diff --git a/[refs] b/[refs]
index 6e1d3b1ee90b..06537270e977 100644
--- a/[refs]
+++ b/[refs]
@@ -1,2 +1,2 @@
 ---
-refs/heads/master: a268cefebceeb2046dfdfa301f041c2468536852
+refs/heads/master: 0e1dfc66b6ec94984a4778132147a8aa36461d58
diff --git a/trunk/fs/buffer.c b/trunk/fs/buffer.c
index 3660dcb97591..71649ef9b658 100644
--- a/trunk/fs/buffer.c
+++ b/trunk/fs/buffer.c
@@ -470,13 +470,18 @@ __find_get_block_slow(struct block_device *bdev, sector_t block)
    pass does the actual I/O. */
 void invalidate_bdev(struct block_device *bdev, int destroy_dirty_buffers)
 {
+	struct address_space *mapping = bdev->bd_inode->i_mapping;
+
+	if (mapping->nrpages == 0)
+		return;
+
 	invalidate_bh_lrus();
 	/*
 	 * FIXME: what about destroy_dirty_buffers?
 	 * We really want to use invalidate_inode_pages2() for
 	 * that, but not until that's cleaned up.
 	 */
-	invalidate_inode_pages(bdev->bd_inode->i_mapping);
+	invalidate_inode_pages(mapping);
 }
 
 /*