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Message-ID: <20230308144343.GA16259@lst.de>
Date:   Wed, 8 Mar 2023 15:43:43 +0100
From:   Christoph Hellwig <hch@....de>
To:     Danilo Krummrich <dakr@...hat.com>
Cc:     Vlastimil Babka <vbabka@...e.cz>,
        "Liam R. Howlett" <Liam.Howlett@...cle.com>, linux-mm@...ck.org,
        linux-kernel@...r.kernel.org, maple-tree@...ts.infradead.org,
        Christoph Hellwig <hch@....de>
Subject: Re: [PATCH] maple_tree: export symbol mas_preallocate()

On Wed, Mar 08, 2023 at 03:34:29PM +0100, Danilo Krummrich wrote:
> On 3/8/23 11:59, Vlastimil Babka wrote:
>> On 3/2/23 02:52, Liam R. Howlett wrote:
>>> Thanks for the patch.  This should indeed be exported.
>>>
>>> Reviewed-by: Liam R. Howlett <Liam.Howlett@...cle.com>
>>
>> What uses it? Don't we export only things used by in-kernel modules?
>
> mas_preallocate() is part of the maple tree's 'Advanced API'. All other 
> functions of this API are exported already.
>
> More specifically, e.g. mas_store_prealloc() is exported which doesn't make 
> a lot of sense without mas_preallocate() being available too.
>
> I don't think it is used outside of mm yet, but as a generic tree 
> implementation maple tree is pretty likely to be used in code built as 
> module, e.g. drivers.

If anyone wants to use they can add the export as needed. 

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