You are right i included <linux/sched.h> but not <asm/current.h> :(
Now it compiles all right. But there is still few doubts.
Why didn't the same code compile with including just <linux/sched.h>
and not <asm.current.h> when i use code like this ->
#include <linux/module.h>
#include <linux/init.h>
#include <linux/sched.h>
MODULE_LICENSE("GPL");
static int __init init(void)
{
struct task_struct *p;
p = current;
printk(KERN_DEBUG "%u", p->pid); <- gives error on this line.
return 0;
}
static void __exit exit(void)
{
printk(KERN_DEBUG "\nCurrent process is now in exit as %u", current->pid);
}
module_init(init);
module_exit(exit);
on the other hand if i use printk(KERN_DEBUG "%u", current->pid); in
the offending line i can compile it without any hiccups, why?
that is weird.
current is defined in asm/current.h and struct task_struct is declared
in sched.h. But sched.h internally includes asm/current.h. So, the
code should compile clean without explicitly including asm/current.h.
regards
Manish Regmi
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