diff --git a/mm/mempolicy.c b/mm/mempolicy.c
index f11fdad..290fb5b 100644
--- a/mm/mempolicy.c
+++ b/mm/mempolicy.c
@@ -85,6 +85,7 @@
 #include <linux/seq_file.h>
 #include <linux/proc_fs.h>
 #include <linux/migrate.h>
+#include <linux/ksm.h>
 #include <linux/rmap.h>
 #include <linux/security.h>
 #include <linux/syscalls.h>
@@ -413,17 +414,11 @@
 		if (!page)
 			continue;
 		/*
-		 * The check for PageReserved here is important to avoid
-		 * handling zero pages and other pages that may have been
-		 * marked special by the system.
-		 *
-		 * If the PageReserved would not be checked here then f.e.
-		 * the location of the zero page could have an influence
-		 * on MPOL_MF_STRICT, zero pages would be counted for
-		 * the per node stats, and there would be useless attempts
-		 * to put zero pages on the migration list.
+		 * vm_normal_page() filters out zero pages, but there might
+		 * still be PageReserved pages to skip, perhaps in a VDSO.
+		 * And we cannot move PageKsm pages sensibly or safely yet.
 		 */
-		if (PageReserved(page))
+		if (PageReserved(page) || PageKsm(page))
 			continue;
 		nid = page_to_nid(page);
 		if (node_isset(nid, *nodes) == !!(flags & MPOL_MF_INVERT))
@@ -839,7 +834,7 @@
 			flags | MPOL_MF_DISCONTIG_OK, &pagelist);
 
 	if (!list_empty(&pagelist))
-		err = migrate_pages(&pagelist, new_node_page, dest);
+		err = migrate_pages(&pagelist, new_node_page, dest, 0);
 
 	return err;
 }
@@ -1056,7 +1051,7 @@
 
 		if (!list_empty(&pagelist))
 			nr_failed = migrate_pages(&pagelist, new_vma_page,
-						(unsigned long)vma);
+						(unsigned long)vma, 0);
 
 		if (!err && nr_failed && (flags & MPOL_MF_STRICT))
 			err = -EIO;