queue_dma_alignment

函数名称：queue_dma_alignment

函数原型：static inline int queue_dma_alignment(const struct request_queue *q)

返回类型：int

参数：

类型	参数	名称
const struct request_queue *	q

**调用者**
名称	描述
bio_map_user_iov	_map_user_iov - map user iovec into bio@q: the struct request_queue for the bio@iter: iovec iterator@gfp_mask: memory allocation flags Map the user space address into a bio suitable for io to a block* device. Returns an error pointer in case of error.
blk_rq_map_user_iov	lk_rq_map_user_iov - map user data to a request, for passthrough requests@q: request queue where request should be inserted@rq: request to map data to@map_data: pointer to the rq_map_data holding pages (if necessary)@iter: iovec iterator*@gfp_mask:
blk_rq_aligned

函数逻辑报告