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mm/ksm: page_add_anon_rmap() -> folio_add_anon_rmap_pte()
Let's convert replace_page(). While at it, perform some folio conversion. Link: https://lkml.kernel.org/r/20231220224504.646757-19-david@redhat.com Signed-off-by: David Hildenbrand <david@redhat.com> Cc: Hugh Dickins <hughd@google.com> Cc: Matthew Wilcox (Oracle) <willy@infradead.org> Cc: Muchun Song <muchun.song@linux.dev> Cc: Muchun Song <songmuchun@bytedance.com> Cc: Peter Xu <peterx@redhat.com> Cc: Ryan Roberts <ryan.roberts@arm.com> Cc: Yin Fengwei <fengwei.yin@intel.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
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8
mm/ksm.c
8
mm/ksm.c
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@ -1369,6 +1369,7 @@ static int write_protect_page(struct vm_area_struct *vma, struct page *page,
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static int replace_page(struct vm_area_struct *vma, struct page *page,
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struct page *kpage, pte_t orig_pte)
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{
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struct folio *kfolio = page_folio(kpage);
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struct mm_struct *mm = vma->vm_mm;
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struct folio *folio;
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pmd_t *pmd;
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@ -1408,15 +1409,16 @@ static int replace_page(struct vm_area_struct *vma, struct page *page,
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goto out_mn;
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}
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VM_BUG_ON_PAGE(PageAnonExclusive(page), page);
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VM_BUG_ON_PAGE(PageAnon(kpage) && PageAnonExclusive(kpage), kpage);
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VM_BUG_ON_FOLIO(folio_test_anon(kfolio) && PageAnonExclusive(kpage),
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kfolio);
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/*
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* No need to check ksm_use_zero_pages here: we can only have a
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* zero_page here if ksm_use_zero_pages was enabled already.
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*/
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if (!is_zero_pfn(page_to_pfn(kpage))) {
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get_page(kpage);
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page_add_anon_rmap(kpage, vma, addr, RMAP_NONE);
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folio_get(kfolio);
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folio_add_anon_rmap_pte(kfolio, kpage, vma, addr, RMAP_NONE);
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newpte = mk_pte(kpage, vma->vm_page_prot);
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} else {
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/*
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