Re: modular net drivers, take 2

[Andrew Morton <andrewm@xxxxxxxxxx>]

Andi Kleen wrote:
> 
> On Tue, Jun 20, 2000 at 02:04:35PM +0200, Andrew Morton wrote:
> >
> > - sys_ioctl() and sys_delete_module() both already claim
> >   the big lock, so where's the race anyway?  I feel I'm missing
> >   something..
> 
> Ugh, I missed that. Ok, with that there is no race. Even better :-)

I think I lied.  Look at this:

int sock_ioctl(...)
{
    struct socket *sock;
    int err;

    unlock_kernel();
    sock = socki_lookup(inode);
    err = sock->ops->ioctl(sock, cmd, arg);
    lock_kernel();
                                                                                
   
return err;
}