[patch 106/262] mm/page_alloc.c: use helper function zone_spans_pfn()

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From: Miaohe Lin <linmiaohe@xxxxxxxxxx>
Subject: mm/page_alloc.c: use helper function zone_spans_pfn()

Use helper function zone_spans_pfn() to check whether pfn is within a zone
to simplify the code slightly.

Link: https://lkml.kernel.org/r/20210902121242.41607-5-linmiaohe@xxxxxxxxxx
Signed-off-by: Miaohe Lin <linmiaohe@xxxxxxxxxx>
Acked-by: Mel Gorman <mgorman@xxxxxxxxxxxxxxxxxxx>
Reviewed-by: David Hildenbrand <david@xxxxxxxxxx>
Cc: Peter Zijlstra <peterz@xxxxxxxxxxxxx>
Cc: Stephen Rothwell <sfr@xxxxxxxxxxxxxxxx>
Cc: Vlastimil Babka <vbabka@xxxxxxx>
Signed-off-by: Andrew Morton <akpm@xxxxxxxxxxxxxxxxxxxx>
---

 mm/page_alloc.c |    2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

--- a/mm/page_alloc.c~mm-page_allocc-use-helper-function-zone_spans_pfn
+++ a/mm/page_alloc.c
@@ -1583,7 +1583,7 @@ static void __meminit init_reserved_page
 	for (zid = 0; zid < MAX_NR_ZONES; zid++) {
 		struct zone *zone = &pgdat->node_zones[zid];
 
-		if (pfn >= zone->zone_start_pfn && pfn < zone_end_pfn(zone))
+		if (zone_spans_pfn(zone, pfn))
 			break;
 	}
 	__init_single_page(pfn_to_page(pfn), pfn, zid, nid);
_



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