[merged mm-stable] maple_tree-refine-ma_state-init-from-mas_start.patch removed from -mm tree

[merged mm-stable] maple_tree-refine-ma_state-init-from-mas_start.patch removed from -mm tree

[Andrew Morton]

The quilt patch titled
     Subject: maple_tree: refine ma_state init from mas_start()
has been removed from the -mm tree.  Its filename was
     maple_tree-refine-ma_state-init-from-mas_start.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: Vernon Yang <vernon2gm@gmail.com>
Subject: maple_tree: refine ma_state init from mas_start()
Date: Wed, 21 Dec 2022 14:00:57 +0800

If mas->node is an MAS_START, there are three cases, and they all assign
different values to mas->node and mas->offset.  So there is no need to set
them to a default value before updating.

Update them directly to make them easier to understand and for better
readability.

Link: https://lkml.kernel.org/r/20221221060058.609003-7-vernon2gm@gmail.com
Signed-off-by: Vernon Yang <vernon2gm@gmail.com>
Reviewed-by: Liam R. Howlett <Liam.Howlett@oracle.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
---

 lib/maple_tree.c |    6 +++---
 1 file changed, 3 insertions(+), 3 deletions(-)

--- a/lib/maple_tree.c~maple_tree-refine-ma_state-init-from-mas_start
+++ a/lib/maple_tree.c
@@ -1329,7 +1329,7 @@ static void mas_node_count(struct ma_sta
  * mas_start() - Sets up maple state for operations.
  * @mas: The maple state.
  *
- * If mas->node == MAS_START, then set the min, max, depth, and offset to
+ * If mas->node == MAS_START, then set the min, max and depth to
  * defaults.
  *
  * Return:
@@ -1343,22 +1343,22 @@ static inline struct maple_enode *mas_st
 	if (likely(mas_is_start(mas))) {
 		struct maple_enode *root;
 
-		mas->node = MAS_NONE;
 		mas->min = 0;
 		mas->max = ULONG_MAX;
 		mas->depth = 0;
-		mas->offset = 0;
 
 		root = mas_root(mas);
 		/* Tree with nodes */
 		if (likely(xa_is_node(root))) {
 			mas->depth = 1;
 			mas->node = mte_safe_root(root);
+			mas->offset = 0;
 			return NULL;
 		}
 
 		/* empty tree */
 		if (unlikely(!root)) {
+			mas->node = MAS_NONE;
 			mas->offset = MAPLE_NODE_SLOTS;
 			return NULL;
 		}
_

Patches currently in -mm which might be from vernon2gm@gmail.com are

maple_tree-remove-the-parameter-entry-of-mas_preallocate.patch
mm-mmap-fix-typo-in-comment.patch
maple_tree-fix-comment-of-mte_destroy_walk.patch
mm-mmap-fix-comment-of-unmapped_area_topdown.patch