3041 	struct buffer_page *reader = cpu_buffer->reader_page;  in rb_per_cpu_empty()  local
3049 	return reader->read == rb_page_commit(reader) &&  in rb_per_cpu_empty()
3050 		(commit == reader ||  in rb_per_cpu_empty()
3516 	struct buffer_page *reader = NULL;  in rb_get_reader_page()  local
3533 		reader = NULL;  in rb_get_reader_page()
3537 	reader = cpu_buffer->reader_page;  in rb_get_reader_page()
3540 	if (cpu_buffer->reader_page->read < rb_page_size(reader))  in rb_get_reader_page()
3545 		       cpu_buffer->reader_page->read > rb_page_size(reader)))  in rb_get_reader_page()
3549 	reader = NULL;  in rb_get_reader_page()
3569 	reader = rb_set_head_page(cpu_buffer);  in rb_get_reader_page()
3570 	if (!reader)  in rb_get_reader_page()
3572 	cpu_buffer->reader_page->list.next = rb_list_head(reader->list.next);  in rb_get_reader_page()
3573 	cpu_buffer->reader_page->list.prev = reader->list.prev;  in rb_get_reader_page()
3580 	cpu_buffer->pages = reader->list.prev;  in rb_get_reader_page()
3608 	ret = rb_head_page_replace(reader, cpu_buffer->reader_page);  in rb_get_reader_page()
3621 	rb_list_head(reader->list.next)->prev = &cpu_buffer->reader_page->list;  in rb_get_reader_page()
3625 	cpu_buffer->reader_page = reader;  in rb_get_reader_page()
3637 	if (reader && reader->read == 0)  in rb_get_reader_page()
3638 		cpu_buffer->read_stamp = reader->page->time_stamp;  in rb_get_reader_page()
3643 	return reader;  in rb_get_reader_page()
3649 	struct buffer_page *reader;  in rb_advance_reader()  local
3652 	reader = rb_get_reader_page(cpu_buffer);  in rb_advance_reader()
3655 	if (RB_WARN_ON(cpu_buffer, !reader))  in rb_advance_reader()
3721 	struct buffer_page *reader;  in rb_buffer_peek()  local
3734 	reader = rb_get_reader_page(cpu_buffer);  in rb_buffer_peek()
3735 	if (!reader)  in rb_buffer_peek()
4483 	struct buffer_page *reader;  in ring_buffer_read_page()  local
4512 	reader = rb_get_reader_page(cpu_buffer);  in ring_buffer_read_page()
4513 	if (!reader)  in ring_buffer_read_page()
4518 	read = reader->read;  in ring_buffer_read_page()
4519 	commit = rb_page_commit(reader);  in ring_buffer_read_page()
4567 			rpos = reader->read;  in ring_buffer_read_page()
4586 		cpu_buffer->read += rb_page_entries(reader);  in ring_buffer_read_page()
4591 		bpage = reader->page;  in ring_buffer_read_page()
4592 		reader->page = *data_page;  in ring_buffer_read_page()
4593 		local_set(&reader->write, 0);  in ring_buffer_read_page()
4594 		local_set(&reader->entries, 0);  in ring_buffer_read_page()
4595 		reader->read = 0;  in ring_buffer_read_page()
4603 		if (reader->real_end)  in ring_buffer_read_page()
4604 			local_set(&bpage->commit, reader->real_end);  in ring_buffer_read_page()