[PATCH] page migration: handle freeing of pages in migrate_pages()

Do not leave pages on the lists passed to migrate_pages().  Seems that we will
not need any postprocessing of pages.  This will simplify the handling of
pages by the callers of migrate_pages().

Signed-off-by: Christoph Lameter <clameter@sgi.com>
Cc: Hugh Dickins <hugh@veritas.com>
Cc: Jes Sorensen <jes@trained-monkey.org>
Cc: KAMEZAWA Hiroyuki <kamezawa.hiroyu@jp.fujitsu.com>
Cc: Lee Schermerhorn <lee.schermerhorn@hp.com>
Cc: Andi Kleen <ak@muc.de>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>

1 files changed, 3 insertions, 4 deletions

diff --git a/include/linux/migrate.h b/include/linux/migrate.h
index 287c47b5e5df..83af25949fa9 100644
--- a/include/linux/migrate.h
+++ b/include/linux/migrate.h
@@ -8,8 +8,7 @@ extern int isolate_lru_page(struct page *p, struct list_head *pagelist);
 extern int putback_lru_pages(struct list_head *l);
 extern int migrate_page(struct address_space *,
                         struct page *, struct page *);
-extern int migrate_pages(struct list_head *l, struct list_head *t,
-                struct list_head *moved, struct list_head *failed);
+extern int migrate_pages(struct list_head *l, struct list_head *t);
 extern int migrate_pages_to(struct list_head *pagelist,
                         struct vm_area_struct *vma, int dest);
 extern int fail_migrate_page(struct address_space *,
@@ -22,8 +21,8 @@ extern int migrate_prep(void);
 static inline int isolate_lru_page(struct page *p, struct list_head *list)
                                         { return -ENOSYS; }
 static inline int putback_lru_pages(struct list_head *l) { return 0; }
-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(struct list_head *l, struct list_head *t)
+                                        { return -ENOSYS; }
 
 static inline int migrate_pages_to(struct list_head *pagelist,
                         struct vm_area_struct *vma, int dest) { return 0; }