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mm: add pmd_folio()

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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>
This commit is contained in:
Matthew Wilcox (Oracle)
2024-03-26 20:28:23 +00:00
committed by Andrew Morton
parent 5beaee54a3
commit e06d03d559
6 changed files with 9 additions and 7 deletions
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2
mm/mlock.c
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@@ -378,7 +378,7 @@ static int mlock_pte_range(pmd_t *pmd, unsigned long addr,
goto out;
if (is_huge_zero_pmd(*pmd))
goto out;
folio = page_folio(pmd_page(*pmd));
folio = pmd_folio(*pmd);
if (vma->vm_flags & VM_LOCKED)
mlock_folio(folio);
else