BLK_TRACE_IOCTL(9) Block Devices BLK_TRACE_IOCTL(9)NAMEblk_trace_ioctl - handle the ioctls associated with tracingSYNOPSISint blk_trace_ioctl(struct block_device * bdev, unsigned cmd, char __user * arg);ARGUMENTSbdev the block device cmd the ioctl cmd arg the argument data, if anyCOPYRIGHTKernel Hackers Manual 2.6. July 2010 BLK_TRACE_IOCTL(9)