diff options
Diffstat (limited to 'mm/hugetlb.c')
| -rw-r--r-- | mm/hugetlb.c | 41 |
1 files changed, 24 insertions, 17 deletions
diff --git a/mm/hugetlb.c b/mm/hugetlb.c index bfcf153bc829..dae27ba3be2c 100644 --- a/mm/hugetlb.c +++ b/mm/hugetlb.c @@ -24,7 +24,7 @@ #include <asm/page.h> #include <asm/pgtable.h> -#include <asm/io.h> +#include <linux/io.h> #include <linux/hugetlb.h> #include <linux/node.h> @@ -62,10 +62,10 @@ static DEFINE_SPINLOCK(hugetlb_lock); * must either hold the mmap_sem for write, or the mmap_sem for read and * the hugetlb_instantiation mutex: * - * down_write(&mm->mmap_sem); + * down_write(&mm->mmap_sem); * or - * down_read(&mm->mmap_sem); - * mutex_lock(&hugetlb_instantiation_mutex); + * down_read(&mm->mmap_sem); + * mutex_lock(&hugetlb_instantiation_mutex); */ struct file_region { struct list_head link; @@ -503,9 +503,10 @@ static void update_and_free_page(struct hstate *h, struct page *page) h->nr_huge_pages--; h->nr_huge_pages_node[page_to_nid(page)]--; for (i = 0; i < pages_per_huge_page(h); i++) { - page[i].flags &= ~(1 << PG_locked | 1 << PG_error | 1 << PG_referenced | - 1 << PG_dirty | 1 << PG_active | 1 << PG_reserved | - 1 << PG_private | 1<< PG_writeback); + page[i].flags &= ~(1 << PG_locked | 1 << PG_error | + 1 << PG_referenced | 1 << PG_dirty | + 1 << PG_active | 1 << PG_reserved | + 1 << PG_private | 1 << PG_writeback); } set_compound_page_dtor(page, NULL); set_page_refcounted(page); @@ -591,7 +592,6 @@ int PageHuge(struct page *page) return dtor == free_huge_page; } - EXPORT_SYMBOL_GPL(PageHuge); static struct page *alloc_fresh_huge_page_node(struct hstate *h, int nid) @@ -1105,8 +1105,16 @@ static void __init gather_bootmem_prealloc(void) struct huge_bootmem_page *m; list_for_each_entry(m, &huge_boot_pages, list) { - struct page *page = virt_to_page(m); struct hstate *h = m->hstate; + struct page *page; + +#ifdef CONFIG_HIGHMEM + page = pfn_to_page(m->phys >> PAGE_SHIFT); + free_bootmem_late((unsigned long)m, + sizeof(struct huge_bootmem_page)); +#else + page = virt_to_page(m); +#endif __ClearPageReserved(page); WARN_ON(page_count(page) != 1); prep_compound_huge_page(page, h->order); @@ -2124,9 +2132,8 @@ static void set_huge_ptep_writable(struct vm_area_struct *vma, pte_t entry; entry = pte_mkwrite(pte_mkdirty(huge_ptep_get(ptep))); - if (huge_ptep_set_access_flags(vma, address, ptep, entry, 1)) { + if (huge_ptep_set_access_flags(vma, address, ptep, entry, 1)) update_mmu_cache(vma, address, ptep); - } } @@ -2181,9 +2188,9 @@ static int is_hugetlb_entry_migration(pte_t pte) if (huge_pte_none(pte) || pte_present(pte)) return 0; swp = pte_to_swp_entry(pte); - if (non_swap_entry(swp) && is_migration_entry(swp)) { + if (non_swap_entry(swp) && is_migration_entry(swp)) return 1; - } else + else return 0; } @@ -2194,9 +2201,9 @@ static int is_hugetlb_entry_hwpoisoned(pte_t pte) if (huge_pte_none(pte) || pte_present(pte)) return 0; swp = pte_to_swp_entry(pte); - if (non_swap_entry(swp) && is_hwpoison_entry(swp)) { + if (non_swap_entry(swp) && is_hwpoison_entry(swp)) return 1; - } else + else return 0; } @@ -2559,7 +2566,7 @@ retry: * So we need to block hugepage fault by PG_hwpoison bit check. */ if (unlikely(PageHWPoison(page))) { - ret = VM_FAULT_HWPOISON | + ret = VM_FAULT_HWPOISON | VM_FAULT_SET_HINDEX(h - hstates); goto backout_unlocked; } @@ -2627,7 +2634,7 @@ int hugetlb_fault(struct mm_struct *mm, struct vm_area_struct *vma, migration_entry_wait(mm, (pmd_t *)ptep, address); return 0; } else if (unlikely(is_hugetlb_entry_hwpoisoned(entry))) - return VM_FAULT_HWPOISON_LARGE | + return VM_FAULT_HWPOISON_LARGE | VM_FAULT_SET_HINDEX(h - hstates); } |