[PATCH] Add EXPORT_UNUSED_SYMBOL and EXPORT_UNUSED_SYMBOL_GPL

[linux-2.6] / include / linux / mm.h

diff --git a/include/linux/mm.h b/include/linux/mm.h
index 6aa016f1d3ae05d4b29e2076431219283b4c689a..c41a1299b8cf354cc8b9d9677f328aa4bc8b8533 100644 (file)
--- a/include/linux/mm.h
+++ b/include/linux/mm.h
@@ -7,7 +7,6 @@
 
 #ifdef __KERNEL__
 
-#include <linux/config.h>
 #include <linux/gfp.h>
 #include <linux/list.h>
 #include <linux/mmzone.h>
@@ -146,7 +145,6 @@ extern unsigned int kobjsize(const void *objp);
 
 #define VM_GROWSDOWN   0x00000100      /* general info on the segment */
 #define VM_GROWSUP     0x00000200
-#define VM_SHM         0x00000000      /* Means nothing: delete it later */
 #define VM_PFNMAP      0x00000400      /* Page-ranges managed without "struct page", just pure PFN */
 #define VM_DENYWRITE   0x00000800      /* ETXTBSY on write attempts.. */
 
@@ -200,10 +198,16 @@ struct vm_operations_struct {
        void (*close)(struct vm_area_struct * area);
        struct page * (*nopage)(struct vm_area_struct * area, unsigned long address, int *type);
        int (*populate)(struct vm_area_struct * area, unsigned long address, unsigned long len, pgprot_t prot, unsigned long pgoff, int nonblock);
+
+       /* notification that a previously read-only page is about to become
+        * writable, if an error is returned it will cause a SIGBUS */
+       int (*page_mkwrite)(struct vm_area_struct *vma, struct page *page);
 #ifdef CONFIG_NUMA
        int (*set_policy)(struct vm_area_struct *vma, struct mempolicy *new);
        struct mempolicy *(*get_policy)(struct vm_area_struct *vma,
                                        unsigned long addr);
+       int (*migrate)(struct vm_area_struct *vma, const nodemask_t *from,
+               const nodemask_t *to, unsigned long flags);
 #endif
 };
 
@@ -229,10 +233,9 @@ struct page {
                unsigned long private;          /* Mapping-private opaque data:
                                                 * usually used for buffer_heads
                                                 * if PagePrivate set; used for
-                                                * swp_entry_t if PageSwapCache.
-                                                * When page is free, this
+                                                * swp_entry_t if PageSwapCache;
                                                 * indicates order in the buddy
-                                                * system.
+                                                * system if PG_buddy is set.
                                                 */
                struct address_space *mapping;  /* If low bit clear, points to
                                                 * inode address_space, or NULL.
@@ -467,10 +470,13 @@ static inline unsigned long page_zonenum(struct page *page)
 struct zone;
 extern struct zone *zone_table[];
 
+static inline int page_zone_id(struct page *page)
+{
+       return (page->flags >> ZONETABLE_PGSHIFT) & ZONETABLE_MASK;
+}
 static inline struct zone *page_zone(struct page *page)
 {
-       return zone_table[(page->flags >> ZONETABLE_PGSHIFT) &
-                       ZONETABLE_MASK];
+       return zone_table[page_zone_id(page)];
 }
 
 static inline unsigned long page_to_nid(struct page *page)
@@ -1024,13 +1030,20 @@ static inline void vm_stat_account(struct mm_struct *mm,
 }
 #endif /* CONFIG_PROC_FS */
 
+static inline void
+debug_check_no_locks_freed(const void *from, unsigned long len)
+{
+       mutex_debug_check_no_locks_freed(from, len);
+       rt_mutex_debug_check_no_locks_freed(from, len);
+}
+
 #ifndef CONFIG_DEBUG_PAGEALLOC
 static inline void
 kernel_map_pages(struct page *page, int numpages, int enable)
 {
        if (!PageHighMem(page) && !enable)
-               mutex_debug_check_no_locks_freed(page_address(page),
-                                                numpages * PAGE_SIZE);
+               debug_check_no_locks_freed(page_address(page),
+                                          numpages * PAGE_SIZE);
 }
 #endif
 
@@ -1059,5 +1072,7 @@ void drop_slab(void);
 extern int randomize_va_space;
 #endif
 
+const char *arch_vma_name(struct vm_area_struct *vma);
+
 #endif /* __KERNEL__ */
 #endif /* _LINUX_MM_H */