Re: [PATCH v8 1/1] mm/page_alloc.c: refactor initialization of struct page for holes in memory layout
From: Mike Rapoport <rppt@kernel.org>
Date: 2021-02-26 06:16:05
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On Thu, Feb 25, 2021 at 04:08:51PM -0800, Andrew Morton wrote:
On Fri, 26 Feb 2021 00:43:51 +0200 Mike Rapoport [off-list ref] wrote:quoted
From: Mike Rapoport <redacted>quoted
void __meminit __weak memmap_init_zone(struct zone *zone) { unsigned long zone_start_pfn = zone->zone_start_pfn; unsigned long zone_end_pfn = zone_start_pfn + zone->spanned_pages; int i, nid = zone_to_nid(zone), zone_id = zone_idx(zone); + static unsigned long hole_pfn = 0;static implies that pgdat->node_zones[] is alwyas sorted in ascending pfn order. Always true?
Yes. -- Sincerely yours, Mike.