函数逻辑报告

Linux Kernel

v5.5.9

Brick Technologies Co., Ltd

Source Code:kernel\events\core.c Create Date:2022-07-27 14:58:53
Last Modify:2022-05-20 07:50:19 Copyright©Brick
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函数名称：For the read side: events when they trigger

函数原型：static inline struct hlist_head *find_swevent_head_rcu(struct swevent_htable *swhash, u64 type, u32 event_id)

返回类型：struct hlist_head

参数：

类型参数名称
struct swevent_htable *swhash
u64type
u32event_id
8609  hlist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().(swevent_hlist)
8610  如果非hlist则返回:NULL
8613  返回:__find_swevent_head(hlist, type, event_id)
调用者
名称描述
do_perf_sw_event