The quilt patch titled
Subject: maple_tree: introduce __mas_set_range()
has been removed from the -mm tree. Its filename was
maple_tree-introduce-__mas_set_range.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: "Liam R. Howlett" <Liam.Howlett@xxxxxxxxxx>
Subject: maple_tree: introduce __mas_set_range()
Date: Mon, 24 Jul 2023 14:31:47 -0400
mas_set_range() resets the node to MAS_START, which will cause a re-walk
of the tree to the range. This is unnecessary when the maple state is
already at the correct location of the write. Add a function that only
sets the range to avoid unnecessary re-walking of the tree.
Link: https://lkml.kernel.org/r/20230724183157.3939892-6-Liam.Howlett@xxxxxxxxxx
Signed-off-by: Liam R. Howlett <Liam.Howlett@xxxxxxxxxx>
Cc: Peng Zhang <zhangpeng.00@xxxxxxxxxxxxx>
Cc: Suren Baghdasaryan <surenb@xxxxxxxxxx>
Signed-off-by: Andrew Morton <akpm@xxxxxxxxxxxxxxxxxxxx>
---
include/linux/maple_tree.h | 21 ++++++++++++++++++---
1 file changed, 18 insertions(+), 3 deletions(-)
--- a/include/linux/maple_tree.h~maple_tree-introduce-__mas_set_range
+++ a/include/linux/maple_tree.h
@@ -539,6 +539,22 @@ static inline void mas_reset(struct ma_s
*/
#define mas_for_each(__mas, __entry, __max) \
while (((__entry) = mas_find((__mas), (__max))) != NULL)
+/**
+ * __mas_set_range() - Set up Maple Tree operation state to a sub-range of the
+ * current location.
+ * @mas: Maple Tree operation state.
+ * @start: New start of range in the Maple Tree.
+ * @last: New end of range in the Maple Tree.
+ *
+ * set the internal maple state values to a sub-range.
+ * Please use mas_set_range() if you do not know where you are in the tree.
+ */
+static inline void __mas_set_range(struct ma_state *mas, unsigned long start,
+ unsigned long last)
+{
+ mas->index = start;
+ mas->last = last;
+}
/**
* mas_set_range() - Set up Maple Tree operation state for a different index.
@@ -553,9 +569,8 @@ static inline void mas_reset(struct ma_s
static inline
void mas_set_range(struct ma_state *mas, unsigned long start, unsigned long last)
{
- mas->index = start;
- mas->last = last;
- mas->node = MAS_START;
+ __mas_set_range(mas, start, last);
+ mas->node = MAS_START;
}
/**
_
Patches currently in -mm which might be from Liam.Howlett@xxxxxxxxxx are
maple_tree-add-hex-output-to-maple_arange64-dump.patch
maple_tree-reorder-replacement-of-nodes-to-avoid-live-lock.patch
maple_tree-introduce-mas_put_in_tree.patch
maple_tree-introduce-mas_tree_parent-definition.patch
maple_tree-change-mas_adopt_children-parent-usage.patch
maple_tree-replace-data-before-marking-dead-in-split-and-spanning-store.patch
