函数逻辑报告

Linux Kernel

v5.5.9

Brick Technologies Co., Ltd

Source Code:block\blk-mq.c Create Date:2022-07-27 18:46:27
Last Modify:2020-03-17 23:18:05 Copyright©Brick
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函数名称：blk_mq_init_cpu_queues

函数原型：static void blk_mq_init_cpu_queues(struct request_queue *q, unsigned int nr_hw_queues)

返回类型：void

参数：

类型参数名称
struct request_queue *q
unsigned intnr_hw_queues
2376  set等于tag_set
2379  遍历可用CPU(i)
2380  __ctx等于per_cpu_ptr( sw queues , i)
2384  cpu等于i
2385  spin_lock_init( & lock)
2386  以k小于HCTX_MAX_TYPES循环初始化链表头
2389  queue等于q
2395  以j小于nr_maps循环
2396  hctx等于lk_mq_map_queue_type() - map (hctx_type,cpu) to hardware queue*@q: request queue*@type: the hctx type index*@cpu: CPU
2397  如果nr_hw_queues大于1且@numa_node: NUMA node the storage adapter has been connected to. 恒等于NUMA_NO_NODE则@numa_node: NUMA node the storage adapter has been connected to. 等于local_memory_node(cpu_to_node(i))
调用者
名称描述
blk_mq_init_allocated_queue