Currently our spinlocks can call into the hypervisor on dedicated processor
machines.  Doing this may slow our locks down, so avoid it where possible.
Signed-off-by: Anton Blanchard <anton@samba.org>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>