compat_blk_user_trace_setup  541 block/compat_ioctl.c #define BLKTRACESETUP32 _IOWR(0x12, 115, struct compat_blk_user_trace_setup)
compat_blk_user_trace_setup  546 block/compat_ioctl.c 	struct compat_blk_user_trace_setup cbuts;