57 	unsigned	tail;  member
149 		unsigned	tail;  member
532 	ring->head = ring->tail = 0;  in aio_setup_ring()
968                                   unsigned tail)  in refill_reqs_available()  argument
974 	if (head <= tail)  in refill_reqs_available()
975 		events_in_ring = tail - head;  in refill_reqs_available()
977 		events_in_ring = ctx->nr_events - (head - tail);  in refill_reqs_available()
1016 		refill_reqs_available(ctx, head, ctx->tail);  in user_refill_reqs_available()
1094 	unsigned tail, pos, head;  in aio_complete()  local
1133 	tail = ctx->tail;  in aio_complete()
1134 	pos = tail + AIO_EVENTS_OFFSET;  in aio_complete()
1136 	if (++tail >= ctx->nr_events)  in aio_complete()
1137 		tail = 0;  in aio_complete()
1151 		 ctx, tail, iocb, iocb->ki_user_iocb, iocb->ki_user_data,  in aio_complete()
1159 	ctx->tail = tail;  in aio_complete()
1163 	ring->tail = tail;  in aio_complete()
1169 		refill_reqs_available(ctx, head, tail);  in aio_complete()
1172 	pr_debug("added to ring %p at [%u]\n", iocb, tail);  in aio_complete()
1207 	unsigned head, tail, pos;  in aio_read_events_ring()  local
1223 	tail = ring->tail;  in aio_read_events_ring()
1232 	pr_debug("h%u t%u m%u\n", head, tail, ctx->nr_events);  in aio_read_events_ring()
1234 	if (head == tail)  in aio_read_events_ring()
1238 	tail %= ctx->nr_events;  in aio_read_events_ring()
1245 		avail = (head <= tail ?  tail : ctx->nr_events) - head;  in aio_read_events_ring()
1246 		if (head == tail)  in aio_read_events_ring()
1277 	pr_debug("%li  h%u t%u\n", ret, head, tail);  in aio_read_events_ring()