tag	line	file	source code
d_subtype	37	arch/alpha/boot/tools/mkbb.c	u16  d_type, d_subtype;
d_subtype	407	drivers/block/genhd.c	u16 d_type,d_subtype;
d_subtype	82	include/linux/genhd.h	__s16  d_subtype;    /* controller/d_type specific */