How to access the number of threads currently reading/writing form the userspace?


I have written a module where a user can read or write to a proc file - how do I determine the number of threads in a user process that is reading or writing in kernel-level programming?


Use current as a pointer to the current task (current task_struct) inside your read/write function:

#include <linux/sched.h> struct task_struct * t; for (t = next_thread(current); t != current; t = next_thread(t)) { // do the stuff }


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