-/* -*- mode: c; c-basic-offset: 8; indent-tabs-mode: nil; -*-
- * vim:expandtab:shiftwidth=8:tabstop=8:
+/*
+ * GPL HEADER START
*
- * Copyright (C) 2001-2003 Cluster File Systems, Inc.
- * Author: Andreas Dilger <adilger@clusterfs.com>
+ * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
*
- * This file is part of Lustre, http://www.lustre.org.
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License version 2 only,
+ * as published by the Free Software Foundation.
*
- * Lustre is free software; you can redistribute it and/or
- * modify it under the terms of version 2 of the GNU General Public
- * License as published by the Free Software Foundation.
+ * This program is distributed in the hope that it will be useful, but
+ * WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+ * General Public License version 2 for more details (a copy is included
+ * in the LICENSE file that accompanied this code).
*
- * Lustre is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
- * GNU General Public License for more details.
+ * You should have received a copy of the GNU General Public License
+ * version 2 along with this program; If not, see
+ * http://www.sun.com/software/products/lustre/docs/GPLv2.pdf
*
- * You should have received a copy of the GNU General Public License
- * along with Lustre; if not, write to the Free Software
- * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
+ * Please contact Sun Microsystems, Inc., 4150 Network Circle, Santa Clara,
+ * CA 95054 USA or visit www.sun.com if you need additional information or
+ * have any questions.
+ *
+ * GPL HEADER END
+ */
+/*
+ * Copyright (c) 2003, 2010, Oracle and/or its affiliates. All rights reserved.
+ * Use is subject to license terms.
+ */
+/*
+ * This file is part of Lustre, http://www.lustre.org/
+ * Lustre is a trademark of Sun Microsystems, Inc.
+ *
+ * lustre/ptlrpc/llog_net.c
*
* OST<->MDS recovery logging infrastructure.
*
* Invariants in implementation:
* - we do not share logs among different OST<->MDS connections, so that
* if an OST or MDS fails it need only look at log(s) relevant to itself
+ *
+ * Author: Andreas Dilger <adilger@clusterfs.com>
*/
#define DEBUG_SUBSYSTEM S_LOG
-#ifndef EXPORT_SYMTAB
-#define EXPORT_SYMTAB
-#endif
-
#ifdef __KERNEL__
-#include <linux/fs.h>
+#include <libcfs/libcfs.h>
#else
#include <liblustre.h>
#endif
-#include <linux/obd_class.h>
-#include <linux/lustre_log.h>
-#include <portals/list.h>
-#include <linux/lvfs.h>
+#include <obd_class.h>
+#include <lustre_log.h>
+#include <libcfs/list.h>
+#include <lvfs.h>
+#include <lustre_fsfilt.h>
#ifdef __KERNEL__
-int llog_origin_connect(struct llog_ctxt *ctxt, int count,
+int llog_origin_connect(struct llog_ctxt *ctxt,
struct llog_logid *logid, struct llog_gen *gen,
struct obd_uuid *uuid)
{
- struct llog_gen_rec *lgr;
- struct obd_import *imp;
- struct ptlrpc_request *request;
+ struct llog_gen_rec *lgr;
+ struct ptlrpc_request *req;
struct llogd_conn_body *req_body;
- int size = sizeof(struct llogd_conn_body);
- int rc;
+ struct inode* inode = ctxt->loc_handle->lgh_file->f_dentry->d_inode;
+ void *handle;
+ int rc, rc1;
+
ENTRY;
- if (list_empty(&ctxt->loc_handle->u.chd.chd_head)) {
+ if (cfs_list_empty(&ctxt->loc_handle->u.chd.chd_head)) {
CDEBUG(D_HA, "there is no record related to ctxt %p\n", ctxt);
RETURN(0);
}
/* FIXME what value for gen->conn_cnt */
- LLOG_GEN_INC(ctxt->loc_gen);
+ llog_gen_init(ctxt);
/* first add llog_gen_rec */
- OBD_ALLOC(lgr, sizeof(*lgr));
+ OBD_ALLOC_PTR(lgr);
if (!lgr)
RETURN(-ENOMEM);
lgr->lgr_hdr.lrh_len = lgr->lgr_tail.lrt_len = sizeof(*lgr);
lgr->lgr_hdr.lrh_type = LLOG_GEN_REC;
+
+ handle = fsfilt_start_log(ctxt->loc_exp->exp_obd, inode,
+ FSFILT_OP_CANCEL_UNLINK, NULL, 1);
+ if (IS_ERR(handle)) {
+ CERROR("fsfilt_start failed: %ld\n", PTR_ERR(handle));
+ OBD_FREE(lgr, sizeof(*lgr));
+ rc = PTR_ERR(handle);
+ RETURN(rc);
+ }
+
lgr->lgr_gen = ctxt->loc_gen;
- rc = llog_add(ctxt, &lgr->lgr_hdr, NULL, NULL, 1, NULL);
- OBD_FREE(lgr, sizeof(*lgr));
- if (rc != 1)
+ rc = llog_add(NULL, ctxt, &lgr->lgr_hdr, NULL, NULL, 1);
+ OBD_FREE_PTR(lgr);
+ rc1 = fsfilt_commit(ctxt->loc_exp->exp_obd, inode, handle, 0);
+ if (rc != 1 || rc1 != 0) {
+ rc = (rc != 1) ? rc : rc1;
RETURN(rc);
+ }
LASSERT(ctxt->loc_imp);
- imp = ctxt->loc_imp;
-
- request = ptlrpc_prep_req(imp, LLOG_ORIGIN_CONNECT, 1, &size, NULL);
- if (!request)
+ req = ptlrpc_request_alloc_pack(ctxt->loc_imp, &RQF_LLOG_ORIGIN_CONNECT,
+ LUSTRE_LOG_VERSION,
+ LLOG_ORIGIN_CONNECT);
+ if (req == NULL)
RETURN(-ENOMEM);
- req_body = lustre_msg_buf(request->rq_reqmsg, 0, sizeof(*req_body));
+ CDEBUG(D_OTHER, "%s mount_count "LPU64", connection count "LPU64"\n",
+ ctxt->loc_exp->exp_obd->obd_type->typ_name,
+ ctxt->loc_gen.mnt_cnt, ctxt->loc_gen.conn_cnt);
+ req_body = req_capsule_client_get(&req->rq_pill, &RMF_LLOGD_CONN_BODY);
req_body->lgdc_gen = ctxt->loc_gen;
req_body->lgdc_logid = ctxt->loc_handle->lgh_id;
req_body->lgdc_ctxt_idx = ctxt->loc_idx + 1;
- request->rq_replen = lustre_msg_size(0, NULL);
+ ptlrpc_request_set_replen(req);
- rc = ptlrpc_queue_wait(request);
- ptlrpc_req_finished(request);
+ req->rq_no_resend = req->rq_no_delay = 1;
+ rc = ptlrpc_queue_wait(req);
+ ptlrpc_req_finished(req);
RETURN(rc);
}
int rc;
ENTRY;
- req_body = lustre_msg_buf(req->rq_reqmsg, 0, sizeof(*req_body));
+ req_body = req_capsule_client_get(&req->rq_pill, &RMF_LLOGD_CONN_BODY);
ctxt = llog_get_context(obd, req_body->lgdc_ctxt_idx);
- rc = llog_connect(ctxt, 1, &req_body->lgdc_logid,
+ rc = llog_connect(ctxt, &req_body->lgdc_logid,
&req_body->lgdc_gen, NULL);
+
+ llog_ctxt_put(ctxt);
if (rc != 0)
CERROR("failed at llog_relp_connect\n");
int llog_receptor_accept(struct llog_ctxt *ctxt, struct obd_import *imp)
{
ENTRY;
- LASSERT(ctxt);
- ctxt->loc_imp = imp;
- RETURN(0);
-}
-EXPORT_SYMBOL(llog_receptor_accept);
-int llog_initiator_connect(struct llog_ctxt *ctxt)
-{
- ENTRY;
LASSERT(ctxt);
- ctxt->loc_imp = ctxt->loc_obd->u.cli.cl_import;
+ cfs_mutex_lock(&ctxt->loc_mutex);
+ if (ctxt->loc_imp != imp) {
+ if (ctxt->loc_imp) {
+ CWARN("changing the import %p - %p\n",
+ ctxt->loc_imp, imp);
+ class_import_put(ctxt->loc_imp);
+ }
+ ctxt->loc_imp = class_import_get(imp);
+ }
+ cfs_mutex_unlock(&ctxt->loc_mutex);
RETURN(0);
}
-EXPORT_SYMBOL(llog_initiator_connect);
+EXPORT_SYMBOL(llog_receptor_accept);
#else /* !__KERNEL__ */
-int llog_origin_connect(struct llog_ctxt *ctxt, int count,
+int llog_origin_connect(struct llog_ctxt *ctxt,
struct llog_logid *logid, struct llog_gen *gen,
struct obd_uuid *uuid)
{
return 0;
}
+#endif
int llog_initiator_connect(struct llog_ctxt *ctxt)
{
- return 0;
+ struct obd_import *new_imp;
+ ENTRY;
+
+ LASSERT(ctxt);
+ new_imp = ctxt->loc_obd->u.cli.cl_import;
+ LASSERTF(ctxt->loc_imp == NULL || ctxt->loc_imp == new_imp,
+ "%p - %p\n", ctxt->loc_imp, new_imp);
+ cfs_mutex_lock(&ctxt->loc_mutex);
+ if (ctxt->loc_imp != new_imp) {
+ if (ctxt->loc_imp)
+ class_import_put(ctxt->loc_imp);
+ ctxt->loc_imp = class_import_get(new_imp);
+ }
+ cfs_mutex_unlock(&ctxt->loc_mutex);
+ RETURN(0);
}
-#endif
+EXPORT_SYMBOL(llog_initiator_connect);
git://git.whamcloud.com / fs / lustre-release.git / blobdiff