函数逻辑报告

Linux Kernel

v5.5.9

Brick Technologies Co., Ltd

Source Code:kernel\bpf\hashtab.c Create Date:2022-07-27 14:26:28
Last Modify:2022-05-23 09:15:29 Copyright©Brick
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函数名称：htab_lru_percpu_map_lookup_elem

函数原型：static void *htab_lru_percpu_map_lookup_elem(struct bpf_map *map, void *key)

返回类型：void

参数：

类型参数名称
struct bpf_map *map
void *key
1273  l等于Called from syscall or from eBPF program directly, so* arguments have to match bpf_map_lookup_elem() exactly.* The return value is adjusted by BPF instructions* in htab_map_gen_lookup().
1275  如果l则
1276  bpf_lru_node_set_ref( & lru_node)
1277  返回:this_cpu_ptr(htab_elem_get_ptr(l, key_size))
1280  返回:NULL