Module unloading

[John L. <mo...@co...>]

We have to disable module unloading for each release I think.

Whilst the race window between the incl of the module use count and
user processes actually leaving the module code area is small, I don't think
we can take the risk of leaving it in.

Also as far as I understand we could be in much deeper trouble when
the kernel becomes pre-emptible in 2.5.

A silver bullet would be nice, but syscall intercepting is such an ugly
thing to do, we will have to just accept one of its disadvantages.

regards
john

-- 
"Do you mean to tell me that "The Prince" is not the set textbook for
CS1072 Professional Issues ? What on earth do you learn in that course ?"
	- David Lester