From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from prv3-mh.provo.novell.com (victor.provo.novell.com [137.65.250.26]) (using TLSv1 with cipher ADH-AES256-SHA (256/256 bits)) (No client certificate requested) by mail09.linbit.com (LINBIT Mail Daemon) with ESMTPS id D79D010556B0 for ; Wed, 10 Jun 2015 09:49:21 +0200 (CEST) From: Nick Wang To: philipp.reisner@linbit.com, lars.ellenberg@linbit.com, drbd-dev@lists.linbit.com Date: Wed, 10 Jun 2015 15:48:27 +0800 Message-Id: <1433922509-10280-9-git-send-email-nwang@suse.com> In-Reply-To: <1433922509-10280-1-git-send-email-nwang@suse.com> References: <1433922509-10280-1-git-send-email-nwang@suse.com> Cc: linux-kernel@vger.kernel.org Subject: [Drbd-dev] [PATCH 08/10] Receive UI_FLAGS 16 of P_UUIDS to start zero out devices. List-Id: "*Coordination* of development, patches, contributions -- *Questions* \(even to developers\) go to drbd-user, please." List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Receive P_UUIDS protocol to start zero out device. Signed-off-by: Nick Wang CC: Philipp Reisner CC: Lars Ellenberg CC: drbd-dev@lists.linbit.com CC: linux-kernel@vger.kernel.org --- drbd/drbd_receiver.c | 23 +++++++++++++++++++++++ 1 file changed, 23 insertions(+) diff --git a/drbd/drbd_receiver.c b/drbd/drbd_receiver.c index 41c958a..cbb66e6 100644 --- a/drbd/drbd_receiver.c +++ b/drbd/drbd_receiver.c @@ -4304,6 +4304,7 @@ static int receive_uuids(struct drbd_connection *connection, struct packet_info struct p_uuids *p = pi->data; u64 *p_uuid; int i, updated_uuids = 0; + int zero_out_err = 0; peer_device = conn_peer_device(connection, pi->vnr); if (!peer_device) @@ -4338,6 +4339,11 @@ static int receive_uuids(struct drbd_connection *connection, struct packet_info peer_device->connection->agreed_pro_version >= 90 && device->ldev->md.uuid[UI_CURRENT] == UUID_JUST_CREATED && (p_uuid[UI_FLAGS] & 8); + int zero_out_devices = + device->state.conn == C_CONNECTED && + peer_device->connection->agreed_pro_version >= 90 && + device->ldev->md.uuid[UI_CURRENT] == UUID_JUST_CREATED && + (p_uuid[UI_FLAGS] & 16); if (skip_initial_sync) { drbd_info(device, "Accepted new current UUID, preparing to skip initial sync\n"); drbd_bitmap_io(device, &drbd_bmio_clear_n_write, @@ -4350,6 +4356,23 @@ static int receive_uuids(struct drbd_connection *connection, struct packet_info drbd_md_sync(device); updated_uuids = 1; } + + if (zero_out_devices) { + drbd_info(device, "Accepted to zero out devices, will take a long time\n"); + _drbd_uuid_set(device, UI_CURRENT, p_uuid[UI_CURRENT]); + _drbd_uuid_set(device, UI_BITMAP, 0); + drbd_print_uuids(device, "cleared bitmap UUID for zeroing device"); + zero_out_err = zero_out_local_device(device); + if (zero_out_err) { + drbd_err(device, "Failed to zero out local device\n"); + drbd_send_zero_out_fail(peer_device); + drbd_chk_io_error(device, 1, DRBD_WRITE_ERROR); + } else { + drbd_info(device, "Finish zero out device\n"); + drbd_send_zero_out_ok(peer_device); + } + } + put_ldev(device); } else if (device->state.disk < D_INCONSISTENT && device->state.role == R_PRIMARY) { -- 1.8.4.5