函数逻辑报告

Linux Kernel

v5.5.9

Brick Technologies Co., Ltd

Source Code:kernel\notifier.c Create Date:2022-07-27 10:32:23
Last Modify:2020-03-12 14:18:49 Copyright©Brick
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函数名称：__blocking_notifier_call_chain - Call functions in a blocking notifier chain*@nh: Pointer to head of the blocking notifier chain*@val: Value passed unmodified to notifier function*@v: Pointer passed unmodified to notifier function

函数原型：int __blocking_notifier_call_chain(struct blocking_notifier_head *nh, unsigned long val, void *v, int nr_to_call, int *nr_calls)

返回类型：int

参数：

类型参数名称
struct blocking_notifier_head *nh
unsigned longval
void *v
intnr_to_call
int *nr_calls
275  ret等于Don't care
282  如果cu_access_pointer() - fetch RCU pointer with no dereferencing*@p: The pointer to read* Return the value of the specified RCU-protected pointer, but omit the* lockdep checks for being in an RCU read-side critical section(head)则
283  lock for reading
284  ret等于er_call_chain - Informs the registered notifiers about an event.*@nl: Pointer to head of the blocking notifier chain*@val: Value passed unmodified to notifier function*@v: Pointer passed unmodified to notifier function
286  lease a read lock
288  返回:ret
调用者
名称描述
blocking_notifier_call_chain