diff options
Diffstat (limited to 'mm/memory.c')
-rw-r--r-- | mm/memory.c | 40 |
1 files changed, 0 insertions, 40 deletions
diff --git a/mm/memory.c b/mm/memory.c index d902d0e25edc..1b8ca160f1d0 100644 --- a/mm/memory.c +++ b/mm/memory.c | |||
@@ -2618,46 +2618,6 @@ int make_pages_present(unsigned long addr, unsigned long end) | |||
2618 | return ret == len ? 0 : -1; | 2618 | return ret == len ? 0 : -1; |
2619 | } | 2619 | } |
2620 | 2620 | ||
2621 | /* | ||
2622 | * Map a vmalloc()-space virtual address to the physical page. | ||
2623 | */ | ||
2624 | struct page * vmalloc_to_page(void * vmalloc_addr) | ||
2625 | { | ||
2626 | unsigned long addr = (unsigned long) vmalloc_addr; | ||
2627 | struct page *page = NULL; | ||
2628 | pgd_t *pgd = pgd_offset_k(addr); | ||
2629 | pud_t *pud; | ||
2630 | pmd_t *pmd; | ||
2631 | pte_t *ptep, pte; | ||
2632 | |||
2633 | if (!pgd_none(*pgd)) { | ||
2634 | pud = pud_offset(pgd, addr); | ||
2635 | if (!pud_none(*pud)) { | ||
2636 | pmd = pmd_offset(pud, addr); | ||
2637 | if (!pmd_none(*pmd)) { | ||
2638 | ptep = pte_offset_map(pmd, addr); | ||
2639 | pte = *ptep; | ||
2640 | if (pte_present(pte)) | ||
2641 | page = pte_page(pte); | ||
2642 | pte_unmap(ptep); | ||
2643 | } | ||
2644 | } | ||
2645 | } | ||
2646 | return page; | ||
2647 | } | ||
2648 | |||
2649 | EXPORT_SYMBOL(vmalloc_to_page); | ||
2650 | |||
2651 | /* | ||
2652 | * Map a vmalloc()-space virtual address to the physical page frame number. | ||
2653 | */ | ||
2654 | unsigned long vmalloc_to_pfn(void * vmalloc_addr) | ||
2655 | { | ||
2656 | return page_to_pfn(vmalloc_to_page(vmalloc_addr)); | ||
2657 | } | ||
2658 | |||
2659 | EXPORT_SYMBOL(vmalloc_to_pfn); | ||
2660 | |||
2661 | #if !defined(__HAVE_ARCH_GATE_AREA) | 2621 | #if !defined(__HAVE_ARCH_GATE_AREA) |
2662 | 2622 | ||
2663 | #if defined(AT_SYSINFO_EHDR) | 2623 | #if defined(AT_SYSINFO_EHDR) |