From patchwork Wed Jan 20 03:13:35 2016 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Junxiao Bi X-Patchwork-Id: 8068101 Return-Path: X-Original-To: patchwork-ocfs2-devel@patchwork.kernel.org Delivered-To: patchwork-parsemail@patchwork1.web.kernel.org Received: from mail.kernel.org (mail.kernel.org [198.145.29.136]) by patchwork1.web.kernel.org (Postfix) with ESMTP id 5D9909F440 for ; Wed, 20 Jan 2016 03:16:40 +0000 (UTC) Received: from mail.kernel.org (localhost [127.0.0.1]) by mail.kernel.org (Postfix) with ESMTP id 629552054A for ; Wed, 20 Jan 2016 03:16:39 +0000 (UTC) Received: from aserp1040.oracle.com (aserp1040.oracle.com [141.146.126.69]) (using TLSv1.2 with cipher DHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by mail.kernel.org (Postfix) with ESMTPS id 382502026F for ; Wed, 20 Jan 2016 03:16:38 +0000 (UTC) Received: from aserv0021.oracle.com (aserv0021.oracle.com [141.146.126.233]) by aserp1040.oracle.com (Sentrion-MTA-4.3.2/Sentrion-MTA-4.3.2) with ESMTP id u0K3Fek7025342 (version=TLSv1 cipher=DHE-RSA-AES256-SHA bits=256 verify=FAIL); Wed, 20 Jan 2016 03:15:41 GMT Received: from oss.oracle.com (oss-old-reserved.oracle.com [137.254.22.2]) by aserv0021.oracle.com (8.13.8/8.13.8) with ESMTP id u0K3FeD2023562 (version=TLSv1/SSLv3 cipher=DHE-RSA-AES256-SHA bits=256 verify=NO); Wed, 20 Jan 2016 03:15:40 GMT Received: from localhost ([127.0.0.1] helo=lb-oss.oracle.com) by oss.oracle.com with esmtp (Exim 4.63) (envelope-from ) id 1aLjFD-0002ie-CL; Tue, 19 Jan 2016 19:15:39 -0800 Received: from userv0021.oracle.com ([156.151.31.71]) by oss.oracle.com with esmtp (Exim 4.63) (envelope-from ) id 1aLjEm-0002gp-Ng for ocfs2-devel@oss.oracle.com; Tue, 19 Jan 2016 19:15:12 -0800 Received: from aserv0122.oracle.com (aserv0122.oracle.com [141.146.126.236]) by userv0021.oracle.com (8.13.8/8.13.8) with ESMTP id u0K3FChZ008447 (version=TLSv1/SSLv3 cipher=DHE-RSA-AES256-SHA bits=256 verify=FAIL); Wed, 20 Jan 2016 03:15:12 GMT Received: from abhmp0003.oracle.com (abhmp0003.oracle.com [141.146.116.9]) by aserv0122.oracle.com (8.13.8/8.13.8) with ESMTP id u0K3FBFx018044; Wed, 20 Jan 2016 03:15:12 GMT Received: from bijx-OptiPlex-780.cn.oracle.com (/10.182.32.177) by default (Oracle Beehive Gateway v4.0) with ESMTP ; Tue, 19 Jan 2016 19:15:11 -0800 From: Junxiao Bi To: ocfs2-devel@oss.oracle.com Date: Wed, 20 Jan 2016 11:13:35 +0800 Message-Id: <1453259619-5347-3-git-send-email-junxiao.bi@oracle.com> X-Mailer: git-send-email 1.7.9.5 In-Reply-To: <1453259619-5347-1-git-send-email-junxiao.bi@oracle.com> References: <1453259619-5347-1-git-send-email-junxiao.bi@oracle.com> Cc: mfasheh@suse.com Subject: [Ocfs2-devel] [PATCH 2/6] ocfs2: o2hb: add NEGO_TIMEOUT message X-BeenThere: ocfs2-devel@oss.oracle.com X-Mailman-Version: 2.1.9 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , MIME-Version: 1.0 Sender: ocfs2-devel-bounces@oss.oracle.com Errors-To: ocfs2-devel-bounces@oss.oracle.com X-Source-IP: aserv0021.oracle.com [141.146.126.233] X-Spam-Status: No, score=-4.2 required=5.0 tests=BAYES_00, RCVD_IN_DNSWL_MED, RP_MATCHES_RCVD, UNPARSEABLE_RELAY autolearn=unavailable version=3.3.1 X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on mail.kernel.org X-Virus-Scanned: ClamAV using ClamSMTP This message is sent to master node when non-master nodes's negotiate timer expired. Master node records these nodes in a bitmap which is used to do write timeout timer re-queue decision. Signed-off-by: Junxiao Bi Reviewed-by: Ryan Ding --- fs/ocfs2/cluster/heartbeat.c | 66 +++++++++++++++++++++++++++++++++++++++++- 1 file changed, 65 insertions(+), 1 deletion(-) diff --git a/fs/ocfs2/cluster/heartbeat.c b/fs/ocfs2/cluster/heartbeat.c index b601ee95de50..ecf8a5e21c38 100644 --- a/fs/ocfs2/cluster/heartbeat.c +++ b/fs/ocfs2/cluster/heartbeat.c @@ -280,6 +280,10 @@ struct o2hb_region { * being checked because we temporarily have to zero out the * crc field. */ struct o2hb_disk_heartbeat_block *hr_tmp_block; + + /* Message key for negotiate timeout message. */ + unsigned int hr_key; + struct list_head hr_handler_list; }; struct o2hb_bio_wait_ctxt { @@ -288,6 +292,14 @@ struct o2hb_bio_wait_ctxt { int wc_error; }; +enum { + O2HB_NEGO_TIMEOUT_MSG = 1, +}; + +struct o2hb_nego_msg { + u8 node_num; +}; + static void o2hb_write_timeout(struct work_struct *work) { int failed, quorum; @@ -356,6 +368,24 @@ static void o2hb_disarm_timeout(struct o2hb_region *reg) cancel_delayed_work_sync(®->hr_nego_timeout_work); } +static int o2hb_send_nego_msg(int key, int type, u8 target) +{ + struct o2hb_nego_msg msg; + int status, ret; + + msg.node_num = o2nm_this_node(); +again: + ret = o2net_send_message(type, key, &msg, sizeof(msg), + target, &status); + + if (ret == -EAGAIN || ret == -ENOMEM) { + msleep(100); + goto again; + } + + return ret; +} + static void o2hb_nego_timeout(struct work_struct *work) { struct o2hb_region *reg = @@ -384,8 +414,24 @@ static void o2hb_nego_timeout(struct work_struct *work) /* approve negotiate timeout request. */ } else { /* negotiate timeout with master node. */ + o2hb_send_nego_msg(reg->hr_key, O2HB_NEGO_TIMEOUT_MSG, + master_node); } +} + +static int o2hb_nego_timeout_handler(struct o2net_msg *msg, u32 len, void *data, + void **ret_data) +{ + struct o2hb_region *reg = (struct o2hb_region *)data; + struct o2hb_nego_msg *nego_msg; + nego_msg = (struct o2hb_nego_msg *)msg->buf; + if (nego_msg->node_num < O2NM_MAX_NODES) + set_bit(nego_msg->node_num, reg->hr_nego_node_bitmap); + else + mlog(ML_ERROR, "got nego timeout message from bad node.\n"); + + return 0; } static inline void o2hb_bio_wait_init(struct o2hb_bio_wait_ctxt *wc) @@ -1493,6 +1539,7 @@ static void o2hb_region_release(struct config_item *item) list_del(®->hr_all_item); spin_unlock(&o2hb_live_lock); + o2net_unregister_handler_list(®->hr_handler_list); kfree(reg); } @@ -2039,13 +2086,30 @@ static struct config_item *o2hb_heartbeat_group_make_item(struct config_group *g config_item_init_type_name(®->hr_item, name, &o2hb_region_type); + /* this is the same way to generate msg key as dlm, for local heartbeat, + * name is also the same, so make initial crc value different to avoid + * message key conflict. + */ + reg->hr_key = crc32_le(reg->hr_region_num + O2NM_MAX_REGIONS, + name, strlen(name)); + INIT_LIST_HEAD(®->hr_handler_list); + ret = o2net_register_handler(O2HB_NEGO_TIMEOUT_MSG, reg->hr_key, + sizeof(struct o2hb_nego_msg), + o2hb_nego_timeout_handler, + reg, NULL, ®->hr_handler_list); + if (ret) + goto free; + ret = o2hb_debug_region_init(reg, o2hb_debug_dir); if (ret) { config_item_put(®->hr_item); - goto free; + goto free_handler; } return ®->hr_item; + +free_handler: + o2net_unregister_handler_list(®->hr_handler_list); free: kfree(reg); return ERR_PTR(ret);