From: Eric W. Biederman <ebiederm@xmission.com>

It is ok to reserve resources > 4G on x86_64 struct resource is 64bit now :)
Signed-off-by: Eric Biederman <ebiederm@xmission.com>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>