Merge branch 'tip/tracing/urgent' of...

	 * Splice the empty reader page into the list around the head.

	 */

	reader = rb_set_head_page(cpu_buffer);

	cpu_buffer->reader_page->list.next = reader->list.next;

	cpu_buffer->reader_page->list.next = rb_list_head(reader->list.next);

	cpu_buffer->reader_page->list.prev = reader->list.prev;

	/*

	 *

	 * Now make the new head point back to the reader page.

	 */

	reader->list.next->prev = &cpu_buffer->reader_page->list;

	rb_list_head(reader->list.next)->prev = &cpu_buffer->reader_page->list;

	rb_inc_page(cpu_buffer, &cpu_buffer->head_page);

	/* Finally update the reader page to the new head */