函数逻辑报告

Linux Kernel

v5.5.9

Brick Technologies Co., Ltd

Source Code:include\net\sock_reuseport.h Create Date:2022-07-27 07:39:22
Last Modify:2020-03-12 14:18:49 Copyright©Brick
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函数名称：reuseport_has_conns

函数原型：static inline bool reuseport_has_conns(struct sock *sk, bool set)

返回类型：bool

参数：

类型参数名称
struct sock *sk
boolset
44  bool ret = false
46  _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
47  reuse等于cu_dereference() - fetch RCU-protected pointer for dereferencing*@p: The pointer to read, prior to dereferencing* This is a simple wrapper around rcu_dereference_check().(sk_reuseport_cb)
48  如果reuse则
49  如果set则has_conns等于1
51  ret等于has_conns
53  _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()
55  返回:ret