1 /* -*- mode: c; c-basic-offset: 8; indent-tabs-mode: nil; -*-
2 * vim:expandtab:shiftwidth=8:tabstop=8:
6 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
8 * This program is free software; you can redistribute it and/or modify
9 * it under the terms of the GNU General Public License version 2 only,
10 * as published by the Free Software Foundation.
12 * This program is distributed in the hope that it will be useful, but
13 * WITHOUT ANY WARRANTY; without even the implied warranty of
14 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
15 * General Public License version 2 for more details (a copy is included
16 * in the LICENSE file that accompanied this code).
18 * You should have received a copy of the GNU General Public License
19 * version 2 along with this program; If not, see
20 * http://www.sun.com/software/products/lustre/docs/GPLv2.pdf
22 * Please contact Sun Microsystems, Inc., 4150 Network Circle, Santa Clara,
23 * CA 95054 USA or visit www.sun.com if you need additional information or
29 * Copyright (c) 2007, 2010, Oracle and/or its affiliates. All rights reserved.
30 * Use is subject to license terms.
32 * Copyright (c) 2011 Whamcloud, Inc.
36 * This file is part of Lustre, http://www.lustre.org/
37 * Lustre is a trademark of Sun Microsystems, Inc.
39 * lustre/mdd/mdd_trans.c
41 * Lustre Metadata Server (mdd) routines
43 * Author: Wang Di <wangdi@clusterfs.com>
47 # define EXPORT_SYMTAB
49 #define DEBUG_SUBSYSTEM S_MDS
51 #include <linux/module.h>
52 #ifdef HAVE_EXT4_LDISKFS
53 #include <ldiskfs/ldiskfs_jbd2.h>
55 #include <linux/jbd.h>
58 #include <obd_class.h>
59 #include <lustre_ver.h>
60 #include <obd_support.h>
61 #include <lprocfs_status.h>
63 #ifdef HAVE_EXT4_LDISKFS
64 #include <ldiskfs/ldiskfs.h>
66 #include <linux/ldiskfs_fs.h>
68 #include <lustre_mds.h>
69 #include <lustre/lustre_idl.h>
71 #include "mdd_internal.h"
73 static int dto_txn_credits[DTO_NR];
75 int mdd_txn_start_cb(const struct lu_env *env, struct txn_param *param,
78 struct mdd_device *mdd = cookie;
79 struct obd_device *obd = mdd2obd_dev(mdd);
80 /* Each transaction updates lov objids, the credits should be added for
82 int blk, shift = mdd->mdd_dt_conf.ddp_block_shift;
83 blk = ((obd->u.mds.mds_lov_desc.ld_tgt_count * sizeof(obd_id) +
84 (1 << shift) - 1) >> shift) + 1;
86 /* add lov objids credits */
87 param->tp_credits += blk * dto_txn_credits[DTO_WRITE_BLOCK] +
88 dto_txn_credits[DTO_WRITE_BASE];
93 int mdd_txn_stop_cb(const struct lu_env *env, struct thandle *txn,
96 struct mdd_device *mdd = cookie;
97 struct obd_device *obd = mdd2obd_dev(mdd);
100 return mds_lov_write_objids(obd);
103 void mdd_txn_param_build(const struct lu_env *env, struct mdd_device *mdd,
104 enum mdd_txn_op op, int changelog_cnt)
106 LASSERT(0 <= op && op < MDD_TXN_LAST_OP);
108 txn_param_init(&mdd_env_info(env)->mti_param,
109 mdd->mdd_tod[op].mod_credits);
110 if (changelog_cnt > 0) {
111 txn_param_credit_add(&mdd_env_info(env)->mti_param,
112 changelog_cnt * dto_txn_credits[DTO_LOG_REC]);
116 int mdd_create_txn_param_build(const struct lu_env *env, struct mdd_device *mdd,
117 struct lov_mds_md *lmm, enum mdd_txn_op op,
123 LASSERT(op == MDD_TXN_CREATE_DATA_OP || op == MDD_TXN_MKDIR_OP);
127 /* only replay create request will cause lov_objid update */
128 if (!mdd->mdd_obd_dev->obd_recovering)
131 /* add possible orphan unlink rec credits used in lov_objid update */
132 if (le32_to_cpu(lmm->lmm_magic) == LOV_MAGIC_V1) {
133 stripes = le32_to_cpu(((struct lov_mds_md_v1*)lmm)
135 } else if (le32_to_cpu(lmm->lmm_magic) == LOV_MAGIC_V3){
136 stripes = le32_to_cpu(((struct lov_mds_md_v3*)lmm)
139 CERROR("Unknown lmm type %X\n", le32_to_cpu(lmm->lmm_magic));
143 mdd_txn_param_build(env, mdd, op, stripes + changelog_cnt);
147 int mdd_log_txn_param_build(const struct lu_env *env, struct md_object *obj,
148 struct md_attr *ma, enum mdd_txn_op op,
151 struct mdd_device *mdd = mdo2mdd(&md2mdd_obj(obj)->mod_obj);
155 if (S_ISDIR(lu_object_attr(&obj->mo_lu)))
158 LASSERT(op == MDD_TXN_UNLINK_OP || op == MDD_TXN_RENAME_OP ||
159 op == MDD_TXN_RENAME_TGT_OP);
160 rc = mdd_lmm_get_locked(env, md2mdd_obj(obj), ma);
161 if (rc || !(ma->ma_valid & MA_LOV))
164 LASSERTF(le32_to_cpu(ma->ma_lmm->lmm_magic) == LOV_MAGIC_V1 ||
165 le32_to_cpu(ma->ma_lmm->lmm_magic) == LOV_MAGIC_V3,
166 "%08x", le32_to_cpu(ma->ma_lmm->lmm_magic));
168 if ((int)le32_to_cpu(ma->ma_lmm->lmm_stripe_count) < 0)
169 stripe = mdd2obd_dev(mdd)->u.mds.mds_lov_desc.ld_tgt_count;
171 stripe = le32_to_cpu(ma->ma_lmm->lmm_stripe_count);
174 mdd_txn_param_build(env, mdd, op, stripe + changelog_cnt);
179 void mdd_setattr_txn_param_build(const struct lu_env *env,
180 struct md_object *obj,
181 struct md_attr *ma, enum mdd_txn_op op,
184 struct mdd_device *mdd = mdo2mdd(&md2mdd_obj(obj)->mod_obj);
186 mdd_txn_param_build(env, mdd, op, changelog_cnt);
187 if (ma->ma_attr.la_valid & (LA_UID | LA_GID))
188 txn_param_credit_add(&mdd_env_info(env)->mti_param,
189 dto_txn_credits[DTO_ATTR_SET_CHOWN]);
192 static void mdd_txn_init_dto_credits(const struct lu_env *env,
193 struct mdd_device *mdd, int *dto_credits)
196 for (op = 0; op < DTO_NR; op++) {
197 credits = mdd_child_ops(mdd)->dt_credit_get(env, mdd->mdd_child,
199 LASSERT(credits >= 0);
200 dto_txn_credits[op] = credits;
204 int mdd_txn_init_credits(const struct lu_env *env, struct mdd_device *mdd)
208 /* Init credits for each ops. */
209 mdd_txn_init_dto_credits(env, mdd, dto_txn_credits);
211 /* Calculate the mdd credits. */
212 for (op = MDD_TXN_OBJECT_DESTROY_OP; op < MDD_TXN_LAST_OP; op++) {
213 int *c = &mdd->mdd_tod[op].mod_credits;
214 int *dt = dto_txn_credits;
215 mdd->mdd_tod[op].mod_op = op;
217 case MDD_TXN_OBJECT_DESTROY_OP:
219 *c = dt[DTO_OBJECT_DELETE];
221 case MDD_TXN_OBJECT_CREATE_OP:
222 /* OI INSERT + CREATE OBJECT */
223 *c = dt[DTO_INDEX_INSERT] +
224 dt[DTO_OBJECT_CREATE];
226 case MDD_TXN_ATTR_SET_OP:
227 /* ATTR set + XATTR(lsm, lmv) set */
228 *c = dt[DTO_ATTR_SET_BASE] +
231 case MDD_TXN_XATTR_SET_OP:
232 *c = dt[DTO_XATTR_SET];
234 case MDD_TXN_INDEX_INSERT_OP:
235 *c = dt[DTO_INDEX_INSERT];
237 case MDD_TXN_INDEX_DELETE_OP:
238 *c = dt[DTO_INDEX_DELETE];
240 case MDD_TXN_LINK_OP:
241 *c = dt[DTO_INDEX_INSERT];
243 case MDD_TXN_UNLINK_OP:
244 /* delete index + Unlink log +
245 * mdd orphan handling */
246 *c = dt[DTO_INDEX_DELETE] +
247 dt[DTO_INDEX_DELETE] +
248 dt[DTO_INDEX_INSERT] * 2 +
249 dt[DTO_XATTR_SET] * 3;
251 case MDD_TXN_RENAME_OP:
252 /* 2 delete index + 1 insert + Unlink log */
253 *c = 2 * dt[DTO_INDEX_DELETE] +
254 dt[DTO_INDEX_INSERT] +
255 dt[DTO_INDEX_DELETE] +
256 dt[DTO_INDEX_INSERT] * 2 +
257 dt[DTO_XATTR_SET] * 3;
259 case MDD_TXN_RENAME_TGT_OP:
260 /* index insert + index delete */
261 *c = dt[DTO_INDEX_DELETE] +
262 dt[DTO_INDEX_INSERT] +
263 dt[DTO_INDEX_DELETE] +
264 dt[DTO_INDEX_INSERT] * 2 +
265 dt[DTO_XATTR_SET] * 3;
267 case MDD_TXN_CREATE_DATA_OP:
268 /* same as set xattr(lsm) */
269 *c = dt[DTO_XATTR_SET];
271 case MDD_TXN_MKDIR_OP:
272 /* INDEX INSERT + OI INSERT +
273 * CREATE_OBJECT_CREDITS
274 * SET_MD CREDITS is already counted in
275 * CREATE_OBJECT CREDITS
277 *c = 2 * dt[DTO_INDEX_INSERT] +
278 dt[DTO_OBJECT_CREATE];
280 case MDD_TXN_CLOSE_OP:
284 CERROR("Invalid op %d init its credit\n", op);
291 struct thandle* mdd_trans_start(const struct lu_env *env,
292 struct mdd_device *mdd)
294 struct txn_param *p = &mdd_env_info(env)->mti_param;
297 th = mdd_child_ops(mdd)->dt_trans_start(env, mdd->mdd_child, p);
301 void mdd_trans_stop(const struct lu_env *env, struct mdd_device *mdd,
302 int result, struct thandle *handle)
304 handle->th_result = result;
305 mdd_child_ops(mdd)->dt_trans_stop(env, handle);