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BLK_QUEUE_DMA_ALIGNM(9) Block Devices BLK_QUEUE_DMA_ALIGNM(9)

NAME

blk_queue_dma_alignment - set dma length and memory alignment

SYNOPSIS

void blk_queue_dma_alignment(struct request_queue * q, int mask);

ARGUMENTS

struct request_queue * q
the request queue for the device

int mask

alignment mask

DESCRIPTION

set required memory and length alignment for direct dma transactions. this is used when building direct io requests for the queue.

COPYRIGHT

July 2017 Kernel Hackers Manual 4.11