linux-kernel - [PATCH 4/6] mm/page_alloc.c: use helper function zone_spans

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Message-ID: <20210830141051.64090-5-linmiaohe@huawei.com>
Date:   Mon, 30 Aug 2021 22:10:49 +0800
From:   Miaohe Lin <linmiaohe@...wei.com>
To:     <akpm@...ux-foundation.org>
CC:     <vbabka@...e.cz>, <sfr@...b.auug.org.au>, <peterz@...radead.org>,
        <mgorman@...hsingularity.net>, <linux-mm@...ck.org>,
        <linux-kernel@...r.kernel.org>, <linmiaohe@...wei.com>
Subject: [PATCH 4/6] 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.

Signed-off-by: Miaohe Lin <linmiaohe@...wei.com>
---
 mm/page_alloc.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/mm/page_alloc.c b/mm/page_alloc.c
index b5edcfe112aa..7bb79e959ab4 100644
--- a/mm/page_alloc.c
+++ b/mm/page_alloc.c
@@ -1576,7 +1576,7 @@ 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);
-- 
2.23.0