57 	unsigned	tail;  member
148 		unsigned	tail;  member
509 	ring->head = ring->tail = 0;  in aio_setup_ring()
930                                   unsigned tail)  in refill_reqs_available()  argument
936 	if (head <= tail)  in refill_reqs_available()
937 		events_in_ring = tail - head;  in refill_reqs_available()
939 		events_in_ring = ctx->nr_events - (head - tail);  in refill_reqs_available()
978 		refill_reqs_available(ctx, head, ctx->tail);  in user_refill_reqs_available()
1056 	unsigned tail, pos, head;  in aio_complete()  local
1083 	tail = ctx->tail;  in aio_complete()
1084 	pos = tail + AIO_EVENTS_OFFSET;  in aio_complete()
1086 	if (++tail >= ctx->nr_events)  in aio_complete()
1087 		tail = 0;  in aio_complete()
1101 		 ctx, tail, iocb, iocb->ki_user_iocb, iocb->ki_user_data,  in aio_complete()
1109 	ctx->tail = tail;  in aio_complete()
1113 	ring->tail = tail;  in aio_complete()
1119 		refill_reqs_available(ctx, head, tail);  in aio_complete()
1122 	pr_debug("added to ring %p at [%u]\n", iocb, tail);  in aio_complete()
1157 	unsigned head, tail, pos;  in aio_read_events_ring()  local
1173 	tail = ring->tail;  in aio_read_events_ring()
1182 	pr_debug("h%u t%u m%u\n", head, tail, ctx->nr_events);  in aio_read_events_ring()
1184 	if (head == tail)  in aio_read_events_ring()
1188 	tail %= ctx->nr_events;  in aio_read_events_ring()
1195 		avail = (head <= tail ?  tail : ctx->nr_events) - head;  in aio_read_events_ring()
1196 		if (head == tail)  in aio_read_events_ring()
1227 	pr_debug("%li  h%u t%u\n", ret, head, tail);  in aio_read_events_ring()