diff --git a/mm/migrate.c b/mm/migrate.c
index 7d2983f..89e5c3f 100644
--- a/mm/migrate.c
+++ b/mm/migrate.c
@@ -564,7 +564,7 @@
  *  == 0 - success
  */
 static int move_to_new_page(struct page *newpage, struct page *page,
-						int remap_swapcache)
+					int remap_swapcache, bool sync)
 {
 	struct address_space *mapping;
 	int rc;
@@ -586,18 +586,28 @@
 	mapping = page_mapping(page);
 	if (!mapping)
 		rc = migrate_page(mapping, newpage, page);
-	else if (mapping->a_ops->migratepage)
+	else {
 		/*
-		 * Most pages have a mapping and most filesystems
-		 * should provide a migration function. Anonymous
-		 * pages are part of swap space which also has its
-		 * own migration function. This is the most common
-		 * path for page migration.
+		 * Do not writeback pages if !sync and migratepage is
+		 * not pointing to migrate_page() which is nonblocking
+		 * (swapcache/tmpfs uses migratepage = migrate_page).
 		 */
-		rc = mapping->a_ops->migratepage(mapping,
-						newpage, page);
-	else
-		rc = fallback_migrate_page(mapping, newpage, page);
+		if (PageDirty(page) && !sync &&
+		    mapping->a_ops->migratepage != migrate_page)
+			rc = -EBUSY;
+		else if (mapping->a_ops->migratepage)
+			/*
+			 * Most pages have a mapping and most filesystems
+			 * should provide a migration function. Anonymous
+			 * pages are part of swap space which also has its
+			 * own migration function. This is the most common
+			 * path for page migration.
+			 */
+			rc = mapping->a_ops->migratepage(mapping,
+							newpage, page);
+		else
+			rc = fallback_migrate_page(mapping, newpage, page);
+	}
 
 	if (rc) {
 		newpage->mapping = NULL;
@@ -641,7 +651,7 @@
 	rc = -EAGAIN;
 
 	if (!trylock_page(page)) {
-		if (!force)
+		if (!force || !sync)
 			goto move_newpage;
 
 		/*
@@ -686,7 +696,15 @@
 	BUG_ON(charge);
 
 	if (PageWriteback(page)) {
-		if (!force || !sync)
+		/*
+		 * For !sync, there is no point retrying as the retry loop
+		 * is expected to be too short for PageWriteback to be cleared
+		 */
+		if (!sync) {
+			rc = -EBUSY;
+			goto uncharge;
+		}
+		if (!force)
 			goto uncharge;
 		wait_on_page_writeback(page);
 	}
@@ -757,7 +775,7 @@
 
 skip_unmap:
 	if (!page_mapped(page))
-		rc = move_to_new_page(newpage, page, remap_swapcache);
+		rc = move_to_new_page(newpage, page, remap_swapcache, sync);
 
 	if (rc && remap_swapcache)
 		remove_migration_ptes(page, page);
@@ -850,7 +868,7 @@
 	try_to_unmap(hpage, TTU_MIGRATION|TTU_IGNORE_MLOCK|TTU_IGNORE_ACCESS);
 
 	if (!page_mapped(hpage))
-		rc = move_to_new_page(new_hpage, hpage, 1);
+		rc = move_to_new_page(new_hpage, hpage, 1, sync);
 
 	if (rc)
 		remove_migration_ptes(hpage, hpage);
diff --git a/mm/page_alloc.c b/mm/page_alloc.c
index 426056a..6d0032b 100644
--- a/mm/page_alloc.c
+++ b/mm/page_alloc.c
@@ -2103,7 +2103,7 @@
 					sync_migration);
 	if (page)
 		goto got_pg;
-	sync_migration = true;
+	sync_migration = !(gfp_mask & __GFP_NO_KSWAPD);
 
 	/* Try direct reclaim and then allocating */
 	page = __alloc_pages_direct_reclaim(gfp_mask, order,