Lines Matching refs:head
27 * Basic ring buffer. 'head' is incremented in _queue(), and
30 * 'head' == 'tail'. 'entries' is the ring size, and
37 unsigned int head;
107 unsigned head;
124 unsigned head;
128 head = ring->head;
130 if (head == ring->tail) {
135 events[i] = ring->events[head];
137 ring->head = (head + 1) % ring->nr;
213 ld->iocbs[ld->head] = &io_u->iocb;
214 ld->io_us[ld->head] = io_u;
215 ring_inc(ld, &ld->head, 1);
