linux-kernel - Re: [RFC] mm: use folio_expected_ref_count() helper for reference counting

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Message-ID: <c2f52065-9758-4ce0-9c15-ef040bebd37e@redhat.com>
Date: Tue, 10 Jun 2025 09:05:25 +0200
From: David Hildenbrand <david@...hat.com>
To: Matthew Wilcox <willy@...radead.org>, Steven Rostedt <rostedt@...dmis.org>
Cc: Shivank Garg <shivankg@....com>, mhiramat@...nel.org, oleg@...hat.com,
 peterz@...radead.org, mingo@...hat.com, acme@...nel.org,
 namhyung@...nel.org, mark.rutland@....com,
 alexander.shishkin@...ux.intel.com, jolsa@...nel.org, irogers@...gle.com,
 adrian.hunter@...el.com, kan.liang@...ux.intel.com,
 akpm@...ux-foundation.org, linux-kernel@...r.kernel.org,
 linux-trace-kernel@...r.kernel.org, linux-perf-users@...r.kernel.org,
 linux-mm@...ck.org
Subject: Re: [RFC] mm: use folio_expected_ref_count() helper for reference
 counting

On 09.06.25 21:51, Matthew Wilcox wrote:
> On Mon, Jun 09, 2025 at 03:31:40PM -0400, Steven Rostedt wrote:
>>
>>
>> On June 9, 2025 3:21:20 PM EDT, Matthew Wilcox <willy@...radead.org> wrote:
>>> On Mon, Jun 09, 2025 at 05:08:07PM +0000, Shivank Garg wrote:
>>>> Replace open-coded folio reference count calculations with the
>>>> folio_expected_ref_count() helper to improve code maintainability
>>>> and reduce duplication.
>>>
>>> If it needs this much additional commentary, perhaps it's not actually
>>> clearer?
>>
>> I don't know. I tend to over explain as I rather make it totally obvious what is happening. I wouldn't say excessive commentary is necessarily a sign that it's not clearer.
> 
> That was a Socratic question, not for you to answer.
> 
> My opinion is that the extra commentary is obfuscatory and should be
> removed.

+1

-- 
Cheers,

David / dhildenb