linux-kernel - Re: [PATCH v1 2/2] mm/highmem: make nr_free

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Date: Mon, 10 Jun 2024 10:23:13 +0200
From: David Hildenbrand <david@...hat.com>
To: Wei Yang <richard.weiyang@...il.com>
Cc: linux-kernel@...r.kernel.org, linux-mm@...ck.org,
 Andrew Morton <akpm@...ux-foundation.org>
Subject: Re: [PATCH v1 2/2] mm/highmem: make nr_free_highpages() return
 "unsigned long"

On 08.06.24 02:51, Wei Yang wrote:
> On Fri, Jun 07, 2024 at 10:37:11AM +0200, David Hildenbrand wrote:
>> It looks rather weird that totalhigh_pages() returns an
>> "unsigned long" but nr_free_highpages() returns an "unsigned int".
>>
>> Let's return an "unsigned long" from nr_free_highpages() to be
>> consistent.
>>
>> While at it, use a plain "0" instead of a "0UL" in the !CONFIG_HIGHMEM
>> totalhigh_pages() implementation, to make these look alike as well.
> 
> I am not sure why not use 0UL for both?

See my reply to Oscar, thanks for the review!

-- 
Cheers,

David / dhildenb