From: Miaohe Lin <linmiaohe@xxxxxxxxxx>
Subject: 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.
Link: https://lkml.kernel.org/r/20210123070538.5861-1-linmiaohe@xxxxxxxxxx
Signed-off-by: Miaohe Lin <linmiaohe@xxxxxxxxxx>
Reviewed-by: Andrew Morton <akpm@xxxxxxxxxxxxxxxxxxxx>
Reviewed-by: David Hildenbrand <david@xxxxxxxxxx>
Signed-off-by: Andrew Morton <akpm@xxxxxxxxxxxxxxxxxxxx>
---
mm/page_owner.c | 4 ++--
1 file changed, 2 insertions(+), 2 deletions(-)
--- a/mm/page_owner.c~mm-page_owner-use-helper-function-zone_end_pfn-to-get-end_pfn
+++ a/mm/page_owner.c
@@ -263,8 +263,8 @@ void pagetypeinfo_showmixedcount_print(s
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;
_
