Messages in this thread Patch in this message | | | From | peterx@redhat ... | Subject | [PATCH 05/13] mm/sparc: Change pXd_huge() behavior to exclude swap entries | Date | Wed, 13 Mar 2024 17:47:11 -0400 |
| |
From: Peter Xu <peterx@redhat.com>
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@davemloft.net> Cc: Andreas Larsson <andreas@gaisler.com> Cc: sparclinux@vger.kernel.org Signed-off-by: Peter Xu <peterx@redhat.com> --- 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
| |