450 struct ring_buffer *ring_buffer_alloc(unsigned long size, unsigned flags)  in ring_buffer_alloc()  argument
470 	buffer->pages = DIV_ROUND_UP(size, BUF_PAGE_SIZE);  in ring_buffer_alloc()
602 int ring_buffer_resize(struct ring_buffer *buffer, unsigned long size)  in ring_buffer_resize()  argument
616 		return size;  in ring_buffer_resize()
618 	size = DIV_ROUND_UP(size, BUF_PAGE_SIZE);  in ring_buffer_resize()
619 	size *= BUF_PAGE_SIZE;  in ring_buffer_resize()
623 	if (size < BUF_PAGE_SIZE * 2)  in ring_buffer_resize()
624 		size = BUF_PAGE_SIZE * 2;  in ring_buffer_resize()
626 	if (size == buffer_size)  in ring_buffer_resize()
627 		return size;  in ring_buffer_resize()
631 	nr_pages = DIV_ROUND_UP(size, BUF_PAGE_SIZE);  in ring_buffer_resize()
633 	if (size < buffer_size) {  in ring_buffer_resize()
695 	return size;  in ring_buffer_resize()