linux-kernel - Re: [PATCH v3 5/9] maple_tree: Update the documentation of maple tree

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Date:   Tue, 3 Oct 2023 14:46:25 -0400
From:   "Liam R. Howlett" <Liam.Howlett@...cle.com>
To:     Peng Zhang <zhangpeng.00@...edance.com>
Cc:     corbet@....net, akpm@...ux-foundation.org, willy@...radead.org,
        brauner@...nel.org, surenb@...gle.com, michael.christie@...cle.com,
        mjguzik@...il.com, mathieu.desnoyers@...icios.com,
        npiggin@...il.com, peterz@...radead.org, oliver.sang@...el.com,
        maple-tree@...ts.infradead.org, linux-mm@...ck.org,
        linux-doc@...r.kernel.org, linux-kernel@...r.kernel.org,
        linux-fsdevel@...r.kernel.org
Subject: Re: [PATCH v3 5/9] maple_tree: Update the documentation of maple tree

* Peng Zhang <zhangpeng.00@...edance.com> [230924 23:58]:
> Introduce the new interface mtree_dup() in the documentation.
> 
> Signed-off-by: Peng Zhang <zhangpeng.00@...edance.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

"You can use mtree_dup() to create an identical tree."  duplicate an
identical tree seems redundant.

> +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
>