diff --git a/fs/ext4/inode.c b/fs/ext4/inode.c
index 88d57af..86dde06 100644
--- a/fs/ext4/inode.c
+++ b/fs/ext4/inode.c
@@ -2464,8 +2464,8 @@ static int mpage_map_and_submit_extent(handle_t *handle,
 			disksize = i_size;
 		if (disksize > EXT4_I(inode)->i_disksize)
 			EXT4_I(inode)->i_disksize = disksize;
-		err2 = ext4_mark_inode_dirty(handle, inode);
 		up_write(&EXT4_I(inode)->i_data_sem);
+		err2 = ext4_mark_inode_dirty(handle, inode);
 		if (err2)
 			ext4_error(inode->i_sb,
 				   "Failed to mark inode %lu dirty",