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Date: Thu, 13 Jun 2024 15:29:00 +0200
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Subject: Re: [PATCH v7 1/4] mm/rmap: remove duplicated exit code in pagewalk
 loop
To: Lance Yang <ioworker0@gmail.com>
Cc: Barry Song <21cnbao@gmail.com>, akpm@linux-foundation.org,
 willy@infradead.org, sj@kernel.org, baolin.wang@linux.alibaba.com,
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On 13.06.24 14:43, Lance Yang wrote:
> On Thu, Jun 13, 2024 at 4:49 PM Lance Yang <ioworker0@gmail.com> wrote:
>>
>> On Thu, Jun 13, 2024 at 4:27 PM David Hildenbrand <david@redhat.com> wrote:
>>>
>>> On 13.06.24 09:52, Barry Song wrote:
>>>> On Tue, Jun 11, 2024 at 12:02 AM Lance Yang <ioworker0@gmail.com> wrote:
>>>>>
>>>>> Introduce the labels walk_done and walk_done_err as exit points to
>>>>> eliminate duplicated exit code in the pagewalk loop.
>>>>>
>>>>> Reviewed-by: Zi Yan <ziy@nvidia.com>
>>>>> Reviewed-by: Baolin Wang <baolin.wang@linux.alibaba.com>
>>>>> Reviewed-by: David Hildenbrand <david@redhat.com>
>>>>> Signed-off-by: Lance Yang <ioworker0@gmail.com>
>>>>
>>
>> Hi Barry and David,
>>
>> Thanks for taking time to review!
>>
>>>> I don't think "return false" necessarily indicates an error, so
>>>> "walk_done_err" doesn't seem like an appropriate name.
>>>> However, this is a minor issue.
>>>
>>> Agreed. As we only have a single walk_done user, should we instead
>>> remove "walk_done", keep the "page_vma_mapped_walk_done" for that single
>>> user, and rename "walk_done_err" to "abort_walk" ?
>>
>> Yeah, I agree that 'abort_walk' is better than 'walk_done_err', and let's
>> keep 'page_vma_mapped_walk_done' for that single user ;)
> 
> I just realized that there is another walk_done user, which is
> unmap_huge_pmd_locked().
> 
> Could I keep "walk_done" but rename it to "done_walk"?

Sure. "walk_done"/"walk_abort" might sound better.

-- 
Cheers,

David / dhildenb