Merge branch 'upstream-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jgarzi...

[pandora-kernel.git] / mm / migrate.c

diff --git a/mm/migrate.c b/mm/migrate.c
index 4afd6fe..4205b1d 100644 (file)
--- a/mm/migrate.c
+++ b/mm/migrate.c
@@ -40,7 +40,8 @@
 
 /*
  * migrate_prep() needs to be called before we start compiling a list of pages
- * to be migrated using isolate_lru_page().
+ * to be migrated using isolate_lru_page(). If scheduling work on other CPUs is
+ * undesirable, use migrate_prep_local()
  */
 int migrate_prep(void)
 {
@@ -55,6 +56,14 @@ int migrate_prep(void)
        return 0;
 }
 
+/* Do the necessary work of migrate_prep but not if it involves other CPUs */
+int migrate_prep_local(void)
+{
+       lru_add_drain();
+
+       return 0;
+}
+
 /*
  * Add isolated pages on the list back to the LRU under page lock
  * to avoid leaking evictable pages back onto unevictable list.
@@ -581,7 +590,7 @@ static int unmap_and_move(new_page_t get_new_page, unsigned long private,
        }
 
        /* charge against new page */
-       charge = mem_cgroup_prepare_migration(page, &mem);
+       charge = mem_cgroup_prepare_migration(page, newpage, &mem);
        if (charge == -ENOMEM) {
                rc = -ENOMEM;
                goto unlock;