Pull bugzilla-7570 into release branch

[linux-2.6-omap-h63xx.git] / include / linux / mm.h

diff --git a/include/linux/mm.h b/include/linux/mm.h
index a17b147c61e74853e51268c3eaf144aee8c37006..60e0e4a592d29fd28a62053b5cabde4c1f285673 100644 (file)
--- a/include/linux/mm.h
+++ b/include/linux/mm.h
@@ -168,6 +168,7 @@ extern unsigned int kobjsize(const void *objp);
 #define VM_NONLINEAR   0x00800000      /* Is non-linear (remap_file_pages) */
 #define VM_MAPPED_COPY 0x01000000      /* T if mapped copy of data (nommu mmap) */
 #define VM_INSERTPAGE  0x02000000      /* The vma has had "vm_insert_page()" done on it */
+#define VM_ALWAYSDUMP  0x04000000      /* Always include in core dumps */
 
 #ifndef VM_STACK_DEFAULT_FLAGS         /* arch can override this */
 #define VM_STACK_DEFAULT_FLAGS VM_DATA_DEFAULT_FLAGS
@@ -436,15 +437,15 @@ static inline compound_page_dtor *get_compound_page_dtor(struct page *page)
 /* NODE:ZONE or SECTION:ZONE is used to ID a zone for the buddy allcator */
 #ifdef NODE_NOT_IN_PAGEFLAGS
 #define ZONEID_SHIFT           (SECTIONS_SHIFT + ZONES_SHIFT)
+#define ZONEID_PGOFF           ((SECTIONS_PGOFF < ZONES_PGOFF)? \
+                                               SECTIONS_PGOFF : ZONES_PGOFF)
 #else
 #define ZONEID_SHIFT           (NODES_SHIFT + ZONES_SHIFT)
+#define ZONEID_PGOFF           ((NODES_PGOFF < ZONES_PGOFF)? \
+                                               NODES_PGOFF : ZONES_PGOFF)
 #endif
 
-#if ZONES_WIDTH > 0
-#define ZONEID_PGSHIFT         ZONES_PGSHIFT
-#else
-#define ZONEID_PGSHIFT         NODES_PGOFF
-#endif
+#define ZONEID_PGSHIFT         (ZONEID_PGOFF * (ZONEID_SHIFT != 0))
 
 #if SECTIONS_WIDTH+NODES_WIDTH+ZONES_WIDTH > FLAGS_RESERVED
 #error SECTIONS_WIDTH+NODES_WIDTH+ZONES_WIDTH > FLAGS_RESERVED
@@ -470,7 +471,6 @@ static inline enum zone_type page_zonenum(struct page *page)
  */
 static inline int page_zone_id(struct page *page)
 {
-       BUILD_BUG_ON(ZONEID_PGSHIFT == 0 && ZONEID_MASK);
        return (page->flags >> ZONEID_PGSHIFT) & ZONEID_MASK;
 }
 
@@ -637,6 +637,7 @@ static inline int page_mapped(struct page *page)
  */
 #define NOPFN_SIGBUS   ((unsigned long) -1)
 #define NOPFN_OOM      ((unsigned long) -2)
+#define NOPFN_REFAULT  ((unsigned long) -3)
 
 /*
  * Different kinds of faults, as returned by handle_mm_fault().
@@ -659,15 +660,11 @@ static inline int page_mapped(struct page *page)
 extern void show_free_areas(void);
 
 #ifdef CONFIG_SHMEM
-struct page *shmem_nopage(struct vm_area_struct *vma,
-                       unsigned long address, int *type);
 int shmem_set_policy(struct vm_area_struct *vma, struct mempolicy *new);
 struct mempolicy *shmem_get_policy(struct vm_area_struct *vma,
                                        unsigned long addr);
 int shmem_lock(struct file *file, int lock, struct user_struct *user);
 #else
-#define shmem_nopage filemap_nopage
-
 static inline int shmem_lock(struct file *file, int lock,
                             struct user_struct *user)
 {
@@ -687,7 +684,6 @@ static inline struct mempolicy *shmem_get_policy(struct vm_area_struct *vma,
 }
 #endif
 struct file *shmem_file_setup(char *name, loff_t size, unsigned long flags);
-extern int shmem_mmap(struct file *file, struct vm_area_struct *vma);
 
 int shmem_zero_setup(struct vm_area_struct *);
 
@@ -785,6 +781,7 @@ extern int try_to_release_page(struct page * page, gfp_t gfp_mask);
 extern void do_invalidatepage(struct page *page, unsigned long offset);
 
 int __set_page_dirty_nobuffers(struct page *page);
+int __set_page_dirty_no_writeback(struct page *page);
 int redirty_page_for_writepage(struct writeback_control *wbc,
                                struct page *page);
 int FASTCALL(set_page_dirty(struct page *page));
@@ -978,7 +975,8 @@ extern int early_pfn_to_nid(unsigned long pfn);
 #endif /* CONFIG_HAVE_ARCH_EARLY_PFN_TO_NID */
 #endif /* CONFIG_ARCH_POPULATES_NODE_MAP */
 extern void set_dma_reserve(unsigned long new_dma_reserve);
-extern void memmap_init_zone(unsigned long, int, unsigned long, unsigned long);
+extern void memmap_init_zone(unsigned long, int, unsigned long,
+                               unsigned long, enum memmap_context);
 extern void setup_per_zone_pages_min(void);
 extern void mem_init(void);
 extern void show_mem(void);
@@ -1028,6 +1026,9 @@ 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 may_expand_vm(struct mm_struct *mm, unsigned long npages);
+extern int install_special_mapping(struct mm_struct *mm,
+                                  unsigned long addr, unsigned long len,
+                                  unsigned long flags, struct page **pages);
 
 extern unsigned long get_unmapped_area(struct file *, unsigned long, unsigned long, unsigned long, unsigned long);
 
@@ -1119,6 +1120,8 @@ unsigned long vmalloc_to_pfn(void *addr);
 int remap_pfn_range(struct vm_area_struct *, unsigned long addr,
                        unsigned long pfn, unsigned long size, pgprot_t);
 int vm_insert_page(struct vm_area_struct *, unsigned long addr, struct page *);
+int vm_insert_pfn(struct vm_area_struct *vma, unsigned long addr,
+                       unsigned long pfn);
 
 struct page *follow_page(struct vm_area_struct *, unsigned long address,
                        unsigned int foll_flags);