Re: [Xen-devel] Re: [PATCH] [vTPM] Not building vTPM frontend as module

[Keir Fraser <Keir.Fraser@xxxxxxxxxxxx>]

On 10 May 2006, at 16:02, Ian Campbell wrote:

> > I suggest you add __unsafe(THIS_MODULE) to the end of your module_init
> > function, as we have done for netback and blkback. This will make it
> > impossible for the user to unload the module, and print a message to
> > the kernel log explaining why.
> If a module_init() is present but a module_exit() is not then you 
> cannot
> unload the module.
>
> (unless you enable CONFIG_MODULE_FORCE_UNLOAD and use rmmod's --force
> option, in which case your kernel become tainted)
Even better. We should be using this for netback and blkback too in 
that case.
 -- Keir


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