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7 * it under the terms of the GNU General Public License version 2 only,
8 * as published by the Free Software Foundation.
10 * This program is distributed in the hope that it will be useful, but
11 * WITHOUT ANY WARRANTY; without even the implied warranty of
12 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
13 * General Public License version 2 for more details (a copy is included
14 * in the LICENSE file that accompanied this code).
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17 * version 2 along with this program; If not, see
18 * http://www.sun.com/software/products/lustre/docs/GPLv2.pdf
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21 * CA 95054 USA or visit www.sun.com if you need additional information or
27 * Copyright (c) 2009, 2010, Oracle and/or its affiliates. All rights reserved.
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30 * Copyright (c) 2012, 2013, Intel Corporation.
33 * This file is part of Lustre, http://www.lustre.org/
34 * Lustre is a trademark of Sun Microsystems, Inc.
36 * lustre/ofd/ofd_recovery.c
38 * Author: Alex Zhuravlev <bzzz@whamcloud.com>
39 * Author: Mikhail Pershin <tappro@whamcloud.com>
42 #define DEBUG_SUBSYSTEM S_FILTER
44 #include "ofd_internal.h"
46 struct thandle *ofd_trans_create(const struct lu_env *env,
47 struct ofd_device *ofd)
49 struct ofd_thread_info *info = ofd_info(env);
54 th = dt_trans_create(env, ofd->ofd_osd);
58 /* export can require sync operations */
59 if (info->fti_exp != NULL)
60 th->th_sync |= info->fti_exp->exp_need_sync;
64 int ofd_trans_start(const struct lu_env *env, struct ofd_device *ofd,
65 struct ofd_object *obj, struct thandle *th)
67 struct ofd_thread_info *info = ofd_info(env);
70 if (env->le_ses == NULL || info->fti_exp == NULL)
73 /* declare last_rcvd update */
74 rc = dt_declare_record_write(env, ofd->ofd_lut.lut_last_rcvd,
75 sizeof(struct lsd_client_data),
76 info->fti_exp->exp_target_data.ted_lr_off,
81 /* declare last_rcvd header update */
82 rc = dt_declare_record_write(env, ofd->ofd_lut.lut_last_rcvd,
83 sizeof(ofd->ofd_lut.lut_lsd), 0, th);
87 /* version change is required for this object */
89 ofd_info(env)->fti_obj = obj;
90 rc = dt_declare_version_set(env, ofd_object_child(obj), th);
95 return dt_trans_start(env, ofd->ofd_osd, th);
98 void ofd_trans_stop(const struct lu_env *env, struct ofd_device *ofd,
99 struct thandle *th, int rc)
102 dt_trans_stop(env, ofd->ofd_osd, th);
105 /* Update last_rcvd records with the latest transaction data */
106 int ofd_txn_stop_cb(const struct lu_env *env, struct thandle *txn,
109 struct ofd_device *ofd = cookie;
110 struct ofd_thread_info *info = ofd_info(env);
111 struct dt_object *obj;
112 struct tgt_session_info *tsi;
118 if (env->le_ses == NULL || info->fti_exp == NULL)
121 tsi = tgt_ses_info(env);
123 echo_client = (tgt_ses_req(tsi) == NULL);
125 if (info->fti_has_trans && !echo_client) {
126 if (info->fti_mult_trans == 0) {
127 CERROR("More than one transaction "LPU64"\n",
131 /* we need another transno to be assigned */
132 info->fti_transno = 0;
133 } else if (txn->th_result == 0) {
134 info->fti_has_trans = 1;
137 /** VBR: set new versions */
138 if (info->fti_obj != NULL)
139 obj = ofd_object_child(info->fti_obj);
143 if (unlikely(echo_client)) /* echo client special case */
144 rc = tgt_last_rcvd_update_echo(env, &ofd->ofd_lut, obj, txn,
147 rc = tgt_last_rcvd_update(env, &ofd->ofd_lut, obj, 0, txn,