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Message-ID: <4632dc1a-e561-f04e-421c-a770f9271bbd@redhat.com>
Date:   Mon, 31 Jan 2022 11:42:09 +0100
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Subject: Re: [PATCH v1 2/2] drivers/base/memory: determine and store zone for
 single-zone memory blocks
Content-Language: en-US
To:     linux-kernel@vger.kernel.org
Cc:     linux-mm@kvack.org, Andrew Morton <akpm@linux-foundation.org>,
        "Rafael J. Wysocki" <rafael@kernel.org>,
        Greg Kroah-Hartman <gregkh@linuxfoundation.org>,
        Michal Hocko <mhocko@suse.com>,
        Oscar Salvador <osalvador@suse.de>,
        Rafael Parra <rparrazo@redhat.com>
References: <20220128152620.168715-1-david@redhat.com>
 <20220128152620.168715-3-david@redhat.com>
From:   David Hildenbrand <david@redhat.com>
Organization: Red Hat
In-Reply-To: <20220128152620.168715-3-david@redhat.com>
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>  			 !IS_ALIGNED(start_pfn, pageblock_nr_pages) ||
> -			 !IS_ALIGNED(start_pfn + nr_pages, PAGES_PER_SECTION)))
> +			 !IS_ALIGNED(start_pfn + nr_pages, PAGES_PER_SECTION) ||
> +			 page_zone(pfn_to_page(start_pfn)) != zone ||
> +			 page_zone(pfn_to_page(end_pfn - 1)) != zone))

I just realized that we have to do these sanity checks after our check
for memory holes.

-- 
Thanks,

David / dhildenb