diff --git a/[refs] b/[refs]
index 6b8d9b62ef40..bd104bafa0f3 100644
--- a/[refs]
+++ b/[refs]
@@ -1,2 +1,2 @@
 ---
-refs/heads/master: f1ac2502e19c59e996242d406fcc60e4c563e8ce
+refs/heads/master: fa4b9074cd8428958c2adf9dc0c831f46e27c193
diff --git a/trunk/fs/buffer.c b/trunk/fs/buffer.c
index c9c266db0624..08e422d56996 100644
--- a/trunk/fs/buffer.c
+++ b/trunk/fs/buffer.c
@@ -275,6 +275,7 @@ void invalidate_bdev(struct block_device *bdev)
 		return;
 
 	invalidate_bh_lrus();
+	lru_add_drain_all();	/* make sure all lru add caches are flushed */
 	invalidate_mapping_pages(mapping, 0, -1);
 }
 EXPORT_SYMBOL(invalidate_bdev);