migrate_pages_to not defined ...

[Yinghai Lu]

please check the migrate)pages_to in migrate.h...
otherwise  I can not compile the kernel if i disable the swap in config.

YH


diff --git a/include/linux/migrate.h b/include/linux/migrate.h
--- a/include/linux/migrate.h
+++ b/include/linux/migrate.h
@@ -12,7 +12,7 @@ extern void migrate_page_copy(struct pag
 extern int migrate_page_remove_references(struct page *, struct page *, int);
 extern int migrate_pages(struct list_head *l, struct list_head *t,
                struct list_head *moved, struct list_head *failed);
-int migrate_pages_to(struct list_head *pagelist,
+extern int migrate_pages_to(struct list_head *pagelist,
                        struct vm_area_struct *vma, int dest);
 extern int fail_migrate_page(struct page *, struct page *);

@@ -26,6 +26,8 @@ static inline int putback_lru_pages(stru
 static inline int migrate_pages(struct list_head *l, struct list_head *t,
        struct list_head *moved, struct list_head *failed) { return -ENOSYS; }

+static inline int migrate_pages_to(struct list_head *pagelist,
+                        struct vm_area_struct *vma, int dest) {
return -ENOSYS; }
 static inline int migrate_prep(void) { return -ENOSYS; }

 /* Possible settings for the migrate_page() method in address_operations */
diff --git a/mm/migrate.c b/mm/migrate.c
--- a/mm/migrate.c
+++ b/mm/migrate.c
@@ -653,3 +653,4 @@ out:
                nr_pages++;
        return nr_pages;
 }
+EXPORT_SYMBOL(migrate_pages_to);
-
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