Re: [PATCH v8 1/1] mm/page_alloc.c: refactor initialization of struct page for holes in memory layout
From: Mike Rapoport
Date: Fri Feb 26 2021 - 01:16:07 EST
On Thu, Feb 25, 2021 at 04:08:51PM -0800, Andrew Morton wrote:
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On 2021年2月26日 00:43:51 +0200 Mike Rapoport <rppt@xxxxxxxxxx> wrote:
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>
> From: Mike Rapoport <rppt@xxxxxxxxxxxxx>
>
>
> void __meminit __weak memmap_init_zone(struct zone *zone)
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> {
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> unsigned long zone_start_pfn = zone->zone_start_pfn;
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> unsigned long zone_end_pfn = zone_start_pfn + zone->spanned_pages;
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> int i, nid = zone_to_nid(zone), zone_id = zone_idx(zone);
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> + static unsigned long hole_pfn = 0;
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>
static implies that pgdat->node_zones[] is alwyas sorted in ascending
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pfn order. Always true?
Yes.
--
Sincerely yours,
Mike.