
--- a/lib/maple_tree.c~maple_tree-not-necessary-to-check-index-last-again
+++ a/lib/maple_tree.c
@@ -3670,7 +3670,9 @@ static inline void mas_new_root(struct m
void __rcu **slots;
unsigned long *pivots;
- if (!entry && !mas->index && mas->last == ULONG_MAX) {
+ WARN_ON_ONCE(mas->index || mas->last != ULONG_MAX);
+
+ if (!entry) {
mas->depth = 0;
mas_set_height(mas);
rcu_assign_pointer(mas->tree->ma_root, entry);
_
Patches currently in -mm which might be from richard.weiyang@xxxxxxxxx are
