diff --git a/[refs] b/[refs]
index fc2bbe800979..f6b2777fe568 100644
--- a/[refs]
+++ b/[refs]
@@ -1,2 +1,2 @@
 ---
-refs/heads/master: 0a10da73e1fa6fb9b45f1166011ff3b04c27c010
+refs/heads/master: b3ff05690845911cc40387176f0bc5a7af9ef3ff
diff --git a/trunk/fs/ext4/extents.c b/trunk/fs/ext4/extents.c
index 797b63b59740..c2ac06cb2d46 100644
--- a/trunk/fs/ext4/extents.c
+++ b/trunk/fs/ext4/extents.c
@@ -3390,9 +3390,11 @@ ext4_ext_handle_uninitialized_extents(handle_t *handle, struct inode *inode,
 		 * that this IO needs to conversion to written when IO is
 		 * completed
 		 */
-		if (io && !(io->flag & EXT4_IO_END_UNWRITTEN)) {
-			io->flag = EXT4_IO_END_UNWRITTEN;
-			atomic_inc(&EXT4_I(inode)->i_aiodio_unwritten);
+		if (io) {
+			if (!(io->flag & EXT4_IO_END_UNWRITTEN)) {
+				io->flag = EXT4_IO_END_UNWRITTEN;
+				atomic_inc(&EXT4_I(inode)->i_aiodio_unwritten);
+			}
 		} else
 			ext4_set_inode_state(inode, EXT4_STATE_DIO_UNWRITTEN);
 		if (ext4_should_dioread_nolock(inode))
@@ -3946,9 +3948,11 @@ int ext4_ext_map_blocks(handle_t *handle, struct inode *inode,
 		 * that we need to perform conversion when IO is done.
 		 */
 		if ((flags & EXT4_GET_BLOCKS_PRE_IO)) {
-			if (io && !(io->flag & EXT4_IO_END_UNWRITTEN)) {
-				io->flag = EXT4_IO_END_UNWRITTEN;
-				atomic_inc(&EXT4_I(inode)->i_aiodio_unwritten);
+			if (io) {
+				if (!(io->flag & EXT4_IO_END_UNWRITTEN)) {
+					io->flag = EXT4_IO_END_UNWRITTEN;
+					atomic_inc(&EXT4_I(inode)->i_aiodio_unwritten);
+				}
 			} else
 				ext4_set_inode_state(inode,
 						     EXT4_STATE_DIO_UNWRITTEN);