如何检查c中的内核是否仍在运行进程? [英] How can I check if a process is still running from the kernel in c?

问题描述

到目前为止，我所看到的所有答案似乎都只是在用户空间内进行检查.我需要一种从设备驱动程序内的内核空间进行检查的方法.我通过来自流程的ioctl调用获得了与流程相关联的task_struct，因此我可以随意使用其中包含的所有信息.

All the answers I've seen so far appear to just be checking within user space. I need a way to check from kernel space specifically within a device driver. I get the task_struct associated with the process through an ioctl call from the process so I have all the information contained in that at my disposal.

注意:我正在寻找的进程正在用户空间中运行

Note: the process I'm looking for is running in user space

推荐答案

此帮助吗?

struct task_struct { 
   volatile long state;    /* -1 unrunnable, 0 runnable, >0 stopped */
   ...
}

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