blk_queue_dma_pad(9)
NAME
blk_queue_dma_pad - set pad mask
SYNOPSIS
void blk_queue_dma_pad(struct request_queue * q, unsigned int mask);
ARGUMENTS
- q
- the request queue for the device
- mask
- pad mask
DESCRIPTION
Set pad mask. Direct IO requests are padded to the mask specified.
Appending pad buffer to a request modifies ->data_len such that it
includes the pad buffer. The original requested data length can be
obtained using blk_rq_raw_data_len.