diff options
Diffstat (limited to 'include/linux/mm.h')
| -rw-r--r-- | include/linux/mm.h | 38 |
1 files changed, 7 insertions, 31 deletions
diff --git a/include/linux/mm.h b/include/linux/mm.h index 866a3dbe5c75..c61ba10768ea 100644 --- a/include/linux/mm.h +++ b/include/linux/mm.h @@ -7,6 +7,7 @@ #include <linux/gfp.h> #include <linux/list.h> +#include <linux/mmdebug.h> #include <linux/mmzone.h> #include <linux/rbtree.h> #include <linux/prio_tree.h> @@ -73,7 +74,7 @@ extern unsigned int kobjsize(const void *objp); #endif /* - * vm_flags.. + * vm_flags in vm_area_struct, see mm_types.h. */ #define VM_READ 0x00000001 /* currently active flags */ #define VM_WRITE 0x00000002 @@ -219,12 +220,6 @@ struct inode; */ #include <linux/page-flags.h> -#ifdef CONFIG_DEBUG_VM -#define VM_BUG_ON(cond) BUG_ON(cond) -#else -#define VM_BUG_ON(condition) do { } while(0) -#endif - /* * Methods to modify the page usage count. * @@ -744,6 +739,8 @@ struct zap_details { struct page *vm_normal_page(struct vm_area_struct *vma, unsigned long addr, pte_t pte); +int zap_vma_ptes(struct vm_area_struct *vma, unsigned long address, + unsigned long size); unsigned long zap_page_range(struct vm_area_struct *vma, unsigned long address, unsigned long size, struct zap_details *); unsigned long unmap_vmas(struct mmu_gather **tlb, @@ -832,7 +829,6 @@ extern int mprotect_fixup(struct vm_area_struct *vma, struct vm_area_struct **pprev, unsigned long start, unsigned long end, unsigned long newflags); -#ifdef CONFIG_HAVE_GET_USER_PAGES_FAST /* * get_user_pages_fast provides equivalent functionality to get_user_pages, * operating on current and current->mm (force=0 and doesn't return any vmas). @@ -846,25 +842,6 @@ extern int mprotect_fixup(struct vm_area_struct *vma, int get_user_pages_fast(unsigned long start, int nr_pages, int write, struct page **pages); -#else -/* - * Should probably be moved to asm-generic, and architectures can include it if - * they don't implement their own get_user_pages_fast. - */ -#define get_user_pages_fast(start, nr_pages, write, pages) \ -({ \ - struct mm_struct *mm = current->mm; \ - int ret; \ - \ - down_read(&mm->mmap_sem); \ - ret = get_user_pages(current, mm, start, nr_pages, \ - write, 0, pages, NULL); \ - up_read(&mm->mmap_sem); \ - \ - ret; \ -}) -#endif - /* * A callback you can register to apply pressure to ageable caches. * @@ -937,7 +914,7 @@ static inline pmd_t *pmd_alloc(struct mm_struct *mm, pud_t *pud, unsigned long a } #endif /* CONFIG_MMU && !__ARCH_HAS_4LEVEL_HACK */ -#if NR_CPUS >= CONFIG_SPLIT_PTLOCK_CPUS +#if USE_SPLIT_PTLOCKS /* * We tuck a spinlock to guard each pagetable page into its struct page, * at page->private, with BUILD_BUG_ON to make sure that this will not @@ -950,14 +927,14 @@ static inline pmd_t *pmd_alloc(struct mm_struct *mm, pud_t *pud, unsigned long a } while (0) #define pte_lock_deinit(page) ((page)->mapping = NULL) #define pte_lockptr(mm, pmd) ({(void)(mm); __pte_lockptr(pmd_page(*(pmd)));}) -#else +#else /* !USE_SPLIT_PTLOCKS */ /* * We use mm->page_table_lock to guard all pagetable pages of the mm. */ #define pte_lock_init(page) do {} while (0) #define pte_lock_deinit(page) do {} while (0) #define pte_lockptr(mm, pmd) ({(void)(pmd); &(mm)->page_table_lock;}) -#endif /* NR_CPUS < CONFIG_SPLIT_PTLOCK_CPUS */ +#endif /* USE_SPLIT_PTLOCKS */ static inline void pgtable_page_ctor(struct page *page) { @@ -1041,7 +1018,6 @@ extern unsigned long absent_pages_in_range(unsigned long start_pfn, extern void get_pfn_range_for_nid(unsigned int nid, unsigned long *start_pfn, unsigned long *end_pfn); extern unsigned long find_min_pfn_with_active_regions(void); -extern unsigned long find_max_pfn_with_active_regions(void); extern void free_bootmem_with_active_regions(int nid, unsigned long max_low_pfn); typedef int (*work_fn_t)(unsigned long, unsigned long, void *); |