函数逻辑报告

Linux Kernel

v5.5.9

Brick Technologies Co., Ltd

Source Code:kernel\bpf\devmap.c Create Date:2022-07-27 14:40:03
Last Modify:2020-03-12 14:18:49 Copyright©Brick
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函数名称：dev_map_flush_old

函数原型：static void dev_map_flush_old(struct bpf_dtab_netdev *dev)

返回类型：void

参数：

类型参数名称
struct bpf_dtab_netdev *dev
515  如果ndo_xdp_xmit则
519  _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
520  遍历在线CPU(cpu)
521  bq等于per_cpu_ptr(bulkq, cpu)
522  bq_xmit_all(bq, doorbell signal consumer , false)
524  _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()
调用者
名称描述
__dev_map_entry_free