TICKET_SHIFT      112 arch/x86/include/asm/spinlock.h 	new.head_tail = old.head_tail + (TICKET_LOCK_INC << TICKET_SHIFT);
TICKET_SHIFT      129 arch/x86/include/asm/spinlock.h 	new.head_tail = old.head_tail & ~(TICKET_SLOWPATH_FLAG << TICKET_SHIFT);