1 files changed, 5 insertions, 21 deletions

diff --git a/include/linux/mm.h b/include/linux/mm.h
index 6e695eaab4ce..fa651609b65d 100644
--- a/include/linux/mm.h
+++ b/include/linux/mm.h
@@ -744,6 +744,8 @@ 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 +834,6 @@ 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 +847,6 @@ 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.
  *
@@ -1041,7 +1023,6 @@ 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 *);
@@ -1104,6 +1085,9 @@ extern struct vm_area_struct *copy_vma(struct vm_area_struct **,
         unsigned long addr, unsigned long len, pgoff_t pgoff);
 extern void exit_mmap(struct mm_struct *);
 
+extern int mm_take_all_locks(struct mm_struct *mm);
+extern void mm_drop_all_locks(struct mm_struct *mm);
+
 #ifdef CONFIG_PROC_FS
 /* From fs/proc/base.c. callers must _not_ hold the mm's exe_file_lock */
 extern void added_exe_file_vma(struct mm_struct *mm);