Re: [PATCH v2 1/2] kernel/sys: add PR_GET_TASK_SIZE option to prctl(2)

[Joel Savitz]

> Won't be possible to use put_user here? Something like
>
> static int prctl_get_tasksize(unsigned long __user *uaddr)
> {
>         return put_user(TASK_SIZE, uaddr) ? -EFAULT : 0;
> }

What would be the benefit of using put_user() over copy_to_user() in
this context?