BLK_QUEUE_LOGICAL_BL(9) Block Devices BLK_QUEUE_LOGICAL_BL(9)
NAME blk_queue_logical_block_size - set logical block size for the queue
SYNOPSIS void blk_queue_logical_block_size(struct request_queue * q, unsigned short size);
ARGUMENTS q the request queue for the device
size the logical block size, in bytes
DESCRIPTION This should be set to the lowest possible block size that the storage device can address. The default of 512 covers most hardware.
COPYRIGHT Kernel Hackers Manual 2.6. January 2013 BLK_QUEUE_LOGICAL_BL(9)