函数逻辑报告

Linux Kernel

v5.5.9

Brick Technologies Co., Ltd

Source Code:kernel\bpf\cpumap.c Create Date:2022-07-27 14:41:52
Last Modify:2020-03-12 14:18:49 Copyright©Brick
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函数名称：__cpu_map_entry_free

函数原型：static void __cpu_map_entry_free(struct callback_head *rcu)

返回类型：void

参数：

类型参数名称
struct callback_head *rcu
409  rcpu等于container_of - cast a member of a structure out to the containing structure*@ptr: the pointer to the member.*@type: the type of the container struct this is embedded in.*@member: the name of the member within the struct.(rcu, structbpf_cpu_map_entry, rcu)
412  遍历在线CPU(cpu)
413  bq等于per_cpu_ptr( XDP can run multiple RX-ring queues, need __percpu enqueue store , cpu)
416  bq_flush_to_queue(bq, false)
418  释放内存
420  put_cpu_map_entry(rcpu)