block,fs: untangle fs.h and blk_types.h

Nothing in fs.h should require blk_types.h to be included.

Signed-off-by: Christoph Hellwig <hch@lst.de>
Signed-off-by: Jens Axboe <axboe@fb.com>
diff --git a/fs/udf/inode.c b/fs/udf/inode.c
index aad4640..0f3db71 100644
--- a/fs/udf/inode.c
+++ b/fs/udf/inode.c
@@ -38,6 +38,7 @@
 #include <linux/crc-itu-t.h>
 #include <linux/mpage.h>
 #include <linux/uio.h>
+#include <linux/bio.h>
 
 #include "udf_i.h"
 #include "udf_sb.h"