The quilt patch titled
Subject: maple_tree: calculate new_end when needed
has been removed from the -mm tree. Its filename was
maple_tree-calculate-new_end-when-needed.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: calculate new_end when needed
Date: Thu, 17 Oct 2024 01:58:08 +0000
Patch series "Following cleanup after introduce mas_wr_store_type()", v2.
Patch 1 postpone new_end calculation when needed.
Patch 2 removes a unnecessary sanity check in mas_wr_slot_store().
This patch (of 2):
For wr_exact_fit/wr_new_root, we don't need to calculate new_end.
Let's postpone it until necessary.
Link: https://lkml.kernel.org/r/20241017015809.23392-1-richard.weiyang@xxxxxxxxx
Link: https://lkml.kernel.org/r/20241017015809.23392-2-richard.weiyang@xxxxxxxxx
Signed-off-by: Wei Yang <richard.weiyang@xxxxxxxxx>
Reviewed-by: Sidhartha Kumar <sidhartha.kumar@xxxxxxxxxx>
Reviewed-by: Liam R. Howlett <Liam.Howlett@xxxxxxxxxx>
Cc: Lorenzo Stoakes <lorenzo.stoakes@xxxxxxxxxx>
Signed-off-by: Andrew Morton <akpm@xxxxxxxxxxxxxxxxxxxx>
---
lib/maple_tree.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
--- a/lib/maple_tree.c~maple_tree-calculate-new_end-when-needed
+++ a/lib/maple_tree.c
@@ -4211,13 +4211,13 @@ static inline enum store_type mas_wr_sto
if (!wr_mas->entry)
mas_wr_extend_null(wr_mas);
- new_end = mas_wr_new_end(wr_mas);
if ((wr_mas->r_min == mas->index) && (wr_mas->r_max == mas->last))
return wr_exact_fit;
if (unlikely(!mas->index && mas->last == ULONG_MAX))
return wr_new_root;
+ new_end = mas_wr_new_end(wr_mas);
/* Potential spanning rebalance collapsing a node */
if (new_end < mt_min_slots[wr_mas->type]) {
if (!mte_is_root(mas->node) && !(mas->mas_flags & MA_STATE_BULK))
_
Patches currently in -mm which might be from richard.weiyang@xxxxxxxxx are
mm-mlock-set-the-correct-prev-on-failure.patch
maple_tree-print-empty-for-an-empty-tree-on-mt_dump.patch
maple_tree-the-return-value-of-mas_root_expand-is-not-used.patch
maple_tree-not-necessary-to-check-index-last-again.patch
maple_tree-refine-mas_store_root-on-storing-null.patch
maple_tree-add-a-test-checking-storing-null.patch
