getting pids on 2.6

[Jed Brazos <j_brazos@xxxxxxxxx>]

Hi,

  I'm trying to list all of the tasks and their children.

  The code below does not list all of the code as compared to the /proc entries.

  Why does the following code not list all of the active pids in the system?

  -----------------------




void list_pids(void)
{
    struct task_struct *tp;
    struct list_head   *_p;
    struct list_head   *_n;
    struct task_struct *p;


    read_lock(&tasklist_lock);
    for (tp = &init_task;  (tp = next_task(tp)) != &init_task; ) {
         printk("[parent]  pid =%d    \n" ,tp->pid );
         list_for_each_safe(_p,_n, &tp->children ){
             p = list_entry(_p,struct task_struct,sibling);
             printk("   [child]  pid =%d   \n", p->pid );

         }
    }
    read_unlock(&tasklist_lock);
 return ;
}





		
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