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author | Matthew Wilcox (Oracle) <willy@infradead.org> | 2021-12-23 00:57:23 +0300 |
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committer | Matthew Wilcox (Oracle) <willy@infradead.org> | 2022-03-21 19:56:35 +0300 |
commit | 667ed1f7bb3b1c1ec2512e64cec04a07df7c5068 (patch) | |
tree | e3ee1ae1202db7ce2c2b89f06fc0adce78e8e89e /mm | |
parent | 09a1626effb89dddcde10c10f5e3c5e6f8b94136 (diff) | |
download | linux-667ed1f7bb3b1c1ec2512e64cec04a07df7c5068.tar.xz |
mm/gup: Convert gup_huge_pmd() to use a folio
Use the new folio-based APIs.
Signed-off-by: Matthew Wilcox (Oracle) <willy@infradead.org>
Reviewed-by: Christoph Hellwig <hch@lst.de>
Reviewed-by: John Hubbard <jhubbard@nvidia.com>
Reviewed-by: Jason Gunthorpe <jgg@nvidia.com>
Reviewed-by: William Kucharski <william.kucharski@oracle.com>
Diffstat (limited to 'mm')
-rw-r--r-- | mm/gup.c | 11 |
1 files changed, 6 insertions, 5 deletions
@@ -2489,7 +2489,8 @@ static int gup_huge_pmd(pmd_t orig, pmd_t *pmdp, unsigned long addr, unsigned long end, unsigned int flags, struct page **pages, int *nr) { - struct page *head, *page; + struct page *page; + struct folio *folio; int refs; if (!pmd_access_permitted(orig, flags & FOLL_WRITE)) @@ -2505,17 +2506,17 @@ static int gup_huge_pmd(pmd_t orig, pmd_t *pmdp, unsigned long addr, page = nth_page(pmd_page(orig), (addr & ~PMD_MASK) >> PAGE_SHIFT); refs = record_subpages(page, addr, end, pages + *nr); - head = try_grab_compound_head(pmd_page(orig), refs, flags); - if (!head) + folio = try_grab_folio(page, refs, flags); + if (!folio) return 0; if (unlikely(pmd_val(orig) != pmd_val(*pmdp))) { - put_compound_head(head, refs, flags); + gup_put_folio(folio, refs, flags); return 0; } *nr += refs; - SetPageReferenced(head); + folio_set_referenced(folio); return 1; } |