函数逻辑报告

Linux Kernel

v5.5.9

Brick Technologies Co., Ltd

Source Code:kernel\locking\semaphore.c Create Date:2022-07-27 10:48:09
Last Modify:2020-03-12 14:18:49 Copyright©Brick
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函数名称：__down

函数原型：static noinline void __sched __down(struct semaphore *sem)

返回类型：void

参数：

类型参数名称
struct semaphore *sem
237  Because this function is inlined, the 'state' parameter will be* constant, and thus optimised away by the compiler. Likewise the* 'timeout' parameter for the cases without timeouts.
调用者
名称描述
downdown - acquire the semaphore*@sem: the semaphore to be acquired* Acquires the semaphore