[merged mm-stable] maple_tree-preserve-the-tree-attributes-when-destroying-maple-tree.patch removed from -mm tree

[merged mm-stable] maple_tree-preserve-the-tree-attributes-when-destroying-maple-tree.patch removed from -mm tree

[Andrew Morton]

The quilt patch titled
     Subject: maple_tree: preserve the tree attributes when destroying maple tree
has been removed from the -mm tree.  Its filename was
     maple_tree-preserve-the-tree-attributes-when-destroying-maple-tree.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: Peng Zhang <zhangpeng.00@bytedance.com>
Subject: maple_tree: preserve the tree attributes when destroying maple tree
Date: Fri, 27 Oct 2023 11:38:44 +0800

When destroying maple tree, preserve its attributes and then turn it into
an empty tree.  This allows it to be reused without needing to be
reinitialized.

Link: https://lkml.kernel.org/r/20231027033845.90608-10-zhangpeng.00@bytedance.com
Signed-off-by: Peng Zhang <zhangpeng.00@bytedance.com>
Reviewed-by: Liam R. Howlett <Liam.Howlett@oracle.com>
Cc: Christian Brauner <brauner@kernel.org>
Cc: Jonathan Corbet <corbet@lwn.net>
Cc: Mateusz Guzik <mjguzik@gmail.com>
Cc: Mathieu Desnoyers <mathieu.desnoyers@efficios.com>
Cc: Matthew Wilcox <willy@infradead.org>
Cc: Michael S. Tsirkin <mst@redhat.com>
Cc: Mike Christie <michael.christie@oracle.com>
Cc: Nicholas Piggin <npiggin@gmail.com>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Suren Baghdasaryan <surenb@google.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
---

 lib/maple_tree.c |    2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

--- a/lib/maple_tree.c~maple_tree-preserve-the-tree-attributes-when-destroying-maple-tree
+++ a/lib/maple_tree.c
@@ -6763,7 +6763,7 @@ void __mt_destroy(struct maple_tree *mt)
 	if (xa_is_node(root))
 		mte_destroy_walk(root, mt);
 
-	mt->ma_flags = 0;
+	mt->ma_flags = mt_attr(mt);
 }
 EXPORT_SYMBOL_GPL(__mt_destroy);
 
_

Patches currently in -mm which might be from zhangpeng.00@bytedance.com are

maple_tree-move-the-check-forward-to-avoid-static-check-warning.patch
maple_tree-avoid-ascending-when-mas-min-is-also-the-parents-minimum.patch
maple_tree-remove-an-unused-parameter-for-ma_meta_end.patch
maple_tree-delete-one-of-the-two-identical-checks.patch
maple_tree-simplify-mas_leaf_set_meta.patch