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 14:26:25
Last Modify:2022-05-23 09:15:29 Copyright©Brick
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函数名称：htab_map_seq_show_elem

函数原型：static void htab_map_seq_show_elem(struct bpf_map *map, void *key, struct seq_file *m)

返回类型：void

参数：

类型参数名称
struct bpf_map *map
void *key
struct seq_file *m
1219  _read_lock() - mark the beginning of an RCU read-side critical section* When synchronize_rcu() is invoked on one CPU while other CPUs* are within RCU read-side critical sections, then the* synchronize_rcu() is guaranteed to block until after all the other
1221  value等于htab_map_lookup_elem(map, key)
1222  如果非value则
1223  _read_unlock() - marks the end of an RCU read-side critical section.* In most situations, rcu_read_unlock() is immune from deadlock.* However, in kernels built with CONFIG_RCU_BOOST, rcu_read_unlock()
1224  返回
1227  btf_type_seq_show(btf, btf_key_type_id, key, m)
1228  seq_puts(m, ": ")
1229  btf_type_seq_show(btf, btf_value_type_id, value, m)
1230  seq_puts(m, "\n")
1232  _read_unlock() - marks the end of an RCU read-side critical section.* In most situations, rcu_read_unlock() is immune from deadlock.* However, in kernels built with CONFIG_RCU_BOOST, rcu_read_unlock()