diff options
Diffstat (limited to 'mm/hmm.c')
| -rw-r--r-- | mm/hmm.c | 14 |
1 files changed, 5 insertions, 9 deletions
@@ -183,6 +183,7 @@ static inline unsigned long hmm_pfn_flags_order(unsigned long order) return order << HMM_PFN_ORDER_SHIFT; } +#ifdef CONFIG_TRANSPARENT_HUGEPAGE static inline unsigned long pmd_to_hmm_pfn_flags(struct hmm_range *range, pmd_t pmd) { @@ -193,7 +194,6 @@ static inline unsigned long pmd_to_hmm_pfn_flags(struct hmm_range *range, hmm_pfn_flags_order(PMD_SHIFT - PAGE_SHIFT); } -#ifdef CONFIG_TRANSPARENT_HUGEPAGE static int hmm_vma_handle_pmd(struct mm_walk *walk, unsigned long addr, unsigned long end, unsigned long hmm_pfns[], pmd_t pmd) @@ -302,13 +302,10 @@ static int hmm_vma_handle_pte(struct mm_walk *walk, unsigned long addr, goto fault; /* - * Bypass devmap pte such as DAX page when all pfn requested - * flags(pfn_req_flags) are fulfilled. * Since each architecture defines a struct page for the zero page, just * fall through and treat it like a normal page. */ if (!vm_normal_page(walk->vma, addr, pte) && - !pte_devmap(pte) && !is_zero_pfn(pte_pfn(pte))) { if (hmm_pte_need_fault(hmm_vma_walk, pfn_req_flags, 0)) { pte_unmap(ptep); @@ -363,7 +360,7 @@ again: return hmm_pfns_fill(start, end, range, HMM_PFN_ERROR); } - if (pmd_devmap(pmd) || pmd_trans_huge(pmd)) { + if (pmd_trans_huge(pmd)) { /* * No need to take pmd_lock here, even if some other thread * is splitting the huge pmd we will get that event through @@ -374,7 +371,7 @@ again: * values. */ pmd = pmdp_get_lockless(pmdp); - if (!pmd_devmap(pmd) && !pmd_trans_huge(pmd)) + if (!pmd_trans_huge(pmd)) goto again; return hmm_vma_handle_pmd(walk, addr, end, hmm_pfns, pmd); @@ -408,8 +405,7 @@ again: return 0; } -#if defined(CONFIG_ARCH_HAS_PTE_DEVMAP) && \ - defined(CONFIG_HAVE_ARCH_TRANSPARENT_HUGEPAGE_PUD) +#if defined(CONFIG_HAVE_ARCH_TRANSPARENT_HUGEPAGE_PUD) static inline unsigned long pud_to_hmm_pfn_flags(struct hmm_range *range, pud_t pud) { @@ -441,7 +437,7 @@ static int hmm_vma_walk_pud(pud_t *pudp, unsigned long start, unsigned long end, return hmm_vma_walk_hole(start, end, -1, walk); } - if (pud_leaf(pud) && pud_devmap(pud)) { + if (pud_leaf(pud)) { unsigned long i, npages, pfn; unsigned int required_fault; unsigned long *hmm_pfns; |