函数逻辑报告

Linux Kernel

v5.5.9

Brick Technologies Co., Ltd

Source Code:ipc\mqueue.c Create Date:2022-07-27 18:27:07
Last Modify:2020-03-17 23:00:47 Copyright©Brick
首页 函数Tree
注解内核,赢得工具下载SCCTEnglish

函数名称：SYSCALL_DEFINE2

函数原型：SYSCALL_DEFINE2(mq_notify, mqd_t, mqdes, const struct sigevent __user *, u_notification)

返回类型：

参数：无

1341  struct sigevent n, * p = NULL
1342  如果u_notification则
1343  如果copy_from_user( & n, u_notification, sizeof(structsigevent))则返回:负EFAULT
1345  p等于n
1347  返回:Notes: the case when user wants us to deregister (with NULL as pointer)* and he isn't currently owner of notification, will be silently discarded.* It isn't explicitly defined in the POSIX.