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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 alignmentSYNOPSIS¶
void blk_queue_dma_alignment(struct request_queue * q, int mask);
ARGUMENTS¶
struct request_queue * qthe 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 |