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linuxunixpidsystem-calls

alternative for find_task_by_pid()

I need to access task with given pid in my syscall. Apparently function find_task_by_pid() was serving this purpose in older versions of Linux kernel. It seems like only function to search for task with given pid available in newer kernels (like 3.13) is find_task_by_vpid() . Would calling this function return same task as previous one for given pid? ( What does virtual ( local ) PID mean ? ) If not, is there function equivalent to find_task_by_id() ?

Solution

  • This worked for me :

    pid_task(find_vpid(arg1), PIDTYPE_PID)

    where arg1 is variable of type pid_t