This uses Davide's do_general_protection() fault based io-bitmap lazy update
code and combines it with the ioport-owner cache.
Signed-off-by: Ingo Molnar <mingo@elte.hu>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>