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

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Date:   Wed, 4 Oct 2023 17:09:49 +0800
From:   Peng Zhang <zhangpeng.00@...edance.com>
To:     "Liam R. Howlett" <Liam.Howlett@...cle.com>
Cc:     Peng Zhang <zhangpeng.00@...edance.com>, 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



在 2023/10/4 02:46, Liam R. Howlett 写道:
> * 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.
Okay, I will modify this sentence. Thank you.
> 
>> +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
>>
>