函数逻辑报告

Linux Kernel

v5.5.9

Brick Technologies Co., Ltd

Source Code:kernel\locking\rtmutex.c Create Date:2022-07-27 10:52:41
Last Modify:2020-03-17 14:26:38 Copyright©Brick
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函数名称:Futex variant, must not use fastpath.

函数原型:int __sched rt_mutex_futex_trylock(struct rt_mutex *lock)

返回类型:int

参数:

类型参数名称
struct rt_mutex *lock
1531  返回:Slow path try-lock function:
调用者
名称描述
futex_lock_piUserspace tried a 0 -> TID atomic transition of the futex value* and failed. The kernel side here does the whole locking operation:* if there are waiters then it will block as a consequence of relying* on rt-mutexes, it does PI, etc