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Message-ID: <20210123070538.5861-1-linmiaohe@huawei.com>
Date: Sat, 23 Jan 2021 02:05:38 -0500
From: Miaohe Lin <linmiaohe@...wei.com>
To: <akpm@...ux-foundation.org>
CC: <linux-mm@...ck.org>, <linux-kernel@...r.kernel.org>,
<linmiaohe@...wei.com>
Subject: [PATCH] mm/page_owner: Use helper function zone_end_pfn() to get end_pfn
Commit 108bcc96ef70 ("mm: add & use zone_end_pfn() and zone_spans_pfn()")
introduced the helper zone_end_pfn() to calculate the zone end pfn. But
pagetypeinfo_showmixedcount_print forgot to use it. And the initialization
of local variable pfn is duplicated, remove one.
Signed-off-by: Miaohe Lin <linmiaohe@...wei.com>
---
mm/page_owner.c | 4 ++--
1 file changed, 2 insertions(+), 2 deletions(-)
diff --git a/mm/page_owner.c b/mm/page_owner.c
index af464bb7fbe7..d15c7c4994f5 100644
--- a/mm/page_owner.c
+++ b/mm/page_owner.c
@@ -263,8 +263,8 @@ void pagetypeinfo_showmixedcount_print(struct seq_file *m,
struct page *page;
struct page_ext *page_ext;
struct page_owner *page_owner;
- unsigned long pfn = zone->zone_start_pfn, block_end_pfn;
- unsigned long end_pfn = pfn + zone->spanned_pages;
+ unsigned long pfn, block_end_pfn;
+ unsigned long end_pfn = zone_end_pfn(zone);
unsigned long count[MIGRATE_TYPES] = { 0, };
int pageblock_mt, page_mt;
int i;
--
2.19.1
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