From: Miaohe Lin <linmiaohe@huawei.com>
Date: Fri, 5 Nov 2021 20:40:11 +0000 (-0700)
Subject: mm/page_alloc.c: use helper function zone_spans_pfn()
X-Git-Url: http://git.maquefel.me/?a=commitdiff_plain;h=86fb05b9cc1ac7cdcf37e5408b927dd3ad95db96;p=linux.git

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@huawei.com
Signed-off-by: Miaohe Lin <linmiaohe@huawei.com>
Acked-by: Mel Gorman <mgorman@techsingularity.net>
Reviewed-by: David Hildenbrand <david@redhat.com>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Stephen Rothwell <sfr@canb.auug.org.au>
Cc: Vlastimil Babka <vbabka@suse.cz>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
---

diff --git a/mm/page_alloc.c b/mm/page_alloc.c
index c494c9c66f4f0..26aebbbf1f666 100644
--- a/mm/page_alloc.c
+++ b/mm/page_alloc.c
@@ -1583,7 +1583,7 @@ static void __meminit init_reserved_page(unsigned long pfn)
 	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);