[PATCH 4/7] kprobes: Support probing module __exit function

[Ananth N Mavinakayanahalli]

On Tue, Nov 11, 2008 at 03:56:58PM -0500, Masami Hiramatsu wrote:
> Allows kprobes to probe __exit routine.
> This adds flags member to struct kprobe. When module is freed(kprobes hooks
> module_notifier to get this event), kprobes which probe the functions in
> that module are set to "Gone" flag to the flags member. These "Gone" probes
> are never be enabled.
> Users can check the GONE flag through debugfs.
> 
> This also removes mod_refcounted, because we couldn't free a module if
> kprobe incremented the refcount of that module.
> 
> Signed-off-by: Masami Hiramatsu <mhiramat@redhat.com>

Acked-by: Ananth N Mavinakayanahalli <ananth@in.ibm.com>