Lines Matching refs:head
336 unsigned int p_head = pipe->head;
340 unsigned int i_head = i->head;
360 printk(KERN_ERR "head = %d, tail = %d, buffers = %d\n",
382 unsigned int i_head = i->head;
416 pipe->head = i_head + 1;
418 i->head = i_head;
486 unsigned int iter_head = i->head;
539 pipe->head = iter_head;
564 i->head = i_head;
604 i->head = i_head;
679 i->head = i_head;
881 struct page *head;
894 head = compound_head(page);
895 v += (page - head) << PAGE_SHIFT;
897 if (likely(n <= v && v <= (page_size(head))))
961 i->head = i_head;
1013 unsigned int p_head = pipe->head;
1018 unsigned int i_head = i->head;
1031 pipe->head = p_head;
1043 unsigned int i_head = i->head;
1055 i->head = i_head;
1087 unsigned int i_head = i->head;
1106 i->head = i_head;
1194 WARN_ON(pipe_full(pipe->head, pipe->tail, pipe->ring_size));
1197 i->head = pipe->head;
1200 i->start_head = i->head;
1230 if (size && i->iov_offset && allocated(&i->pipe->bufs[i->head & p_mask]))