函数逻辑报告

Linux Kernel

v5.5.9

Brick Technologies Co., Ltd

Source Code:include\asm-generic\qspinlock.h Create Date:2022-07-27 09:24:01
Last Modify:2020-03-12 14:18:49 Copyright©Brick
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函数名称:queued_spin_is_contended - check if the lock is contended*@lock : Pointer to queued spinlock structure* Return: 1 if lock contended, 0 otherwise

函数原型:static __always_inline int queued_spin_is_contended(struct qspinlock *lock)

返回类型:int

参数:

类型参数名称
struct qspinlock *lock
51  返回:atomic_read( & val)按位与_Q_LOCKED_MASK的反