Hi Andi,

I rendered my rwsem testsuite down to a single module that takes a bunch of
parameters to tell it how many threads to run.

Run the module with something like:

	insmod /tmp/rwsem-any.ko numrd=10 numwr=4 numdg=4 elapse=30 do_sched=1

And it'll start 10 reader threads, 4 writer threads, and 4 write-downgrade
threads. It'll run for 30 seconds, and each thread will invoke schedule()
after every cycle.

The module will exit on error ENOANO if successful so that it doesn't need to
be removed later:

	[root@host135 root]# insmod /tmp/rwsem-any.ko 
	Error inserting `/tmp/rwsem-any.ko': -1 No anode

And it'll print a summary to the kernel console:

	rwsem_any starting tests...
	Write0: done
	Read0: done
	Down0: done
	rwsem counter = 0
	reads taken: 90636
	writes taken: 181496
	downgrades taken: 90648

David