diff options
Diffstat (limited to 'arch/powerpc/mm/hugetlbpage.c')
| -rw-r--r-- | arch/powerpc/mm/hugetlbpage.c | 12 |
1 files changed, 10 insertions, 2 deletions
diff --git a/arch/powerpc/mm/hugetlbpage.c b/arch/powerpc/mm/hugetlbpage.c index 5ff4e07d920a..7e408bfc7948 100644 --- a/arch/powerpc/mm/hugetlbpage.c +++ b/arch/powerpc/mm/hugetlbpage.c @@ -714,6 +714,14 @@ follow_huge_pmd(struct mm_struct *mm, unsigned long address, return NULL; } +struct page * +follow_huge_pud(struct mm_struct *mm, unsigned long address, + pud_t *pud, int write) +{ + BUG(); + return NULL; +} + static unsigned long hugepte_addr_end(unsigned long addr, unsigned long end, unsigned long sz) { @@ -978,7 +986,7 @@ pte_t *find_linux_pte_or_hugepte(pgd_t *pgdir, unsigned long ea, unsigned *shift */ pdshift = PUD_SHIFT; pudp = pud_offset(&pgd, ea); - pud = ACCESS_ONCE(*pudp); + pud = READ_ONCE(*pudp); if (pud_none(pud)) return NULL; @@ -990,7 +998,7 @@ pte_t *find_linux_pte_or_hugepte(pgd_t *pgdir, unsigned long ea, unsigned *shift else { pdshift = PMD_SHIFT; pmdp = pmd_offset(&pud, ea); - pmd = ACCESS_ONCE(*pmdp); + pmd = READ_ONCE(*pmdp); /* * A hugepage collapse is captured by pmd_none, because * it mark the pmd none and do a hpte invalidate. |