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mm: use pfn_swap_entry_folio() in __split_huge_pmd_locked()

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

Link: https://lkml.kernel.org/r/20240111152429.3374566-6-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 15:24:24 +00:00 committed by Andrew Morton
parent 0601ac883a
commit 439992ff46
1 changed files with 2 additions and 2 deletions
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4
mm/huge_memory.c
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@ -2442,7 +2442,7 @@ static void __split_huge_pmd_locked(struct vm_area_struct *vma, pmd_t *pmd,
swp_entry_t entry;
entry = pmd_to_swp_entry(old_pmd);
page = pfn_swap_entry_to_page(entry);
folio = pfn_swap_entry_folio(entry);
} else {
page = pmd_page(old_pmd);
folio = page_folio(page);
@ -2453,7 +2453,7 @@ static void __split_huge_pmd_locked(struct vm_area_struct *vma, pmd_t *pmd,
folio_remove_rmap_pmd(folio, page, vma);
folio_put(folio);
}
add_mm_counter(mm, mm_counter_file(page), -HPAGE_PMD_NR);
add_mm_counter(mm, mm_counter_file(&folio->page), -HPAGE_PMD_NR);
return;
}