From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S932762Ab1IHMtz (ORCPT ); Thu, 8 Sep 2011 08:49:55 -0400 Received: from mail09.linbit.com ([212.69.161.110]:37526 "EHLO mail09.linbit.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S932664Ab1IHMpl (ORCPT ); Thu, 8 Sep 2011 08:45:41 -0400 From: Philipp Reisner To: linux-kernel@vger.kernel.org, Jens Axboe Cc: drbd-dev@lists.linbit.com Subject: [PATCH 04/16] drbd: Allow to disconnect if one volume is diskless Date: Thu, 8 Sep 2011 14:45:25 +0200 Message-Id: <1315485937-18989-5-git-send-email-philipp.reisner@linbit.com> X-Mailer: git-send-email 1.7.4.1 In-Reply-To: <1315485937-18989-1-git-send-email-philipp.reisner@linbit.com> References: <1315485937-18989-1-git-send-email-philipp.reisner@linbit.com> Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Signed-off-by: Philipp Reisner Signed-off-by: Lars Ellenberg --- drivers/block/drbd/drbd_receiver.c | 2 +- drivers/block/drbd/drbd_state.c | 6 ++++++ drivers/block/drbd/drbd_state.h | 1 + 3 files changed, 8 insertions(+), 1 deletions(-) diff --git a/drivers/block/drbd/drbd_receiver.c b/drivers/block/drbd/drbd_receiver.c index 0301775..e45a417 100644 --- a/drivers/block/drbd/drbd_receiver.c +++ b/drivers/block/drbd/drbd_receiver.c @@ -3450,7 +3450,7 @@ static int receive_req_conn_state(struct drbd_tconn *tconn, struct packet_info * mask = convert_state(mask); val = convert_state(val); - rv = conn_request_state(tconn, mask, val, CS_VERBOSE | CS_LOCAL_ONLY); + rv = conn_request_state(tconn, mask, val, CS_VERBOSE | CS_LOCAL_ONLY | CS_IGN_OUTD_FAIL); conn_send_sr_reply(tconn, rv); return 0; diff --git a/drivers/block/drbd/drbd_state.c b/drivers/block/drbd/drbd_state.c index ea2bf74..c73be9e 100644 --- a/drivers/block/drbd/drbd_state.c +++ b/drivers/block/drbd/drbd_state.c @@ -1415,6 +1415,9 @@ conn_is_valid_transition(struct drbd_tconn *tconn, union drbd_state mask, union os = mdev->state; ns = sanitize_state(mdev, apply_mask_val(os, mask, val), NULL); + if (flags & CS_IGN_OUTD_FAIL && ns.disk == D_OUTDATED && os.disk < D_OUTDATED) + ns.disk = os.disk; + if (ns.i == os.i) continue; @@ -1456,6 +1459,9 @@ conn_set_state(struct drbd_tconn *tconn, union drbd_state mask, union drbd_state ns = apply_mask_val(os, mask, val); ns = sanitize_state(mdev, ns, NULL); + if (flags & CS_IGN_OUTD_FAIL && ns.disk == D_OUTDATED && os.disk < D_OUTDATED) + ns.disk = os.disk; + rv = __drbd_set_state(mdev, ns, flags, NULL); if (rv < SS_SUCCESS) BUG(); diff --git a/drivers/block/drbd/drbd_state.h b/drivers/block/drbd/drbd_state.h index 11fd0f8..c0331f1 100644 --- a/drivers/block/drbd/drbd_state.h +++ b/drivers/block/drbd/drbd_state.h @@ -69,6 +69,7 @@ enum chg_state_flags { CS_DC_DISK = 1 << 8, CS_DC_PDSK = 1 << 9, CS_DC_MASK = CS_DC_ROLE + CS_DC_PEER + CS_DC_CONN + CS_DC_DISK + CS_DC_PDSK, + CS_IGN_OUTD_FAIL = 1 << 10, }; extern enum drbd_state_rv drbd_change_state(struct drbd_conf *mdev, -- 1.7.4.1