lustre/include/lustre_update.h

   1 /* SPDX-License-Identifier: GPL-2.0 */
   2
   3 /*
   4  * Copyright (c) 2013, 2017, Intel Corporation.
   5  */
   6
   7 /*
   8  * This file is part of Lustre, http://www.lustre.org/
   9  *
  10  * Author: Di Wang <di.wang@intel.com>
  11  */
  12
  13 #ifndef _LUSTRE_UPDATE_H
  14 #define _LUSTRE_UPDATE_H
  15 #include <dt_object.h>
  16 #include <lustre_net.h>
  17 #include <obj_update.h>
  18
  19 #define OUT_UPDATE_REPLY_SIZE           4096
  20 #define OUT_BULK_BUFFER_SIZE            4096
  21
  22 struct dt_key;
  23 struct dt_rec;
  24 struct object_update_param;
  25 struct llog_update_record;
  26
  27 static inline size_t update_params_size(const struct update_params *params,
  28                                         unsigned int param_count)
  29 {
  30         struct object_update_param      *param;
  31         size_t total_size = sizeof(*params);
  32         unsigned int i;
  33
  34         param = (struct object_update_param *)&params->up_params[0];
  35         for (i = 0; i < param_count; i++) {
  36                 size_t size = object_update_param_size(param);
  37
  38                 param = (struct object_update_param *)((char *)param + size);
  39                 total_size += size;
  40         }
  41
  42         return total_size;
  43 }
  44
  45 static inline struct object_update_param *
  46 update_params_get_param(const struct update_params *params,
  47                         unsigned int index, unsigned int param_count)
  48 {
  49         struct object_update_param *param;
  50         unsigned int            i;
  51
  52         if (index > param_count)
  53                 return NULL;
  54
  55         param = (struct object_update_param *)&params->up_params[0];
  56         for (i = 0; i < index; i++)
  57                 param = (struct object_update_param *)((char *)param +
  58                         object_update_param_size(param));
  59
  60         return param;
  61 }
  62
  63 static inline void*
  64 update_params_get_param_buf(const struct update_params *params, __u16 index,
  65                             unsigned int param_count, __u16 *size)
  66 {
  67         struct object_update_param *param;
  68
  69         param = update_params_get_param(params, (unsigned int)index,
  70                                         param_count);
  71         if (param == NULL)
  72                 return NULL;
  73
  74         if (size != NULL)
  75                 *size = param->oup_len;
  76
  77         return param->oup_buf;
  78 }
  79
  80 static inline size_t
  81 update_op_size(unsigned int param_count)
  82 {
  83         return offsetof(struct update_op, uop_params_off[param_count]);
  84 }
  85
  86 static inline struct update_op *
  87 update_op_next_op(const struct update_op *uop)
  88 {
  89         return (struct update_op *)((char *)uop +
  90                                 update_op_size(uop->uop_param_count));
  91 }
  92
  93 static inline size_t update_ops_size(const struct update_ops *ops,
  94                                      unsigned int update_count)
  95 {
  96         struct update_op *op;
  97         size_t total_size = sizeof(*ops);
  98         unsigned int i;
  99
 100         op = (struct update_op *)&ops->uops_op[0];
 101         for (i = 0; i < update_count; i++, op = update_op_next_op(op))
 102                 total_size += update_op_size(op->uop_param_count);
 103
 104         return total_size;
 105 }
 106
 107 static inline struct update_params *
 108 update_records_get_params(const struct update_records *record)
 109 {
 110         return (struct update_params *)((char *)record +
 111                 offsetof(struct update_records, ur_ops) +
 112                 update_ops_size(&record->ur_ops, record->ur_update_count));
 113 }
 114
 115 static inline struct update_param *
 116 update_param_next_param(const struct update_param *param)
 117 {
 118         return (struct update_param *)((char *)param +
 119                                        object_update_param_size(
 120                                           (struct object_update_param *)param));
 121 }
 122
 123 static inline size_t
 124 __update_records_size(size_t raw_size)
 125 {
 126         return round_up(offsetof(struct update_records, ur_ops) + raw_size, 8);
 127 }
 128
 129 static inline size_t
 130 update_records_size(const struct update_records *record)
 131 {
 132         size_t op_size = 0;
 133         size_t param_size = 0;
 134
 135         if (record->ur_update_count > 0)
 136                 op_size = update_ops_size(&record->ur_ops,
 137                                           record->ur_update_count);
 138         if (record->ur_param_count > 0) {
 139                 struct update_params *params;
 140
 141                 params = update_records_get_params(record);
 142                 param_size = update_params_size(params, record->ur_param_count);
 143         }
 144
 145         return __update_records_size(op_size + param_size);
 146 }
 147
 148 static inline size_t
 149 __llog_update_record_size(size_t records_size)
 150 {
 151         return round_up(sizeof(struct llog_rec_hdr) + records_size +
 152                         sizeof(struct llog_rec_tail), 8);
 153 }
 154
 155 static inline size_t
 156 llog_update_record_size(const struct llog_update_record *lur)
 157 {
 158         return __llog_update_record_size(
 159                         update_records_size(&lur->lur_update_rec));
 160 }
 161
 162 static inline struct update_op *
 163 update_ops_get_op(const struct update_ops *ops, unsigned int index,
 164                   unsigned int update_count)
 165 {
 166         struct update_op *op;
 167         unsigned int i;
 168
 169         if (index > update_count)
 170                 return NULL;
 171
 172         op = (struct update_op *)&ops->uops_op[0];
 173         for (i = 0; i < index; i++)
 174                 op = update_op_next_op(op);
 175
 176         return op;
 177 }
 178
 179 static inline void
 180 *object_update_param_get(const struct object_update *update, size_t index,
 181                          size_t *size)
 182 {
 183         const struct    object_update_param *param;
 184         size_t          i;
 185
 186         if (index >= update->ou_params_count)
 187                 return ERR_PTR(-EINVAL);
 188
 189         param = &update->ou_params[0];
 190         for (i = 0; i < index; i++)
 191                 param = (struct object_update_param *)((char *)param +
 192                         object_update_param_size(param));
 193
 194         if (size != NULL)
 195                 *size = param->oup_len;
 196
 197         if (param->oup_len == 0)
 198                 return ERR_PTR(-ENODATA);
 199
 200         return (void *)&param->oup_buf[0];
 201 }
 202
 203 static inline unsigned long
 204 object_update_request_size(const struct object_update_request *our)
 205 {
 206         unsigned long   size;
 207         size_t          i = 0;
 208
 209         size = offsetof(struct object_update_request, ourq_updates[0]);
 210         for (i = 0; i < our->ourq_count; i++) {
 211                 struct object_update *update;
 212
 213                 update = (struct object_update *)((char *)our + size);
 214                 size += object_update_size(update);
 215         }
 216         return size;
 217 }
 218
 219 static inline void
 220 object_update_result_insert(struct object_update_reply *reply,
 221                             void *data, size_t data_len, size_t index,
 222                             int rc)
 223 {
 224         struct object_update_result *update_result;
 225
 226         update_result = object_update_result_get(reply, index, NULL);
 227         LASSERT(update_result);
 228
 229         update_result->our_rc = ptlrpc_status_hton(rc);
 230         if (rc >= 0) {
 231                 if (data_len > 0 && data)
 232                         memcpy(update_result->our_data, data, data_len);
 233                 update_result->our_datalen = data_len;
 234         }
 235
 236         reply->ourp_lens[index] = round_up(data_len +
 237                                            sizeof(struct object_update_result),
 238                                            8);
 239 }
 240
 241 static inline int
 242 object_update_result_data_get(const struct object_update_reply *reply,
 243                               struct lu_buf *lbuf, size_t index)
 244 {
 245         struct object_update_result *update_result;
 246         size_t size = 0;
 247         int    result;
 248
 249         LASSERT(lbuf != NULL);
 250         update_result = object_update_result_get(reply, index, &size);
 251         if (update_result == NULL ||
 252             size < round_up(sizeof(struct object_update_reply), 8) ||
 253             update_result->our_datalen > size)
 254                 RETURN(-EFAULT);
 255
 256         result = ptlrpc_status_ntoh(update_result->our_rc);
 257         if (result < 0)
 258                 return result;
 259
 260         lbuf->lb_buf = update_result->our_data;
 261         lbuf->lb_len = update_result->our_datalen;
 262
 263         return result;
 264 }
 265
 266 /**
 267  * Attached in the thandle to record the updates for distribute
 268  * distribution.
 269  */
 270 struct thandle_update_records {
 271         /* All of updates for the cross-MDT operation, vmalloc'd. */
 272         struct llog_update_record       *tur_update_records;
 273         size_t                          tur_update_records_buf_size;
 274
 275         /* All of parameters for the cross-MDT operation, vmalloc'd */
 276         struct update_params    *tur_update_params;
 277         unsigned int            tur_update_param_count;
 278         size_t                  tur_update_params_buf_size;
 279 };
 280
 281 #define TOP_THANDLE_MAGIC       0x20140917
 282 struct top_multiple_thandle {
 283         struct dt_device        *tmt_master_sub_dt;
 284         struct kref             tmt_refcount;
 285         /* Other sub transactions will be listed here. */
 286         struct list_head        tmt_sub_thandle_list;
 287         spinlock_t              tmt_sub_lock;
 288
 289         struct list_head        tmt_commit_list;
 290         /* All of update records will packed here */
 291         struct thandle_update_records *tmt_update_records;
 292
 293         wait_queue_head_t       tmt_stop_waitq;
 294         __u64                   tmt_batchid;
 295         int                     tmt_result;
 296         __u32                   tmt_magic;
 297         size_t                  tmt_record_size;
 298         __u32                   tmt_committed:1;
 299 };
 300
 301 /* {top,sub}_thandle are used to manage distributed transactions which
 302  * include updates on several nodes. A top_handle represents the
 303  * whole operation, and sub_thandle represents updates on each node.
 304  */
 305 struct top_thandle {
 306         struct thandle          tt_super;
 307         /* The master sub transaction. */
 308         struct thandle          *tt_master_sub_thandle;
 309
 310         struct top_multiple_thandle *tt_multiple_thandle;
 311 };
 312
 313 struct sub_thandle_cookie {
 314         struct llog_cookie      stc_cookie;
 315         struct list_head        stc_list;
 316 };
 317
 318 /* Sub thandle used to track multiple sub thandles under one parent thandle */
 319 struct sub_thandle {
 320         struct thandle          *st_sub_th;
 321         struct dt_device        *st_dt;
 322         struct list_head        st_cookie_list;
 323         struct dt_txn_commit_cb st_commit_dcb;
 324         struct dt_txn_commit_cb st_stop_dcb;
 325         int                     st_result;
 326
 327         /* linked to top_thandle */
 328         struct list_head        st_sub_list;
 329
 330         /* If this sub thandle is committed */
 331         bool                    st_committed:1,
 332                                 st_stopped:1,
 333                                 st_started:1;
 334 };
 335
 336 struct tx_arg;
 337 typedef int (*tx_exec_func_t)(const struct lu_env *env, struct thandle *th,
 338                               struct tx_arg *ta);
 339
 340 /* Structure for holding one update execution */
 341 struct tx_arg {
 342         tx_exec_func_t           exec_fn;
 343         tx_exec_func_t           undo_fn;
 344         struct dt_object        *object;
 345         const char              *file;
 346         struct object_update_reply *reply;
 347         int                      line;
 348         int                      index;
 349         union {
 350                 struct {
 351                         struct dt_insert_rec     rec;
 352                         const struct dt_key     *key;
 353                 } insert;
 354                 struct {
 355                 } ref;
 356                 struct {
 357                         struct lu_attr   attr;
 358                 } attr_set;
 359                 struct {
 360                         struct lu_buf    buf;
 361                         const char      *name;
 362                         int              flags;
 363                         __u32            csum;
 364                 } xattr_set;
 365                 struct {
 366                         struct lu_attr                  attr;
 367                         struct dt_allocation_hint       hint;
 368                         struct dt_object_format         dof;
 369                         struct lu_fid                   fid;
 370                 } create;
 371                 struct {
 372                         struct lu_buf   buf;
 373                         loff_t          pos;
 374                 } write;
 375                 struct {
 376                         struct ost_body     *body;
 377                 } destroy;
 378         } u;
 379 };
 380
 381 /* Structure for holding all update executations of one transaction */
 382 struct thandle_exec_args {
 383         struct thandle          *ta_handle;
 384         int                     ta_argno;   /* used args */
 385         int                     ta_alloc_args; /* allocated args count */
 386         struct tx_arg           **ta_args;
 387 };
 388
 389 /* target/out_lib.c */
 390 int out_update_pack(const struct lu_env *env, struct object_update *update,
 391                     size_t *max_update_size, enum update_type op,
 392                     const struct lu_fid *fid, unsigned int params_count,
 393                     __u16 *param_sizes, const void **param_bufs,
 394                     __u32 reply_size);
 395 int out_create_pack(const struct lu_env *env, struct object_update *update,
 396                     size_t *max_update_size, const struct lu_fid *fid,
 397                     const struct lu_attr *attr, struct dt_allocation_hint *hint,
 398                     struct dt_object_format *dof);
 399 int out_destroy_pack(const struct lu_env *env, struct object_update *update,
 400                      size_t *max_update_size, const struct lu_fid *fid);
 401 int out_index_delete_pack(const struct lu_env *env,
 402                           struct object_update *update, size_t *max_update_size,
 403                           const struct lu_fid *fid, const struct dt_key *key);
 404 int out_index_insert_pack(const struct lu_env *env,
 405                           struct object_update *update, size_t *max_update_size,
 406                           const struct lu_fid *fid, const struct dt_rec *rec,
 407                           const struct dt_key *key);
 408 int out_xattr_set_pack(const struct lu_env *env,
 409                        struct object_update *update, size_t *max_update_size,
 410                        const struct lu_fid *fid, const struct lu_buf *buf,
 411                        const char *name, __u32 flag);
 412 int out_xattr_del_pack(const struct lu_env *env,
 413                        struct object_update *update, size_t *max_update_size,
 414                        const struct lu_fid *fid, const char *name);
 415 int out_attr_set_pack(const struct lu_env *env,
 416                       struct object_update *update, size_t *max_update_size,
 417                       const struct lu_fid *fid, const struct lu_attr *attr);
 418 int out_ref_add_pack(const struct lu_env *env,
 419                      struct object_update *update, size_t *max_update_size,
 420                      const struct lu_fid *fid);
 421 int out_ref_del_pack(const struct lu_env *env,
 422                      struct object_update *update, size_t *max_update_size,
 423                      const struct lu_fid *fid);
 424 int out_write_pack(const struct lu_env *env,
 425                    struct object_update *update, size_t *max_update_size,
 426                    const struct lu_fid *fid, const struct lu_buf *buf,
 427                    __u64 pos);
 428 int out_attr_get_pack(const struct lu_env *env,
 429                       struct object_update *update, size_t *max_update_size,
 430                       const struct lu_fid *fid);
 431 int out_index_lookup_pack(const struct lu_env *env,
 432                           struct object_update *update, size_t *max_update_size,
 433                           const struct lu_fid *fid, struct dt_rec *rec,
 434                           const struct dt_key *key);
 435 int out_xattr_get_pack(const struct lu_env *env,
 436                        struct object_update *update, size_t *max_update_size,
 437                        const struct lu_fid *fid, const char *name,
 438                        const int bufsize);
 439 int out_xattr_list_pack(const struct lu_env *env, struct object_update *update,
 440                        size_t *max_update_size, const struct lu_fid *fid,
 441                        const int bufsize);
 442 int out_read_pack(const struct lu_env *env, struct object_update *update,
 443                   size_t *max_update_length, const struct lu_fid *fid,
 444                   size_t size, loff_t pos);
 445
 446 const char *update_op_str(__u16 opcode);
 447
 448 /* target/update_trans.c */
 449 struct thandle *thandle_get_sub_by_dt(const struct lu_env *env,
 450                                       struct thandle *th,
 451                                       struct dt_device *sub_dt);
 452
 453 static inline struct thandle *
 454 thandle_get_sub(const struct lu_env *env, struct thandle *th,
 455                  const struct dt_object *sub_obj)
 456 {
 457         return thandle_get_sub_by_dt(env, th, lu2dt_dev(sub_obj->do_lu.lo_dev));
 458 }
 459
 460 struct thandle *
 461 top_trans_create(const struct lu_env *env, struct dt_device *master_dev);
 462 int top_trans_start(const struct lu_env *env, struct dt_device *master_dev,
 463                     struct thandle *th);
 464 int top_trans_stop(const struct lu_env *env, struct dt_device *master_dev,
 465                    struct thandle *th);
 466 void top_multiple_thandle_destroy(struct kref *kref);
 467
 468 static inline void top_multiple_thandle_get(struct top_multiple_thandle *tmt)
 469 {
 470         kref_get(&tmt->tmt_refcount);
 471 }
 472
 473 static inline void top_multiple_thandle_put(struct top_multiple_thandle *tmt)
 474 {
 475         kref_put(&tmt->tmt_refcount, top_multiple_thandle_destroy);
 476 }
 477
 478 struct sub_thandle *lookup_sub_thandle(struct top_multiple_thandle *tmt,
 479                                        struct dt_device *dt_dev);
 480 int sub_thandle_trans_create(const struct lu_env *env,
 481                              struct top_thandle *top_th,
 482                              struct sub_thandle *st);
 483
 484 /* update_records.c */
 485 size_t update_records_create_size(const struct lu_env *env,
 486                                   const struct lu_fid *fid,
 487                                   const struct lu_attr *attr,
 488                                   const struct dt_allocation_hint *hint,
 489                                   struct dt_object_format *dof);
 490 size_t update_records_attr_set_size(const struct lu_env *env,
 491                                     const struct lu_fid *fid,
 492                                     const struct lu_attr *attr);
 493 size_t update_records_ref_add_size(const struct lu_env *env,
 494                                    const struct lu_fid *fid);
 495 size_t update_records_ref_del_size(const struct lu_env *env,
 496                                    const struct lu_fid *fid);
 497 size_t update_records_destroy_size(const struct lu_env *env,
 498                                    const struct lu_fid *fid);
 499 size_t update_records_index_insert_size(const struct lu_env *env,
 500                                         const struct lu_fid *fid,
 501                                         const struct dt_rec *rec,
 502                                         const struct dt_key *key);
 503 size_t update_records_index_delete_size(const struct lu_env *env,
 504                                         const struct lu_fid *fid,
 505                                         const struct dt_key *key);
 506 size_t update_records_xattr_set_size(const struct lu_env *env,
 507                                      const struct lu_fid *fid,
 508                                      const struct lu_buf *buf,
 509                                      const char *name,
 510                                      __u32 flag);
 511 size_t update_records_xattr_del_size(const struct lu_env *env,
 512                                      const struct lu_fid *fid,
 513                                      const char *name);
 514 size_t update_records_write_size(const struct lu_env *env,
 515                                  const struct lu_fid *fid,
 516                                  const struct lu_buf *buf,
 517                                  __u64 pos);
 518 size_t update_records_punch_size(const struct lu_env *env,
 519                                  const struct lu_fid *fid,
 520                                  __u64 start, __u64 end);
 521
 522 int update_records_create_pack(const struct lu_env *env,
 523                                struct update_ops *ops,
 524                                unsigned int *op_count,
 525                                size_t *max_ops_size,
 526                                struct update_params *params,
 527                                unsigned int *param_count,
 528                                size_t *max_param_size,
 529                                const struct lu_fid *fid,
 530                                const struct lu_attr *attr,
 531                                const struct dt_allocation_hint *hint,
 532                                struct dt_object_format *dof);
 533 int update_records_attr_set_pack(const struct lu_env *env,
 534                                  struct update_ops *ops,
 535                                  unsigned int *op_count,
 536                                  size_t *max_ops_size,
 537                                  struct update_params *params,
 538                                  unsigned int *param_count,
 539                                  size_t *max_param_size,
 540                                  const struct lu_fid *fid,
 541                                  const struct lu_attr *attr);
 542 int update_records_ref_add_pack(const struct lu_env *env,
 543                                 struct update_ops *ops,
 544                                 unsigned int *op_count,
 545                                 size_t *max_ops_size,
 546                                 struct update_params *params,
 547                                 unsigned int *param_count,
 548                                 size_t *max_param_size,
 549                                 const struct lu_fid *fid);
 550 int update_records_ref_del_pack(const struct lu_env *env,
 551                                 struct update_ops *ops,
 552                                 unsigned int *op_count,
 553                                 size_t *max_ops_size,
 554                                 struct update_params *params,
 555                                 unsigned int *param_count,
 556                                 size_t *max_param_size,
 557                                 const struct lu_fid *fid);
 558 int update_records_destroy_pack(const struct lu_env *env,
 559                                 struct update_ops *ops, unsigned int *op_count,
 560                                 size_t *max_ops_size,
 561                                 struct update_params *params,
 562                                 unsigned int *param_count,
 563                                 size_t *max_param_size,
 564                                 const struct lu_fid *fid);
 565 int update_records_index_insert_pack(const struct lu_env *env,
 566                                      struct update_ops *ops,
 567                                      unsigned int *op_count,
 568                                      size_t *max_ops_size,
 569                                      struct update_params *params,
 570                                      unsigned int *param_count,
 571                                      size_t *max_param_size,
 572                                      const struct lu_fid *fid,
 573                                      const struct dt_rec *rec,
 574                                      const struct dt_key *key);
 575 int update_records_index_delete_pack(const struct lu_env *env,
 576                                      struct update_ops *ops,
 577                                      unsigned int *op_count,
 578                                      size_t *max_ops_size,
 579                                      struct update_params *params,
 580                                      unsigned int *param_count,
 581                                      size_t *max_param_size,
 582                                      const struct lu_fid *fid,
 583                                      const struct dt_key *key);
 584 int update_records_xattr_set_pack(const struct lu_env *env,
 585                                   struct update_ops *ops,
 586                                   unsigned int *op_count,
 587                                   size_t *max_ops_size,
 588                                   struct update_params *params,
 589                                   unsigned int *param_count,
 590                                   size_t *max_param_size,
 591                                   const struct lu_fid *fid,
 592                                   const struct lu_buf *buf, const char *name,
 593                                   __u32 flag);
 594 int update_records_xattr_del_pack(const struct lu_env *env,
 595                                   struct update_ops *ops,
 596                                   unsigned int *op_count,
 597                                   size_t *max_ops_size,
 598                                   struct update_params *params,
 599                                   unsigned int *param_count,
 600                                   size_t *max_param_size,
 601                                   const struct lu_fid *fid,
 602                                   const char *name);
 603 int update_records_write_pack(const struct lu_env *env,
 604                               struct update_ops *ops,
 605                               unsigned int *op_count,
 606                               size_t *max_ops_size,
 607                               struct update_params *params,
 608                               unsigned int *param_count,
 609                               size_t *max_param_size,
 610                               const struct lu_fid *fid,
 611                               const struct lu_buf *buf,
 612                               __u64 pos);
 613 int update_records_punch_pack(const struct lu_env *env,
 614                               struct update_ops *ops,
 615                               unsigned int *op_count,
 616                               size_t *max_ops_size,
 617                               struct update_params *params,
 618                               unsigned int *param_count,
 619                               size_t *max_param_size,
 620                               const struct lu_fid *fid,
 621                               __u64 start, __u64 end);
 622 int update_records_noop_pack(const struct lu_env *env,
 623                              struct update_ops *ops,
 624                              unsigned int *op_count,
 625                              size_t *max_ops_size,
 626                              struct update_params *params,
 627                              unsigned int *param_count,
 628                              size_t *max_param_size,
 629                              const struct lu_fid *fid);
 630
 631 int tur_update_records_extend(struct thandle_update_records *tur,
 632                               size_t new_size);
 633 int tur_update_params_extend(struct thandle_update_records *tur,
 634                              size_t new_size);
 635 int tur_update_extend(struct thandle_update_records *tur,
 636                       size_t new_op_size, size_t new_param_size);
 637
 638 #define update_record_pack(name, th, ...)                               \
 639 ({                                                                      \
 640         struct top_thandle *top_th;                                     \
 641         struct top_multiple_thandle *tmt;                               \
 642         struct thandle_update_records *tur;                             \
 643         struct llog_update_record     *lur;                             \
 644         size_t          avail_param_size;                               \
 645         size_t          avail_op_size;                                  \
 646         int             ret;                                            \
 647                                                                         \
 648         while (1) {                                                     \
 649                 top_th = container_of(th, struct top_thandle, tt_super);\
 650                 tmt = top_th->tt_multiple_thandle;                      \
 651                 tur = tmt->tmt_update_records;                          \
 652                 lur = tur->tur_update_records;                          \
 653                 avail_param_size = tur->tur_update_params_buf_size -    \
 654                              update_params_size(tur->tur_update_params, \
 655                                         tur->tur_update_param_count);   \
 656                 avail_op_size = tur->tur_update_records_buf_size -      \
 657                                 llog_update_record_size(lur);           \
 658                 ret = update_records_##name##_pack(env,                 \
 659                                           &lur->lur_update_rec.ur_ops,  \
 660                                   &lur->lur_update_rec.ur_update_count, \
 661                                   &avail_op_size,                       \
 662                                   tur->tur_update_params,               \
 663                                   &tur->tur_update_param_count,         \
 664                                   &avail_param_size, __VA_ARGS__);      \
 665                 if (ret == -E2BIG) {                                    \
 666                         ret = tur_update_extend(tur, avail_op_size,     \
 667                                                    avail_param_size);   \
 668                         if (ret != 0)                                   \
 669                                 break;                                  \
 670                         continue;                                       \
 671                 } else {                                                \
 672                         break;                                          \
 673                 }                                                       \
 674         }                                                               \
 675         ret;                                                            \
 676 })
 677
 678 #define update_record_size(env, name, th, ...)                          \
 679 ({                                                                      \
 680         struct top_thandle *top_th;                                     \
 681         struct top_multiple_thandle *tmt;                               \
 682                                                                         \
 683         top_th = container_of(th, struct top_thandle, tt_super);        \
 684                                                                         \
 685         LASSERT(top_th->tt_multiple_thandle != NULL);                   \
 686         tmt = top_th->tt_multiple_thandle;                              \
 687         tmt->tmt_record_size +=                                         \
 688                 update_records_##name##_size(env, __VA_ARGS__);         \
 689 })
 690 #endif