函数逻辑报告

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v5.5.9

Brick Technologies Co., Ltd

Source Code:block\blk-mq.c Create Date:2022-07-27 18:47:09
Last Modify:2020-03-17 23:18:05 Copyright©Brick
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函数名称：blk_mq_realloc_tag_set_tags

函数原型：static int blk_mq_realloc_tag_set_tags(struct blk_mq_tag_set *set, int cur_nr_hw_queues, int new_nr_hw_queues)

返回类型：int

参数：

类型参数名称
struct blk_mq_tag_set *set
intcur_nr_hw_queues
intnew_nr_hw_queues
2996  如果cur_nr_hw_queues大于等于new_nr_hw_queues则返回:0
2999  new_tags等于kcalloc_node(new_nr_hw_queues, *的长度, GFP_KERNEL, numa_node)
3001  如果非new_tags则返回:负ENOMEM
3004  如果tags则memcpy(new_tags, tags, cur_nr_hw_queues * tags的长度)
3007  释放内存
3008  tags等于new_tags
3009  nr_hw_queues等于new_nr_hw_queues
3011  返回:0
调用者
名称描述
blk_mq_alloc_tag_setAlloc a tag set to be associated with one or more request queues.* May fail with EINVAL for various error conditions. May adjust the* requested depth down, if it's too large. In that case, the set* value will be stored in set->queue_depth.
__blk_mq_update_nr_hw_queues