linux-kernel - Re: [PATCH] mm/mlock: Use vma_lookup() instead of find

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Message-ID: <a1709d16-6404-fca3-27ed-28e40ee7daed@huawei.com>
Date:   Tue, 15 Mar 2022 20:45:39 +0800
From:   Miaohe Lin <linmiaohe@...wei.com>
To:     Matthew Wilcox <willy@...radead.org>
CC:     <akpm@...ux-foundation.org>, <hughd@...gle.com>,
        <linux-mm@...ck.org>, <linux-kernel@...r.kernel.org>
Subject: Re: [PATCH] mm/mlock: Use vma_lookup() instead of find_vma()

On 2022/3/15 20:39, Matthew Wilcox wrote:
> On Tue, Mar 15, 2022 at 08:24:04PM +0800, Miaohe Lin wrote:
>> On 2022/3/15 0:16, Matthew Wilcox wrote:
>>> On Mon, Mar 14, 2022 at 11:17:28PM +0800, Miaohe Lin wrote:
>>>> Using vma_lookup() verifies the start is contained in the found vma. This
>>>> results in easier to read the code.
>>>
>>> This conflicts with the maple tree.
>>
>> IIUC, maple tree is the implementation detail of the vma and this patch
>> should not be conflict with it. But there might be some trival conflict.
>> Am I supposed to delay this patch until the maple tree's work is done?
> 
> This function is rewritten as part of the maple tree patchset.
> There's no point in merging it now, or later.
> 

I see. Thanks for explanation.

> .
>