From mboxrd@z Thu Jan 1 00:00:00 1970 From: Luis Pabon Subject: Cache tier READ_FORWARD transition Date: Mon, 07 Jul 2014 12:29:55 -0400 Message-ID: <53BACB03.5010603@redhat.com> Mime-Version: 1.0 Content-Type: text/plain; charset=ISO-8859-1; format=flowed Content-Transfer-Encoding: 7bit Return-path: Received: from mx1.redhat.com ([209.132.183.28]:54433 "EHLO mx1.redhat.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1750957AbaGGQ34 (ORCPT ); Mon, 7 Jul 2014 12:29:56 -0400 Received: from int-mx11.intmail.prod.int.phx2.redhat.com (int-mx11.intmail.prod.int.phx2.redhat.com [10.5.11.24]) by mx1.redhat.com (8.14.4/8.14.4) with ESMTP id s67GTuJi015576 (version=TLSv1/SSLv3 cipher=DHE-RSA-AES256-GCM-SHA384 bits=256 verify=OK) for ; Mon, 7 Jul 2014 12:29:56 -0400 Received: from localhost.localdomain (vpn-61-233.rdu2.redhat.com [10.10.61.233]) by int-mx11.intmail.prod.int.phx2.redhat.com (8.14.4/8.14.4) with ESMTP id s67GTtNn027776 for ; Mon, 7 Jul 2014 12:29:55 -0400 Sender: ceph-devel-owner@vger.kernel.org List-ID: To: "ceph-devel@vger.kernel.org" Hi all, I am working on OSDMonitor.cc:5325 and wanted to confirm the following read_forward cache tier transition: readforward -> forward || writeback || (any && num_objects_dirty == 0) forward -> writeback || readforward || (any && num_objects_dirty == 0) writeback -> readforward || forward Is this the correct cache tier state transition? - Luis