94 	u32 tail;  in encode_tail()  local
99 	tail  = (cpu + 1) << _Q_TAIL_CPU_OFFSET;  in encode_tail()
100 	tail |= idx << _Q_TAIL_IDX_OFFSET; /* assume < 4 */  in encode_tail()
102 	return tail;  in encode_tail()
105 static inline struct mcs_spinlock *decode_tail(u32 tail)  in decode_tail()  argument
107 	int cpu = (tail >> _Q_TAIL_CPU_OFFSET) - 1;  in decode_tail()
108 	int idx = (tail &  _Q_TAIL_IDX_MASK) >> _Q_TAIL_IDX_OFFSET;  in decode_tail()
133 			u16	tail;  member
137 			u16	tail;  member
175 static __always_inline u32 xchg_tail(struct qspinlock *lock, u32 tail)  in xchg_tail()  argument
179 	return (u32)xchg(&l->tail, tail >> _Q_TAIL_OFFSET) << _Q_TAIL_OFFSET;  in xchg_tail()
205 static __always_inline u32 xchg_tail(struct qspinlock *lock, u32 tail)  in xchg_tail()  argument
210 		new = (val & _Q_LOCKED_PENDING_MASK) | tail;  in xchg_tail()
284 	u32 new, old, tail;  in queued_spin_lock_slowpath()  local
363 	tail = encode_tail(smp_processor_id(), idx);  in queued_spin_lock_slowpath()
384 	old = xchg_tail(lock, tail);  in queued_spin_lock_slowpath()
425 		if (val != tail) {  in queued_spin_lock_slowpath()