Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S933645AbbFJHug (ORCPT ); Wed, 10 Jun 2015 03:50:36 -0400 Received: from victor.provo.novell.com ([137.65.250.26]:44194 "EHLO prv3-mh.provo.novell.com" rhost-flags-OK-OK-OK-FAIL) by vger.kernel.org with ESMTP id S933550AbbFJHtT (ORCPT ); Wed, 10 Jun 2015 03:49:19 -0400 From: Nick Wang To: philipp.reisner@linbit.com, lars.ellenberg@linbit.com, drbd-dev@lists.linbit.com Cc: linux-kernel@vger.kernel.org, nwang@suse.com Subject: [PATCH 07/10] Using P_ZERO_OUT to send back device zero out status. Date: Wed, 10 Jun 2015 15:48:26 +0800 Message-Id: <1433922509-10280-8-git-send-email-nwang@suse.com> X-Mailer: git-send-email 1.8.4.5 In-Reply-To: <1433922509-10280-1-git-send-email-nwang@suse.com> References: <1433922509-10280-1-git-send-email-nwang@suse.com> Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 2580 Lines: 73 Send back status of zero out device to peer node. 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_int.h | 2 ++ drbd/drbd_main.c | 28 ++++++++++++++++++++++++++++ 2 files changed, 30 insertions(+) diff --git a/drbd/drbd_int.h b/drbd/drbd_int.h index b49095e..e956eb4 100644 --- a/drbd/drbd_int.h +++ b/drbd/drbd_int.h @@ -1210,6 +1210,8 @@ extern int drbd_send_protocol(struct drbd_connection *connection); extern int drbd_send_uuids(struct drbd_peer_device *); extern int drbd_send_uuids_skip_initial_sync(struct drbd_peer_device *); extern int drbd_send_zero_out_start(struct drbd_peer_device *); +extern int drbd_send_zero_out_ok(struct drbd_peer_device *); +extern int drbd_send_zero_out_fail(struct drbd_peer_device *); extern void drbd_gen_and_send_sync_uuid(struct drbd_peer_device *); extern int drbd_send_sizes(struct drbd_peer_device *peer_device, int trigger_reply, enum dds_flags flags); extern int drbd_send_state(struct drbd_peer_device *, union drbd_state); diff --git a/drbd/drbd_main.c b/drbd/drbd_main.c index 841ed30..5892ff3 100644 --- a/drbd/drbd_main.c +++ b/drbd/drbd_main.c @@ -913,6 +913,34 @@ int drbd_send_zero_out_start(struct drbd_peer_device *peer_device) return _drbd_send_uuids(peer_device, 16); } +/** + * _drbd_send_zero_out_state() - Sends the drbd state to the peer + * @peer_device: DRBD peer device. + * @state: Device zero out status. + */ +static int _drbd_send_zero_out_state(struct drbd_peer_device *peer_device, unsigned int status) +{ + struct drbd_socket *sock; + struct p_state *p; + + sock = &peer_device->connection->data; + p = drbd_prepare_command(peer_device, sock); + if (!p) + return -EIO; + p->state = cpu_to_be32(status); + return drbd_send_command(peer_device, sock, P_ZERO_OUT, sizeof(*p), NULL, 0); +} + +int drbd_send_zero_out_ok(struct drbd_peer_device *peer_device) +{ + return _drbd_send_zero_out_state(peer_device, 0); +} + +int drbd_send_zero_out_fail(struct drbd_peer_device *peer_device) +{ + return _drbd_send_zero_out_state(peer_device, 1); +} + void drbd_print_uuids(struct drbd_device *device, const char *text) { if (get_ldev_if_state(device, D_NEGOTIATING)) { -- 1.8.4.5 -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/