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| author | Matthew Wilcox (Oracle) <willy@infradead.org> | 2024-03-26 21:28:23 +0100 |
|---|---|---|
| committer | Andrew Morton <akpm@linux-foundation.org> | 2024-04-26 05:56:19 +0200 |
| commit | e06d03d5590ae1c257b8aa2cfbfe6765e0755c14 (patch) | |
| tree | e1300c67bcfaff343e73595ccb961ea082af64a3 /mm/userfaultfd.c | |
| parent | mm: add is_huge_zero_folio() (diff) | |
| download | linux-e06d03d5590ae1c257b8aa2cfbfe6765e0755c14.tar.xz linux-e06d03d5590ae1c257b8aa2cfbfe6765e0755c14.zip | |
mm: add pmd_folio()
Convert directly from a pmd to a folio without going through another
representation first. For now this is just a slightly shorter way to
write it, but it might end up being more efficient later.
Link: https://lkml.kernel.org/r/20240326202833.523759-4-willy@infradead.org
Signed-off-by: Matthew Wilcox (Oracle) <willy@infradead.org>
Reviewed-by: David Hildenbrand <david@redhat.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Diffstat (limited to 'mm/userfaultfd.c')
| -rw-r--r-- | mm/userfaultfd.c | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/mm/userfaultfd.c b/mm/userfaultfd.c index a0ec14553fbe..b70618e8dcd2 100644 --- a/mm/userfaultfd.c +++ b/mm/userfaultfd.c @@ -1662,7 +1662,7 @@ ssize_t move_pages(struct userfaultfd_ctx *ctx, unsigned long dst_start, /* Check if we can move the pmd without splitting it. */ if (move_splits_huge_pmd(dst_addr, src_addr, src_start + len) || !pmd_none(dst_pmdval)) { - struct folio *folio = pfn_folio(pmd_pfn(*src_pmd)); + struct folio *folio = pmd_folio(*src_pmd); if (!folio || (!is_huge_zero_folio(folio) && !PageAnonExclusive(&folio->page))) { |