Re: [PATCH][2.5.47]Add exported valid_kernel_address()

[Rusty Lynch]

I had a need for it in a sample kprobes driver where I wanted to verify that
some address
was a valid kernel space address before I handed a probe to kprobes.

So I would do something like:

if (!valid_kernel_address(probe->addr)) {
    ret = -EINVAL;
    goto out;
}

register_kprobe(probe);

and then kpboes will go and attempt to set *(probe->addr) = BREAK_POINT;

    -rustyl
----- Original Message -----
From: "Andi Kleen" <[e-mail]>
To: "Arjan van de Ven" <[e-mail]>
Cc: <[e-mail]>; <[e-mail]>
Sent: Wednesday, November 13, 2002 1:14 PM
Subject: Re: [PATCH][2.5.47]Add exported valid_kernel_address()

> Arjan van de Ven <[e-mail]> writes:
>
> > it is customary that people who ask for an export explain why they need
> > it.... would you mind explaining that ?
>
> For modular lkcd I guess. Make a lot of sense to do it modular.
>
> -Andi