函数逻辑报告

Linux Kernel

v5.5.9

Brick Technologies Co., Ltd

Source Code:include\net\arp.h Create Date:2022-07-27 07:38:46
Last Modify:2020-03-12 14:18:49 Copyright©Brick
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函数名称：__ipv4_confirm_neigh

函数原型：static inline void __ipv4_confirm_neigh(struct net_device *dev, u32 key)

返回类型：void

参数：

类型参数名称
struct net_device *dev
u32key
54  _read_lock_bh() - mark the beginning of an RCU-bh critical section* This is equivalent of rcu_read_lock(), but also disables softirqs
55  n等于__ipv4_neigh_lookup_noref(dev, key)
56  如果n则
57  now等于jiffies
60  如果READ_ONCE(confirmed)不等于now则WRITE_ONCE(confirmed, now)
63  标记rcu锁结束的软中断