+ mm-page_owner-use-helper-function-zone_end_pfn-to-get-end_pfn.patch added to -mm tree

+ mm-page_owner-use-helper-function-zone_end_pfn-to-get-end_pfn.patch added to -mm tree

[akpm]

The patch titled
     Subject: mm/page_owner: use helper function zone_end_pfn() to get end_pfn
has been added to the -mm tree.  Its filename is
     mm-page_owner-use-helper-function-zone_end_pfn-to-get-end_pfn.patch

This patch should soon appear at
    https://ozlabs.org/~akpm/mmots/broken-out/mm-page_owner-use-helper-function-zone_end_pfn-to-get-end_pfn.patch
and later at
    https://ozlabs.org/~akpm/mmotm/broken-out/mm-page_owner-use-helper-function-zone_end_pfn-to-get-end_pfn.patch

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------------------------------------------------------
From: Miaohe Lin <linmiaohe@huawei.com>
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@huawei.com
Signed-off-by: Miaohe Lin <linmiaohe@huawei.com>
Reviewed-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
---

 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;
_

Patches currently in -mm which might be from linmiaohe@huawei.com are

mm-page_owner-use-helper-function-zone_end_pfn-to-get-end_pfn.patch
mm-hugetlb-fix-potential-double-free-in-hugetlb_register_node-error-path.patch
mm-hugetlb-avoid-unnecessary-hugetlb_acct_memory-call.patch
mm-hugetlb-use-helper-huge_page_order-and-pages_per_huge_page.patch
mm-workingsetc-avoid-unnecessary-max_nodes-estimation-in-count_shadow_nodes.patch
z3fold-remove-unused-attribute-for-release_z3fold_page.patch
z3fold-simplify-the-zhdr-initialization-code-in-init_z3fold_page.patch
mm-compaction-remove-duplicated-vm_bug_on_page-pagelocked.patch
hugetlbfs-remove-useless-bug_oninode-in-hugetlbfs_setattr.patch
hugetlbfs-use-helper-macro-default_hstate-in-init_hugetlbfs_fs.patch
hugetlbfs-correct-obsolete-function-name-in-hugetlbfs_read_iter.patch
hugetlbfs-remove-meaningless-variable-avoid_reserve.patch
mm-rmap-correct-some-obsolete-comments-of-anon_vma.patch
mm-zsmallocc-convert-to-use-kmem_cache_zalloc-in-cache_alloc_zspage.patch