Paul Jackson points out that the sysfs code saves a node's cpumask in the
sysfs node, although it can change with CPU hotplug.  Don't do this.
Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>