linux-kernel - Re: [PATCH] Mark kobjects as unitialized

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Message-ID: <20080306180559.GA14934@suse.de>
Date:	Thu, 6 Mar 2008 10:05:59 -0800
From:	Greg KH <gregkh@...e.de>
To:	Balaji Rao <balajirrao@...il.com>
Cc:	kvm-devel@...ts.sourceforge.net, linux-kernel@...r.kernel.org
Subject: Re: [PATCH] Mark kobjects as unitialized

On Thu, Mar 06, 2008 at 11:20:50PM +0530, Balaji Rao wrote:
> On Thursday 06 March 2008 10:35:14 pm Greg KH wrote:
> <snip>
> > Where exactly in the code does that happen?  kobjects should not be
> > "reused" as that implies that they are static, and not dynamically
> > allocated, right?
> >
> > Which kobject is this?
> Yes, its static. Here's the code from virt/kvm_main.c:1269
> 
> static struct sys_device kvm_sysdev = {
>         .id = 0,
>         .cls = &kvm_sysdev_class,
> };
> 
> this sys_device is being registered/unregistered when kvm-intel is 
> loaded/unloaded.

Ah, ok.  I'll add this patch then.

> > Ugh, is this the sys_device stuff?  I hate that code...
> >
> Yes it is! But, why do you hate it ?

For reasons like this :)

kobjects should not be static.  the sysdevice stuff was a hack when it
was originally created and never touched since the mid 2.5 days.  It
needs to be fixed up a lot, and is on my TODO list, slowly getting
closer to the top...

thanks,

greg k-h
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