[LU-9128] remove OBD_OCD_VERSION-ed out code

• Status: Resolved
• Project: Lustre
• Type: Bug
• Priority: Minor
• Reporter: John Hammond
• Assignee: WC Triage
• Resolution: Fixed
• Severity: 3

Description

There's a fair amount of OBD_OCD_VERSION-ed out code in lustre/utils/ and elsewhere which can be removed or made unconditional:

x:lustre-release# git grep 'OBD_OCD_VERSION(2, [0-9],'
lustre/llite/dir.c:#if LUSTRE_VERSION_CODE < OBD_OCD_VERSION(2, 9, 50, 0)
lustre/ofd/ofd_dev.c:#if LUSTRE_VERSION_CODE < OBD_OCD_VERSION(2, 8, 53, 0)
lustre/utils/lfs.c:#if LUSTRE_VERSION_CODE < OBD_OCD_VERSION(2, 9, 53, 0)
lustre/utils/lfs.c:#if LUSTRE_VERSION_CODE < OBD_OCD_VERSION(2, 9, 53, 0)
lustre/utils/lfs.c:#if LUSTRE_VERSION_CODE < OBD_OCD_VERSION(2, 9, 53, 0)
lustre/utils/lfs.c:#if LUSTRE_VERSION_CODE >= OBD_OCD_VERSION(2, 6, 53, 0)
lustre/utils/lfs.c:#if LUSTRE_VERSION_CODE >= OBD_OCD_VERSION(2, 6, 53, 0)
lustre/utils/lfs.c:#if LUSTRE_VERSION_CODE < OBD_OCD_VERSION(2, 9, 53, 0)
lustre/utils/lfs.c:#if LUSTRE_VERSION_CODE >= OBD_OCD_VERSION(2, 6, 53, 0)
lustre/utils/lfs.c:#endif /* LUSTRE_VERSION_CODE < OBD_OCD_VERSION(2, 9, 53, 0) */
lustre/utils/lfs.c:#if LUSTRE_VERSION_CODE < OBD_OCD_VERSION(2, 9, 53, 0)
lustre/utils/lfs.c:#if LUSTRE_VERSION_CODE < OBD_OCD_VERSION(2, 9, 53, 0)
lustre/utils/lfs.c:#if LUSTRE_VERSION_CODE < OBD_OCD _VERSION(2, 9, 53, 0)
lustre/utils/lfs.c:#if LUSTRE_VERSION_CODE < OBD_OCD_VERSION(2, 9, 53, 0)
lustre/utils/lfs.c:#if LUSTRE_VERSION_CODE >= OBD_OCD_VERSION(2, 6, 53, 0)
lustre/utils/lfs.c:#if LUSTRE_VERSION_CODE < OBD_OCD_VERSION(2, 9, 53, 0)
lustre/utils/lfs.c:#if LUSTRE_VERSION_CODE >= OBD_OCD_VERSION(2, 6, 53, 0)
lustre/utils/lfs.c:#endif /* LUSTRE_VERSION_CODE < OBD_OCD_VERSION(2, 9, 53, 0) */
lustre/utils/lfs.c:#if LUSTRE_VERSION_CODE < OBD_OCD_VERSION(2, 9, 53, 0)
lustre/utils/lfs.c:#if LUSTRE_VERSION_CODE >= OBD_OCD_VERSION(2, 6, 53, 0)
lustre/utils/liblustreapi.c:#if LUSTRE_VERSION_CODE > OBD_OCD_VERSION(2, 9, 53, 0)
lustre/utils/liblustreapi_util.c:#if LUSTRE_VERSION_CODE > OBD_OCD_VERSION(2, 8, 53, 0)

Issue Links

• is related to: LU-9123 sanity test 27D fails with 'llapi_lay...
• is related to: LU-9125 replay-single test_68: @@@@@@ FAIL: 2...
• is related to: LU-6401 Untangle lustre userland and kernel h...
• is related to: LU-6202 clean up ioctl handling

Comments

[James A Simmons]

I was pondering if lustre_ver.h really needs to be exposed to user land the other day. It can't be guaranteed that the tools will be running against a lustre kernel version it was built again.

[John Hammond]

> It can't be guaranteed that the tools will be running against a lustre kernel version it was built again.

I agree but when it comes to utilities the version is (mostly) not being used in that way (i.e. to manage ABI compatibility). Instead it's being used to manage deprecation and removal of the utility features, options, etc.

[Joseph Gmitter (Inactive)]

Hi Steve,

Can you please have a look at this one?

Thanks.
Joe

[Steve Guminski (Inactive)]

I'll add this to my queue.

[James Nunez (Inactive)]

As of today, Lustre 2.10.58+ still has the following version checks for version 2.x with x <=11:

lustre/ofd/ofd_dev.c:#if LUSTRE_VERSION_CODE < OBD_OCD_VERSION(2, 8, 53, 0)

1779 out_nolock:
1780         if (rc == 0) {
1781 #if LUSTRE_VERSION_CODE < OBD_OCD_VERSION(2, 8, 53, 0)
1782                 struct ofd_thread_info  *info = ofd_info(tsi->tsi_env);
1783                 struct lu_fid           *fid = &info->fti_fid;
1784 
1785                 /* For compatible purpose, it needs to convert back to
1786                  * OST ID before put it on wire. */
1787                 *fid = rep_oa->o_oi.oi_fid;
1788                 fid_to_ostid(fid, &rep_oa->o_oi);
1789 #endif
1790                 rep_oa->o_valid |= OBD_MD_FLID | OBD_MD_FLGROUP;
1791         }

lustre/utils/liblustreapi_util.c:#if LUSTRE_VERSION_CODE > OBD_OCD_VERSION(2, 8, 53, 0)

 160 int llapi_get_version(char *buffer, int buffer_size, char **version)
 161 {
 162         int rc;
 163 #if LUSTRE_VERSION_CODE > OBD_OCD_VERSION(2, 8, 53, 0)
 164         static bool printed;
 165         if (!printed) {
 166                 fprintf(stderr,
 167                         "%s deprecated, use llapi_get_version_string()\n",
 168                         __func__);
 169                 printed = true;
 170         }
 171 #endif
 172 

lustre/llite/dir.c:#if LUSTRE_VERSION_CODE < OBD_OCD_VERSION(2, 9, 50, 0)

1260 
1261 #if LUSTRE_VERSION_CODE < OBD_OCD_VERSION(2, 9, 50, 0)
1262                 mode = data->ioc_type != 0 ? data->ioc_type : S_IRWXUGO;
1263 #else
1264                 mode = data->ioc_type;
1265 #endif
1266                 rc = ll_dir_setdirstripe(dentry, lum, lumlen, filename, mode);

lustre/utils/liblustreapi.c:#if LUSTRE_VERSION_CODE > OBD_OCD_VERSION(2, 9, 59, 0)

4395 int llapi_mv(char *path, struct find_param *param)
4396 {
4397 #if LUSTRE_VERSION_CODE > OBD_OCD_VERSION(2, 9, 59, 0)
4398         static bool printed;
4399 
4400         if (!printed) {
4401                 llapi_error(LLAPI_MSG_ERROR, -ESTALE,
4402                             "llapi_mv() is deprecated, use llapi_migrate_mdt()\n");
4403                 printed = true;
4404         }
4405 #endif
4406         return llapi_migrate_mdt(path, param);
4407 }

lustre/utils/mount_lustre.c:#if LUSTRE_VERSION_CODE < OBD_OCD_VERSION(2, 10, 53, 0)

  61 #if LUSTRE_VERSION_CODE < OBD_OCD_VERSION(2, 10, 53, 0)
  62 /*
  63  * LU-1783
  64  * We only #include a kernel level include file here because
  65  * important MS_ flag #defines are missing from the SLES version
  66  * of sys/mount.h
  67  * In the future if SLES updates sys/mount.h to have a more complete
  68  * set of flag #defines we should stop including linux/fs.h
  69  */
  70 #if !defined(MS_RDONLY)
  71 #include <linux/fs.h>
  72 #endif
  73 #endif

lustre/include/uapi/linux/lustre/lustre_idl.h:#if LUSTRE_VERSION_CODE < OBD_OCD_VERSION(2, 11, 56, 0)

2106 #if LUSTRE_VERSION_CODE < OBD_OCD_VERSION(2, 11, 56, 0)
2107 /* Since lustre 2.8, this flag will not be needed, instead this DEAD
2108  * and orphan flags will be stored in LMA (see LMAI_ORPHAN)
2109  * Keep this flag just for LFSCK, because it still might meet such
2110  * flag when it checks the old FS */
2111 #define LMV_HASH_FLAG_DEAD      0x40000000
2112 #endif

[James Nunez (Inactive)]

Update: As of November 1, 2019, here are all the conditional code based on Lustre version up to 2.14.50:

lustre/ofd/ofd_dev.c:#if LUSTRE_VERSION_CODE < OBD_OCD_VERSION(2, 8, 53, 0)

1726 #if LUSTRE_VERSION_CODE < OBD_OCD_VERSION(2, 8, 53, 0)
1727                 struct ofd_thread_info  *info = ofd_info(tsi->tsi_env);
1728                 struct lu_fid           *fid = &info->fti_fid;
1729 
1730                 /* For compatible purpose, it needs to convert back to
1731                  * OST ID before put it on wire. */
1732                 *fid = rep_oa->o_oi.oi_fid;
1733                 fid_to_ostid(fid, &rep_oa->o_oi);
1734 #endif

lustre/utils/liblustreapi_util.c:#if LUSTRE_VERSION_CODE > OBD_OCD_VERSION(2, 8, 53, 0)

 164 #if LUSTRE_VERSION_CODE > OBD_OCD_VERSION(2, 8, 53, 0)
 165         static bool printed;
 166         if (!printed) {
 167                 fprintf(stderr,
 168                         "%s deprecated, use llapi_get_version_string()\n",
 169                         __func__);
 170                 printed = true;
 171         }
 172 #endif

lustre/llite/dir.c:#if LUSTRE_VERSION_CODE < OBD_OCD_VERSION(2, 9, 50, 0)

1427 #if LUSTRE_VERSION_CODE < OBD_OCD_VERSION(2, 9, 50, 0)
1428                 mode = data->ioc_type != 0 ? data->ioc_type : S_IRWXUGO;
1429 #else
1430                 mode = data->ioc_type;
1431 #endif

lustre/utils/liblustreapi.c:#if LUSTRE_VERSION_CODE > OBD_OCD_VERSION(2, 9, 59, 0)

5076 int llapi_mv(char *path, struct find_param *param)
5077 {
5078 #if LUSTRE_VERSION_CODE > OBD_OCD_VERSION(2, 9, 59, 0)
5079         static bool printed;
5080 
5081         if (!printed) {
5082                 llapi_error(LLAPI_MSG_ERROR, -ESTALE,
5083                             "llapi_mv() is deprecated, use llapi_migrate_mdt()\n");
5084                 printed = true;
5085         }
5086 #endif
5087         return llapi_migrate_mdt(path, param);
5088 }

lustre/utils/mount_lustre.c:#if LUSTRE_VERSION_CODE < OBD_OCD_VERSION(2, 10, 53, 0)

  61 #if LUSTRE_VERSION_CODE < OBD_OCD_VERSION(2, 10, 53, 0)
  62 /*
  63  * LU-1783
  64  * We only #include a kernel level include file here because
  65  * important MS_ flag #defines are missing from the SLES version
  66  * of sys/mount.h
  67  * In the future if SLES updates sys/mount.h to have a more complete
  68  * set of flag #defines we should stop including linux/fs.h
  69  */
  70 #if !defined(MS_RDONLY)
  71 #include <linux/fs.h>
  72 #endif
  73 #endif

lustre/llite/llite_lib.c:#if LUSTRE_VERSION_CODE < OBD_OCD_VERSION(2, 12, 50, 0)

 464 #if LUSTRE_VERSION_CODE < OBD_OCD_VERSION(2, 12, 50, 0)
 465         data->ocd_connect_flags |= OBD_CONNECT_LOCKAHEAD_OLD;
 466 #endif

lustre/llite/dir.c:#if LUSTRE_VERSION_CODE < OBD_OCD_VERSION(2, 13, 53, 0)

 414 #if LUSTRE_VERSION_CODE < OBD_OCD_VERSION(2, 13, 53, 0)
 415 static int ll_send_mgc_param(struct obd_export *mgc, char *string)
 416 {
 417         struct mgs_send_param *msp;
 418         int rc = 0;
 419 
 420         OBD_ALLOC_PTR(msp);
 421         if (!msp)
 422                 return -ENOMEM;
 423 
 424         strlcpy(msp->mgs_param, string, sizeof(msp->mgs_param));
 425         rc = obd_set_info_async(NULL, mgc, sizeof(KEY_SET_INFO), KEY_SET_INFO,
 426                                 sizeof(struct mgs_send_param), msp, NULL);
 427         if (rc)
 428                 CERROR("Failed to set parameter: %d\n", rc);
 429         OBD_FREE_PTR(msp);
 430 
 431         return rc;
 432 }
 433 #endif

lustre/llite/dir.c:#if LUSTRE_VERSION_CODE < OBD_OCD_VERSION(2, 13, 53, 0)

 561 #if LUSTRE_VERSION_CODE < OBD_OCD_VERSION(2, 13, 53, 0)
 562         struct lustre_sb_info *lsi = s2lsi(inode->i_sb);
 563         struct obd_device *mgc = lsi->lsi_mgc;
 564 #endif

lustre/llite/dir.c:#if LUSTRE_VERSION_CODE < OBD_OCD_VERSION(2, 13, 53, 0)

 626 #if LUSTRE_VERSION_CODE < OBD_OCD_VERSION(2, 13, 53, 0)
 627         /*
 628          * 2.9 server has stored filesystem default stripe in ROOT xattr,
 629          * and it's stored into system config for backward compatibility.
 630          *
 631          * In the following we use the fact that LOV_USER_MAGIC_V1 and
 632          * LOV_USER_MAGIC_V3 have the same initial fields so we do not
 633          * need the make the distiction between the 2 versions
 634          */
 635         if (set_default && mgc->u.cli.cl_mgc_mgsexp &&
 636             (lump == NULL ||
 637              le32_to_cpu(lump->lmm_magic) == LOV_USER_MAGIC_V1 ||
 638              le32_to_cpu(lump->lmm_magic) == LOV_USER_MAGIC_V3)) {
 639                 char *param = NULL;
 640                 char *buf;
 641 
 642                 OBD_ALLOC(param, MGS_PARAM_MAXLEN);
 643                 if (param == NULL)
 644                         GOTO(end, rc = -ENOMEM);
 645 
 646                 buf = param;
 647                 /* Get fsname and assume devname to be -MDT0000. */
 648                 snprintf(buf, MGS_PARAM_MAXLEN, "%s-MDT0000.lov",
 649                          sbi->ll_fsname);
 650                 buf += strlen(buf);
 651 
 652                 /* Set root stripesize */
 653                 snprintf(buf, MGS_PARAM_MAXLEN, ".stripesize=%u",
 654                          lump ? le32_to_cpu(lump->lmm_stripe_size) : 0);
 655                 rc = ll_send_mgc_param(mgc->u.cli.cl_mgc_mgsexp, param);
 656                 if (rc)
 657                         GOTO(end, rc);
 658 
 659                 /* Set root stripecount */
 660                 snprintf(buf, MGS_PARAM_MAXLEN, ".stripecount=%hd",
 661                          lump ? le16_to_cpu(lump->lmm_stripe_count) : 0);
 662                 rc = ll_send_mgc_param(mgc->u.cli.cl_mgc_mgsexp, param);
 663                 if (rc)
 664                         GOTO(end, rc);
 665 
 666                 /* Set root stripeoffset */
 667                 snprintf(buf, MGS_PARAM_MAXLEN, ".stripeoffset=%hd",
 668                          lump ? le16_to_cpu(lump->lmm_stripe_offset) :
 669                                 (typeof(lump->lmm_stripe_offset))(-1));
 670                 rc = ll_send_mgc_param(mgc->u.cli.cl_mgc_mgsexp, param);
 671 
 672 end:
 673                 if (param != NULL)
 674                         OBD_FREE(param, MGS_PARAM_MAXLEN);
 675         }
 676 #endif

lustre/mgc/mgc_request.c:#if LUSTRE_VERSION_CODE < OBD_OCD_VERSION(2, 13, 53, 0)

1067 #if LUSTRE_VERSION_CODE < OBD_OCD_VERSION(2, 13, 53, 0)
1068 /* Send parameter to MGS*/
1069 static int mgc_set_mgs_param(struct obd_export *exp,
1070                              struct mgs_send_param *msp)
1071 {
1072         struct ptlrpc_request *req;
1073         struct mgs_send_param *req_msp, *rep_msp;
1074         int rc;
1075         ENTRY;
1076 
1077         req = ptlrpc_request_alloc_pack(class_exp2cliimp(exp),
1078                                         &RQF_MGS_SET_INFO, LUSTRE_MGS_VERSION,
1079                                         MGS_SET_INFO);
1080         if (!req)
1081                 RETURN(-ENOMEM);
1082 
1083         req_msp = req_capsule_client_get(&req->rq_pill, &RMF_MGS_SEND_PARAM);
1084         if (!req_msp) {
1085                 ptlrpc_req_finished(req);
1086                 RETURN(-ENOMEM);
1087         }
1088 
1089         memcpy(req_msp, msp, sizeof(*req_msp));
1090         ptlrpc_request_set_replen(req);
1091 
1092         /* Limit how long we will wait for the enqueue to complete */
1093         req->rq_delay_limit = MGC_SEND_PARAM_LIMIT;
1094         rc = ptlrpc_queue_wait(req);
1095         if (!rc) {
1096                 rep_msp = req_capsule_server_get(&req->rq_pill, &RMF_MGS_SEND_PARAM);
1097                 memcpy(msp, rep_msp, sizeof(*rep_msp));
1098         }
1099 
1100         ptlrpc_req_finished(req);
1101 
1102         RETURN(rc);
1103 }
1104 #endif

lustre/mgc/mgc_request.c:#if LUSTRE_VERSION_CODE < OBD_OCD_VERSION(2, 13, 53, 0)

1280 #if LUSTRE_VERSION_CODE < OBD_OCD_VERSION(2, 13, 53, 0)
1281         if (KEY_IS(KEY_SET_INFO)) {
1282                 struct mgs_send_param *msp;
1283 
1284                 msp = (struct mgs_send_param *)val;
1285                 rc =  mgc_set_mgs_param(exp, msp);
1286                 RETURN(rc);
1287         }
1288 #endif

lustre/mgs/mgs_handler.c:#if LUSTRE_VERSION_CODE < OBD_OCD_VERSION(2, 13, 53, 0)

  99 #if LUSTRE_VERSION_CODE < OBD_OCD_VERSION(2, 13, 53, 0)
 100 static int mgs_set_info(struct tgt_session_info *tsi)
 101 {
 102         struct mgs_thread_info  *mgi;
 103         struct mgs_send_param   *msp, *rep_msp;
 104         struct lustre_cfg       *lcfg;
 105         size_t                   param_len;
 106         char                    *s;
 107         int                      rc;
 108 
 109         ENTRY;
 110 
 111         mgi = mgs_env_info(tsi->tsi_env);
 112         if (IS_ERR(mgi))
 113                 RETURN(err_serious(PTR_ERR(mgi)));
 114 
 115         msp = req_capsule_client_get(tsi->tsi_pill, &RMF_MGS_SEND_PARAM);
 116         if (msp == NULL)
 117                 RETURN(err_serious(-EFAULT));
 118 
 119         param_len = strnlen(msp->mgs_param, sizeof(msp->mgs_param));
 120         if (param_len == 0 || param_len == sizeof(msp->mgs_param))
 121                 RETURN(-EINVAL);
 122 
 123         /* We only allow '*.lov.stripe{size,count,offset}=*' from an RPC. */
 124         s = strchr(msp->mgs_param, '.');
 125         if (s == NULL)
 126                 RETURN(-EINVAL);
 127 
 128         if (!str_starts_with(s + 1, "lov.stripesize=") &&
 129             !str_starts_with(s + 1, "lov.stripecount=") &&
 130             !str_starts_with(s + 1, "lov.stripeoffset="))
 131                 RETURN(-EINVAL);
 132 
 133         /* Construct lustre_cfg structure to pass to function mgs_set_param */
 134         lustre_cfg_bufs_reset(&mgi->mgi_bufs, NULL);
 135         lustre_cfg_bufs_set_string(&mgi->mgi_bufs, 1, msp->mgs_param);
 136         OBD_ALLOC(lcfg, lustre_cfg_len(mgi->mgi_bufs.lcfg_bufcount,
 137                                        mgi->mgi_bufs.lcfg_buflen));
 138         if (!lcfg)
 139                 RETURN(-ENOMEM);
 140         lustre_cfg_init(lcfg, LCFG_PARAM, &mgi->mgi_bufs);
 141 
 142         rc = mgs_set_param(tsi->tsi_env, exp2mgs_dev(tsi->tsi_exp), lcfg);
 143         if (rc) {
 144                 LCONSOLE_WARN("%s: Unable to set parameter %s: %d\n",
 145                               tgt_name(tsi->tsi_tgt), msp->mgs_param, rc);
 146                 GOTO(out_cfg, rc);
 147         }
 148 
 149         /* send back the whole msp in the reply */
 150         rep_msp = req_capsule_server_get(tsi->tsi_pill, &RMF_MGS_SEND_PARAM);
 151         *rep_msp = *msp;
 152         EXIT;
 153 out_cfg:
 154         OBD_FREE(lcfg, lustre_cfg_len(lcfg->lcfg_bufcount, lcfg->lcfg_buflens));
 155         return rc;
 156 }
 157 #endif

lustre/mgs/mgs_handler.c:#if LUSTRE_VERSION_CODE < OBD_OCD_VERSION(2, 13, 53, 0)

1205 #if LUSTRE_VERSION_CODE < OBD_OCD_VERSION(2, 13, 53, 0)
1206 TGT_MGS_HDL(HAS_REPLY | IS_MUTABLE,     MGS_SET_INFO,    mgs_set_info),
1207 #endif
1208 TGT_MGS_HDL(HAS_REPLY | IS_MUTABLE,     MGS_TARGET_REG,  mgs_target_reg),

lustre/ptlrpc/layout.c:#if LUSTRE_VERSION_CODE < OBD_OCD_VERSION(2, 13, 53, 0)

  74 #if LUSTRE_VERSION_CODE < OBD_OCD_VERSION(2, 13, 53, 0)
  75 static const struct req_msg_field *mgs_set_info[] = {
  76         &RMF_PTLRPC_BODY,
  77         &RMF_MGS_SEND_PARAM
  78 };
  79 #endif

lustre/ptlrpc/layout.c:#if LUSTRE_VERSION_CODE < OBD_OCD_VERSION(2, 13, 53, 0)

 760 #if LUSTRE_VERSION_CODE < OBD_OCD_VERSION(2, 13, 53, 0)
 761         &RQF_MGS_SET_INFO,
 762 #endif

lustre/ptlrpc/layout.c:#if LUSTRE_VERSION_CODE < OBD_OCD_VERSION(2, 13, 53, 0)

 905 #if LUSTRE_VERSION_CODE < OBD_OCD_VERSION(2, 13, 53, 0)
 906 struct req_msg_field RMF_MGS_SEND_PARAM =
 907         DEFINE_MSGF("mgs_send_param", 0,
 908                     sizeof(struct mgs_send_param),
 909                     NULL, NULL);
 910 EXPORT_SYMBOL(RMF_MGS_SEND_PARAM);
 911 #endif

lustre/ptlrpc/layout.c:#if LUSTRE_VERSION_CODE < OBD_OCD_VERSION(2, 13, 53, 0)

1350 #if LUSTRE_VERSION_CODE < OBD_OCD_VERSION(2, 13, 53, 0)
1351 struct req_format RQF_MGS_SET_INFO =
1352         DEFINE_REQ_FMT0("MGS_SET_INFO", mgs_set_info,
1353                          mgs_set_info);
1354 EXPORT_SYMBOL(RQF_MGS_SET_INFO);
1355 #endif

lustre/utils/wirecheck.c:#if LUSTRE_VERSION_CODE < OBD_OCD_VERSION(2, 13, 53, 0)

1613 #if LUSTRE_VERSION_CODE < OBD_OCD_VERSION(2, 13, 53, 0)
1614 static void
1615 check_mgs_send_param(void)
1616 {
1617         BLANK_LINE();
1618         CHECK_STRUCT(mgs_send_param);
1619         CHECK_CVALUE(MGS_PARAM_MAXLEN);
1620         CHECK_MEMBER(mgs_send_param, mgs_param[MGS_PARAM_MAXLEN]);
1621 }
1622 #endif

lustre/utils/wirecheck.c:#if LUSTRE_VERSION_CODE < OBD_OCD_VERSION(2, 13, 53, 0)

2896 #if LUSTRE_VERSION_CODE < OBD_OCD_VERSION(2, 13, 53, 0)
2897         check_mgs_send_param();
2898 #endif

lustre/include/uapi/linux/lustre/lustre_idl.h:#if LUSTRE_VERSION_CODE < OBD_OCD_VERSION(2, 13, 53, 0)

2560 #if LUSTRE_VERSION_CODE < OBD_OCD_VERSION(2, 13, 53, 0)
2561 #define MGS_PARAM_MAXLEN 1024
2562 #define KEY_SET_INFO "set_info"
2563 
2564 struct mgs_send_param {
2565         char             mgs_param[MGS_PARAM_MAXLEN];
2566 };
2567 #endif

[Andreas Dilger]

The 2.13.53 conditionals have been removed in patch https://review.whamcloud.com/38106 "LU-8454 Remove struct mgs_send_param and its users" and the ones for the older versions are removed in patch https://review.whamcloud.com/38109 "LU-6179 llite: remove LOCKAHEAD_OLD compatibility" .