函数逻辑报告

Linux Kernel

v5.5.9

Brick Technologies Co., Ltd

Source Code:ipc\sem.c Create Date:2022-07-27 18:19:06
Last Modify:2020-03-12 14:18:49 Copyright©Brick
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函数名称：unlink_queue

函数原型：static void unlink_queue(struct sem_array *sma, struct sem_queue *q)

返回类型：void

参数：

类型参数名称
struct sem_array *sma
struct sem_queue *q
782  删除链表项
783  如果umber of operations 大于1则pending complex operations 自减
调用者
名称描述
wake_const_opswake_const_ops - wake up non-alter tasks*@sma: semaphore array.*@semnum: semaphore that was modified.*@wake_q: lockless wake-queue head.* wake_const_ops must be called after a semaphore in a semaphore array* was set to 0
update_queuepdate_queue - look for tasks that can be completed.*@sma: semaphore array.*@semnum: semaphore that was modified.*@wake_q: lockless wake-queue head.* update_queue must be called after a semaphore in a semaphore array* was modified
freearyFree a semaphore set. freeary() is called with sem_ids.rwsem locked* as a writer and the spinlock for this semaphore set hold. sem_ids.rwsem* remains locked on exit.
do_semtimedop