blk_queue_alignment_offset (9) Linux Manual Page
blk_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.