extern int __get_user_1(void *); extern int __get_user_2(void *); extern int __get_user_4(void *); extern int __get_user_8(void *); extern int __get_user_bad(void); #define __get_user_x(__r2,__p,__e,__s,__i...) \ __asm__ __volatile__ ( \ __asmeq("%...
在 内核空间和用户空间交换数据时,get_user和put_user是两个两用的函数。相对于copy_to_user和 copy_from_user(将在另一篇博客中分析),这两个函数主要用于完成一些简单类型变量(char、int、long等)的拷贝任务,对于一些 复合类型的变量,比如数据结构或者数组类型,get_user和put_user函数还是无法胜任,这两个函数内...
long get_user_pages(unsigned long start, unsigned long nr_pages, unsigned int gup_flags, struct page **pages, struct vm_area_struct **vmas) { #可见这个函数在带当前进程中映射内存 return __get_user_pages_locked(current, current->mm, start, nr_pages, ...
Unix/Linux get current working directory.To get the current working directory use the pwd command.For example if we change the directory to /home/user, pwd will print /home/user as the current working directory:$ cd /home/user$ pwd/home/user...
Use the Win32_ComputerSystem Class to Get Current User in PowerShell Use Environment Variables to Get Current User in PowerShell Use the whoami Command to Get Current User in PowerShell When working with Windows, you’ll almost certainly need to know which user accounts are actively signed...
内核中使用pin memory接口主要是get_user_pages()函数,该函数处理主要位于mm/gup.c文件中。 get_user_pages() get_user_pages()在内核中函数原型如下: long get_user_pages(unsigned long start, unsigned long nr_pages, unsigned int gup_flags, struct page **pages, ...
linux 内核 get_user（）函数用于核空间和用户空间交换数据。 Linux是一种开源电脑操作系统内核。它是...
This causes all outbound traffic to have Virtual Network Security Groups and User Defined Routes applied. webSocketsEnabled boolean true if WebSocket is enabled; otherwise, false. websiteTimeZone string Sets the time zone a site uses for generating timestamps. Compatible with Linux and ...
User account:A user account with sudo rights The tutorial assumes that users already have the latest Linux Mint OS on their computer systems. For bash, get the current directory in Linux Mint 20, open up the Terminal from the main menu on the bottom left of your screen, and then select ...
The offset tells us that the current system time zone is 2 hours ahead of the UTC. 5. timedatectl For all of the Linux distro that comes with systemd, the timedatectl command gives us the detailed time information of the system. This information includes the time at UTC, the local time,...