Merge git://git.kernel.org/pub/scm/linux/kernel/git/rusty/linux-2.6-for-linus

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

diff --git a/include/linux/memory.h b/include/linux/memory.h
index dc4081b6f161e3f697c3280bbf9547aed9bfbea1..33f0ff0cf63483cc776d4878d1ec24f1ab45e437 100644 (file)
--- a/include/linux/memory.h
+++ b/include/linux/memory.h
@@ -41,23 +41,20 @@ struct memory_block {
 #define        MEM_ONLINE              (1<<0) /* exposed to userspace */
 #define        MEM_GOING_OFFLINE       (1<<1) /* exposed to userspace */
 #define        MEM_OFFLINE             (1<<2) /* exposed to userspace */
+#define        MEM_GOING_ONLINE        (1<<3)
+#define        MEM_CANCEL_ONLINE       (1<<4)
+#define        MEM_CANCEL_OFFLINE      (1<<5)
 
-/*
- * All of these states are currently kernel-internal for notifying
- * kernel components and architectures.
- *
- * For MEM_MAPPING_INVALID, all notifier chains with priority >0
- * are called before pfn_to_page() becomes invalid.  The priority=0
- * entry is reserved for the function that actually makes
- * pfn_to_page() stop working.  Any notifiers that want to be called
- * after that should have priority <0.
- */
-#define        MEM_MAPPING_INVALID     (1<<3)
+struct memory_notify {
+       unsigned long start_pfn;
+       unsigned long nr_pages;
+       int status_change_nid;
+};
 
 struct notifier_block;
 struct mem_section;
 
-#ifndef CONFIG_MEMORY_HOTPLUG
+#ifndef CONFIG_MEMORY_HOTPLUG_SPARSE
 static inline int memory_dev_init(void)
 {
        return 0;
@@ -69,28 +66,31 @@ static inline int register_memory_notifier(struct notifier_block *nb)
 static inline void unregister_memory_notifier(struct notifier_block *nb)
 {
 }
+static inline int memory_notify(unsigned long val, void *v)
+{
+       return 0;
+}
 #else
-extern int register_memory(struct memory_block *, struct mem_section *section, struct node *);
+extern int register_memory_notifier(struct notifier_block *nb);
+extern void unregister_memory_notifier(struct notifier_block *nb);
 extern int register_new_memory(struct mem_section *);
 extern int unregister_memory_section(struct mem_section *);
 extern int memory_dev_init(void);
-extern int register_memory_notifier(struct notifier_block *nb);
-extern void unregister_memory_notifier(struct notifier_block *nb);
-
+extern int remove_memory_block(unsigned long, struct mem_section *, int);
+extern int memory_notify(unsigned long val, void *v);
 #define CONFIG_MEM_BLOCK_SIZE  (PAGES_PER_SECTION<<PAGE_SHIFT)
 
-extern int invalidate_phys_mapping(unsigned long, unsigned long);
-struct notifier_block;
-
-extern int register_memory_notifier(struct notifier_block *nb);
-extern void unregister_memory_notifier(struct notifier_block *nb);
 
-#endif /* CONFIG_MEMORY_HOTPLUG */
+#endif /* CONFIG_MEMORY_HOTPLUG_SPARSE */
 
+#ifdef CONFIG_MEMORY_HOTPLUG
 #define hotplug_memory_notifier(fn, pri) {                     \
        static struct notifier_block fn##_mem_nb =              \
                { .notifier_call = fn, .priority = pri };       \
        register_memory_notifier(&fn##_mem_nb);                 \
 }
+#else
+#define hotplug_memory_notifier(fn, pri) do { } while (0)
+#endif
 
 #endif /* _LINUX_MEMORY_H_ */