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authorMatthew Wilcox (Oracle) <willy@infradead.org>2021-12-22 16:57:23 -0500
committerMatthew Wilcox (Oracle) <willy@infradead.org>2022-03-21 12:56:35 -0400
commit667ed1f7bb3b1c1ec2512e64cec04a07df7c5068 (patch)
treee3ee1ae1202db7ce2c2b89f06fc0adce78e8e89e /mm/gup.c
parent09a1626effb89dddcde10c10f5e3c5e6f8b94136 (diff)
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/gup.c')
-rw-r--r--mm/gup.c11
1 files changed, 6 insertions, 5 deletions
diff --git a/mm/gup.c b/mm/gup.c
index bd5b49a1bc13..15de59333c3d 100644
--- a/mm/gup.c
+++ b/mm/gup.c
@@ -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;
}