lustre/ptlrpc/pack_generic.c

   1 /*
   2  * GPL HEADER START
   3  *
   4  * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
   5  *
   6  * This program is free software; you can redistribute it and/or modify
   7  * it under the terms of the GNU General Public License version 2 only,
   8  * as published by the Free Software Foundation.
   9  *
  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).
  15  *
  16  * You should have received a copy of the GNU General Public License
  17  * version 2 along with this program; If not, see
  18  * http://www.gnu.org/licenses/gpl-2.0.html
  19  *
  20  * GPL HEADER END
  21  */
  22 /*
  23  * Copyright (c) 2002, 2010, Oracle and/or its affiliates. All rights reserved.
  24  * Use is subject to license terms.
  25  *
  26  * Copyright (c) 2011, 2017, Intel Corporation.
  27  */
  28 /*
  29  * This file is part of Lustre, http://www.lustre.org/
  30  * Lustre is a trademark of Sun Microsystems, Inc.
  31  *
  32  * lustre/ptlrpc/pack_generic.c
  33  *
  34  * (Un)packing of OST requests
  35  *
  36  * Author: Peter J. Braam <braam@clusterfs.com>
  37  * Author: Phil Schwan <phil@clusterfs.com>
  38  * Author: Eric Barton <eeb@clusterfs.com>
  39  */
  40
  41 #define DEBUG_SUBSYSTEM S_RPC
  42
  43 #include <libcfs/libcfs.h>
  44
  45 #include <llog_swab.h>
  46 #include <lustre_net.h>
  47 #include <lustre_swab.h>
  48 #include <obd_cksum.h>
  49 #include <obd_class.h>
  50 #include <obd_support.h>
  51 #include <obj_update.h>
  52
  53 #include "ptlrpc_internal.h"
  54
  55 static inline __u32 lustre_msg_hdr_size_v2(__u32 count)
  56 {
  57         return cfs_size_round(offsetof(struct lustre_msg_v2,
  58                                        lm_buflens[count]));
  59 }
  60
  61 __u32 lustre_msg_hdr_size(__u32 magic, __u32 count)
  62 {
  63         switch (magic) {
  64         case LUSTRE_MSG_MAGIC_V2:
  65                 return lustre_msg_hdr_size_v2(count);
  66         default:
  67                 LASSERTF(0, "incorrect message magic: %08x\n", magic);
  68                 return 0;
  69         }
  70 }
  71
  72 void ptlrpc_buf_set_swabbed(struct ptlrpc_request *req, const int inout,
  73                             __u32 index)
  74 {
  75         if (inout)
  76                 lustre_set_req_swabbed(req, index);
  77         else
  78                 lustre_set_rep_swabbed(req, index);
  79 }
  80
  81 bool ptlrpc_buf_need_swab(struct ptlrpc_request *req, const int inout,
  82                           __u32 index)
  83 {
  84         if (inout)
  85                 return (ptlrpc_req_need_swab(req) &&
  86                         !lustre_req_swabbed(req, index));
  87
  88         return (ptlrpc_rep_need_swab(req) && !lustre_rep_swabbed(req, index));
  89 }
  90
  91 static inline int lustre_msg_check_version_v2(struct lustre_msg_v2 *msg,
  92                                               enum lustre_msg_version version)
  93 {
  94         enum lustre_msg_version ver = lustre_msg_get_version(msg);
  95
  96         return (ver & LUSTRE_VERSION_MASK) != version;
  97 }
  98
  99 int lustre_msg_check_version(struct lustre_msg *msg,
 100                              enum lustre_msg_version version)
 101 {
 102 #define LUSTRE_MSG_MAGIC_V1 0x0BD00BD0
 103         switch (msg->lm_magic) {
 104         case LUSTRE_MSG_MAGIC_V1:
 105                 CERROR("msg v1 not supported - please upgrade you system\n");
 106                 return -EINVAL;
 107         case LUSTRE_MSG_MAGIC_V2:
 108                 return lustre_msg_check_version_v2(msg, version);
 109         default:
 110                 CERROR("incorrect message magic: %08x\n", msg->lm_magic);
 111                 return -EPROTO;
 112         }
 113 #undef LUSTRE_MSG_MAGIC_V1
 114 }
 115
 116 /* early reply size */
 117 __u32 lustre_msg_early_size()
 118 {
 119         static __u32 size;
 120         if (!size) {
 121                 /* Always reply old ptlrpc_body_v2 to keep interoprability
 122                  * with the old client (< 2.3) which doesn't have pb_jobid
 123                  * in the ptlrpc_body.
 124                  *
 125                  * XXX Remove this whenever we dorp interoprability with such
 126                  *     client.
 127                  */
 128                 __u32 pblen = sizeof(struct ptlrpc_body_v2);
 129                 size = lustre_msg_size(LUSTRE_MSG_MAGIC_V2, 1, &pblen);
 130         }
 131         return size;
 132 }
 133 EXPORT_SYMBOL(lustre_msg_early_size);
 134
 135 __u32 lustre_msg_size_v2(int count, __u32 *lengths)
 136 {
 137         __u32 size;
 138         int i;
 139
 140         size = lustre_msg_hdr_size_v2(count);
 141         for (i = 0; i < count; i++)
 142                 size += cfs_size_round(lengths[i]);
 143
 144         return size;
 145 }
 146 EXPORT_SYMBOL(lustre_msg_size_v2);
 147
 148 /* This returns the size of the buffer that is required to hold a lustre_msg
 149  * with the given sub-buffer lengths.
 150  * NOTE: this should only be used for NEW requests, and should always be
 151  *       in the form of a v2 request.  If this is a connection to a v1
 152  *       target then the first buffer will be stripped because the ptlrpc
 153  *       data is part of the lustre_msg_v1 header. b=14043 */
 154 __u32 lustre_msg_size(__u32 magic, int count, __u32 *lens)
 155 {
 156         __u32 size[] = { sizeof(struct ptlrpc_body) };
 157
 158         if (!lens) {
 159                 LASSERT(count == 1);
 160                 lens = size;
 161         }
 162
 163         LASSERT(count > 0);
 164         LASSERT(lens[MSG_PTLRPC_BODY_OFF] >= sizeof(struct ptlrpc_body_v2));
 165
 166         switch (magic) {
 167         case LUSTRE_MSG_MAGIC_V2:
 168                 return lustre_msg_size_v2(count, lens);
 169         default:
 170                 LASSERTF(0, "incorrect message magic: %08x\n", magic);
 171                 return 0;
 172         }
 173 }
 174
 175 /* This is used to determine the size of a buffer that was already packed
 176  * and will correctly handle the different message formats. */
 177 __u32 lustre_packed_msg_size(struct lustre_msg *msg)
 178 {
 179         switch (msg->lm_magic) {
 180         case LUSTRE_MSG_MAGIC_V2:
 181                 return lustre_msg_size_v2(msg->lm_bufcount, msg->lm_buflens);
 182         default:
 183                 CERROR("incorrect message magic: %08x\n", msg->lm_magic);
 184                 return 0;
 185         }
 186 }
 187 EXPORT_SYMBOL(lustre_packed_msg_size);
 188
 189 void lustre_init_msg_v2(struct lustre_msg_v2 *msg, int count, __u32 *lens,
 190                         char **bufs)
 191 {
 192         char *ptr;
 193         int i;
 194
 195         msg->lm_bufcount = count;
 196         /* XXX: lm_secflvr uninitialized here */
 197         msg->lm_magic = LUSTRE_MSG_MAGIC_V2;
 198
 199         for (i = 0; i < count; i++)
 200                 msg->lm_buflens[i] = lens[i];
 201
 202         if (bufs == NULL)
 203                 return;
 204
 205         ptr = (char *)msg + lustre_msg_hdr_size_v2(count);
 206         for (i = 0; i < count; i++) {
 207                 char *tmp = bufs[i];
 208
 209                 if (tmp)
 210                         memcpy(ptr, tmp, lens[i]);
 211                 ptr += cfs_size_round(lens[i]);
 212         }
 213 }
 214 EXPORT_SYMBOL(lustre_init_msg_v2);
 215
 216 static int lustre_pack_request_v2(struct ptlrpc_request *req,
 217                                   int count, __u32 *lens, char **bufs)
 218 {
 219         int reqlen, rc;
 220
 221         reqlen = lustre_msg_size_v2(count, lens);
 222
 223         rc = sptlrpc_cli_alloc_reqbuf(req, reqlen);
 224         if (rc)
 225                 return rc;
 226
 227         req->rq_reqlen = reqlen;
 228
 229         lustre_init_msg_v2(req->rq_reqmsg, count, lens, bufs);
 230         lustre_msg_add_version(req->rq_reqmsg, PTLRPC_MSG_VERSION);
 231         return 0;
 232 }
 233
 234 int lustre_pack_request(struct ptlrpc_request *req, __u32 magic, int count,
 235                         __u32 *lens, char **bufs)
 236 {
 237         __u32 size[] = { sizeof(struct ptlrpc_body) };
 238
 239         if (!lens) {
 240                 LASSERT(count == 1);
 241                 lens = size;
 242         }
 243
 244         LASSERT(count > 0);
 245         LASSERT(lens[MSG_PTLRPC_BODY_OFF] == sizeof(struct ptlrpc_body));
 246
 247         /* only use new format, we don't need to be compatible with 1.4 */
 248         magic = LUSTRE_MSG_MAGIC_V2;
 249
 250         switch (magic) {
 251         case LUSTRE_MSG_MAGIC_V2:
 252                 return lustre_pack_request_v2(req, count, lens, bufs);
 253         default:
 254                 LASSERTF(0, "incorrect message magic: %08x\n", magic);
 255                 return -EINVAL;
 256         }
 257 }
 258
 259 #if RS_DEBUG
 260 struct list_head ptlrpc_rs_debug_lru =
 261         LIST_HEAD_INIT(ptlrpc_rs_debug_lru);
 262 spinlock_t ptlrpc_rs_debug_lock;
 263
 264 #define PTLRPC_RS_DEBUG_LRU_ADD(rs)                                     \
 265 do {                                                                    \
 266         spin_lock(&ptlrpc_rs_debug_lock);                               \
 267         list_add_tail(&(rs)->rs_debug_list, &ptlrpc_rs_debug_lru);      \
 268         spin_unlock(&ptlrpc_rs_debug_lock);                             \
 269 } while (0)
 270
 271 #define PTLRPC_RS_DEBUG_LRU_DEL(rs)                                     \
 272 do {                                                                    \
 273         spin_lock(&ptlrpc_rs_debug_lock);                               \
 274         list_del(&(rs)->rs_debug_list);                         \
 275         spin_unlock(&ptlrpc_rs_debug_lock);                             \
 276 } while (0)
 277 #else
 278 # define PTLRPC_RS_DEBUG_LRU_ADD(rs) do {} while(0)
 279 # define PTLRPC_RS_DEBUG_LRU_DEL(rs) do {} while(0)
 280 #endif
 281
 282 struct ptlrpc_reply_state *
 283 lustre_get_emerg_rs(struct ptlrpc_service_part *svcpt)
 284 {
 285         struct ptlrpc_reply_state *rs = NULL;
 286
 287         spin_lock(&svcpt->scp_rep_lock);
 288
 289         /* See if we have anything in a pool, and wait if nothing */
 290         while (list_empty(&svcpt->scp_rep_idle)) {
 291                 struct l_wait_info      lwi;
 292                 int                     rc;
 293
 294                 spin_unlock(&svcpt->scp_rep_lock);
 295                 /* If we cannot get anything for some long time, we better
 296                  * bail out instead of waiting infinitely */
 297                 lwi = LWI_TIMEOUT(cfs_time_seconds(10), NULL, NULL);
 298                 rc = l_wait_event(svcpt->scp_rep_waitq,
 299                                   !list_empty(&svcpt->scp_rep_idle), &lwi);
 300                 if (rc != 0)
 301                         goto out;
 302                 spin_lock(&svcpt->scp_rep_lock);
 303         }
 304
 305         rs = list_entry(svcpt->scp_rep_idle.next,
 306                             struct ptlrpc_reply_state, rs_list);
 307         list_del(&rs->rs_list);
 308
 309         spin_unlock(&svcpt->scp_rep_lock);
 310
 311         memset(rs, 0, svcpt->scp_service->srv_max_reply_size);
 312         rs->rs_size = svcpt->scp_service->srv_max_reply_size;
 313         rs->rs_svcpt = svcpt;
 314         rs->rs_prealloc = 1;
 315 out:
 316         return rs;
 317 }
 318
 319 void lustre_put_emerg_rs(struct ptlrpc_reply_state *rs)
 320 {
 321         struct ptlrpc_service_part *svcpt = rs->rs_svcpt;
 322
 323         spin_lock(&svcpt->scp_rep_lock);
 324         list_add(&rs->rs_list, &svcpt->scp_rep_idle);
 325         spin_unlock(&svcpt->scp_rep_lock);
 326         wake_up(&svcpt->scp_rep_waitq);
 327 }
 328
 329 int lustre_pack_reply_v2(struct ptlrpc_request *req, int count,
 330                          __u32 *lens, char **bufs, int flags)
 331 {
 332         struct ptlrpc_reply_state *rs;
 333         int                        msg_len, rc;
 334         ENTRY;
 335
 336         LASSERT(req->rq_reply_state == NULL);
 337
 338         if ((flags & LPRFL_EARLY_REPLY) == 0) {
 339                 spin_lock(&req->rq_lock);
 340                 req->rq_packed_final = 1;
 341                 spin_unlock(&req->rq_lock);
 342         }
 343
 344         msg_len = lustre_msg_size_v2(count, lens);
 345         rc = sptlrpc_svc_alloc_rs(req, msg_len);
 346         if (rc)
 347                 RETURN(rc);
 348
 349         rs = req->rq_reply_state;
 350         atomic_set(&rs->rs_refcount, 1);        /* 1 ref for rq_reply_state */
 351         rs->rs_cb_id.cbid_fn = reply_out_callback;
 352         rs->rs_cb_id.cbid_arg = rs;
 353         rs->rs_svcpt = req->rq_rqbd->rqbd_svcpt;
 354         INIT_LIST_HEAD(&rs->rs_exp_list);
 355         INIT_LIST_HEAD(&rs->rs_obd_list);
 356         INIT_LIST_HEAD(&rs->rs_list);
 357         spin_lock_init(&rs->rs_lock);
 358
 359         req->rq_replen = msg_len;
 360         req->rq_reply_state = rs;
 361         req->rq_repmsg = rs->rs_msg;
 362
 363         lustre_init_msg_v2(rs->rs_msg, count, lens, bufs);
 364         lustre_msg_add_version(rs->rs_msg, PTLRPC_MSG_VERSION);
 365
 366         PTLRPC_RS_DEBUG_LRU_ADD(rs);
 367
 368         RETURN(0);
 369 }
 370 EXPORT_SYMBOL(lustre_pack_reply_v2);
 371
 372 int lustre_pack_reply_flags(struct ptlrpc_request *req, int count, __u32 *lens,
 373                             char **bufs, int flags)
 374 {
 375         int rc = 0;
 376         __u32 size[] = { sizeof(struct ptlrpc_body) };
 377
 378         if (!lens) {
 379                 LASSERT(count == 1);
 380                 lens = size;
 381         }
 382
 383         LASSERT(count > 0);
 384         LASSERT(lens[MSG_PTLRPC_BODY_OFF] == sizeof(struct ptlrpc_body));
 385
 386         switch (req->rq_reqmsg->lm_magic) {
 387         case LUSTRE_MSG_MAGIC_V2:
 388                 rc = lustre_pack_reply_v2(req, count, lens, bufs, flags);
 389                 break;
 390         default:
 391                 LASSERTF(0, "incorrect message magic: %08x\n",
 392                          req->rq_reqmsg->lm_magic);
 393                 rc = -EINVAL;
 394         }
 395         if (rc != 0)
 396                 CERROR("lustre_pack_reply failed: rc=%d size=%d\n", rc,
 397                        lustre_msg_size(req->rq_reqmsg->lm_magic, count, lens));
 398         return rc;
 399 }
 400
 401 int lustre_pack_reply(struct ptlrpc_request *req, int count, __u32 *lens,
 402                       char **bufs)
 403 {
 404         return lustre_pack_reply_flags(req, count, lens, bufs, 0);
 405 }
 406 EXPORT_SYMBOL(lustre_pack_reply);
 407
 408 void *lustre_msg_buf_v2(struct lustre_msg_v2 *m, __u32 n, __u32 min_size)
 409 {
 410         __u32 i, offset, buflen, bufcount;
 411
 412         LASSERT(m != NULL);
 413
 414         bufcount = m->lm_bufcount;
 415         if (unlikely(n >= bufcount)) {
 416                 CDEBUG(D_INFO, "msg %p buffer[%d] not present (count %d)\n",
 417                        m, n, bufcount);
 418                 return NULL;
 419         }
 420
 421         buflen = m->lm_buflens[n];
 422         if (unlikely(buflen < min_size)) {
 423                 CERROR("msg %p buffer[%d] size %d too small "
 424                        "(required %d, opc=%d)\n", m, n, buflen, min_size,
 425                        n == MSG_PTLRPC_BODY_OFF ? -1 : lustre_msg_get_opc(m));
 426                 return NULL;
 427         }
 428
 429         offset = lustre_msg_hdr_size_v2(bufcount);
 430         for (i = 0; i < n; i++)
 431                 offset += cfs_size_round(m->lm_buflens[i]);
 432
 433         return (char *)m + offset;
 434 }
 435
 436 void *lustre_msg_buf(struct lustre_msg *m, __u32 n, __u32 min_size)
 437 {
 438         switch (m->lm_magic) {
 439         case LUSTRE_MSG_MAGIC_V2:
 440                 return lustre_msg_buf_v2(m, n, min_size);
 441         default:
 442                 LASSERTF(0, "incorrect message magic: %08x (msg:%p)\n",
 443                          m->lm_magic, m);
 444                 return NULL;
 445         }
 446 }
 447 EXPORT_SYMBOL(lustre_msg_buf);
 448
 449 static int lustre_shrink_msg_v2(struct lustre_msg_v2 *msg, __u32 segment,
 450                                 unsigned int newlen, int move_data)
 451 {
 452         char   *tail = NULL, *newpos;
 453         int     tail_len = 0, n;
 454
 455         LASSERT(msg);
 456         LASSERT(msg->lm_bufcount > segment);
 457         LASSERT(msg->lm_buflens[segment] >= newlen);
 458
 459         if (msg->lm_buflens[segment] == newlen)
 460                 goto out;
 461
 462         if (move_data && msg->lm_bufcount > segment + 1) {
 463                 tail = lustre_msg_buf_v2(msg, segment + 1, 0);
 464                 for (n = segment + 1; n < msg->lm_bufcount; n++)
 465                         tail_len += cfs_size_round(msg->lm_buflens[n]);
 466         }
 467
 468         msg->lm_buflens[segment] = newlen;
 469
 470         if (tail && tail_len) {
 471                 newpos = lustre_msg_buf_v2(msg, segment + 1, 0);
 472                 LASSERT(newpos <= tail);
 473                 if (newpos != tail)
 474                         memmove(newpos, tail, tail_len);
 475         }
 476 out:
 477         return lustre_msg_size_v2(msg->lm_bufcount, msg->lm_buflens);
 478 }
 479
 480 /*
 481  * for @msg, shrink @segment to size @newlen. if @move_data is non-zero,
 482  * we also move data forward from @segment + 1.
 483  *
 484  * if @newlen == 0, we remove the segment completely, but we still keep the
 485  * totally bufcount the same to save possible data moving. this will leave a
 486  * unused segment with size 0 at the tail, but that's ok.
 487  *
 488  * return new msg size after shrinking.
 489  *
 490  * CAUTION:
 491  * + if any buffers higher than @segment has been filled in, must call shrink
 492  *   with non-zero @move_data.
 493  * + caller should NOT keep pointers to msg buffers which higher than @segment
 494  *   after call shrink.
 495  */
 496 int lustre_shrink_msg(struct lustre_msg *msg, int segment,
 497                       unsigned int newlen, int move_data)
 498 {
 499         switch (msg->lm_magic) {
 500         case LUSTRE_MSG_MAGIC_V2:
 501                 return lustre_shrink_msg_v2(msg, segment, newlen, move_data);
 502         default:
 503                 LASSERTF(0, "incorrect message magic: %08x\n", msg->lm_magic);
 504         }
 505 }
 506 EXPORT_SYMBOL(lustre_shrink_msg);
 507
 508 void lustre_free_reply_state(struct ptlrpc_reply_state *rs)
 509 {
 510         PTLRPC_RS_DEBUG_LRU_DEL(rs);
 511
 512         LASSERT(atomic_read(&rs->rs_refcount) == 0);
 513         LASSERT(!rs->rs_difficult || rs->rs_handled);
 514         LASSERT(!rs->rs_on_net);
 515         LASSERT(!rs->rs_scheduled);
 516         LASSERT(rs->rs_export == NULL);
 517         LASSERT(rs->rs_nlocks == 0);
 518         LASSERT(list_empty(&rs->rs_exp_list));
 519         LASSERT(list_empty(&rs->rs_obd_list));
 520
 521         sptlrpc_svc_free_rs(rs);
 522 }
 523
 524 static int lustre_unpack_msg_v2(struct lustre_msg_v2 *m, int len)
 525 {
 526         int swabbed, required_len, i;
 527
 528         /* Now we know the sender speaks my language. */
 529         required_len = lustre_msg_hdr_size_v2(0);
 530         if (len < required_len) {
 531                 /* can't even look inside the message */
 532                 CERROR("message length %d too small for lustre_msg\n", len);
 533                 return -EINVAL;
 534         }
 535
 536         swabbed = (m->lm_magic == LUSTRE_MSG_MAGIC_V2_SWABBED);
 537
 538         if (swabbed) {
 539                 __swab32s(&m->lm_magic);
 540                 __swab32s(&m->lm_bufcount);
 541                 __swab32s(&m->lm_secflvr);
 542                 __swab32s(&m->lm_repsize);
 543                 __swab32s(&m->lm_cksum);
 544                 __swab32s(&m->lm_flags);
 545                 CLASSERT(offsetof(typeof(*m), lm_padding_2) != 0);
 546                 CLASSERT(offsetof(typeof(*m), lm_padding_3) != 0);
 547         }
 548
 549         required_len = lustre_msg_hdr_size_v2(m->lm_bufcount);
 550         if (len < required_len) {
 551                 /* didn't receive all the buffer lengths */
 552                 CERROR ("message length %d too small for %d buflens\n",
 553                         len, m->lm_bufcount);
 554                 return -EINVAL;
 555         }
 556
 557         for (i = 0; i < m->lm_bufcount; i++) {
 558                 if (swabbed)
 559                         __swab32s(&m->lm_buflens[i]);
 560                 required_len += cfs_size_round(m->lm_buflens[i]);
 561         }
 562
 563         if (len < required_len) {
 564                 CERROR("len: %d, required_len %d\n", len, required_len);
 565                 CERROR("bufcount: %d\n", m->lm_bufcount);
 566                 for (i = 0; i < m->lm_bufcount; i++)
 567                         CERROR("buffer %d length %d\n", i, m->lm_buflens[i]);
 568                 return -EINVAL;
 569         }
 570
 571         return swabbed;
 572 }
 573
 574 int __lustre_unpack_msg(struct lustre_msg *m, int len)
 575 {
 576         int required_len, rc;
 577         ENTRY;
 578
 579         /* We can provide a slightly better error log, if we check the
 580          * message magic and version first.  In the future, struct
 581          * lustre_msg may grow, and we'd like to log a version mismatch,
 582          * rather than a short message.
 583          *
 584          */
 585         required_len = offsetof(struct lustre_msg, lm_magic) +
 586                        sizeof(m->lm_magic);
 587         if (len < required_len) {
 588                 /* can't even look inside the message */
 589                 CERROR("message length %d too small for magic/version check\n",
 590                        len);
 591                 RETURN(-EINVAL);
 592         }
 593
 594         rc = lustre_unpack_msg_v2(m, len);
 595
 596         RETURN(rc);
 597 }
 598 EXPORT_SYMBOL(__lustre_unpack_msg);
 599
 600 int ptlrpc_unpack_req_msg(struct ptlrpc_request *req, int len)
 601 {
 602         int rc;
 603         rc = __lustre_unpack_msg(req->rq_reqmsg, len);
 604         if (rc == 1) {
 605                 lustre_set_req_swabbed(req, MSG_PTLRPC_HEADER_OFF);
 606                 rc = 0;
 607         }
 608         return rc;
 609 }
 610
 611 int ptlrpc_unpack_rep_msg(struct ptlrpc_request *req, int len)
 612 {
 613         int rc;
 614         rc = __lustre_unpack_msg(req->rq_repmsg, len);
 615         if (rc == 1) {
 616                 lustre_set_rep_swabbed(req, MSG_PTLRPC_HEADER_OFF);
 617                 rc = 0;
 618         }
 619         return rc;
 620 }
 621
 622 static inline int lustre_unpack_ptlrpc_body_v2(struct ptlrpc_request *req,
 623                                                const int inout, int offset)
 624 {
 625         struct ptlrpc_body *pb;
 626         struct lustre_msg_v2 *m = inout ? req->rq_reqmsg : req->rq_repmsg;
 627
 628         pb = lustre_msg_buf_v2(m, offset, sizeof(struct ptlrpc_body_v2));
 629         if (!pb) {
 630                 CERROR("error unpacking ptlrpc body\n");
 631                 return -EFAULT;
 632         }
 633         if (ptlrpc_buf_need_swab(req, inout, offset)) {
 634                 lustre_swab_ptlrpc_body(pb);
 635                 ptlrpc_buf_set_swabbed(req, inout, offset);
 636         }
 637
 638         if ((pb->pb_version & ~LUSTRE_VERSION_MASK) != PTLRPC_MSG_VERSION) {
 639                  CERROR("wrong lustre_msg version %08x\n", pb->pb_version);
 640                  return -EINVAL;
 641         }
 642
 643         if (!inout)
 644                 pb->pb_status = ptlrpc_status_ntoh(pb->pb_status);
 645
 646         return 0;
 647 }
 648
 649 int lustre_unpack_req_ptlrpc_body(struct ptlrpc_request *req, int offset)
 650 {
 651         switch (req->rq_reqmsg->lm_magic) {
 652         case LUSTRE_MSG_MAGIC_V2:
 653                 return lustre_unpack_ptlrpc_body_v2(req, 1, offset);
 654         default:
 655                 CERROR("bad lustre msg magic: %08x\n",
 656                        req->rq_reqmsg->lm_magic);
 657                 return -EINVAL;
 658         }
 659 }
 660
 661 int lustre_unpack_rep_ptlrpc_body(struct ptlrpc_request *req, int offset)
 662 {
 663         switch (req->rq_repmsg->lm_magic) {
 664         case LUSTRE_MSG_MAGIC_V2:
 665                 return lustre_unpack_ptlrpc_body_v2(req, 0, offset);
 666         default:
 667                 CERROR("bad lustre msg magic: %08x\n",
 668                        req->rq_repmsg->lm_magic);
 669                 return -EINVAL;
 670         }
 671 }
 672
 673 static inline __u32 lustre_msg_buflen_v2(struct lustre_msg_v2 *m, __u32 n)
 674 {
 675         if (n >= m->lm_bufcount)
 676                 return 0;
 677
 678         return m->lm_buflens[n];
 679 }
 680
 681 /**
 682  * lustre_msg_buflen - return the length of buffer \a n in message \a m
 683  * \param m lustre_msg (request or reply) to look at
 684  * \param n message index (base 0)
 685  *
 686  * returns zero for non-existent message indices
 687  */
 688 __u32 lustre_msg_buflen(struct lustre_msg *m, __u32 n)
 689 {
 690         switch (m->lm_magic) {
 691         case LUSTRE_MSG_MAGIC_V2:
 692                 return lustre_msg_buflen_v2(m, n);
 693         default:
 694                 CERROR("incorrect message magic: %08x\n", m->lm_magic);
 695                 return 0;
 696         }
 697 }
 698 EXPORT_SYMBOL(lustre_msg_buflen);
 699
 700 static inline void
 701 lustre_msg_set_buflen_v2(struct lustre_msg_v2 *m, __u32 n, __u32 len)
 702 {
 703         if (n >= m->lm_bufcount)
 704                 LBUG();
 705
 706         m->lm_buflens[n] = len;
 707 }
 708
 709 void lustre_msg_set_buflen(struct lustre_msg *m, __u32 n, __u32 len)
 710 {
 711         switch (m->lm_magic) {
 712         case LUSTRE_MSG_MAGIC_V2:
 713                 lustre_msg_set_buflen_v2(m, n, len);
 714                 return;
 715         default:
 716                 LASSERTF(0, "incorrect message magic: %08x\n", m->lm_magic);
 717         }
 718 }
 719
 720 /* NB return the bufcount for lustre_msg_v2 format, so if message is packed
 721  * in V1 format, the result is one bigger. (add struct ptlrpc_body). */
 722 __u32 lustre_msg_bufcount(struct lustre_msg *m)
 723 {
 724         switch (m->lm_magic) {
 725         case LUSTRE_MSG_MAGIC_V2:
 726                 return m->lm_bufcount;
 727         default:
 728                 CERROR("incorrect message magic: %08x\n", m->lm_magic);
 729                 return 0;
 730         }
 731 }
 732
 733 char *lustre_msg_string(struct lustre_msg *m, __u32 index, __u32 max_len)
 734 {
 735         /* max_len == 0 means the string should fill the buffer */
 736         char *str;
 737         __u32 slen, blen;
 738
 739         switch (m->lm_magic) {
 740         case LUSTRE_MSG_MAGIC_V2:
 741                 str = lustre_msg_buf_v2(m, index, 0);
 742                 blen = lustre_msg_buflen_v2(m, index);
 743                 break;
 744         default:
 745                 LASSERTF(0, "incorrect message magic: %08x\n", m->lm_magic);
 746         }
 747
 748         if (str == NULL) {
 749                 CERROR ("can't unpack string in msg %p buffer[%d]\n", m, index);
 750                 return NULL;
 751         }
 752
 753         slen = strnlen(str, blen);
 754
 755         if (slen == blen) {                     /* not NULL terminated */
 756                 CERROR("can't unpack non-NULL terminated string in "
 757                         "msg %p buffer[%d] len %d\n", m, index, blen);
 758                 return NULL;
 759         }
 760
 761         if (max_len == 0) {
 762                 if (slen != blen - 1) {
 763                         CERROR("can't unpack short string in msg %p "
 764                                "buffer[%d] len %d: strlen %d\n",
 765                                m, index, blen, slen);
 766                         return NULL;
 767                 }
 768         } else if (slen > max_len) {
 769                 CERROR("can't unpack oversized string in msg %p "
 770                        "buffer[%d] len %d strlen %d: max %d expected\n",
 771                        m, index, blen, slen, max_len);
 772                 return NULL;
 773         }
 774
 775         return str;
 776 }
 777
 778 /* Wrap up the normal fixed length cases */
 779 static inline void *__lustre_swab_buf(struct lustre_msg *msg, __u32 index,
 780                                       __u32 min_size, void *swabber)
 781 {
 782         void *ptr = NULL;
 783
 784         LASSERT(msg != NULL);
 785         switch (msg->lm_magic) {
 786         case LUSTRE_MSG_MAGIC_V2:
 787                 ptr = lustre_msg_buf_v2(msg, index, min_size);
 788                 break;
 789         default:
 790                 CERROR("incorrect message magic: %08x\n", msg->lm_magic);
 791         }
 792
 793         if (ptr != NULL && swabber != NULL)
 794                 ((void (*)(void *))swabber)(ptr);
 795
 796         return ptr;
 797 }
 798
 799 static inline struct ptlrpc_body *lustre_msg_ptlrpc_body(struct lustre_msg *msg)
 800 {
 801         return lustre_msg_buf_v2(msg, MSG_PTLRPC_BODY_OFF,
 802                                  sizeof(struct ptlrpc_body_v2));
 803 }
 804
 805 enum lustre_msghdr lustre_msghdr_get_flags(struct lustre_msg *msg)
 806 {
 807         switch (msg->lm_magic) {
 808         case LUSTRE_MSG_MAGIC_V2:
 809                 /* already in host endian */
 810                 return msg->lm_flags;
 811         default:
 812                 CERROR("incorrect message magic: %08x\n", msg->lm_magic);
 813                 return 0;
 814         }
 815 }
 816 EXPORT_SYMBOL(lustre_msghdr_get_flags);
 817
 818 void lustre_msghdr_set_flags(struct lustre_msg *msg, __u32 flags)
 819 {
 820         switch (msg->lm_magic) {
 821         case LUSTRE_MSG_MAGIC_V2:
 822                 msg->lm_flags = flags;
 823                 return;
 824         default:
 825                 LASSERTF(0, "incorrect message magic: %08x\n", msg->lm_magic);
 826         }
 827 }
 828
 829 __u32 lustre_msg_get_flags(struct lustre_msg *msg)
 830 {
 831         switch (msg->lm_magic) {
 832         case LUSTRE_MSG_MAGIC_V2: {
 833                 struct ptlrpc_body *pb = lustre_msg_ptlrpc_body(msg);
 834                 if (pb != NULL)
 835                         return pb->pb_flags;
 836
 837                 CERROR("invalid msg %p: no ptlrpc body!\n", msg);
 838         }
 839         /* no break */
 840         default:
 841                 /* flags might be printed in debug code while message
 842                  * uninitialized */
 843                 return 0;
 844         }
 845 }
 846 EXPORT_SYMBOL(lustre_msg_get_flags);
 847
 848 void lustre_msg_add_flags(struct lustre_msg *msg, __u32 flags)
 849 {
 850         switch (msg->lm_magic) {
 851         case LUSTRE_MSG_MAGIC_V2: {
 852                 struct ptlrpc_body *pb = lustre_msg_ptlrpc_body(msg);
 853                 LASSERTF(pb != NULL, "invalid msg %p: no ptlrpc body!\n", msg);
 854                 pb->pb_flags |= flags;
 855                 return;
 856         }
 857         default:
 858                 LASSERTF(0, "incorrect message magic: %08x\n", msg->lm_magic);
 859         }
 860 }
 861 EXPORT_SYMBOL(lustre_msg_add_flags);
 862
 863 void lustre_msg_set_flags(struct lustre_msg *msg, __u32 flags)
 864 {
 865         switch (msg->lm_magic) {
 866         case LUSTRE_MSG_MAGIC_V2: {
 867                 struct ptlrpc_body *pb = lustre_msg_ptlrpc_body(msg);
 868                 LASSERTF(pb != NULL, "invalid msg %p: no ptlrpc body!\n", msg);
 869                 pb->pb_flags = flags;
 870                 return;
 871         }
 872         default:
 873                 LASSERTF(0, "incorrect message magic: %08x\n", msg->lm_magic);
 874         }
 875 }
 876
 877 void lustre_msg_clear_flags(struct lustre_msg *msg, __u32 flags)
 878 {
 879         switch (msg->lm_magic) {
 880         case LUSTRE_MSG_MAGIC_V2: {
 881                 struct ptlrpc_body *pb = lustre_msg_ptlrpc_body(msg);
 882                 LASSERTF(pb != NULL, "invalid msg %p: no ptlrpc body!\n", msg);
 883                 pb->pb_flags &= ~flags;
 884
 885                 return;
 886         }
 887         default:
 888                 LASSERTF(0, "incorrect message magic: %08x\n", msg->lm_magic);
 889         }
 890 }
 891 EXPORT_SYMBOL(lustre_msg_clear_flags);
 892
 893 __u32 lustre_msg_get_op_flags(struct lustre_msg *msg)
 894 {
 895         switch (msg->lm_magic) {
 896         case LUSTRE_MSG_MAGIC_V2: {
 897                 struct ptlrpc_body *pb = lustre_msg_ptlrpc_body(msg);
 898                 if (pb != NULL)
 899                         return pb->pb_op_flags;
 900
 901                 CERROR("invalid msg %p: no ptlrpc body!\n", msg);
 902         }
 903         /* no break */
 904         default:
 905                 return 0;
 906         }
 907 }
 908
 909 void lustre_msg_add_op_flags(struct lustre_msg *msg, __u32 flags)
 910 {
 911         switch (msg->lm_magic) {
 912         case LUSTRE_MSG_MAGIC_V2: {
 913                 struct ptlrpc_body *pb = lustre_msg_ptlrpc_body(msg);
 914                 LASSERTF(pb != NULL, "invalid msg %p: no ptlrpc body!\n", msg);
 915                 pb->pb_op_flags |= flags;
 916                 return;
 917         }
 918         default:
 919                 LASSERTF(0, "incorrect message magic: %08x\n", msg->lm_magic);
 920         }
 921 }
 922 EXPORT_SYMBOL(lustre_msg_add_op_flags);
 923
 924 struct lustre_handle *lustre_msg_get_handle(struct lustre_msg *msg)
 925 {
 926         switch (msg->lm_magic) {
 927         case LUSTRE_MSG_MAGIC_V2: {
 928                 struct ptlrpc_body *pb = lustre_msg_ptlrpc_body(msg);
 929                 if (pb == NULL) {
 930                         CERROR("invalid msg %p: no ptlrpc body!\n", msg);
 931                         return NULL;
 932                 }
 933                 return &pb->pb_handle;
 934         }
 935         default:
 936                 CERROR("incorrect message magic: %08x\n", msg->lm_magic);
 937                 return NULL;
 938         }
 939 }
 940
 941 __u32 lustre_msg_get_type(struct lustre_msg *msg)
 942 {
 943         switch (msg->lm_magic) {
 944         case LUSTRE_MSG_MAGIC_V2: {
 945                 struct ptlrpc_body *pb = lustre_msg_ptlrpc_body(msg);
 946                 if (pb == NULL) {
 947                         CERROR("invalid msg %p: no ptlrpc body!\n", msg);
 948                         return PTL_RPC_MSG_ERR;
 949                 }
 950                 return pb->pb_type;
 951         }
 952         default:
 953                 CERROR("incorrect message magic: %08x\n", msg->lm_magic);
 954                 return PTL_RPC_MSG_ERR;
 955         }
 956 }
 957 EXPORT_SYMBOL(lustre_msg_get_type);
 958
 959 enum lustre_msg_version lustre_msg_get_version(struct lustre_msg *msg)
 960 {
 961         switch (msg->lm_magic) {
 962         case LUSTRE_MSG_MAGIC_V2: {
 963                 struct ptlrpc_body *pb = lustre_msg_ptlrpc_body(msg);
 964                 if (pb == NULL) {
 965                         CERROR("invalid msg %p: no ptlrpc body!\n", msg);
 966                         return 0;
 967                 }
 968                 return pb->pb_version;
 969         }
 970         default:
 971                 CERROR("incorrect message magic: %08x\n", msg->lm_magic);
 972                 return 0;
 973         }
 974 }
 975
 976 void lustre_msg_add_version(struct lustre_msg *msg, __u32 version)
 977 {
 978         switch (msg->lm_magic) {
 979         case LUSTRE_MSG_MAGIC_V2: {
 980                 struct ptlrpc_body *pb = lustre_msg_ptlrpc_body(msg);
 981                 LASSERTF(pb != NULL, "invalid msg %p: no ptlrpc body!\n", msg);
 982                 pb->pb_version |= version;
 983                 return;
 984         }
 985         default:
 986                 LASSERTF(0, "incorrect message magic: %08x\n", msg->lm_magic);
 987         }
 988 }
 989
 990 __u32 lustre_msg_get_opc(struct lustre_msg *msg)
 991 {
 992         switch (msg->lm_magic) {
 993         case LUSTRE_MSG_MAGIC_V2: {
 994                 struct ptlrpc_body *pb = lustre_msg_ptlrpc_body(msg);
 995                 if (pb == NULL) {
 996                         CERROR("invalid msg %p: no ptlrpc body!\n", msg);
 997                         return 0;
 998                 }
 999                 return pb->pb_opc;
1000         }
1001         default:
1002                 CERROR("incorrect message magic: %08x (msg:%p)\n",
1003                        msg->lm_magic, msg);
1004                 return 0;
1005         }
1006 }
1007 EXPORT_SYMBOL(lustre_msg_get_opc);
1008
1009 __u64 lustre_msg_get_last_xid(struct lustre_msg *msg)
1010 {
1011         switch (msg->lm_magic) {
1012         case LUSTRE_MSG_MAGIC_V2: {
1013                 struct ptlrpc_body *pb = lustre_msg_ptlrpc_body(msg);
1014                 if (pb == NULL) {
1015                         CERROR("invalid msg %p: no ptlrpc body!\n", msg);
1016                         return 0;
1017                 }
1018                 return pb->pb_last_xid;
1019         }
1020         default:
1021                 CERROR("incorrect message magic: %08x\n", msg->lm_magic);
1022                 return 0;
1023         }
1024 }
1025 EXPORT_SYMBOL(lustre_msg_get_last_xid);
1026
1027 __u16 lustre_msg_get_tag(struct lustre_msg *msg)
1028 {
1029         switch (msg->lm_magic) {
1030         case LUSTRE_MSG_MAGIC_V2: {
1031                 struct ptlrpc_body *pb = lustre_msg_ptlrpc_body(msg);
1032                 if (!pb) {
1033                         CERROR("invalid msg %p: no ptlrpc body!\n", msg);
1034                         return 0;
1035                 }
1036                 return pb->pb_tag;
1037         }
1038         default:
1039                 CERROR("incorrect message magic: %08x\n", msg->lm_magic);
1040                 return 0;
1041         }
1042 }
1043 EXPORT_SYMBOL(lustre_msg_get_tag);
1044
1045 __u64 lustre_msg_get_last_committed(struct lustre_msg *msg)
1046 {
1047         switch (msg->lm_magic) {
1048         case LUSTRE_MSG_MAGIC_V2: {
1049                 struct ptlrpc_body *pb = lustre_msg_ptlrpc_body(msg);
1050                 if (pb == NULL) {
1051                         CERROR("invalid msg %p: no ptlrpc body!\n", msg);
1052                         return 0;
1053                 }
1054                 return pb->pb_last_committed;
1055         }
1056         default:
1057                 CERROR("incorrect message magic: %08x\n", msg->lm_magic);
1058                 return 0;
1059         }
1060 }
1061 EXPORT_SYMBOL(lustre_msg_get_last_committed);
1062
1063 __u64 *lustre_msg_get_versions(struct lustre_msg *msg)
1064 {
1065         switch (msg->lm_magic) {
1066         case LUSTRE_MSG_MAGIC_V2: {
1067                 struct ptlrpc_body *pb = lustre_msg_ptlrpc_body(msg);
1068                 if (pb == NULL) {
1069                         CERROR("invalid msg %p: no ptlrpc body!\n", msg);
1070                         return NULL;
1071                 }
1072                 return pb->pb_pre_versions;
1073         }
1074         default:
1075                 CERROR("incorrect message magic: %08x\n", msg->lm_magic);
1076                 return NULL;
1077         }
1078 }
1079 EXPORT_SYMBOL(lustre_msg_get_versions);
1080
1081 __u64 lustre_msg_get_transno(struct lustre_msg *msg)
1082 {
1083         switch (msg->lm_magic) {
1084         case LUSTRE_MSG_MAGIC_V2: {
1085                 struct ptlrpc_body *pb = lustre_msg_ptlrpc_body(msg);
1086                 if (pb == NULL) {
1087                         CERROR("invalid msg %p: no ptlrpc body!\n", msg);
1088                         return 0;
1089                 }
1090                 return pb->pb_transno;
1091         }
1092         default:
1093                 CERROR("incorrect message magic: %08x\n", msg->lm_magic);
1094                 return 0;
1095         }
1096 }
1097 EXPORT_SYMBOL(lustre_msg_get_transno);
1098
1099 int lustre_msg_get_status(struct lustre_msg *msg)
1100 {
1101         switch (msg->lm_magic) {
1102         case LUSTRE_MSG_MAGIC_V2: {
1103                 struct ptlrpc_body *pb = lustre_msg_ptlrpc_body(msg);
1104                 if (pb != NULL)
1105                         return pb->pb_status;
1106                 CERROR("invalid msg %p: no ptlrpc body!\n", msg);
1107         }
1108         /* no break */
1109         default:
1110                 /* status might be printed in debug code while message
1111                 * uninitialized */
1112                 return -EINVAL;
1113         }
1114 }
1115 EXPORT_SYMBOL(lustre_msg_get_status);
1116
1117 __u64 lustre_msg_get_slv(struct lustre_msg *msg)
1118 {
1119         switch (msg->lm_magic) {
1120         case LUSTRE_MSG_MAGIC_V2: {
1121                 struct ptlrpc_body *pb = lustre_msg_ptlrpc_body(msg);
1122                 if (pb == NULL) {
1123                         CERROR("invalid msg %p: no ptlrpc body!\n", msg);
1124                         return -EINVAL;
1125                 }
1126                 return pb->pb_slv;
1127         }
1128         default:
1129                 CERROR("invalid msg magic %08x\n", msg->lm_magic);
1130                 return -EINVAL;
1131         }
1132 }
1133
1134
1135 void lustre_msg_set_slv(struct lustre_msg *msg, __u64 slv)
1136 {
1137         switch (msg->lm_magic) {
1138         case LUSTRE_MSG_MAGIC_V2: {
1139                 struct ptlrpc_body *pb = lustre_msg_ptlrpc_body(msg);
1140                 if (pb == NULL) {
1141                         CERROR("invalid msg %p: no ptlrpc body!\n", msg);
1142                         return;
1143                 }
1144                 pb->pb_slv = slv;
1145                 return;
1146         }
1147         default:
1148                 CERROR("invalid msg magic %x\n", msg->lm_magic);
1149                 return;
1150         }
1151 }
1152
1153 __u32 lustre_msg_get_limit(struct lustre_msg *msg)
1154 {
1155         switch (msg->lm_magic) {
1156         case LUSTRE_MSG_MAGIC_V2: {
1157                 struct ptlrpc_body *pb = lustre_msg_ptlrpc_body(msg);
1158                 if (pb == NULL) {
1159                         CERROR("invalid msg %p: no ptlrpc body!\n", msg);
1160                         return -EINVAL;
1161                 }
1162                 return pb->pb_limit;
1163         }
1164         default:
1165                 CERROR("invalid msg magic %x\n", msg->lm_magic);
1166                 return -EINVAL;
1167         }
1168 }
1169
1170
1171 void lustre_msg_set_limit(struct lustre_msg *msg, __u64 limit)
1172 {
1173         switch (msg->lm_magic) {
1174         case LUSTRE_MSG_MAGIC_V2: {
1175                 struct ptlrpc_body *pb = lustre_msg_ptlrpc_body(msg);
1176                 if (pb == NULL) {
1177                         CERROR("invalid msg %p: no ptlrpc body!\n", msg);
1178                         return;
1179                 }
1180                 pb->pb_limit = limit;
1181                 return;
1182         }
1183         default:
1184                 CERROR("invalid msg magic %08x\n", msg->lm_magic);
1185                 return;
1186         }
1187 }
1188
1189 __u32 lustre_msg_get_conn_cnt(struct lustre_msg *msg)
1190 {
1191         switch (msg->lm_magic) {
1192         case LUSTRE_MSG_MAGIC_V2: {
1193                 struct ptlrpc_body *pb = lustre_msg_ptlrpc_body(msg);
1194                 if (pb == NULL) {
1195                         CERROR("invalid msg %p: no ptlrpc body!\n", msg);
1196                         return 0;
1197                 }
1198                 return pb->pb_conn_cnt;
1199         }
1200         default:
1201                 CERROR("incorrect message magic: %08x\n", msg->lm_magic);
1202                 return 0;
1203         }
1204 }
1205 EXPORT_SYMBOL(lustre_msg_get_conn_cnt);
1206
1207 __u32 lustre_msg_get_magic(struct lustre_msg *msg)
1208 {
1209         switch (msg->lm_magic) {
1210         case LUSTRE_MSG_MAGIC_V2:
1211                 return msg->lm_magic;
1212         default:
1213                 CERROR("incorrect message magic: %08x\n", msg->lm_magic);
1214                 return 0;
1215         }
1216 }
1217
1218 __u32 lustre_msg_get_timeout(struct lustre_msg *msg)
1219 {
1220         switch (msg->lm_magic) {
1221         case LUSTRE_MSG_MAGIC_V2: {
1222                 struct ptlrpc_body *pb = lustre_msg_ptlrpc_body(msg);
1223                 if (pb == NULL) {
1224                         CERROR("invalid msg %p: no ptlrpc body!\n", msg);
1225                         return 0;
1226                 }
1227                 return pb->pb_timeout;
1228         }
1229         default:
1230                 CERROR("incorrect message magic: %08x\n", msg->lm_magic);
1231                 return 0;
1232         }
1233 }
1234
1235 __u32 lustre_msg_get_service_time(struct lustre_msg *msg)
1236 {
1237         switch (msg->lm_magic) {
1238         case LUSTRE_MSG_MAGIC_V2: {
1239                 struct ptlrpc_body *pb = lustre_msg_ptlrpc_body(msg);
1240                 if (pb == NULL) {
1241                         CERROR("invalid msg %p: no ptlrpc body!\n", msg);
1242                         return 0;
1243                 }
1244                 return pb->pb_service_time;
1245         }
1246         default:
1247                 CERROR("incorrect message magic: %08x\n", msg->lm_magic);
1248                 return 0;
1249         }
1250 }
1251
1252 char *lustre_msg_get_jobid(struct lustre_msg *msg)
1253 {
1254         switch (msg->lm_magic) {
1255         case LUSTRE_MSG_MAGIC_V2: {
1256                 struct ptlrpc_body *pb =
1257                         lustre_msg_buf_v2(msg, MSG_PTLRPC_BODY_OFF,
1258                                           sizeof(struct ptlrpc_body));
1259                 if (!pb)
1260                         return NULL;
1261
1262                 return pb->pb_jobid;
1263         }
1264         default:
1265                 CERROR("incorrect message magic: %08x\n", msg->lm_magic);
1266                 return NULL;
1267         }
1268 }
1269 EXPORT_SYMBOL(lustre_msg_get_jobid);
1270
1271 __u32 lustre_msg_get_cksum(struct lustre_msg *msg)
1272 {
1273         switch (msg->lm_magic) {
1274         case LUSTRE_MSG_MAGIC_V2:
1275                 return msg->lm_cksum;
1276         default:
1277                 CERROR("incorrect message magic: %08x\n", msg->lm_magic);
1278                 return 0;
1279         }
1280 }
1281
1282 __u64 lustre_msg_get_mbits(struct lustre_msg *msg)
1283 {
1284         switch (msg->lm_magic) {
1285         case LUSTRE_MSG_MAGIC_V2: {
1286                 struct ptlrpc_body *pb = lustre_msg_ptlrpc_body(msg);
1287                 if (pb == NULL) {
1288                         CERROR("invalid msg %p: no ptlrpc body!\n", msg);
1289                         return 0;
1290                 }
1291                 return pb->pb_mbits;
1292         }
1293         default:
1294                 CERROR("incorrect message magic: %08x\n", msg->lm_magic);
1295                 return 0;
1296         }
1297 }
1298
1299 __u32 lustre_msg_calc_cksum(struct lustre_msg *msg)
1300 {
1301         switch (msg->lm_magic) {
1302         case LUSTRE_MSG_MAGIC_V2: {
1303                 struct ptlrpc_body *pb = lustre_msg_ptlrpc_body(msg);
1304                 __u32 len = lustre_msg_buflen(msg, MSG_PTLRPC_BODY_OFF);
1305
1306                 unsigned int hsize = 4;
1307                 __u32 crc;
1308
1309                 LASSERTF(pb != NULL, "invalid msg %p: no ptlrpc body!\n", msg);
1310                 cfs_crypto_hash_digest(CFS_HASH_ALG_CRC32, (unsigned char *)pb,
1311                                        len, NULL, 0, (unsigned char *)&crc,
1312                                        &hsize);
1313                 return crc;
1314         }
1315         default:
1316                 CERROR("incorrect message magic: %08x\n", msg->lm_magic);
1317                 return 0;
1318         }
1319 }
1320
1321 void lustre_msg_set_handle(struct lustre_msg *msg, struct lustre_handle *handle)
1322 {
1323         switch (msg->lm_magic) {
1324         case LUSTRE_MSG_MAGIC_V2: {
1325                 struct ptlrpc_body *pb = lustre_msg_ptlrpc_body(msg);
1326                 LASSERTF(pb, "invalid msg %p: no ptlrpc body!\n", msg);
1327                 pb->pb_handle = *handle;
1328                 return;
1329         }
1330         default:
1331                 LASSERTF(0, "incorrect message magic: %08x\n", msg->lm_magic);
1332         }
1333 }
1334
1335 void lustre_msg_set_type(struct lustre_msg *msg, __u32 type)
1336 {
1337         switch (msg->lm_magic) {
1338         case LUSTRE_MSG_MAGIC_V2: {
1339                 struct ptlrpc_body *pb = lustre_msg_ptlrpc_body(msg);
1340                 LASSERTF(pb, "invalid msg %p: no ptlrpc body!\n", msg);
1341                 pb->pb_type = type;
1342                 return;
1343                 }
1344         default:
1345                 LASSERTF(0, "incorrect message magic: %08x\n", msg->lm_magic);
1346         }
1347 }
1348
1349 void lustre_msg_set_opc(struct lustre_msg *msg, __u32 opc)
1350 {
1351         switch (msg->lm_magic) {
1352         case LUSTRE_MSG_MAGIC_V2: {
1353                 struct ptlrpc_body *pb = lustre_msg_ptlrpc_body(msg);
1354                 LASSERTF(pb, "invalid msg %p: no ptlrpc body!\n", msg);
1355                 pb->pb_opc = opc;
1356                 return;
1357         }
1358         default:
1359                 LASSERTF(0, "incorrect message magic: %08x\n", msg->lm_magic);
1360         }
1361 }
1362
1363 void lustre_msg_set_last_xid(struct lustre_msg *msg, __u64 last_xid)
1364 {
1365         switch (msg->lm_magic) {
1366         case LUSTRE_MSG_MAGIC_V2: {
1367                 struct ptlrpc_body *pb = lustre_msg_ptlrpc_body(msg);
1368                 LASSERTF(pb != NULL, "invalid msg %p: no ptlrpc body!\n", msg);
1369                 pb->pb_last_xid = last_xid;
1370                 return;
1371         }
1372         default:
1373                 LASSERTF(0, "incorrect message magic: %08x\n", msg->lm_magic);
1374         }
1375 }
1376 EXPORT_SYMBOL(lustre_msg_set_last_xid);
1377
1378 void lustre_msg_set_tag(struct lustre_msg *msg, __u16 tag)
1379 {
1380         switch (msg->lm_magic) {
1381         case LUSTRE_MSG_MAGIC_V2: {
1382                 struct ptlrpc_body *pb = lustre_msg_ptlrpc_body(msg);
1383                 LASSERTF(pb, "invalid msg %p: no ptlrpc body!\n", msg);
1384                 pb->pb_tag = tag;
1385                 return;
1386         }
1387         default:
1388                 LASSERTF(0, "incorrect message magic: %08x\n", msg->lm_magic);
1389         }
1390 }
1391 EXPORT_SYMBOL(lustre_msg_set_tag);
1392
1393 void lustre_msg_set_last_committed(struct lustre_msg *msg, __u64 last_committed)
1394 {
1395         switch (msg->lm_magic) {
1396         case LUSTRE_MSG_MAGIC_V2: {
1397                 struct ptlrpc_body *pb = lustre_msg_ptlrpc_body(msg);
1398                 LASSERTF(pb != NULL, "invalid msg %p: no ptlrpc body!\n", msg);
1399                 pb->pb_last_committed = last_committed;
1400                 return;
1401         }
1402         default:
1403                 LASSERTF(0, "incorrect message magic: %08x\n", msg->lm_magic);
1404         }
1405 }
1406
1407 void lustre_msg_set_versions(struct lustre_msg *msg, __u64 *versions)
1408 {
1409         switch (msg->lm_magic) {
1410         case LUSTRE_MSG_MAGIC_V2: {
1411                 struct ptlrpc_body *pb = lustre_msg_ptlrpc_body(msg);
1412                 LASSERTF(pb != NULL, "invalid msg %p: no ptlrpc body!\n", msg);
1413                 pb->pb_pre_versions[0] = versions[0];
1414                 pb->pb_pre_versions[1] = versions[1];
1415                 pb->pb_pre_versions[2] = versions[2];
1416                 pb->pb_pre_versions[3] = versions[3];
1417                 return;
1418         }
1419         default:
1420                 LASSERTF(0, "incorrect message magic: %08x\n", msg->lm_magic);
1421         }
1422 }
1423 EXPORT_SYMBOL(lustre_msg_set_versions);
1424
1425 void lustre_msg_set_transno(struct lustre_msg *msg, __u64 transno)
1426 {
1427         switch (msg->lm_magic) {
1428         case LUSTRE_MSG_MAGIC_V2: {
1429                 struct ptlrpc_body *pb = lustre_msg_ptlrpc_body(msg);
1430                 LASSERTF(pb != NULL, "invalid msg %p: no ptlrpc body!\n", msg);
1431                 pb->pb_transno = transno;
1432                 return;
1433         }
1434         default:
1435                 LASSERTF(0, "incorrect message magic: %08x\n", msg->lm_magic);
1436         }
1437 }
1438 EXPORT_SYMBOL(lustre_msg_set_transno);
1439
1440 void lustre_msg_set_status(struct lustre_msg *msg, __u32 status)
1441 {
1442         switch (msg->lm_magic) {
1443         case LUSTRE_MSG_MAGIC_V2: {
1444                 struct ptlrpc_body *pb = lustre_msg_ptlrpc_body(msg);
1445                 LASSERTF(pb != NULL, "invalid msg %p: no ptlrpc body!\n", msg);
1446                 pb->pb_status = status;
1447                 return;
1448         }
1449         default:
1450                 LASSERTF(0, "incorrect message magic: %08x\n", msg->lm_magic);
1451         }
1452 }
1453 EXPORT_SYMBOL(lustre_msg_set_status);
1454
1455 void lustre_msg_set_conn_cnt(struct lustre_msg *msg, __u32 conn_cnt)
1456 {
1457         switch (msg->lm_magic) {
1458         case LUSTRE_MSG_MAGIC_V2: {
1459                 struct ptlrpc_body *pb = lustre_msg_ptlrpc_body(msg);
1460                 LASSERTF(pb != NULL, "invalid msg %p: no ptlrpc body!\n", msg);
1461                 pb->pb_conn_cnt = conn_cnt;
1462                 return;
1463         }
1464         default:
1465                 LASSERTF(0, "incorrect message magic: %08x\n", msg->lm_magic);
1466         }
1467 }
1468
1469 void lustre_msg_set_timeout(struct lustre_msg *msg, __u32 timeout)
1470 {
1471         switch (msg->lm_magic) {
1472         case LUSTRE_MSG_MAGIC_V2: {
1473                 struct ptlrpc_body *pb = lustre_msg_ptlrpc_body(msg);
1474                 LASSERTF(pb != NULL, "invalid msg %p: no ptlrpc body!\n", msg);
1475                 pb->pb_timeout = timeout;
1476                 return;
1477         }
1478         default:
1479                 LASSERTF(0, "incorrect message magic: %08x\n", msg->lm_magic);
1480         }
1481 }
1482
1483 void lustre_msg_set_service_time(struct lustre_msg *msg, __u32 service_time)
1484 {
1485         switch (msg->lm_magic) {
1486         case LUSTRE_MSG_MAGIC_V2: {
1487                 struct ptlrpc_body *pb = lustre_msg_ptlrpc_body(msg);
1488                 LASSERTF(pb, "invalid msg %p: no ptlrpc body!\n", msg);
1489                 pb->pb_service_time = service_time;
1490                 return;
1491         }
1492         default:
1493                 LASSERTF(0, "incorrect message magic: %08x\n", msg->lm_magic);
1494         }
1495 }
1496
1497 void lustre_msg_set_jobid(struct lustre_msg *msg, char *jobid)
1498 {
1499         switch (msg->lm_magic) {
1500         case LUSTRE_MSG_MAGIC_V2: {
1501                 __u32 opc = lustre_msg_get_opc(msg);
1502                 struct ptlrpc_body *pb;
1503
1504                 /* Don't set jobid for ldlm ast RPCs, they've been shrinked.
1505                  * See the comment in ptlrpc_request_pack(). */
1506                 if (!opc || opc == LDLM_BL_CALLBACK ||
1507                     opc == LDLM_CP_CALLBACK || opc == LDLM_GL_CALLBACK)
1508                         return;
1509
1510                 pb = lustre_msg_buf_v2(msg, MSG_PTLRPC_BODY_OFF,
1511                                        sizeof(struct ptlrpc_body));
1512                 LASSERTF(pb, "invalid msg %p: no ptlrpc body!\n", msg);
1513
1514                 if (jobid != NULL)
1515                         memcpy(pb->pb_jobid, jobid, sizeof(pb->pb_jobid));
1516                 else if (pb->pb_jobid[0] == '\0')
1517                         lustre_get_jobid(pb->pb_jobid, sizeof(pb->pb_jobid));
1518                 return;
1519         }
1520         default:
1521                 LASSERTF(0, "incorrect message magic: %08x\n", msg->lm_magic);
1522         }
1523 }
1524 EXPORT_SYMBOL(lustre_msg_set_jobid);
1525
1526 void lustre_msg_set_cksum(struct lustre_msg *msg, __u32 cksum)
1527 {
1528         switch (msg->lm_magic) {
1529         case LUSTRE_MSG_MAGIC_V2:
1530                 msg->lm_cksum = cksum;
1531                 return;
1532         default:
1533                 LASSERTF(0, "incorrect message magic: %08x\n", msg->lm_magic);
1534         }
1535 }
1536
1537 void lustre_msg_set_mbits(struct lustre_msg *msg, __u64 mbits)
1538 {
1539         switch (msg->lm_magic) {
1540         case LUSTRE_MSG_MAGIC_V2: {
1541                 struct ptlrpc_body *pb = lustre_msg_ptlrpc_body(msg);
1542
1543                 LASSERTF(pb != NULL, "invalid msg %p: no ptlrpc body!\n", msg);
1544                 pb->pb_mbits = mbits;
1545                 return;
1546         }
1547         default:
1548                 LASSERTF(0, "incorrect message magic: %08x\n", msg->lm_magic);
1549         }
1550 }
1551
1552 void ptlrpc_request_set_replen(struct ptlrpc_request *req)
1553 {
1554         int count = req_capsule_filled_sizes(&req->rq_pill, RCL_SERVER);
1555
1556         req->rq_replen = lustre_msg_size(req->rq_reqmsg->lm_magic, count,
1557                                          req->rq_pill.rc_area[RCL_SERVER]);
1558         if (req->rq_reqmsg->lm_magic == LUSTRE_MSG_MAGIC_V2)
1559                 req->rq_reqmsg->lm_repsize = req->rq_replen;
1560 }
1561 EXPORT_SYMBOL(ptlrpc_request_set_replen);
1562
1563 void ptlrpc_req_set_repsize(struct ptlrpc_request *req, int count, __u32 *lens)
1564 {
1565         req->rq_replen = lustre_msg_size(req->rq_reqmsg->lm_magic, count, lens);
1566         if (req->rq_reqmsg->lm_magic == LUSTRE_MSG_MAGIC_V2)
1567                 req->rq_reqmsg->lm_repsize = req->rq_replen;
1568 }
1569
1570 /**
1571  * Send a remote set_info_async.
1572  *
1573  * This may go from client to server or server to client.
1574  */
1575 int do_set_info_async(struct obd_import *imp,
1576                       int opcode, int version,
1577                       size_t keylen, void *key,
1578                       size_t vallen, void *val,
1579                       struct ptlrpc_request_set *set)
1580 {
1581         struct ptlrpc_request *req;
1582         char                  *tmp;
1583         int                    rc;
1584         ENTRY;
1585
1586         req = ptlrpc_request_alloc(imp, &RQF_OBD_SET_INFO);
1587         if (req == NULL)
1588                 RETURN(-ENOMEM);
1589
1590         req_capsule_set_size(&req->rq_pill, &RMF_SETINFO_KEY,
1591                              RCL_CLIENT, keylen);
1592         req_capsule_set_size(&req->rq_pill, &RMF_SETINFO_VAL,
1593                              RCL_CLIENT, vallen);
1594         rc = ptlrpc_request_pack(req, version, opcode);
1595         if (rc) {
1596                 ptlrpc_request_free(req);
1597                 RETURN(rc);
1598         }
1599
1600         tmp = req_capsule_client_get(&req->rq_pill, &RMF_SETINFO_KEY);
1601         memcpy(tmp, key, keylen);
1602         tmp = req_capsule_client_get(&req->rq_pill, &RMF_SETINFO_VAL);
1603         memcpy(tmp, val, vallen);
1604
1605         ptlrpc_request_set_replen(req);
1606
1607         if (set) {
1608                 ptlrpc_set_add_req(set, req);
1609                 ptlrpc_check_set(NULL, set);
1610         } else {
1611                 rc = ptlrpc_queue_wait(req);
1612                 ptlrpc_req_finished(req);
1613         }
1614
1615         RETURN(rc);
1616 }
1617 EXPORT_SYMBOL(do_set_info_async);
1618
1619 /* byte flipping routines for all wire types declared in
1620  * lustre_idl.h implemented here.
1621  */
1622 void lustre_swab_ptlrpc_body(struct ptlrpc_body *body)
1623 {
1624         __swab32s(&body->pb_type);
1625         __swab32s(&body->pb_version);
1626         __swab32s(&body->pb_opc);
1627         __swab32s(&body->pb_status);
1628         __swab64s(&body->pb_last_xid);
1629         __swab16s(&body->pb_tag);
1630         CLASSERT(offsetof(typeof(*body), pb_padding0) != 0);
1631         CLASSERT(offsetof(typeof(*body), pb_padding1) != 0);
1632         __swab64s(&body->pb_last_committed);
1633         __swab64s(&body->pb_transno);
1634         __swab32s(&body->pb_flags);
1635         __swab32s(&body->pb_op_flags);
1636         __swab32s(&body->pb_conn_cnt);
1637         __swab32s(&body->pb_timeout);
1638         __swab32s(&body->pb_service_time);
1639         __swab32s(&body->pb_limit);
1640         __swab64s(&body->pb_slv);
1641         __swab64s(&body->pb_pre_versions[0]);
1642         __swab64s(&body->pb_pre_versions[1]);
1643         __swab64s(&body->pb_pre_versions[2]);
1644         __swab64s(&body->pb_pre_versions[3]);
1645         __swab64s(&body->pb_mbits);
1646         CLASSERT(offsetof(typeof(*body), pb_padding64_0) != 0);
1647         CLASSERT(offsetof(typeof(*body), pb_padding64_1) != 0);
1648         CLASSERT(offsetof(typeof(*body), pb_padding64_2) != 0);
1649         /* While we need to maintain compatibility between
1650          * clients and servers without ptlrpc_body_v2 (< 2.3)
1651          * do not swab any fields beyond pb_jobid, as we are
1652          * using this swab function for both ptlrpc_body
1653          * and ptlrpc_body_v2. */
1654         /* pb_jobid is an ASCII string and should not be swabbed */
1655         CLASSERT(offsetof(typeof(*body), pb_jobid) != 0);
1656 }
1657
1658 void lustre_swab_connect(struct obd_connect_data *ocd)
1659 {
1660         __swab64s(&ocd->ocd_connect_flags);
1661         __swab32s(&ocd->ocd_version);
1662         __swab32s(&ocd->ocd_grant);
1663         __swab64s(&ocd->ocd_ibits_known);
1664         __swab32s(&ocd->ocd_index);
1665         __swab32s(&ocd->ocd_brw_size);
1666         /* ocd_blocksize and ocd_inodespace don't need to be swabbed because
1667          * they are 8-byte values */
1668         __swab16s(&ocd->ocd_grant_tax_kb);
1669         __swab32s(&ocd->ocd_grant_max_blks);
1670         __swab64s(&ocd->ocd_transno);
1671         __swab32s(&ocd->ocd_group);
1672         __swab32s(&ocd->ocd_cksum_types);
1673         __swab32s(&ocd->ocd_instance);
1674         /* Fields after ocd_cksum_types are only accessible by the receiver
1675          * if the corresponding flag in ocd_connect_flags is set. Accessing
1676          * any field after ocd_maxbytes on the receiver without a valid flag
1677          * may result in out-of-bound memory access and kernel oops. */
1678         if (ocd->ocd_connect_flags & OBD_CONNECT_MAX_EASIZE)
1679                 __swab32s(&ocd->ocd_max_easize);
1680         if (ocd->ocd_connect_flags & OBD_CONNECT_MAXBYTES)
1681                 __swab64s(&ocd->ocd_maxbytes);
1682         if (ocd->ocd_connect_flags & OBD_CONNECT_MULTIMODRPCS)
1683                 __swab16s(&ocd->ocd_maxmodrpcs);
1684         CLASSERT(offsetof(typeof(*ocd), padding0) != 0);
1685         CLASSERT(offsetof(typeof(*ocd), padding1) != 0);
1686         if (ocd->ocd_connect_flags & OBD_CONNECT_FLAGS2)
1687                 __swab64s(&ocd->ocd_connect_flags2);
1688         CLASSERT(offsetof(typeof(*ocd), padding3) != 0);
1689         CLASSERT(offsetof(typeof(*ocd), padding4) != 0);
1690         CLASSERT(offsetof(typeof(*ocd), padding5) != 0);
1691         CLASSERT(offsetof(typeof(*ocd), padding6) != 0);
1692         CLASSERT(offsetof(typeof(*ocd), padding7) != 0);
1693         CLASSERT(offsetof(typeof(*ocd), padding8) != 0);
1694         CLASSERT(offsetof(typeof(*ocd), padding9) != 0);
1695         CLASSERT(offsetof(typeof(*ocd), paddingA) != 0);
1696         CLASSERT(offsetof(typeof(*ocd), paddingB) != 0);
1697         CLASSERT(offsetof(typeof(*ocd), paddingC) != 0);
1698         CLASSERT(offsetof(typeof(*ocd), paddingD) != 0);
1699         CLASSERT(offsetof(typeof(*ocd), paddingE) != 0);
1700         CLASSERT(offsetof(typeof(*ocd), paddingF) != 0);
1701 }
1702
1703 static void lustre_swab_ost_layout(struct ost_layout *ol)
1704 {
1705         __swab32s(&ol->ol_stripe_size);
1706         __swab32s(&ol->ol_stripe_count);
1707         __swab64s(&ol->ol_comp_start);
1708         __swab64s(&ol->ol_comp_end);
1709         __swab32s(&ol->ol_comp_id);
1710 }
1711
1712 void lustre_swab_obdo (struct obdo  *o)
1713 {
1714         __swab64s(&o->o_valid);
1715         lustre_swab_ost_id(&o->o_oi);
1716         __swab64s(&o->o_parent_seq);
1717         __swab64s(&o->o_size);
1718         __swab64s(&o->o_mtime);
1719         __swab64s(&o->o_atime);
1720         __swab64s(&o->o_ctime);
1721         __swab64s(&o->o_blocks);
1722         __swab64s(&o->o_grant);
1723         __swab32s(&o->o_blksize);
1724         __swab32s(&o->o_mode);
1725         __swab32s(&o->o_uid);
1726         __swab32s(&o->o_gid);
1727         __swab32s(&o->o_flags);
1728         __swab32s(&o->o_nlink);
1729         __swab32s(&o->o_parent_oid);
1730         __swab32s(&o->o_misc);
1731         __swab64s(&o->o_ioepoch);
1732         __swab32s(&o->o_stripe_idx);
1733         __swab32s(&o->o_parent_ver);
1734         lustre_swab_ost_layout(&o->o_layout);
1735         __swab32s(&o->o_layout_version);
1736         __swab32s(&o->o_uid_h);
1737         __swab32s(&o->o_gid_h);
1738         __swab64s(&o->o_data_version);
1739         __swab32s(&o->o_projid);
1740         CLASSERT(offsetof(typeof(*o), o_padding_4) != 0);
1741         CLASSERT(offsetof(typeof(*o), o_padding_5) != 0);
1742         CLASSERT(offsetof(typeof(*o), o_padding_6) != 0);
1743
1744 }
1745 EXPORT_SYMBOL(lustre_swab_obdo);
1746
1747 void lustre_swab_obd_statfs (struct obd_statfs *os)
1748 {
1749         __swab64s(&os->os_type);
1750         __swab64s(&os->os_blocks);
1751         __swab64s(&os->os_bfree);
1752         __swab64s(&os->os_bavail);
1753         __swab64s(&os->os_files);
1754         __swab64s(&os->os_ffree);
1755         /* no need to swab os_fsid */
1756         __swab32s(&os->os_bsize);
1757         __swab32s(&os->os_namelen);
1758         __swab64s(&os->os_maxbytes);
1759         __swab32s(&os->os_state);
1760         __swab32s(&os->os_fprecreated);
1761         __swab32s(&os->os_granted);
1762         CLASSERT(offsetof(typeof(*os), os_spare3) != 0);
1763         CLASSERT(offsetof(typeof(*os), os_spare4) != 0);
1764         CLASSERT(offsetof(typeof(*os), os_spare5) != 0);
1765         CLASSERT(offsetof(typeof(*os), os_spare6) != 0);
1766         CLASSERT(offsetof(typeof(*os), os_spare7) != 0);
1767         CLASSERT(offsetof(typeof(*os), os_spare8) != 0);
1768         CLASSERT(offsetof(typeof(*os), os_spare9) != 0);
1769 }
1770
1771 void lustre_swab_obd_ioobj(struct obd_ioobj *ioo)
1772 {
1773         lustre_swab_ost_id(&ioo->ioo_oid);
1774         __swab32s(&ioo->ioo_max_brw);
1775         __swab32s(&ioo->ioo_bufcnt);
1776 }
1777
1778 void lustre_swab_niobuf_remote(struct niobuf_remote *nbr)
1779 {
1780         __swab64s(&nbr->rnb_offset);
1781         __swab32s(&nbr->rnb_len);
1782         __swab32s(&nbr->rnb_flags);
1783 }
1784
1785 void lustre_swab_ost_body (struct ost_body *b)
1786 {
1787         lustre_swab_obdo (&b->oa);
1788 }
1789
1790 void lustre_swab_ost_last_id(u64 *id)
1791 {
1792         __swab64s(id);
1793 }
1794
1795 void lustre_swab_generic_32s(__u32 *val)
1796 {
1797         __swab32s(val);
1798 }
1799
1800 void lustre_swab_gl_lquota_desc(struct ldlm_gl_lquota_desc *desc)
1801 {
1802         lustre_swab_lu_fid(&desc->gl_id.qid_fid);
1803         __swab64s(&desc->gl_flags);
1804         __swab64s(&desc->gl_ver);
1805         __swab64s(&desc->gl_hardlimit);
1806         __swab64s(&desc->gl_softlimit);
1807         __swab64s(&desc->gl_time);
1808         CLASSERT(offsetof(typeof(*desc), gl_pad2) != 0);
1809 }
1810 EXPORT_SYMBOL(lustre_swab_gl_lquota_desc);
1811
1812 void lustre_swab_gl_barrier_desc(struct ldlm_gl_barrier_desc *desc)
1813 {
1814         __swab32s(&desc->lgbd_status);
1815         __swab32s(&desc->lgbd_timeout);
1816         CLASSERT(offsetof(typeof(*desc), lgbd_padding) != 0);
1817 }
1818 EXPORT_SYMBOL(lustre_swab_gl_barrier_desc);
1819
1820 void lustre_swab_ost_lvb_v1(struct ost_lvb_v1 *lvb)
1821 {
1822         __swab64s(&lvb->lvb_size);
1823         __swab64s(&lvb->lvb_mtime);
1824         __swab64s(&lvb->lvb_atime);
1825         __swab64s(&lvb->lvb_ctime);
1826         __swab64s(&lvb->lvb_blocks);
1827 }
1828 EXPORT_SYMBOL(lustre_swab_ost_lvb_v1);
1829
1830 void lustre_swab_ost_lvb(struct ost_lvb *lvb)
1831 {
1832         __swab64s(&lvb->lvb_size);
1833         __swab64s(&lvb->lvb_mtime);
1834         __swab64s(&lvb->lvb_atime);
1835         __swab64s(&lvb->lvb_ctime);
1836         __swab64s(&lvb->lvb_blocks);
1837         __swab32s(&lvb->lvb_mtime_ns);
1838         __swab32s(&lvb->lvb_atime_ns);
1839         __swab32s(&lvb->lvb_ctime_ns);
1840         __swab32s(&lvb->lvb_padding);
1841 }
1842 EXPORT_SYMBOL(lustre_swab_ost_lvb);
1843
1844 void lustre_swab_lquota_lvb(struct lquota_lvb *lvb)
1845 {
1846         __swab64s(&lvb->lvb_flags);
1847         __swab64s(&lvb->lvb_id_may_rel);
1848         __swab64s(&lvb->lvb_id_rel);
1849         __swab64s(&lvb->lvb_id_qunit);
1850         __swab64s(&lvb->lvb_pad1);
1851 }
1852 EXPORT_SYMBOL(lustre_swab_lquota_lvb);
1853
1854 void lustre_swab_barrier_lvb(struct barrier_lvb *lvb)
1855 {
1856         __swab32s(&lvb->lvb_status);
1857         __swab32s(&lvb->lvb_index);
1858         CLASSERT(offsetof(typeof(*lvb), lvb_padding) != 0);
1859 }
1860 EXPORT_SYMBOL(lustre_swab_barrier_lvb);
1861
1862 void lustre_swab_mdt_body (struct mdt_body *b)
1863 {
1864         lustre_swab_lu_fid(&b->mbo_fid1);
1865         lustre_swab_lu_fid(&b->mbo_fid2);
1866         /* handle is opaque */
1867         __swab64s(&b->mbo_valid);
1868         __swab64s(&b->mbo_size);
1869         __swab64s(&b->mbo_mtime);
1870         __swab64s(&b->mbo_atime);
1871         __swab64s(&b->mbo_ctime);
1872         __swab64s(&b->mbo_blocks);
1873         __swab64s(&b->mbo_version);
1874         __swab64s(&b->mbo_t_state);
1875         __swab32s(&b->mbo_fsuid);
1876         __swab32s(&b->mbo_fsgid);
1877         __swab32s(&b->mbo_capability);
1878         __swab32s(&b->mbo_mode);
1879         __swab32s(&b->mbo_uid);
1880         __swab32s(&b->mbo_gid);
1881         __swab32s(&b->mbo_flags);
1882         __swab32s(&b->mbo_rdev);
1883         __swab32s(&b->mbo_nlink);
1884         __swab32s(&b->mbo_layout_gen);
1885         __swab32s(&b->mbo_suppgid);
1886         __swab32s(&b->mbo_eadatasize);
1887         __swab32s(&b->mbo_aclsize);
1888         __swab32s(&b->mbo_max_mdsize);
1889         CLASSERT(offsetof(typeof(*b), mbo_unused3) != 0);
1890         __swab32s(&b->mbo_uid_h);
1891         __swab32s(&b->mbo_gid_h);
1892         __swab32s(&b->mbo_projid);
1893         __swab64s(&b->mbo_dom_size);
1894         __swab64s(&b->mbo_dom_blocks);
1895         CLASSERT(offsetof(typeof(*b), mbo_padding_8) != 0);
1896         CLASSERT(offsetof(typeof(*b), mbo_padding_9) != 0);
1897         CLASSERT(offsetof(typeof(*b), mbo_padding_10) != 0);
1898 }
1899
1900 void lustre_swab_mdt_ioepoch(struct mdt_ioepoch *b)
1901 {
1902         /* mio_open_handle is opaque */
1903         CLASSERT(offsetof(typeof(*b), mio_unused1) != 0);
1904         CLASSERT(offsetof(typeof(*b), mio_unused2) != 0);
1905         CLASSERT(offsetof(typeof(*b), mio_padding) != 0);
1906 }
1907
1908 void lustre_swab_mgs_target_info(struct mgs_target_info *mti)
1909 {
1910         int i;
1911
1912         __swab32s(&mti->mti_lustre_ver);
1913         __swab32s(&mti->mti_stripe_index);
1914         __swab32s(&mti->mti_config_ver);
1915         __swab32s(&mti->mti_flags);
1916         __swab32s(&mti->mti_instance);
1917         __swab32s(&mti->mti_nid_count);
1918         CLASSERT(sizeof(lnet_nid_t) == sizeof(__u64));
1919         for (i = 0; i < MTI_NIDS_MAX; i++)
1920                 __swab64s(&mti->mti_nids[i]);
1921 }
1922
1923 void lustre_swab_mgs_nidtbl_entry(struct mgs_nidtbl_entry *entry)
1924 {
1925         __u8 i;
1926
1927         __swab64s(&entry->mne_version);
1928         __swab32s(&entry->mne_instance);
1929         __swab32s(&entry->mne_index);
1930         __swab32s(&entry->mne_length);
1931
1932         /* mne_nid_(count|type) must be one byte size because we're gonna
1933          * access it w/o swapping. */
1934         CLASSERT(sizeof(entry->mne_nid_count) == sizeof(__u8));
1935         CLASSERT(sizeof(entry->mne_nid_type) == sizeof(__u8));
1936
1937         /* remove this assertion if ipv6 is supported. */
1938         LASSERT(entry->mne_nid_type == 0);
1939         for (i = 0; i < entry->mne_nid_count; i++) {
1940                 CLASSERT(sizeof(lnet_nid_t) == sizeof(__u64));
1941                 __swab64s(&entry->u.nids[i]);
1942         }
1943 }
1944 EXPORT_SYMBOL(lustre_swab_mgs_nidtbl_entry);
1945
1946 void lustre_swab_mgs_config_body(struct mgs_config_body *body)
1947 {
1948         __swab64s(&body->mcb_offset);
1949         __swab32s(&body->mcb_units);
1950         __swab16s(&body->mcb_type);
1951 }
1952
1953 void lustre_swab_mgs_config_res(struct mgs_config_res *body)
1954 {
1955         __swab64s(&body->mcr_offset);
1956         __swab64s(&body->mcr_size);
1957 }
1958
1959 static void lustre_swab_obd_dqinfo (struct obd_dqinfo *i)
1960 {
1961         __swab64s (&i->dqi_bgrace);
1962         __swab64s (&i->dqi_igrace);
1963         __swab32s (&i->dqi_flags);
1964         __swab32s (&i->dqi_valid);
1965 }
1966
1967 static void lustre_swab_obd_dqblk (struct obd_dqblk *b)
1968 {
1969         __swab64s (&b->dqb_ihardlimit);
1970         __swab64s (&b->dqb_isoftlimit);
1971         __swab64s (&b->dqb_curinodes);
1972         __swab64s (&b->dqb_bhardlimit);
1973         __swab64s (&b->dqb_bsoftlimit);
1974         __swab64s (&b->dqb_curspace);
1975         __swab64s (&b->dqb_btime);
1976         __swab64s (&b->dqb_itime);
1977         __swab32s (&b->dqb_valid);
1978         CLASSERT(offsetof(typeof(*b), dqb_padding) != 0);
1979 }
1980
1981 void lustre_swab_obd_quotactl (struct obd_quotactl *q)
1982 {
1983         __swab32s (&q->qc_cmd);
1984         __swab32s (&q->qc_type);
1985         __swab32s (&q->qc_id);
1986         __swab32s (&q->qc_stat);
1987         lustre_swab_obd_dqinfo (&q->qc_dqinfo);
1988         lustre_swab_obd_dqblk (&q->qc_dqblk);
1989 }
1990
1991 void lustre_swab_fid2path(struct getinfo_fid2path *gf)
1992 {
1993         lustre_swab_lu_fid(&gf->gf_fid);
1994         __swab64s(&gf->gf_recno);
1995         __swab32s(&gf->gf_linkno);
1996         __swab32s(&gf->gf_pathlen);
1997 }
1998 EXPORT_SYMBOL(lustre_swab_fid2path);
1999
2000 static void lustre_swab_fiemap_extent(struct fiemap_extent *fm_extent)
2001 {
2002         __swab64s(&fm_extent->fe_logical);
2003         __swab64s(&fm_extent->fe_physical);
2004         __swab64s(&fm_extent->fe_length);
2005         __swab32s(&fm_extent->fe_flags);
2006         __swab32s(&fm_extent->fe_device);
2007 }
2008
2009 void lustre_swab_fiemap(struct fiemap *fiemap)
2010 {
2011         __u32 i;
2012
2013         __swab64s(&fiemap->fm_start);
2014         __swab64s(&fiemap->fm_length);
2015         __swab32s(&fiemap->fm_flags);
2016         __swab32s(&fiemap->fm_mapped_extents);
2017         __swab32s(&fiemap->fm_extent_count);
2018         __swab32s(&fiemap->fm_reserved);
2019
2020         for (i = 0; i < fiemap->fm_mapped_extents; i++)
2021                 lustre_swab_fiemap_extent(&fiemap->fm_extents[i]);
2022 }
2023
2024 void lustre_swab_idx_info(struct idx_info *ii)
2025 {
2026         __swab32s(&ii->ii_magic);
2027         __swab32s(&ii->ii_flags);
2028         __swab16s(&ii->ii_count);
2029         __swab32s(&ii->ii_attrs);
2030         lustre_swab_lu_fid(&ii->ii_fid);
2031         __swab64s(&ii->ii_version);
2032         __swab64s(&ii->ii_hash_start);
2033         __swab64s(&ii->ii_hash_end);
2034         __swab16s(&ii->ii_keysize);
2035         __swab16s(&ii->ii_recsize);
2036 }
2037
2038 void lustre_swab_lip_header(struct lu_idxpage *lip)
2039 {
2040         /* swab header */
2041         __swab32s(&lip->lip_magic);
2042         __swab16s(&lip->lip_flags);
2043         __swab16s(&lip->lip_nr);
2044 }
2045 EXPORT_SYMBOL(lustre_swab_lip_header);
2046
2047 void lustre_swab_mdt_rec_reint (struct mdt_rec_reint *rr)
2048 {
2049         __swab32s(&rr->rr_opcode);
2050         __swab32s(&rr->rr_cap);
2051         __swab32s(&rr->rr_fsuid);
2052         /* rr_fsuid_h is unused */
2053         __swab32s(&rr->rr_fsgid);
2054         /* rr_fsgid_h is unused */
2055         __swab32s(&rr->rr_suppgid1);
2056         /* rr_suppgid1_h is unused */
2057         __swab32s(&rr->rr_suppgid2);
2058         /* rr_suppgid2_h is unused */
2059         lustre_swab_lu_fid(&rr->rr_fid1);
2060         lustre_swab_lu_fid(&rr->rr_fid2);
2061         __swab64s(&rr->rr_mtime);
2062         __swab64s(&rr->rr_atime);
2063         __swab64s(&rr->rr_ctime);
2064         __swab64s(&rr->rr_size);
2065         __swab64s(&rr->rr_blocks);
2066         __swab32s(&rr->rr_bias);
2067         __swab32s(&rr->rr_mode);
2068         __swab32s(&rr->rr_flags);
2069         __swab32s(&rr->rr_flags_h);
2070         __swab32s(&rr->rr_umask);
2071         __swab16s(&rr->rr_mirror_id);
2072
2073         CLASSERT(offsetof(typeof(*rr), rr_padding_4) != 0);
2074 };
2075
2076 void lustre_swab_lov_desc (struct lov_desc *ld)
2077 {
2078         __swab32s (&ld->ld_tgt_count);
2079         __swab32s (&ld->ld_active_tgt_count);
2080         __swab32s (&ld->ld_default_stripe_count);
2081         __swab32s (&ld->ld_pattern);
2082         __swab64s (&ld->ld_default_stripe_size);
2083         __swab64s (&ld->ld_default_stripe_offset);
2084         __swab32s (&ld->ld_qos_maxage);
2085         /* uuid endian insensitive */
2086 }
2087 EXPORT_SYMBOL(lustre_swab_lov_desc);
2088
2089 void lustre_swab_lmv_desc (struct lmv_desc *ld)
2090 {
2091         __swab32s (&ld->ld_tgt_count);
2092         __swab32s (&ld->ld_active_tgt_count);
2093         __swab32s (&ld->ld_default_stripe_count);
2094         __swab32s (&ld->ld_pattern);
2095         __swab64s (&ld->ld_default_hash_size);
2096         __swab32s (&ld->ld_qos_maxage);
2097         /* uuid endian insensitive */
2098 }
2099
2100 /* This structure is always in little-endian */
2101 static void lustre_swab_lmv_mds_md_v1(struct lmv_mds_md_v1 *lmm1)
2102 {
2103         int i;
2104
2105         __swab32s(&lmm1->lmv_magic);
2106         __swab32s(&lmm1->lmv_stripe_count);
2107         __swab32s(&lmm1->lmv_master_mdt_index);
2108         __swab32s(&lmm1->lmv_hash_type);
2109         __swab32s(&lmm1->lmv_layout_version);
2110         for (i = 0; i < lmm1->lmv_stripe_count; i++)
2111                 lustre_swab_lu_fid(&lmm1->lmv_stripe_fids[i]);
2112 }
2113
2114 void lustre_swab_lmv_mds_md(union lmv_mds_md *lmm)
2115 {
2116         switch (lmm->lmv_magic) {
2117         case LMV_MAGIC_V1:
2118                 lustre_swab_lmv_mds_md_v1(&lmm->lmv_md_v1);
2119                 break;
2120         default:
2121                 break;
2122         }
2123 }
2124 EXPORT_SYMBOL(lustre_swab_lmv_mds_md);
2125
2126 void lustre_swab_lmv_user_md_objects(struct lmv_user_mds_data *lmd,
2127                                      int stripe_count)
2128 {
2129         int i;
2130
2131         for (i = 0; i < stripe_count; i++)
2132                 __swab32s(&(lmd[i].lum_mds));
2133 }
2134 EXPORT_SYMBOL(lustre_swab_lmv_user_md_objects);
2135
2136
2137 void lustre_swab_lmv_user_md(struct lmv_user_md *lum)
2138 {
2139         __u32 count;
2140
2141         if (lum->lum_magic == LMV_MAGIC_FOREIGN) {
2142                 __swab32s(&lum->lum_magic);
2143                 __swab32s(&((struct lmv_foreign_md *)lum)->lfm_length);
2144                 return;
2145         }
2146
2147         count = lum->lum_stripe_count;
2148         __swab32s(&lum->lum_magic);
2149         __swab32s(&lum->lum_stripe_count);
2150         __swab32s(&lum->lum_stripe_offset);
2151         __swab32s(&lum->lum_hash_type);
2152         __swab32s(&lum->lum_type);
2153         CLASSERT(offsetof(typeof(*lum), lum_padding1) != 0);
2154         switch (lum->lum_magic) {
2155         case LMV_USER_MAGIC_SPECIFIC:
2156                 count = lum->lum_stripe_count;
2157         case __swab32(LMV_USER_MAGIC_SPECIFIC):
2158                 lustre_swab_lmv_user_md_objects(lum->lum_objects, count);
2159                 break;
2160         default:
2161                 break;
2162         }
2163 }
2164 EXPORT_SYMBOL(lustre_swab_lmv_user_md);
2165
2166 static void lustre_print_v1v3(unsigned int lvl, struct lov_user_md *lum,
2167                               const char *msg)
2168 {
2169         CDEBUG(lvl, "%s lov_user_md %p:\n", msg, lum);
2170         CDEBUG(lvl, "\tlmm_magic: %#x\n", lum->lmm_magic);
2171         CDEBUG(lvl, "\tlmm_pattern: %#x\n", lum->lmm_pattern);
2172         CDEBUG(lvl, "\tlmm_object_id: %llu\n", lmm_oi_id(&lum->lmm_oi));
2173         CDEBUG(lvl, "\tlmm_object_gr: %llu\n", lmm_oi_seq(&lum->lmm_oi));
2174         CDEBUG(lvl, "\tlmm_stripe_size: %#x\n", lum->lmm_stripe_size);
2175         CDEBUG(lvl, "\tlmm_stripe_count: %#x\n", lum->lmm_stripe_count);
2176         CDEBUG(lvl, "\tlmm_stripe_offset/lmm_layout_gen: %#x\n",
2177                lum->lmm_stripe_offset);
2178         if (lum->lmm_magic == LOV_USER_MAGIC_V3) {
2179                 struct lov_user_md_v3 *v3 = (void *)lum;
2180                 CDEBUG(lvl, "\tlmm_pool_name: %s\n", v3->lmm_pool_name);
2181         }
2182         if (lum->lmm_magic == LOV_USER_MAGIC_SPECIFIC) {
2183                 struct lov_user_md_v3 *v3 = (void *)lum;
2184                 int i;
2185
2186                 if (v3->lmm_pool_name[0] != '\0')
2187                         CDEBUG(lvl, "\tlmm_pool_name: %s\n", v3->lmm_pool_name);
2188
2189                 CDEBUG(lvl, "\ttarget list:\n");
2190                 for (i = 0; i < v3->lmm_stripe_count; i++)
2191                         CDEBUG(lvl, "\t\t%u\n", v3->lmm_objects[i].l_ost_idx);
2192         }
2193 }
2194
2195 void lustre_print_user_md(unsigned int lvl, struct lov_user_md *lum,
2196                           const char *msg)
2197 {
2198         struct lov_comp_md_v1   *comp_v1;
2199         int                      i;
2200
2201         if (likely(!cfs_cdebug_show(lvl, DEBUG_SUBSYSTEM)))
2202                 return;
2203
2204         if (lum->lmm_magic == LOV_USER_MAGIC_V1 ||
2205             lum->lmm_magic == LOV_USER_MAGIC_V3) {
2206                 lustre_print_v1v3(lvl, lum, msg);
2207                 return;
2208         }
2209
2210         if (lum->lmm_magic != LOV_USER_MAGIC_COMP_V1) {
2211                 CDEBUG(lvl, "%s: bad magic: %x\n", msg, lum->lmm_magic);
2212                 return;
2213         }
2214
2215         comp_v1 = (struct lov_comp_md_v1 *)lum;
2216         CDEBUG(lvl, "%s: lov_comp_md_v1 %p:\n", msg, lum);
2217         CDEBUG(lvl, "\tlcm_magic: %#x\n", comp_v1->lcm_magic);
2218         CDEBUG(lvl, "\tlcm_size: %#x\n", comp_v1->lcm_size);
2219         CDEBUG(lvl, "\tlcm_layout_gen: %#x\n", comp_v1->lcm_layout_gen);
2220         CDEBUG(lvl, "\tlcm_flags: %#x\n", comp_v1->lcm_flags);
2221         CDEBUG(lvl, "\tlcm_entry_count: %#x\n\n", comp_v1->lcm_entry_count);
2222         CDEBUG(lvl, "\tlcm_mirror_count: %#x\n\n", comp_v1->lcm_mirror_count);
2223
2224         for (i = 0; i < comp_v1->lcm_entry_count; i++) {
2225                 struct lov_comp_md_entry_v1 *ent = &comp_v1->lcm_entries[i];
2226                 struct lov_user_md *v1;
2227
2228                 CDEBUG(lvl, "\tentry %d:\n", i);
2229                 CDEBUG(lvl, "\tlcme_id: %#x\n", ent->lcme_id);
2230                 CDEBUG(lvl, "\tlcme_flags: %#x\n", ent->lcme_flags);
2231                 if (ent->lcme_flags & LCME_FL_NOSYNC)
2232                         CDEBUG(lvl, "\tlcme_timestamp: %llu\n",
2233                                         ent->lcme_timestamp);
2234                 CDEBUG(lvl, "\tlcme_extent.e_start: %llu\n",
2235                        ent->lcme_extent.e_start);
2236                 CDEBUG(lvl, "\tlcme_extent.e_end: %llu\n",
2237                        ent->lcme_extent.e_end);
2238                 CDEBUG(lvl, "\tlcme_offset: %#x\n", ent->lcme_offset);
2239                 CDEBUG(lvl, "\tlcme_size: %#x\n\n", ent->lcme_size);
2240
2241                 v1 = (struct lov_user_md *)((char *)comp_v1 +
2242                                 comp_v1->lcm_entries[i].lcme_offset);
2243                 lustre_print_v1v3(lvl, v1, msg);
2244         }
2245 }
2246 EXPORT_SYMBOL(lustre_print_user_md);
2247
2248 static void lustre_swab_lmm_oi(struct ost_id *oi)
2249 {
2250         __swab64s(&oi->oi.oi_id);
2251         __swab64s(&oi->oi.oi_seq);
2252 }
2253
2254 static void lustre_swab_lov_user_md_common(struct lov_user_md_v1 *lum)
2255 {
2256         ENTRY;
2257         __swab32s(&lum->lmm_magic);
2258         __swab32s(&lum->lmm_pattern);
2259         lustre_swab_lmm_oi(&lum->lmm_oi);
2260         __swab32s(&lum->lmm_stripe_size);
2261         __swab16s(&lum->lmm_stripe_count);
2262         __swab16s(&lum->lmm_stripe_offset);
2263         EXIT;
2264 }
2265
2266 void lustre_swab_lov_user_md_v1(struct lov_user_md_v1 *lum)
2267 {
2268         ENTRY;
2269         CDEBUG(D_IOCTL, "swabbing lov_user_md v1\n");
2270         lustre_swab_lov_user_md_common(lum);
2271         EXIT;
2272 }
2273 EXPORT_SYMBOL(lustre_swab_lov_user_md_v1);
2274
2275 void lustre_swab_lov_user_md_v3(struct lov_user_md_v3 *lum)
2276 {
2277         ENTRY;
2278         CDEBUG(D_IOCTL, "swabbing lov_user_md v3\n");
2279         lustre_swab_lov_user_md_common((struct lov_user_md_v1 *)lum);
2280         /* lmm_pool_name nothing to do with char */
2281         EXIT;
2282 }
2283 EXPORT_SYMBOL(lustre_swab_lov_user_md_v3);
2284
2285 void lustre_swab_lov_comp_md_v1(struct lov_comp_md_v1 *lum)
2286 {
2287         struct lov_comp_md_entry_v1     *ent;
2288         struct lov_user_md_v1   *v1;
2289         struct lov_user_md_v3   *v3;
2290         int     i;
2291         bool    cpu_endian;
2292         __u32   off, size;
2293         __u16   ent_count, stripe_count;
2294         ENTRY;
2295
2296         cpu_endian = lum->lcm_magic == LOV_USER_MAGIC_COMP_V1;
2297         ent_count = lum->lcm_entry_count;
2298         if (!cpu_endian)
2299                 __swab16s(&ent_count);
2300
2301         CDEBUG(D_IOCTL, "swabbing lov_user_comp_md v1\n");
2302         __swab32s(&lum->lcm_magic);
2303         __swab32s(&lum->lcm_size);
2304         __swab32s(&lum->lcm_layout_gen);
2305         __swab16s(&lum->lcm_flags);
2306         __swab16s(&lum->lcm_entry_count);
2307         __swab16s(&lum->lcm_mirror_count);
2308         CLASSERT(offsetof(typeof(*lum), lcm_padding1) != 0);
2309         CLASSERT(offsetof(typeof(*lum), lcm_padding2) != 0);
2310
2311         for (i = 0; i < ent_count; i++) {
2312                 ent = &lum->lcm_entries[i];
2313                 off = ent->lcme_offset;
2314                 size = ent->lcme_size;
2315
2316                 if (!cpu_endian) {
2317                         __swab32s(&off);
2318                         __swab32s(&size);
2319                 }
2320                 __swab32s(&ent->lcme_id);
2321                 __swab32s(&ent->lcme_flags);
2322                 __swab64s(&ent->lcme_timestamp);
2323                 __swab64s(&ent->lcme_extent.e_start);
2324                 __swab64s(&ent->lcme_extent.e_end);
2325                 __swab32s(&ent->lcme_offset);
2326                 __swab32s(&ent->lcme_size);
2327                 __swab32s(&ent->lcme_layout_gen);
2328                 CLASSERT(offsetof(typeof(*ent), lcme_padding_1) != 0);
2329
2330                 v1 = (struct lov_user_md_v1 *)((char *)lum + off);
2331                 stripe_count = v1->lmm_stripe_count;
2332                 if (!cpu_endian)
2333                         __swab16s(&stripe_count);
2334
2335                 if (v1->lmm_magic == __swab32(LOV_USER_MAGIC_V1) ||
2336                     v1->lmm_magic == LOV_USER_MAGIC_V1) {
2337                         lustre_swab_lov_user_md_v1(v1);
2338                         if (size > sizeof(*v1))
2339                                 lustre_swab_lov_user_md_objects(v1->lmm_objects,
2340                                                                 stripe_count);
2341                 } else if (v1->lmm_magic == __swab32(LOV_USER_MAGIC_V3) ||
2342                            v1->lmm_magic == LOV_USER_MAGIC_V3 ||
2343                            v1->lmm_magic == __swab32(LOV_USER_MAGIC_SPECIFIC) ||
2344                            v1->lmm_magic == LOV_USER_MAGIC_SPECIFIC) {
2345                         v3 = (struct lov_user_md_v3 *)v1;
2346                         lustre_swab_lov_user_md_v3(v3);
2347                         if (size > sizeof(*v3))
2348                                 lustre_swab_lov_user_md_objects(v3->lmm_objects,
2349                                                                 stripe_count);
2350                 } else {
2351                         CERROR("Invalid magic %#x\n", v1->lmm_magic);
2352                 }
2353         }
2354 }
2355 EXPORT_SYMBOL(lustre_swab_lov_comp_md_v1);
2356
2357 void lustre_swab_lov_mds_md(struct lov_mds_md *lmm)
2358 {
2359         ENTRY;
2360         CDEBUG(D_IOCTL, "swabbing lov_mds_md\n");
2361         __swab32s(&lmm->lmm_magic);
2362         __swab32s(&lmm->lmm_pattern);
2363         lustre_swab_lmm_oi(&lmm->lmm_oi);
2364         __swab32s(&lmm->lmm_stripe_size);
2365         __swab16s(&lmm->lmm_stripe_count);
2366         __swab16s(&lmm->lmm_layout_gen);
2367         EXIT;
2368 }
2369 EXPORT_SYMBOL(lustre_swab_lov_mds_md);
2370
2371 void lustre_swab_lov_user_md_objects(struct lov_user_ost_data *lod,
2372                                      int stripe_count)
2373 {
2374         int i;
2375         ENTRY;
2376         for (i = 0; i < stripe_count; i++) {
2377                 lustre_swab_ost_id(&(lod[i].l_ost_oi));
2378                 __swab32s(&(lod[i].l_ost_gen));
2379                 __swab32s(&(lod[i].l_ost_idx));
2380         }
2381         EXIT;
2382 }
2383 EXPORT_SYMBOL(lustre_swab_lov_user_md_objects);
2384
2385 void lustre_swab_ldlm_res_id (struct ldlm_res_id *id)
2386 {
2387         int  i;
2388
2389         for (i = 0; i < RES_NAME_SIZE; i++)
2390                 __swab64s (&id->name[i]);
2391 }
2392
2393 void lustre_swab_ldlm_policy_data(union ldlm_wire_policy_data *d)
2394 {
2395         /* the lock data is a union and the first two fields are always an
2396          * extent so it's ok to process an LDLM_EXTENT and LDLM_FLOCK lock
2397          * data the same way. */
2398         __swab64s(&d->l_extent.start);
2399         __swab64s(&d->l_extent.end);
2400         __swab64s(&d->l_extent.gid);
2401         __swab64s(&d->l_flock.lfw_owner);
2402         __swab32s(&d->l_flock.lfw_pid);
2403 }
2404
2405 void lustre_swab_ldlm_intent (struct ldlm_intent *i)
2406 {
2407         __swab64s(&i->opc);
2408 }
2409
2410 void lustre_swab_ldlm_resource_desc(struct ldlm_resource_desc *r)
2411 {
2412         __swab32s(&r->lr_type);
2413         CLASSERT(offsetof(typeof(*r), lr_pad) != 0);
2414         lustre_swab_ldlm_res_id(&r->lr_name);
2415 }
2416
2417 void lustre_swab_ldlm_lock_desc (struct ldlm_lock_desc *l)
2418 {
2419         lustre_swab_ldlm_resource_desc (&l->l_resource);
2420         __swab32s (&l->l_req_mode);
2421         __swab32s (&l->l_granted_mode);
2422         lustre_swab_ldlm_policy_data (&l->l_policy_data);
2423 }
2424
2425 void lustre_swab_ldlm_request (struct ldlm_request *rq)
2426 {
2427         __swab32s (&rq->lock_flags);
2428         lustre_swab_ldlm_lock_desc (&rq->lock_desc);
2429         __swab32s (&rq->lock_count);
2430         /* lock_handle[] opaque */
2431 }
2432
2433 void lustre_swab_ldlm_reply (struct ldlm_reply *r)
2434 {
2435         __swab32s (&r->lock_flags);
2436         CLASSERT(offsetof(typeof(*r), lock_padding) != 0);
2437         lustre_swab_ldlm_lock_desc (&r->lock_desc);
2438         /* lock_handle opaque */
2439         __swab64s (&r->lock_policy_res1);
2440         __swab64s (&r->lock_policy_res2);
2441 }
2442
2443 void lustre_swab_quota_body(struct quota_body *b)
2444 {
2445         lustre_swab_lu_fid(&b->qb_fid);
2446         lustre_swab_lu_fid((struct lu_fid *)&b->qb_id);
2447         __swab32s(&b->qb_flags);
2448         __swab64s(&b->qb_count);
2449         __swab64s(&b->qb_usage);
2450         __swab64s(&b->qb_slv_ver);
2451 }
2452
2453 /* Dump functions */
2454 void dump_ioo(struct obd_ioobj *ioo)
2455 {
2456         CDEBUG(D_RPCTRACE,
2457                "obd_ioobj: ioo_oid="DOSTID", ioo_max_brw=%#x, "
2458                "ioo_bufct=%d\n", POSTID(&ioo->ioo_oid), ioo->ioo_max_brw,
2459                ioo->ioo_bufcnt);
2460 }
2461
2462 void dump_rniobuf(struct niobuf_remote *nb)
2463 {
2464         CDEBUG(D_RPCTRACE, "niobuf_remote: offset=%llu, len=%d, flags=%x\n",
2465                nb->rnb_offset, nb->rnb_len, nb->rnb_flags);
2466 }
2467
2468 void dump_obdo(struct obdo *oa)
2469 {
2470         u64 valid = oa->o_valid;
2471
2472         CDEBUG(D_RPCTRACE, "obdo: o_valid = %#llx\n", valid);
2473         if (valid & OBD_MD_FLID)
2474                 CDEBUG(D_RPCTRACE, "obdo: id = "DOSTID"\n", POSTID(&oa->o_oi));
2475         if (valid & OBD_MD_FLFID)
2476                 CDEBUG(D_RPCTRACE, "obdo: o_parent_seq = %#llx\n",
2477                        oa->o_parent_seq);
2478         if (valid & OBD_MD_FLSIZE)
2479                 CDEBUG(D_RPCTRACE, "obdo: o_size = %lld\n", oa->o_size);
2480         if (valid & OBD_MD_FLMTIME)
2481                 CDEBUG(D_RPCTRACE, "obdo: o_mtime = %lld\n", oa->o_mtime);
2482         if (valid & OBD_MD_FLATIME)
2483                 CDEBUG(D_RPCTRACE, "obdo: o_atime = %lld\n", oa->o_atime);
2484         if (valid & OBD_MD_FLCTIME)
2485                 CDEBUG(D_RPCTRACE, "obdo: o_ctime = %lld\n", oa->o_ctime);
2486         if (valid & OBD_MD_FLBLOCKS)   /* allocation of space */
2487                 CDEBUG(D_RPCTRACE, "obdo: o_blocks = %lld\n", oa->o_blocks);
2488         if (valid & OBD_MD_FLGRANT)
2489                 CDEBUG(D_RPCTRACE, "obdo: o_grant = %lld\n", oa->o_grant);
2490         if (valid & OBD_MD_FLBLKSZ)
2491                 CDEBUG(D_RPCTRACE, "obdo: o_blksize = %d\n", oa->o_blksize);
2492         if (valid & (OBD_MD_FLTYPE | OBD_MD_FLMODE))
2493                 CDEBUG(D_RPCTRACE, "obdo: o_mode = %o\n",
2494                        oa->o_mode & ((valid & OBD_MD_FLTYPE ?  S_IFMT : 0) |
2495                                      (valid & OBD_MD_FLMODE ? ~S_IFMT : 0)));
2496         if (valid & OBD_MD_FLUID)
2497                 CDEBUG(D_RPCTRACE, "obdo: o_uid = %u\n", oa->o_uid);
2498         if (valid & OBD_MD_FLUID)
2499                 CDEBUG(D_RPCTRACE, "obdo: o_uid_h = %u\n", oa->o_uid_h);
2500         if (valid & OBD_MD_FLGID)
2501                 CDEBUG(D_RPCTRACE, "obdo: o_gid = %u\n", oa->o_gid);
2502         if (valid & OBD_MD_FLGID)
2503                 CDEBUG(D_RPCTRACE, "obdo: o_gid_h = %u\n", oa->o_gid_h);
2504         if (valid & OBD_MD_FLFLAGS)
2505                 CDEBUG(D_RPCTRACE, "obdo: o_flags = %x\n", oa->o_flags);
2506         if (valid & OBD_MD_FLNLINK)
2507                 CDEBUG(D_RPCTRACE, "obdo: o_nlink = %u\n", oa->o_nlink);
2508         else if (valid & OBD_MD_FLCKSUM)
2509                 CDEBUG(D_RPCTRACE, "obdo: o_checksum (o_nlink) = %u\n",
2510                        oa->o_nlink);
2511         if (valid & OBD_MD_FLPARENT)
2512                 CDEBUG(D_RPCTRACE, "obdo: o_parent_oid = %x\n",
2513                        oa->o_parent_oid);
2514         if (valid & OBD_MD_FLFID) {
2515                 CDEBUG(D_RPCTRACE, "obdo: o_stripe_idx = %u\n",
2516                        oa->o_stripe_idx);
2517                 CDEBUG(D_RPCTRACE, "obdo: o_parent_ver = %x\n",
2518                        oa->o_parent_ver);
2519         }
2520         if (valid & OBD_MD_FLHANDLE)
2521                 CDEBUG(D_RPCTRACE, "obdo: o_handle = %lld\n",
2522                        oa->o_handle.cookie);
2523 }
2524
2525 void dump_ost_body(struct ost_body *ob)
2526 {
2527         dump_obdo(&ob->oa);
2528 }
2529
2530 void dump_rcs(__u32 *rc)
2531 {
2532         CDEBUG(D_RPCTRACE, "rmf_rcs: %d\n", *rc);
2533 }
2534
2535 static inline int req_ptlrpc_body_swabbed(struct ptlrpc_request *req)
2536 {
2537         LASSERT(req->rq_reqmsg);
2538
2539         switch (req->rq_reqmsg->lm_magic) {
2540         case LUSTRE_MSG_MAGIC_V2:
2541                 return lustre_req_swabbed(req, MSG_PTLRPC_BODY_OFF);
2542         default:
2543                 CERROR("bad lustre msg magic: %#08X\n",
2544                        req->rq_reqmsg->lm_magic);
2545         }
2546         return 0;
2547 }
2548
2549 static inline int rep_ptlrpc_body_swabbed(struct ptlrpc_request *req)
2550 {
2551         if (unlikely(!req->rq_repmsg))
2552                 return 0;
2553
2554         switch (req->rq_repmsg->lm_magic) {
2555         case LUSTRE_MSG_MAGIC_V2:
2556                 return lustre_rep_swabbed(req, MSG_PTLRPC_BODY_OFF);
2557         default:
2558                 /* uninitialized yet */
2559                 return 0;
2560         }
2561 }
2562
2563 void _debug_req(struct ptlrpc_request *req,
2564                 struct libcfs_debug_msg_data *msgdata, const char *fmt, ...)
2565 {
2566         bool req_ok = req->rq_reqmsg != NULL;
2567         bool rep_ok = false;
2568         lnet_nid_t nid = LNET_NID_ANY;
2569         struct va_format vaf;
2570         va_list args;
2571         int rep_flags = -1;
2572         int rep_status = -1;
2573
2574         spin_lock(&req->rq_early_free_lock);
2575         if (req->rq_repmsg)
2576                 rep_ok = true;
2577
2578         if (ptlrpc_req_need_swab(req)) {
2579                 req_ok = req_ok && req_ptlrpc_body_swabbed(req);
2580                 rep_ok = rep_ok && rep_ptlrpc_body_swabbed(req);
2581         }
2582
2583         if (rep_ok) {
2584                 rep_flags = lustre_msg_get_flags(req->rq_repmsg);
2585                 rep_status = lustre_msg_get_status(req->rq_repmsg);
2586         }
2587         spin_unlock(&req->rq_early_free_lock);
2588
2589         if (req->rq_import && req->rq_import->imp_connection)
2590                 nid = req->rq_import->imp_connection->c_peer.nid;
2591         else if (req->rq_export && req->rq_export->exp_connection)
2592                 nid = req->rq_export->exp_connection->c_peer.nid;
2593
2594         va_start(args, fmt);
2595         vaf.fmt = fmt;
2596         vaf.va = &args;
2597         libcfs_debug_msg(msgdata,
2598                          "%pV req@%p x%llu/t%lld(%lld) o%d->%s@%s:%d/%d lens %d/%d e %d to %lld dl %lld ref %d fl " REQ_FLAGS_FMT "/%x/%x rc %d/%d\n",
2599                          &vaf,
2600                          req, req->rq_xid, req->rq_transno,
2601                          req_ok ? lustre_msg_get_transno(req->rq_reqmsg) : 0,
2602                          req_ok ? lustre_msg_get_opc(req->rq_reqmsg) : -1,
2603                          req->rq_import ?
2604                          req->rq_import->imp_obd->obd_name :
2605                          req->rq_export ?
2606                          req->rq_export->exp_client_uuid.uuid :
2607                          "<?>",
2608                          libcfs_nid2str(nid),
2609                          req->rq_request_portal, req->rq_reply_portal,
2610                          req->rq_reqlen, req->rq_replen,
2611                          req->rq_early_count, (s64)req->rq_timedout,
2612                          (s64)req->rq_deadline,
2613                          atomic_read(&req->rq_refcount),
2614                          DEBUG_REQ_FLAGS(req),
2615                          req_ok ? lustre_msg_get_flags(req->rq_reqmsg) : -1,
2616                          rep_flags, req->rq_status, rep_status);
2617         va_end(args);
2618 }
2619 EXPORT_SYMBOL(_debug_req);
2620
2621 void lustre_swab_lustre_capa(struct lustre_capa *c)
2622 {
2623         lustre_swab_lu_fid(&c->lc_fid);
2624         __swab64s (&c->lc_opc);
2625         __swab64s (&c->lc_uid);
2626         __swab64s (&c->lc_gid);
2627         __swab32s (&c->lc_flags);
2628         __swab32s (&c->lc_keyid);
2629         __swab32s (&c->lc_timeout);
2630         __swab32s (&c->lc_expiry);
2631 }
2632
2633 void lustre_swab_lustre_capa_key(struct lustre_capa_key *k)
2634 {
2635         __swab64s (&k->lk_seq);
2636         __swab32s (&k->lk_keyid);
2637         CLASSERT(offsetof(typeof(*k), lk_padding) != 0);
2638 }
2639
2640 void lustre_swab_hsm_user_state(struct hsm_user_state *state)
2641 {
2642         __swab32s(&state->hus_states);
2643         __swab32s(&state->hus_archive_id);
2644 }
2645
2646 void lustre_swab_hsm_state_set(struct hsm_state_set *hss)
2647 {
2648         __swab32s(&hss->hss_valid);
2649         __swab64s(&hss->hss_setmask);
2650         __swab64s(&hss->hss_clearmask);
2651         __swab32s(&hss->hss_archive_id);
2652 }
2653
2654 static void lustre_swab_hsm_extent(struct hsm_extent *extent)
2655 {
2656         __swab64s(&extent->offset);
2657         __swab64s(&extent->length);
2658 }
2659
2660 void lustre_swab_hsm_current_action(struct hsm_current_action *action)
2661 {
2662         __swab32s(&action->hca_state);
2663         __swab32s(&action->hca_action);
2664         lustre_swab_hsm_extent(&action->hca_location);
2665 }
2666
2667 void lustre_swab_hsm_user_item(struct hsm_user_item *hui)
2668 {
2669         lustre_swab_lu_fid(&hui->hui_fid);
2670         lustre_swab_hsm_extent(&hui->hui_extent);
2671 }
2672
2673 void lustre_swab_lu_extent(struct lu_extent *le)
2674 {
2675         __swab64s(&le->e_start);
2676         __swab64s(&le->e_end);
2677 }
2678
2679 void lustre_swab_layout_intent(struct layout_intent *li)
2680 {
2681         __swab32s(&li->li_opc);
2682         __swab32s(&li->li_flags);
2683         lustre_swab_lu_extent(&li->li_extent);
2684 }
2685
2686 void lustre_swab_hsm_progress_kernel(struct hsm_progress_kernel *hpk)
2687 {
2688         lustre_swab_lu_fid(&hpk->hpk_fid);
2689         __swab64s(&hpk->hpk_cookie);
2690         __swab64s(&hpk->hpk_extent.offset);
2691         __swab64s(&hpk->hpk_extent.length);
2692         __swab16s(&hpk->hpk_flags);
2693         __swab16s(&hpk->hpk_errval);
2694 }
2695
2696 void lustre_swab_hsm_request(struct hsm_request *hr)
2697 {
2698         __swab32s(&hr->hr_action);
2699         __swab32s(&hr->hr_archive_id);
2700         __swab64s(&hr->hr_flags);
2701         __swab32s(&hr->hr_itemcount);
2702         __swab32s(&hr->hr_data_len);
2703 }
2704
2705 void lustre_swab_object_update(struct object_update *ou)
2706 {
2707         struct object_update_param *param;
2708         size_t  i;
2709
2710         __swab16s(&ou->ou_type);
2711         __swab16s(&ou->ou_params_count);
2712         __swab32s(&ou->ou_result_size);
2713         __swab32s(&ou->ou_flags);
2714         __swab32s(&ou->ou_padding1);
2715         __swab64s(&ou->ou_batchid);
2716         lustre_swab_lu_fid(&ou->ou_fid);
2717         param = &ou->ou_params[0];
2718         for (i = 0; i < ou->ou_params_count; i++) {
2719                 __swab16s(&param->oup_len);
2720                 __swab16s(&param->oup_padding);
2721                 __swab32s(&param->oup_padding2);
2722                 param = (struct object_update_param *)((char *)param +
2723                          object_update_param_size(param));
2724         }
2725 }
2726
2727 void lustre_swab_object_update_request(struct object_update_request *our)
2728 {
2729         size_t i;
2730         __swab32s(&our->ourq_magic);
2731         __swab16s(&our->ourq_count);
2732         __swab16s(&our->ourq_padding);
2733         for (i = 0; i < our->ourq_count; i++) {
2734                 struct object_update *ou;
2735
2736                 ou = object_update_request_get(our, i, NULL);
2737                 if (ou == NULL)
2738                         return;
2739                 lustre_swab_object_update(ou);
2740         }
2741 }
2742
2743 void lustre_swab_object_update_result(struct object_update_result *our)
2744 {
2745         __swab32s(&our->our_rc);
2746         __swab16s(&our->our_datalen);
2747         __swab16s(&our->our_padding);
2748 }
2749
2750 void lustre_swab_object_update_reply(struct object_update_reply *our)
2751 {
2752         size_t i;
2753
2754         __swab32s(&our->ourp_magic);
2755         __swab16s(&our->ourp_count);
2756         __swab16s(&our->ourp_padding);
2757         for (i = 0; i < our->ourp_count; i++) {
2758                 struct object_update_result *ourp;
2759
2760                 __swab16s(&our->ourp_lens[i]);
2761                 ourp = object_update_result_get(our, i, NULL);
2762                 if (ourp == NULL)
2763                         return;
2764                 lustre_swab_object_update_result(ourp);
2765         }
2766 }
2767
2768 void lustre_swab_out_update_header(struct out_update_header *ouh)
2769 {
2770         __swab32s(&ouh->ouh_magic);
2771         __swab32s(&ouh->ouh_count);
2772         __swab32s(&ouh->ouh_inline_length);
2773         __swab32s(&ouh->ouh_reply_size);
2774 }
2775 EXPORT_SYMBOL(lustre_swab_out_update_header);
2776
2777 void lustre_swab_out_update_buffer(struct out_update_buffer *oub)
2778 {
2779         __swab32s(&oub->oub_size);
2780         __swab32s(&oub->oub_padding);
2781 }
2782 EXPORT_SYMBOL(lustre_swab_out_update_buffer);
2783
2784 void lustre_swab_swap_layouts(struct mdc_swap_layouts *msl)
2785 {
2786         __swab64s(&msl->msl_flags);
2787 }
2788
2789 void lustre_swab_close_data(struct close_data *cd)
2790 {
2791         lustre_swab_lu_fid(&cd->cd_fid);
2792         __swab64s(&cd->cd_data_version);
2793 }
2794
2795 void lustre_swab_close_data_resync_done(struct close_data_resync_done *resync)
2796 {
2797         int i;
2798
2799         __swab32s(&resync->resync_count);
2800         /* after swab, resync_count must in CPU endian */
2801         if (resync->resync_count <= INLINE_RESYNC_ARRAY_SIZE) {
2802                 for (i = 0; i < resync->resync_count; i++)
2803                         __swab32s(&resync->resync_ids_inline[i]);
2804         }
2805 }
2806 EXPORT_SYMBOL(lustre_swab_close_data_resync_done);
2807
2808 void lustre_swab_lfsck_request(struct lfsck_request *lr)
2809 {
2810         __swab32s(&lr->lr_event);
2811         __swab32s(&lr->lr_index);
2812         __swab32s(&lr->lr_flags);
2813         __swab32s(&lr->lr_valid);
2814         __swab32s(&lr->lr_speed);
2815         __swab16s(&lr->lr_version);
2816         __swab16s(&lr->lr_active);
2817         __swab16s(&lr->lr_param);
2818         __swab16s(&lr->lr_async_windows);
2819         __swab32s(&lr->lr_flags);
2820         lustre_swab_lu_fid(&lr->lr_fid);
2821         lustre_swab_lu_fid(&lr->lr_fid2);
2822         __swab32s(&lr->lr_comp_id);
2823         CLASSERT(offsetof(typeof(*lr), lr_padding_0) != 0);
2824         CLASSERT(offsetof(typeof(*lr), lr_padding_1) != 0);
2825         CLASSERT(offsetof(typeof(*lr), lr_padding_2) != 0);
2826         CLASSERT(offsetof(typeof(*lr), lr_padding_3) != 0);
2827 }
2828
2829 void lustre_swab_lfsck_reply(struct lfsck_reply *lr)
2830 {
2831         __swab32s(&lr->lr_status);
2832         CLASSERT(offsetof(typeof(*lr), lr_padding_1) != 0);
2833         __swab64s(&lr->lr_repaired);
2834 }
2835
2836 static void lustre_swab_orphan_rec(struct lu_orphan_rec *rec)
2837 {
2838         lustre_swab_lu_fid(&rec->lor_fid);
2839         __swab32s(&rec->lor_uid);
2840         __swab32s(&rec->lor_gid);
2841 }
2842
2843 void lustre_swab_orphan_ent(struct lu_orphan_ent *ent)
2844 {
2845         lustre_swab_lu_fid(&ent->loe_key);
2846         lustre_swab_orphan_rec(&ent->loe_rec);
2847 }
2848 EXPORT_SYMBOL(lustre_swab_orphan_ent);
2849
2850 void lustre_swab_orphan_ent_v2(struct lu_orphan_ent_v2 *ent)
2851 {
2852         lustre_swab_lu_fid(&ent->loe_key);
2853         lustre_swab_orphan_rec(&ent->loe_rec.lor_rec);
2854         lustre_swab_ost_layout(&ent->loe_rec.lor_layout);
2855         CLASSERT(offsetof(typeof(ent->loe_rec), lor_padding) != 0);
2856 }
2857 EXPORT_SYMBOL(lustre_swab_orphan_ent_v2);
2858
2859 void lustre_swab_orphan_ent_v3(struct lu_orphan_ent_v3 *ent)
2860 {
2861         lustre_swab_lu_fid(&ent->loe_key);
2862         lustre_swab_orphan_rec(&ent->loe_rec.lor_rec);
2863         lustre_swab_ost_layout(&ent->loe_rec.lor_layout);
2864         __swab32s(&ent->loe_rec.lor_layout_version);
2865         __swab32s(&ent->loe_rec.lor_range);
2866         CLASSERT(offsetof(typeof(ent->loe_rec), lor_padding_1) != 0);
2867         CLASSERT(offsetof(typeof(ent->loe_rec), lor_padding_2) != 0);
2868 }
2869 EXPORT_SYMBOL(lustre_swab_orphan_ent_v3);
2870
2871 void lustre_swab_ladvise(struct lu_ladvise *ladvise)
2872 {
2873         __swab16s(&ladvise->lla_advice);
2874         __swab16s(&ladvise->lla_value1);
2875         __swab32s(&ladvise->lla_value2);
2876         __swab64s(&ladvise->lla_start);
2877         __swab64s(&ladvise->lla_end);
2878         __swab32s(&ladvise->lla_value3);
2879         __swab32s(&ladvise->lla_value4);
2880 }
2881 EXPORT_SYMBOL(lustre_swab_ladvise);
2882
2883 void lustre_swab_ladvise_hdr(struct ladvise_hdr *ladvise_hdr)
2884 {
2885         __swab32s(&ladvise_hdr->lah_magic);
2886         __swab32s(&ladvise_hdr->lah_count);
2887         __swab64s(&ladvise_hdr->lah_flags);
2888         __swab32s(&ladvise_hdr->lah_value1);
2889         __swab32s(&ladvise_hdr->lah_value2);
2890         __swab64s(&ladvise_hdr->lah_value3);
2891 }
2892 EXPORT_SYMBOL(lustre_swab_ladvise_hdr);