函数逻辑报告

Linux Kernel

v5.5.9

Brick Technologies Co., Ltd

Source Code:kernel\bpf\bpf_lru_list.c Create Date:2022-07-27 14:29:04
Last Modify:2020-03-12 14:18:49 Copyright©Brick
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函数名称:Calls __bpf_lru_list_shrink_inactive() to shrink some* ref-bit-cleared nodes and move them to the designated* free list

函数原型:static unsigned int __bpf_lru_list_shrink(struct bpf_lru *lru, struct bpf_lru_list *l, unsigned int tgt_nshrink, struct list_head *free_list, enum bpf_lru_list_type tgt_free_type)

返回类型:unsigned int

参数:

类型参数名称
struct bpf_lru *lru
struct bpf_lru_list *l
unsigned inttgt_nshrink
struct list_head *free_list
enum bpf_lru_list_typetgt_free_type
266  nshrinked等于Shrink the inactive list. It starts from the tail of the* inactive list and only move the nodes without the ref bit* set to the designated free list.
268  如果nshrinked则返回:nshrinked
272  如果非链表为空force_shrink_list等于lists[BPF_LRU_LIST_T_INACTIVE]
274  否则force_shrink_list等于lists[BPF_LRU_LIST_T_ACTIVE]
279  如果del_from_htab(del_arg, node)则
280  __bpf_lru_node_move_to_free(l, node, free_list, tgt_free_type)
282  返回:1
286  返回:0
调用者
名称描述
bpf_lru_list_pop_free_to_local
bpf_percpu_lru_pop_free