Function report

Linux Kernel

v5.5.9

Brick Technologies Co., Ltd

Source Code:block\blk-mq.c Create Date:2022-07-28 17:11:48
Last Modify:2020-03-17 23:18:05 Copyright©Brick
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Name:blk_mq_realloc_tag_set_tags

Proto:static int blk_mq_realloc_tag_set_tags(struct blk_mq_tag_set *set, int cur_nr_hw_queues, int new_nr_hw_queues)

Type:int

Parameter:

TypeParameterName
struct blk_mq_tag_set *set
intcur_nr_hw_queues
intnew_nr_hw_queues
2996  If cur_nr_hw_queues >= new_nr_hw_queues Then Return 0
2999  new_tags = kcalloc_node(new_nr_hw_queues, size of * , GFP_KERNEL, numa_node)
3001  If Not new_tags Then Return -ENOMEM
3004  If tags Then memcpy(new_tags, tags, cur_nr_hw_queues * size of tags )
3007  kfree(tags)
3008  tags = new_tags
3009  nr_hw_queues = new_nr_hw_queues
3011  Return 0
Caller
NameDescribe
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