[PATCH v1 2/2] mm: simplify free_highmem_page() and free_reserved_page()

[David Hildenbrand]

On 27.01.21 12:51, Oscar Salvador wrote:
> On Tue, Jan 26, 2021 at 07:21:13PM +0100, David Hildenbrand wrote:
>> adjust_managed_page_count() as called by free_reserved_page() properly
>> handles pages in a highmem zone, so we can reuse it for
>> free_highmem_page().
>>
>> We can now get rid of totalhigh_pages_inc() and simplify
>> free_reserved_page().
>>
>> Cc: Andrew Morton <akpm at linux-foundation.org>
>> Cc: Thomas Gleixner <tglx at linutronix.de>
>> Cc: "Peter Zijlstra (Intel)" <peterz at infradead.org>
>> Cc: Mike Rapoport <rppt at kernel.org>
>> Cc: Oscar Salvador <osalvador at suse.de>
>> Cc: Michal Hocko <mhocko at kernel.org>
>> Cc: Wei Yang <richard.weiyang at linux.alibaba.com>
>> Signed-off-by: David Hildenbrand <david at redhat.com>
> 
> Reviewed-by: Oscar Salvador <osalvador at suse.de>
> 
>> +#define free_highmem_page(page) free_reserved_page(page)
> 
> Should we place that under #ifdef CONFIG_HIGHMEM to make clear
> that it is only used on that config?
> Maybe the #ifdefery ugliness does not pay off.

Yeah, most probably not worth it.

-- 
Thanks,

David / dhildenb