diff options
| author | David Hildenbrand <david@redhat.com> | 2023-12-20 23:44:32 +0100 |
|---|---|---|
| committer | Andrew Morton <akpm@linux-foundation.org> | 2023-12-29 11:58:49 -0800 |
| commit | ef37b2ea08ace7b5fbcd569d703be1903afd12f9 (patch) | |
| tree | 04cf173e5f973175a52694c5e212888f9d29b078 /mm/memory.c | |
| parent | 68f0320824fa59c5429cbc811e6c46e7a30ea32c (diff) | |
mm/memory: page_add_file_rmap() -> folio_add_file_rmap_[pte|pmd]()
Let's convert insert_page_into_pte_locked() and do_set_pmd(). While at
it, perform some folio conversion.
Link: https://lkml.kernel.org/r/20231220224504.646757-9-david@redhat.com
Signed-off-by: David Hildenbrand <david@redhat.com>
Reviewed-by: Yin Fengwei <fengwei.yin@intel.com>
Reviewed-by: Ryan Roberts <ryan.roberts@arm.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>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Diffstat (limited to 'mm/memory.c')
| -rw-r--r-- | mm/memory.c | 14 |
1 files changed, 8 insertions, 6 deletions
diff --git a/mm/memory.c b/mm/memory.c index 9b977b2cf893..0e5e069aaec4 100644 --- a/mm/memory.c +++ b/mm/memory.c @@ -1859,12 +1859,14 @@ static int validate_page_before_insert(struct page *page) static int insert_page_into_pte_locked(struct vm_area_struct *vma, pte_t *pte, unsigned long addr, struct page *page, pgprot_t prot) { + struct folio *folio = page_folio(page); + if (!pte_none(ptep_get(pte))) return -EBUSY; /* Ok, finally just insert the thing.. */ - get_page(page); + folio_get(folio); inc_mm_counter(vma->vm_mm, mm_counter_file(page)); - page_add_file_rmap(page, vma, false); + folio_add_file_rmap_pte(folio, page, vma); set_pte_at(vma->vm_mm, addr, pte, mk_pte(page, prot)); return 0; } @@ -4410,6 +4412,7 @@ static void deposit_prealloc_pte(struct vm_fault *vmf) vm_fault_t do_set_pmd(struct vm_fault *vmf, struct page *page) { + struct folio *folio = page_folio(page); struct vm_area_struct *vma = vmf->vma; bool write = vmf->flags & FAULT_FLAG_WRITE; unsigned long haddr = vmf->address & HPAGE_PMD_MASK; @@ -4419,8 +4422,7 @@ vm_fault_t do_set_pmd(struct vm_fault *vmf, struct page *page) if (!thp_vma_suitable_order(vma, haddr, PMD_ORDER)) return ret; - page = compound_head(page); - if (compound_order(page) != HPAGE_PMD_ORDER) + if (page != &folio->page || folio_order(folio) != HPAGE_PMD_ORDER) return ret; /* @@ -4429,7 +4431,7 @@ vm_fault_t do_set_pmd(struct vm_fault *vmf, struct page *page) * check. This kind of THP just can be PTE mapped. Access to * the corrupted subpage should trigger SIGBUS as expected. */ - if (unlikely(PageHasHWPoisoned(page))) + if (unlikely(folio_test_has_hwpoisoned(folio))) return ret; /* @@ -4453,7 +4455,7 @@ vm_fault_t do_set_pmd(struct vm_fault *vmf, struct page *page) entry = maybe_pmd_mkwrite(pmd_mkdirty(entry), vma); add_mm_counter(vma->vm_mm, mm_counter_file(page), HPAGE_PMD_NR); - page_add_file_rmap(page, vma, true); + folio_add_file_rmap_pmd(folio, page, vma); /* * deposit and withdraw with pmd lock held |