506 	struct buffer_page		*head_page;	/* read from head */  member
566 	struct buffer_page		*head_page;  member
1368 	head = cpu_buffer->head_page;  in rb_head_page_activate()
1465 	if (RB_WARN_ON(cpu_buffer, !cpu_buffer->head_page))  in rb_set_head_page()
1473 	page = head = cpu_buffer->head_page;  in rb_set_head_page()
1483 				cpu_buffer->head_page = page;  in rb_set_head_page()
1754 	cpu_buffer->head_page  in rb_allocate_cpu_buffer()
1756 	cpu_buffer->tail_page = cpu_buffer->commit_page = cpu_buffer->head_page;  in rb_allocate_cpu_buffer()
1984 		cpu_buffer->head_page = list_entry(next_page,  in rb_remove_pages()
2059 		struct list_head *head_page, *prev_page, *r;  in rb_insert_pages()  local
2066 		head_page = &hpage->list;  in rb_insert_pages()
2067 		prev_page = head_page->prev;  in rb_insert_pages()
2073 				     ((unsigned long)head_page | RB_PAGE_HEAD);  in rb_insert_pages()
2086 			head_page->prev = last_page;  in rb_insert_pages()
2382 	struct buffer_page *iter_head_page = iter->head_page;  in rb_iter_head_event()
2430 	iter->page_stamp = iter->read_stamp = iter->head_page->page->time_stamp;  in rb_iter_head_event()
2467 	if (iter->head_page == cpu_buffer->reader_page)  in rb_inc_iter()
2468 		iter->head_page = rb_set_head_page(cpu_buffer);  in rb_inc_iter()
2470 		rb_inc_page(&iter->head_page);  in rb_inc_iter()
2472 	iter->page_stamp = iter->read_stamp = iter->head_page->page->time_stamp;  in rb_inc_iter()
4394 	iter->head_page = cpu_buffer->reader_page;  in rb_iter_reset()
4398 	iter->cache_reader_page = iter->head_page;  in rb_iter_reset()
4406 		iter->read_stamp = iter->head_page->page->time_stamp;  in rb_iter_reset()
4442 	struct buffer_page *head_page;  in ring_buffer_iter_empty()  local
4451 	head_page = cpu_buffer->head_page;  in ring_buffer_iter_empty()
4475 	return ((iter->head_page == commit_page && iter->head >= commit) ||  in ring_buffer_iter_empty()
4476 		(iter->head_page == reader && commit_page == head_page &&  in ring_buffer_iter_empty()
4477 		 head_page->read == commit &&  in ring_buffer_iter_empty()
4651 	rb_inc_page(&cpu_buffer->head_page);  in rb_get_reader_page()
4751 	if (iter->next_event >= rb_page_size(iter->head_page)) {  in rb_advance_iter()
4753 		if (iter->head_page == cpu_buffer->commit_page)  in rb_advance_iter()
4882 	if (iter->head >= rb_page_size(iter->head_page)) {  in rb_iter_peek()
4908 			*ts = rb_fix_abs_ts(*ts, iter->head_page->page->time_stamp);  in rb_iter_peek()
5268 	cpu_buffer->head_page  in rb_reset_cpu()
5270 	rb_clear_buffer_page(cpu_buffer->head_page);  in rb_reset_cpu()
5275 	cpu_buffer->tail_page = cpu_buffer->head_page;  in rb_reset_cpu()
5276 	cpu_buffer->commit_page = cpu_buffer->head_page;  in rb_reset_cpu()