We already know that fork() and exec() are system calls for making a new process from user space. However, system calls cannot be called in kernel space. Then how to execute a process from kernel space? Usermode Helper API is for creating a user mode process from kernel space. Data structure that is used for the API is struct subprocess_info. /linux/include/kmod.h struct subprocess_info { struct work_struct work; struct completion* complete; const char* path; char** argv; char** envp; int wai...
