480 	local_t		top;  member
616 static inline u64 rb_time_val(unsigned long top, unsigned long bottom)  in rb_time_val()  argument
620 	val = top & RB_TIME_VAL_MASK;  in rb_time_val()
629 	unsigned long top, bottom;  in __rb_time_read()  local
639 		top = local_read(&t->top);  in __rb_time_read()
643 	*cnt = rb_time_cnt(top);  in __rb_time_read()
649 	*ret = rb_time_val(top, bottom);  in __rb_time_read()
665 static inline void rb_time_split(u64 val, unsigned long *top, unsigned long *bottom)  in rb_time_split()  argument
667 	*top = (unsigned long)((val >> RB_TIME_SHIFT) & RB_TIME_VAL_MASK);  in rb_time_split()
679 	unsigned long cnt, top, bottom;  in rb_time_set()  local
681 	rb_time_split(val, &top, &bottom);  in rb_time_set()
686 		rb_time_val_set(&t->top, top, cnt);  in rb_time_set()
702 	unsigned long cnt, top, bottom;  in rb_time_cmpxchg()  local
721 	 rb_time_split(val, &top, &bottom);  in rb_time_cmpxchg()
722 	 top = rb_time_val_cnt(top, cnt);  in rb_time_cmpxchg()
731 	if (!rb_time_read_cmpxchg(&t->top, top, top2))  in rb_time_cmpxchg()