From: Peter Xu <peterx@xxxxxxxxxx>
Please refer to the previous patch on the reasoning for x86. Now sparc is
the only architecture that will allow swap entries to be reported as
pXd_huge(). After this patch, all architectures should forbid swap entries
in pXd_huge().
Cc: David S. Miller <davem@xxxxxxxxxxxxx>
Cc: Andreas Larsson <andreas@xxxxxxxxxxx>
Cc: sparclinux@xxxxxxxxxxxxxxx
Signed-off-by: Peter Xu <peterx@xxxxxxxxxx>
---
arch/sparc/mm/hugetlbpage.c | 6 ++----
1 file changed, 2 insertions(+), 4 deletions(-)
diff --git a/arch/sparc/mm/hugetlbpage.c b/arch/sparc/mm/hugetlbpage.c
index b432500c13a5..d31c2cec35c9 100644
--- a/arch/sparc/mm/hugetlbpage.c
+++ b/arch/sparc/mm/hugetlbpage.c
@@ -409,14 +409,12 @@ pte_t huge_ptep_get_and_clear(struct mm_struct *mm, unsigned long addr,
int pmd_huge(pmd_t pmd)
{
- return !pmd_none(pmd) &&
- (pmd_val(pmd) & (_PAGE_VALID|_PAGE_PMD_HUGE)) != _PAGE_VALID;
+ return pmd_leaf(pmd);;
}
int pud_huge(pud_t pud)
{
- return !pud_none(pud) &&
- (pud_val(pud) & (_PAGE_VALID|_PAGE_PUD_HUGE)) != _PAGE_VALID;
+ return pud_leaf(pud);
}
static void hugetlb_free_pte_range(struct mmu_gather *tlb, pmd_t *pmd,
--
2.44.0
