Re: [PATCH][ATM] use rtnl_{lock,unlock} during device operations

[Roman Zippel]

Hi,

On Mon, 9 Jun 2003, David S. Miller wrote:

>    > netdev->dead = 1;
>    > netdev->op_this = NULL;
>    > netdev->op_that = NULL;
>    > netdev->op_whatever = NULL;
>    > synchronize_kernel();
>    
>    That assumes of course that the functions don't sleep.
>    (RCU isn't really the answer to everything.)
>    
> They hold references to the object, it doesn't matter if
> they sleep.

That's not the point. You also have to wait for the already running 
operations to finish, before you can allow the module to unload.

bye, Roman