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-rw-r--r--include/linux/migrate.h4
1 files changed, 3 insertions, 1 deletions
diff --git a/include/linux/migrate.h b/include/linux/migrate.h
index ae8d475a9385..fa76b516fa47 100644
--- a/include/linux/migrate.h
+++ b/include/linux/migrate.h
@@ -37,7 +37,7 @@ extern int migrate_page(struct address_space *,
struct page *, struct page *, enum migrate_mode);
extern int migrate_pages(struct list_head *l, new_page_t new, free_page_t free,
unsigned long private, enum migrate_mode mode, int reason);
-extern bool isolate_movable_page(struct page *page, isolate_mode_t mode);
+extern int isolate_movable_page(struct page *page, isolate_mode_t mode);
extern void putback_movable_page(struct page *page);
extern int migrate_prep(void);
@@ -56,6 +56,8 @@ static inline int migrate_pages(struct list_head *l, new_page_t new,
free_page_t free, unsigned long private, enum migrate_mode mode,
int reason)
{ return -ENOSYS; }
+static inline int isolate_movable_page(struct page *page, isolate_mode_t mode)
+ { return -EBUSY; }
static inline int migrate_prep(void) { return -ENOSYS; }
static inline int migrate_prep_local(void) { return -ENOSYS; }