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From:   Peng Zhang <zhangpeng.00@bytedance.com>
To:     Liam.Howlett@oracle.com, corbet@lwn.net, akpm@linux-foundation.org,
        willy@infradead.org, brauner@kernel.org, surenb@google.com,
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Cc:     zhangpeng.00@bytedance.com, maple-tree@lists.infradead.org,
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Subject: [PATCH v3 5/9] maple_tree: Update the documentation of maple tree
Date:   Mon, 25 Sep 2023 11:56:13 +0800
Message-Id: <20230925035617.84767-6-zhangpeng.00@bytedance.com>
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Introduce the new interface mtree_dup() in the documentation.

Signed-off-by: Peng Zhang <zhangpeng.00@bytedance.com>
---
 Documentation/core-api/maple_tree.rst | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/Documentation/core-api/maple_tree.rst b/Documentation/core-api/maple_tree.rst
index 45defcf15da7..3d8a1edf6d04 100644
--- a/Documentation/core-api/maple_tree.rst
+++ b/Documentation/core-api/maple_tree.rst
@@ -81,6 +81,9 @@ section.
 Sometimes it is necessary to ensure the next call to store to a maple tree does
 not allocate memory, please see :ref:`maple-tree-advanced-api` for this use case.
 
+You can use mtree_dup() to duplicate an identical tree. It is a more efficient
+way than inserting all elements one by one into a new tree.
+
 Finally, you can remove all entries from a maple tree by calling
 mtree_destroy().  If the maple tree entries are pointers, you may wish to free
 the entries first.
@@ -112,6 +115,7 @@ Takes ma_lock internally:
  * mtree_insert()
  * mtree_insert_range()
  * mtree_erase()
+ * mtree_dup()
  * mtree_destroy()
  * mt_set_in_rcu()
  * mt_clear_in_rcu()
-- 
2.20.1