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s390: use pfn_swap_entry_folio() in ptep_zap_swap_entry()

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Call pfn_swap_entry_folio() in ptep_zap_swap_entry() as preparation for
converting mm counter functions to take a folio.

Link: https://lkml.kernel.org/r/20240111152429.3374566-5-willy@infradead.org
Signed-off-by: Kefeng Wang <wangkefeng.wang@huawei.com>
Signed-off-by: Matthew Wilcox (Oracle) <willy@infradead.org>
Cc: David Hildenbrand <david@redhat.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
This commit is contained in:
Kefeng Wang 2024-01-11 15:24:23 +00:00 committed by Andrew Morton
parent f2d571b0b2
commit 0601ac883a
1 changed files with 2 additions and 2 deletions
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4
arch/s390/mm/pgtable.c
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@ -721,9 +721,9 @@ static void ptep_zap_swap_entry(struct mm_struct *mm, swp_entry_t entry)
if (!non_swap_entry(entry))
dec_mm_counter(mm, MM_SWAPENTS);
else if (is_migration_entry(entry)) {
struct page *page = pfn_swap_entry_to_page(entry);
struct folio *folio = pfn_swap_entry_folio(entry);
dec_mm_counter(mm, mm_counter(page));
dec_mm_counter(mm, mm_counter(&folio->page));
}
free_swap_and_cache(entry);
}