#include <linux/module.h>
#include <linux/kernel.h>
#include <linux/wait.h>
#include <linux/sched.h>
#include <linux/list.h>
MODULE_LICENSE("GPL");
static DECLARE_WAIT_QUEUE_HEAD (my_queue);
int init_module(void)
{
struct task_struct *my_task ;
my_task = find_task_by_pid(1477);
DECLARE_WAITQUEUE(wait, my_task);
my_task->state = TASK_UNINTERRUPTIBLE ;
init_waitqueue_entry( &wait, my_task);
add_wait_queue( &my_queue , &wait);
sleep_on(&my_queue);
interruptible_sleep_on(&my_queue);
schedule( );
return 0;
}
void cleanuo_module()
{
printk("Bye");
wake_up( &my_queue );
}
Hi everyone,
In the above module I want to sleep the process having
pid 1477 ( which is mpg123 player in my case in wait
queue ). Instead of sleeping the process with the
given pid it is hanging insmod command. so plz tell me
what is wrong in the above code.
Thanks for replays in Advance,
Thanks and regards
Deepak Joshi.
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