Message-ID: <8aa1db52-bc5b-a734-cf4f-ddee518ee9fb@redhat.com>
Date:   Mon, 20 Mar 2023 12:14:30 +0100
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Subject: Re: [PATCH 02/15] mm/cma: move init_cma_reserved_pages() to cma.c and
 make it static
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To:     Mike Rapoport <rppt@kernel.org>
Cc:     Andrew Morton <akpm@linux-foundation.org>,
        Matthew Wilcox <willy@infradead.org>,
        Mel Gorman <mgorman@suse.de>, Michal Hocko <mhocko@kernel.org>,
        Thomas Bogendoerfer <tsbogend@alpha.franken.de>,
        Vlastimil Babka <vbabka@suse.cz>, linux-kernel@vger.kernel.org,
        linux-mips@vger.kernel.org, linux-mm@kvack.org
References: <20230319220008.2138576-1-rppt@kernel.org>
 <20230319220008.2138576-3-rppt@kernel.org>
 <8a461e44-7d24-5b5d-db04-e7fa85beeaa7@redhat.com>
 <ZBg/SCbVBAqNCU+F@kernel.org>
From:   David Hildenbrand <david@redhat.com>
Organization: Red Hat
In-Reply-To: <ZBg/SCbVBAqNCU+F@kernel.org>
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On 20.03.23 12:11, Mike Rapoport wrote:
> On Mon, Mar 20, 2023 at 11:30:20AM +0100, David Hildenbrand wrote:
>> On 19.03.23 22:59, Mike Rapoport wrote:
>>> From: "Mike Rapoport (IBM)" <rppt@kernel.org>
>>>
>>> init_cma_reserved_pages() only used in cma.c, no point of having it in
>>> page_alloc.c.
>>>
>>> Move init_cma_reserved_pages() to cma.c and make it static.
>>
>> I guess the motivation is to avoid letting too many subsystems mess with
>> pageblock migratetypes, managed pages, PG_reserved ...
> 
> Judging by the git log it just ended up in page_alloc.c because
> set_pageblock_migratetype() was static back then ;)


Yeah, it leaked into page_isolation, which heavily relies on migratetype 
handling :)

-- 
Thanks,

David / dhildenb