336 	unsigned int p_head = pipe->head;  in sanity()  local
339 	unsigned int p_occupancy = pipe_occupancy(p_head, p_tail);  in sanity()
347 		if (unlikely(i_head != p_head - 1))  in sanity()
354 		if (i_head != p_head)  in sanity()
361 			p_head, p_tail, pipe->ring_size);  in sanity()
1013 	unsigned int p_head = pipe->head;  in pipe_truncate()  local
1016 	if (!pipe_empty(p_head, p_tail)) {  in pipe_truncate()
1026 		while (p_head != i_head) {  in pipe_truncate()
1027 			p_head--;  in pipe_truncate()
1028 			pipe_buf_release(pipe, &pipe->bufs[p_head & p_mask]);  in pipe_truncate()
1031 		pipe->head = p_head;  in pipe_truncate()