x86: add PUD_PAGE_SIZE
a PUD entry covers 1GB of virtual memory.Signed-off-by: Andi Kleen <ak@suse.de>Signed-off-by: Ingo Molnar <mingo@elte.hu>Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
authored by Andi Kleen and committed by Ingo Molnar 18 years ago fbff3c21 019c3e7c