BLK_QUEUE_ALIGNMENT_(9) Block Devices BLK_QUEUE_ALIGNMENT_(9)NAMEblk_queue_alignment_offset - set physical block alignment offset
SYNOPSIS
void blk_queue_alignment_offset(struct request_queue * q,
unsigned int offset);
ARGUMENTS
q
the request queue for the device
offset
alignment offset in bytes
DESCRIPTION
Some devices are naturally misaligned to compensate for things like the
legacy DOS partition table 63-sector offset. Low-level drivers should
call this function for devices whose first sector is not naturally
aligned.
COPYRIGHTKernel Hackers Manual 2.6. November 2013 BLK_QUEUE_ALIGNMENT_(9)