4 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
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.
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).
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
23 * Copyright (c) 2007, 2010, Oracle and/or its affiliates. All rights reserved.
24 * Use is subject to license terms.
26 * Copyright (c) 2011, 2017, Intel Corporation.
29 * This file is part of Lustre, http://www.lustre.org/
31 * lustre/ptlrpc/layout.c
33 * Lustre Metadata Target (mdt) request handler
35 * Author: Nikita Danilov <nikita@clusterfs.com>
38 * This file contains the "capsule/pill" abstraction layered above PTLRPC.
40 * Every struct ptlrpc_request contains a "pill", which points to a description
41 * of the format that the request conforms to.
44 #define DEBUG_SUBSYSTEM S_RPC
46 #include <linux/module.h>
48 #include <llog_swab.h>
49 #include <lustre_swab.h>
51 #include <obd_support.h>
53 /* struct ptlrpc_request, lustre_msg* */
54 #include <lustre_req_layout.h>
55 #include <lustre_acl.h>
56 #include <lustre_nodemap.h>
59 * RQFs (see below) refer to two struct req_msg_field arrays describing the
60 * client request and server reply, respectively.
62 /* empty set of fields... for suitable definition of emptiness. */
63 static const struct req_msg_field *empty[] = {
67 static const struct req_msg_field *mgs_target_info_only[] = {
72 #if LUSTRE_VERSION_CODE < OBD_OCD_VERSION(2, 18, 53, 0)
73 static const struct req_msg_field *mgs_set_info[] = {
79 static const struct req_msg_field *mgs_config_read_client[] = {
84 static const struct req_msg_field *mgs_config_read_server[] = {
89 static const struct req_msg_field *mdt_body_only[] = {
94 static const struct req_msg_field *mdt_body_capa[] = {
100 static const struct req_msg_field *quotactl_only[] = {
105 static const struct req_msg_field *quota_body_only[] = {
110 static const struct req_msg_field *ldlm_intent_quota_client[] = {
117 static const struct req_msg_field *ldlm_intent_quota_server[] = {
124 static const struct req_msg_field *mdt_close_client[] = {
131 static const struct req_msg_field *mdt_close_intent_client[] = {
140 static const struct req_msg_field *obd_statfs_server[] = {
145 static const struct req_msg_field *seq_query_client[] = {
151 static const struct req_msg_field *seq_query_server[] = {
156 static const struct req_msg_field *fld_query_client[] = {
162 static const struct req_msg_field *fld_query_server[] = {
167 static const struct req_msg_field *fld_read_client[] = {
172 static const struct req_msg_field *fld_read_server[] = {
177 static const struct req_msg_field *mds_getattr_name_client[] = {
184 static const struct req_msg_field *mds_reint_client[] = {
189 static const struct req_msg_field *mds_reint_create_client[] = {
196 static const struct req_msg_field *mds_reint_create_slave_client[] = {
205 static const struct req_msg_field *mds_reint_create_acl_client[] = {
212 &RMF_FILE_SECCTX_NAME,
218 static const struct req_msg_field *mds_reint_create_sym_client[] = {
225 &RMF_FILE_SECCTX_NAME,
231 static const struct req_msg_field *mds_reint_open_client[] = {
238 &RMF_FILE_SECCTX_NAME,
244 static const struct req_msg_field *mds_reint_open_server[] = {
253 static const struct req_msg_field *mds_reint_unlink_client[] = {
262 static const struct req_msg_field *mds_reint_link_client[] = {
272 static const struct req_msg_field *mds_reint_rename_client[] = {
283 static const struct req_msg_field *mds_reint_migrate_client[] = {
297 static const struct req_msg_field *mds_last_unlink_server[] = {
306 static const struct req_msg_field *mds_reint_setattr_client[] = {
316 static const struct req_msg_field *mds_reint_setxattr_client[] = {
326 static const struct req_msg_field *mds_reint_resync[] = {
332 static const struct req_msg_field *mdt_swap_layouts[] = {
341 static const struct req_msg_field *mds_rmfid_client[] = {
349 static const struct req_msg_field *mds_rmfid_server[] = {
356 static const struct req_msg_field *obd_connect_client[] = {
365 static const struct req_msg_field *obd_connect_server[] = {
370 static const struct req_msg_field *obd_set_info_client[] = {
376 static const struct req_msg_field *mdt_set_info_client[] = {
383 static const struct req_msg_field *ost_grant_shrink_client[] = {
389 static const struct req_msg_field *mds_getinfo_client[] = {
395 static const struct req_msg_field *mds_getinfo_server[] = {
400 static const struct req_msg_field *ldlm_enqueue_client[] = {
405 static const struct req_msg_field *ldlm_enqueue_server[] = {
410 static const struct req_msg_field *ldlm_enqueue_lvb_server[] = {
416 static const struct req_msg_field *ldlm_cp_callback_client[] = {
422 static const struct req_msg_field *ldlm_gl_callback_desc_client[] = {
428 static const struct req_msg_field *ldlm_gl_callback_server[] = {
433 static const struct req_msg_field *ldlm_intent_basic_client[] = {
439 static const struct req_msg_field *ldlm_intent_client[] = {
446 static const struct req_msg_field *ldlm_intent_server[] = {
454 static const struct req_msg_field *ldlm_intent_layout_client[] = {
459 &RMF_EADATA /* for new layout to be set up */
462 static const struct req_msg_field *ldlm_intent_open_server[] = {
476 static const struct req_msg_field *ldlm_intent_getattr_client[] = {
480 &RMF_MDT_BODY, /* coincides with mds_getattr_name_client[] */
483 &RMF_FILE_SECCTX_NAME
486 static const struct req_msg_field *ldlm_intent_getattr_server[] = {
498 static const struct req_msg_field *ldlm_intent_create_client[] = {
502 &RMF_REC_REINT, /* coincides with mds_reint_create_client[] */
506 &RMF_FILE_SECCTX_NAME,
512 static const struct req_msg_field *ldlm_intent_open_client[] = {
516 &RMF_REC_REINT, /* coincides with mds_reint_open_client[] */
521 &RMF_FILE_SECCTX_NAME,
527 static const struct req_msg_field *ldlm_intent_getxattr_client[] = {
536 static const struct req_msg_field *ldlm_intent_getxattr_server[] = {
541 &RMF_ACL, /* for req_capsule_extend/mdt_intent_policy */
547 static const struct req_msg_field *mds_get_root_client[] = {
553 static const struct req_msg_field *mds_getxattr_client[] = {
562 static const struct req_msg_field *mds_getxattr_server[] = {
568 static const struct req_msg_field *mds_getattr_server[] = {
578 static const struct req_msg_field *mds_setattr_server[] = {
587 static const struct req_msg_field *mds_batch_client[] = {
593 static const struct req_msg_field *mds_batch_server[] = {
598 static const struct req_msg_field *llog_origin_handle_create_client[] = {
605 static const struct req_msg_field *llogd_body_only[] = {
610 static const struct req_msg_field *llog_log_hdr_only[] = {
615 static const struct req_msg_field *llog_origin_handle_next_block_server[] = {
621 static const struct req_msg_field *obd_idx_read_client[] = {
626 static const struct req_msg_field *obd_idx_read_server[] = {
631 static const struct req_msg_field *ost_body_only[] = {
636 static const struct req_msg_field *ost_body_capa[] = {
642 static const struct req_msg_field *ost_destroy_client[] = {
650 static const struct req_msg_field *ost_brw_client[] = {
659 static const struct req_msg_field *ost_brw_read_server[] = {
665 static const struct req_msg_field *ost_brw_write_server[] = {
671 static const struct req_msg_field *ost_get_info_generic_server[] = {
676 static const struct req_msg_field *ost_get_info_generic_client[] = {
681 static const struct req_msg_field *ost_get_last_id_server[] = {
686 static const struct req_msg_field *ost_get_last_fid_client[] = {
692 static const struct req_msg_field *ost_get_last_fid_server[] = {
697 static const struct req_msg_field *ost_get_fiemap_client[] = {
703 static const struct req_msg_field *ost_ladvise[] = {
706 &RMF_OST_LADVISE_HDR,
710 static const struct req_msg_field *ost_get_fiemap_server[] = {
715 static const struct req_msg_field *mdt_hsm_progress[] = {
718 &RMF_MDS_HSM_PROGRESS,
721 static const struct req_msg_field *mdt_hsm_ct_register[] = {
724 &RMF_MDS_HSM_ARCHIVE,
727 static const struct req_msg_field *mdt_hsm_ct_unregister[] = {
732 static const struct req_msg_field *mdt_hsm_action_server[] = {
735 &RMF_MDS_HSM_CURRENT_ACTION,
738 static const struct req_msg_field *mdt_hsm_state_get_server[] = {
744 static const struct req_msg_field *mdt_hsm_state_set[] = {
751 static const struct req_msg_field *mdt_hsm_request[] = {
754 &RMF_MDS_HSM_REQUEST,
755 &RMF_MDS_HSM_USER_ITEM,
759 static const struct req_msg_field *obd_lfsck_request[] = {
764 static const struct req_msg_field *obd_lfsck_reply[] = {
769 static const struct req_msg_field *mds_batch_getattr_client[] = {
772 &RMF_MDT_BODY, /* coincides with mds_getattr_name_client[] */
775 &RMF_FILE_SECCTX_NAME
778 static const struct req_msg_field *mds_batch_getattr_server[] = {
789 static struct req_format *req_formats[] = {
796 #if LUSTRE_VERSION_CODE < OBD_OCD_VERSION(2, 18, 53, 0)
799 &RQF_MGS_CONFIG_READ,
810 &RQF_MDS_GETATTR_NAME,
814 &RQF_MDS_CLOSE_INTENT,
817 &RQF_MDS_REINT_CREATE,
818 &RQF_MDS_REINT_CREATE_ACL,
819 &RQF_MDS_REINT_CREATE_SLAVE,
820 &RQF_MDS_REINT_CREATE_SYM,
822 &RQF_MDS_REINT_UNLINK,
824 &RQF_MDS_REINT_RENAME,
825 &RQF_MDS_REINT_MIGRATE,
826 &RQF_MDS_REINT_SETATTR,
827 &RQF_MDS_REINT_SETXATTR,
828 &RQF_MDS_REINT_RESYNC,
830 &RQF_MDS_HSM_PROGRESS,
831 &RQF_MDS_HSM_CT_REGISTER,
832 &RQF_MDS_HSM_CT_UNREGISTER,
833 &RQF_MDS_HSM_STATE_GET,
834 &RQF_MDS_HSM_STATE_SET,
836 &RQF_MDS_HSM_REQUEST,
837 &RQF_MDS_SWAP_LAYOUTS,
839 #ifdef HAVE_SERVER_SUPPORT
855 &RQF_OST_SET_GRANT_INFO,
857 &RQF_OST_GET_INFO_LAST_ID,
858 &RQF_OST_GET_INFO_LAST_FID,
859 &RQF_OST_SET_INFO_LAST_FID,
860 &RQF_OST_GET_INFO_FIEMAP,
864 &RQF_LDLM_ENQUEUE_LVB,
868 &RQF_LDLM_CP_CALLBACK,
869 &RQF_LDLM_BL_CALLBACK,
870 &RQF_LDLM_GL_CALLBACK,
871 &RQF_LDLM_GL_CALLBACK_DESC,
873 &RQF_LDLM_INTENT_BASIC,
874 &RQF_LDLM_INTENT_LAYOUT,
875 &RQF_LDLM_INTENT_GETATTR,
876 &RQF_LDLM_INTENT_OPEN,
877 &RQF_LDLM_INTENT_CREATE,
878 &RQF_LDLM_INTENT_GETXATTR,
879 &RQF_LDLM_INTENT_QUOTA,
881 &RQF_LLOG_ORIGIN_HANDLE_CREATE,
882 &RQF_LLOG_ORIGIN_HANDLE_NEXT_BLOCK,
883 &RQF_LLOG_ORIGIN_HANDLE_PREV_BLOCK,
884 &RQF_LLOG_ORIGIN_HANDLE_READ_HEADER,
892 struct req_msg_field {
893 const __u32 rmf_flags;
894 const char *rmf_name;
896 * Field length. (-1) means "variable length". If the
897 * \a RMF_F_STRUCT_ARRAY flag is set the field is also variable-length,
898 * but the actual size must be a whole multiple of \a rmf_size.
901 void (*rmf_swabber)(void *);
903 * Pass buffer size to swabbing function
904 * \retval > 0 the number of bytes swabbed
905 * -EOVERFLOW on error
907 int (*rmf_swab_len)(void *, __u32);
908 void (*rmf_dumper)(void *);
909 int rmf_offset[ARRAY_SIZE(req_formats)][RCL_NR];
914 * The field is a string, must be NUL-terminated.
916 RMF_F_STRING = BIT(0),
918 * The field's buffer size need not match the declared \a rmf_size.
920 RMF_F_NO_SIZE_CHECK = BIT(1),
922 * The field's buffer size must be a whole multiple of the declared \a
923 * rmf_size and the \a rmf_swabber function must work on the declared \a
924 * rmf_size worth of bytes.
926 RMF_F_STRUCT_ARRAY = BIT(2),
934 #define DEFINE_MSGF(name, flags, size, swabber, dumper) { \
935 .rmf_name = (name), \
936 .rmf_flags = (flags), \
937 .rmf_size = (size), \
938 .rmf_swabber = (void (*)(void*))(swabber), \
939 .rmf_dumper = (void (*)(void*))(dumper) \
942 #define DEFINE_MSGFL(name, flags, size, swab_len, dumper) { \
943 .rmf_name = (name), \
944 .rmf_flags = (flags), \
945 .rmf_size = (size), \
946 .rmf_swab_len = (int (*)(void *, __u32))(swab_len), \
947 .rmf_dumper = (void (*)(void *))(dumper) \
950 struct req_msg_field RMF_GENERIC_DATA =
951 DEFINE_MSGF("generic_data", 0,
953 EXPORT_SYMBOL(RMF_GENERIC_DATA);
955 struct req_msg_field RMF_MGS_TARGET_INFO =
956 DEFINE_MSGF("mgs_target_info", 0,
957 sizeof(struct mgs_target_info),
958 lustre_swab_mgs_target_info, NULL);
959 EXPORT_SYMBOL(RMF_MGS_TARGET_INFO);
961 #if LUSTRE_VERSION_CODE < OBD_OCD_VERSION(2, 18, 53, 0)
962 struct req_msg_field RMF_MGS_SEND_PARAM =
963 DEFINE_MSGF("mgs_send_param", 0,
964 sizeof(struct mgs_send_param),
966 EXPORT_SYMBOL(RMF_MGS_SEND_PARAM);
969 struct req_msg_field RMF_MGS_CONFIG_BODY =
970 DEFINE_MSGF("mgs_config_read request", 0,
971 sizeof(struct mgs_config_body),
972 lustre_swab_mgs_config_body, NULL);
973 EXPORT_SYMBOL(RMF_MGS_CONFIG_BODY);
975 struct req_msg_field RMF_MGS_CONFIG_RES =
976 DEFINE_MSGF("mgs_config_read reply ", 0,
977 sizeof(struct mgs_config_res),
978 lustre_swab_mgs_config_res, NULL);
979 EXPORT_SYMBOL(RMF_MGS_CONFIG_RES);
981 struct req_msg_field RMF_U32 =
982 DEFINE_MSGF("generic u32", RMF_F_STRUCT_ARRAY,
983 sizeof(__u32), lustre_swab_generic_32s, NULL);
984 EXPORT_SYMBOL(RMF_U32);
986 struct req_msg_field RMF_SETINFO_VAL =
987 DEFINE_MSGF("setinfo_val", 0, -1, NULL, NULL);
988 EXPORT_SYMBOL(RMF_SETINFO_VAL);
990 struct req_msg_field RMF_GETINFO_KEY =
991 DEFINE_MSGF("getinfo_key", 0, -1, NULL, NULL);
992 EXPORT_SYMBOL(RMF_GETINFO_KEY);
994 struct req_msg_field RMF_GETINFO_VALLEN =
995 DEFINE_MSGF("getinfo_vallen", 0,
996 sizeof(__u32), lustre_swab_generic_32s, NULL);
997 EXPORT_SYMBOL(RMF_GETINFO_VALLEN);
999 struct req_msg_field RMF_GETINFO_VAL =
1000 DEFINE_MSGF("getinfo_val", 0, -1, NULL, NULL);
1001 EXPORT_SYMBOL(RMF_GETINFO_VAL);
1003 struct req_msg_field RMF_SEQ_OPC =
1004 DEFINE_MSGF("seq_query_opc", 0,
1005 sizeof(__u32), lustre_swab_generic_32s, NULL);
1006 EXPORT_SYMBOL(RMF_SEQ_OPC);
1008 struct req_msg_field RMF_SEQ_RANGE =
1009 DEFINE_MSGF("seq_query_range", 0,
1010 sizeof(struct lu_seq_range),
1011 lustre_swab_lu_seq_range, NULL);
1012 EXPORT_SYMBOL(RMF_SEQ_RANGE);
1014 struct req_msg_field RMF_FLD_OPC =
1015 DEFINE_MSGF("fld_query_opc", 0,
1016 sizeof(__u32), lustre_swab_generic_32s, NULL);
1017 EXPORT_SYMBOL(RMF_FLD_OPC);
1019 struct req_msg_field RMF_FLD_MDFLD =
1020 DEFINE_MSGF("fld_query_mdfld", 0,
1021 sizeof(struct lu_seq_range),
1022 lustre_swab_lu_seq_range, NULL);
1023 EXPORT_SYMBOL(RMF_FLD_MDFLD);
1025 struct req_msg_field RMF_MDT_BODY =
1026 DEFINE_MSGF("mdt_body", 0,
1027 sizeof(struct mdt_body), lustre_swab_mdt_body, NULL);
1028 EXPORT_SYMBOL(RMF_MDT_BODY);
1030 struct req_msg_field RMF_OBD_QUOTACTL =
1031 DEFINE_MSGFL("obd_quotactl",
1033 sizeof(struct obd_quotactl),
1034 lustre_swab_obd_quotactl, NULL);
1035 EXPORT_SYMBOL(RMF_OBD_QUOTACTL);
1037 struct req_msg_field RMF_QUOTA_BODY =
1038 DEFINE_MSGF("quota_body", 0,
1039 sizeof(struct quota_body), lustre_swab_quota_body, NULL);
1040 EXPORT_SYMBOL(RMF_QUOTA_BODY);
1042 struct req_msg_field RMF_MDT_EPOCH =
1043 DEFINE_MSGF("mdt_ioepoch", 0,
1044 sizeof(struct mdt_ioepoch), lustre_swab_mdt_ioepoch, NULL);
1045 EXPORT_SYMBOL(RMF_MDT_EPOCH);
1047 struct req_msg_field RMF_PTLRPC_BODY =
1048 DEFINE_MSGF("ptlrpc_body", 0,
1049 sizeof(struct ptlrpc_body), lustre_swab_ptlrpc_body, NULL);
1050 EXPORT_SYMBOL(RMF_PTLRPC_BODY);
1052 struct req_msg_field RMF_CLOSE_DATA =
1053 DEFINE_MSGF("data_version", 0,
1054 sizeof(struct close_data), lustre_swab_close_data, NULL);
1055 EXPORT_SYMBOL(RMF_CLOSE_DATA);
1057 struct req_msg_field RMF_OBD_STATFS =
1058 DEFINE_MSGF("obd_statfs", 0,
1059 sizeof(struct obd_statfs), lustre_swab_obd_statfs, NULL);
1060 EXPORT_SYMBOL(RMF_OBD_STATFS);
1062 struct req_msg_field RMF_SETINFO_KEY =
1063 DEFINE_MSGF("setinfo_key", 0, -1, NULL, NULL);
1064 EXPORT_SYMBOL(RMF_SETINFO_KEY);
1066 struct req_msg_field RMF_NAME =
1067 DEFINE_MSGF("name", RMF_F_STRING, -1, NULL, NULL);
1068 EXPORT_SYMBOL(RMF_NAME);
1070 struct req_msg_field RMF_FID_ARRAY =
1071 DEFINE_MSGF("fid_array", 0, -1, NULL, NULL);
1072 EXPORT_SYMBOL(RMF_FID_ARRAY);
1074 struct req_msg_field RMF_SYMTGT =
1075 DEFINE_MSGF("symtgt", 0, -1, NULL, NULL);
1076 EXPORT_SYMBOL(RMF_SYMTGT);
1078 struct req_msg_field RMF_TGTUUID =
1079 DEFINE_MSGF("tgtuuid", RMF_F_STRING, sizeof(struct obd_uuid) - 1, NULL,
1081 EXPORT_SYMBOL(RMF_TGTUUID);
1083 struct req_msg_field RMF_CLUUID =
1084 DEFINE_MSGF("cluuid", RMF_F_STRING, sizeof(struct obd_uuid) - 1, NULL,
1086 EXPORT_SYMBOL(RMF_CLUUID);
1088 struct req_msg_field RMF_STRING =
1089 DEFINE_MSGF("string", RMF_F_STRING, -1, NULL, NULL);
1090 EXPORT_SYMBOL(RMF_STRING);
1092 struct req_msg_field RMF_FILE_SECCTX_NAME =
1093 DEFINE_MSGF("file_secctx_name", RMF_F_STRING, -1, NULL, NULL);
1094 EXPORT_SYMBOL(RMF_FILE_SECCTX_NAME);
1096 struct req_msg_field RMF_FILE_SECCTX =
1097 DEFINE_MSGF("file_secctx", RMF_F_NO_SIZE_CHECK, -1, NULL, NULL);
1098 EXPORT_SYMBOL(RMF_FILE_SECCTX);
1100 struct req_msg_field RMF_FILE_ENCCTX =
1101 DEFINE_MSGF("file_encctx", RMF_F_NO_SIZE_CHECK, -1, NULL, NULL);
1102 EXPORT_SYMBOL(RMF_FILE_ENCCTX);
1104 struct req_msg_field RMF_LLOGD_BODY =
1105 DEFINE_MSGF("llogd_body", 0,
1106 sizeof(struct llogd_body), lustre_swab_llogd_body, NULL);
1107 EXPORT_SYMBOL(RMF_LLOGD_BODY);
1109 struct req_msg_field RMF_LLOG_LOG_HDR =
1110 DEFINE_MSGF("llog_log_hdr", 0,
1111 sizeof(struct llog_log_hdr), lustre_swab_llog_hdr, NULL);
1112 EXPORT_SYMBOL(RMF_LLOG_LOG_HDR);
1114 struct req_msg_field RMF_LLOGD_CONN_BODY =
1115 DEFINE_MSGF("llogd_conn_body", 0,
1116 sizeof(struct llogd_conn_body),
1117 lustre_swab_llogd_conn_body, NULL);
1118 EXPORT_SYMBOL(RMF_LLOGD_CONN_BODY);
1121 * connection handle received in MDS_CONNECT request.
1123 * No swabbing needed because struct lustre_handle contains only a 64-bit cookie
1124 * that the client does not interpret at all.
1126 struct req_msg_field RMF_CONN =
1127 DEFINE_MSGF("conn", 0, sizeof(struct lustre_handle), NULL, NULL);
1128 EXPORT_SYMBOL(RMF_CONN);
1130 struct req_msg_field RMF_CONNECT_DATA =
1131 DEFINE_MSGF("cdata",
1132 RMF_F_NO_SIZE_CHECK /* we allow extra space for interop */,
1133 sizeof(struct obd_connect_data),
1134 lustre_swab_connect, NULL);
1135 EXPORT_SYMBOL(RMF_CONNECT_DATA);
1137 struct req_msg_field RMF_DLM_REQ =
1138 DEFINE_MSGF("dlm_req", RMF_F_NO_SIZE_CHECK /* ldlm_request_bufsize */,
1139 sizeof(struct ldlm_request),
1140 lustre_swab_ldlm_request, NULL);
1141 EXPORT_SYMBOL(RMF_DLM_REQ);
1143 struct req_msg_field RMF_DLM_REP =
1144 DEFINE_MSGF("dlm_rep", 0,
1145 sizeof(struct ldlm_reply), lustre_swab_ldlm_reply, NULL);
1146 EXPORT_SYMBOL(RMF_DLM_REP);
1148 struct req_msg_field RMF_LDLM_INTENT =
1149 DEFINE_MSGF("ldlm_intent", 0,
1150 sizeof(struct ldlm_intent), lustre_swab_ldlm_intent, NULL);
1151 EXPORT_SYMBOL(RMF_LDLM_INTENT);
1153 struct req_msg_field RMF_DLM_LVB =
1154 DEFINE_MSGF("dlm_lvb", 0, -1, NULL, NULL);
1155 EXPORT_SYMBOL(RMF_DLM_LVB);
1157 struct req_msg_field RMF_DLM_GL_DESC =
1158 DEFINE_MSGF("dlm_gl_desc", 0, sizeof(union ldlm_gl_desc), NULL, NULL);
1159 EXPORT_SYMBOL(RMF_DLM_GL_DESC);
1161 struct req_msg_field RMF_MDT_MD =
1162 DEFINE_MSGF("mdt_md", RMF_F_NO_SIZE_CHECK, MIN_MD_SIZE, NULL, NULL);
1163 EXPORT_SYMBOL(RMF_MDT_MD);
1165 struct req_msg_field RMF_DEFAULT_MDT_MD =
1166 DEFINE_MSGF("default_mdt_md", RMF_F_NO_SIZE_CHECK, MIN_MD_SIZE, NULL,
1168 EXPORT_SYMBOL(RMF_DEFAULT_MDT_MD);
1170 struct req_msg_field RMF_REC_REINT =
1171 DEFINE_MSGF("rec_reint", 0, sizeof(struct mdt_rec_reint),
1172 lustre_swab_mdt_rec_reint, NULL);
1173 EXPORT_SYMBOL(RMF_REC_REINT);
1175 /* FIXME: this length should be defined as a macro */
1176 struct req_msg_field RMF_EADATA = DEFINE_MSGF("eadata", 0, -1,
1178 EXPORT_SYMBOL(RMF_EADATA);
1180 struct req_msg_field RMF_EAVALS = DEFINE_MSGF("eavals", 0, -1, NULL, NULL);
1181 EXPORT_SYMBOL(RMF_EAVALS);
1183 struct req_msg_field RMF_ACL = DEFINE_MSGF("acl", 0, -1, NULL, NULL);
1184 EXPORT_SYMBOL(RMF_ACL);
1186 /* FIXME: this should be made to use RMF_F_STRUCT_ARRAY */
1187 struct req_msg_field RMF_LOGCOOKIES =
1188 DEFINE_MSGF("logcookies", RMF_F_NO_SIZE_CHECK /* multiple cookies */,
1189 sizeof(struct llog_cookie), NULL, NULL);
1190 EXPORT_SYMBOL(RMF_LOGCOOKIES);
1192 struct req_msg_field RMF_CAPA1 =
1193 DEFINE_MSGF("capa", 0, 0, NULL, NULL);
1194 EXPORT_SYMBOL(RMF_CAPA1);
1196 struct req_msg_field RMF_CAPA2 =
1197 DEFINE_MSGF("capa", 0, 0, NULL, NULL);
1198 EXPORT_SYMBOL(RMF_CAPA2);
1200 struct req_msg_field RMF_LAYOUT_INTENT =
1201 DEFINE_MSGF("layout_intent", 0,
1202 sizeof(struct layout_intent), lustre_swab_layout_intent,
1204 EXPORT_SYMBOL(RMF_LAYOUT_INTENT);
1206 struct req_msg_field RMF_SELINUX_POL =
1207 DEFINE_MSGF("selinux_pol", RMF_F_STRING, -1, NULL, NULL);
1208 EXPORT_SYMBOL(RMF_SELINUX_POL);
1211 * OST request field.
1213 struct req_msg_field RMF_OST_BODY =
1214 DEFINE_MSGF("ost_body", 0,
1215 sizeof(struct ost_body), lustre_swab_ost_body,
1217 EXPORT_SYMBOL(RMF_OST_BODY);
1219 struct req_msg_field RMF_OBD_IOOBJ =
1220 DEFINE_MSGF("obd_ioobj", RMF_F_STRUCT_ARRAY,
1221 sizeof(struct obd_ioobj), lustre_swab_obd_ioobj, dump_ioo);
1222 EXPORT_SYMBOL(RMF_OBD_IOOBJ);
1224 struct req_msg_field RMF_NIOBUF_REMOTE =
1225 DEFINE_MSGF("niobuf_remote", RMF_F_STRUCT_ARRAY,
1226 sizeof(struct niobuf_remote), lustre_swab_niobuf_remote,
1228 EXPORT_SYMBOL(RMF_NIOBUF_REMOTE);
1230 struct req_msg_field RMF_NIOBUF_INLINE =
1231 DEFINE_MSGF("niobuf_inline", RMF_F_NO_SIZE_CHECK,
1232 sizeof(struct niobuf_remote), lustre_swab_niobuf_remote,
1234 EXPORT_SYMBOL(RMF_NIOBUF_INLINE);
1236 struct req_msg_field RMF_RCS =
1237 DEFINE_MSGF("niobuf_rcs", RMF_F_STRUCT_ARRAY, sizeof(__u32),
1238 lustre_swab_generic_32s, dump_rcs);
1239 EXPORT_SYMBOL(RMF_RCS);
1241 struct req_msg_field RMF_EAVALS_LENS =
1242 DEFINE_MSGF("eavals_lens", RMF_F_STRUCT_ARRAY, sizeof(__u32),
1243 lustre_swab_generic_32s, NULL);
1244 EXPORT_SYMBOL(RMF_EAVALS_LENS);
1246 struct req_msg_field RMF_OBD_ID =
1247 DEFINE_MSGF("obd_id", 0,
1248 sizeof(__u64), lustre_swab_ost_last_id, NULL);
1249 EXPORT_SYMBOL(RMF_OBD_ID);
1251 struct req_msg_field RMF_FID =
1252 DEFINE_MSGF("fid", 0,
1253 sizeof(struct lu_fid), lustre_swab_lu_fid, NULL);
1254 EXPORT_SYMBOL(RMF_FID);
1256 struct req_msg_field RMF_OST_ID =
1257 DEFINE_MSGF("ost_id", 0,
1258 sizeof(struct ost_id), lustre_swab_ost_id, NULL);
1259 EXPORT_SYMBOL(RMF_OST_ID);
1261 struct req_msg_field RMF_FIEMAP_KEY =
1262 DEFINE_MSGF("fiemap_key", 0, sizeof(struct ll_fiemap_info_key),
1263 lustre_swab_fiemap_info_key, NULL);
1264 EXPORT_SYMBOL(RMF_FIEMAP_KEY);
1266 struct req_msg_field RMF_FIEMAP_VAL =
1267 DEFINE_MSGFL("fiemap", 0, -1, lustre_swab_fiemap, NULL);
1268 EXPORT_SYMBOL(RMF_FIEMAP_VAL);
1270 struct req_msg_field RMF_IDX_INFO =
1271 DEFINE_MSGF("idx_info", 0, sizeof(struct idx_info),
1272 lustre_swab_idx_info, NULL);
1273 EXPORT_SYMBOL(RMF_IDX_INFO);
1274 struct req_msg_field RMF_SHORT_IO =
1275 DEFINE_MSGF("short_io", 0, -1, NULL, NULL);
1276 EXPORT_SYMBOL(RMF_SHORT_IO);
1277 struct req_msg_field RMF_HSM_USER_STATE =
1278 DEFINE_MSGF("hsm_user_state", 0, sizeof(struct hsm_user_state),
1279 lustre_swab_hsm_user_state, NULL);
1280 EXPORT_SYMBOL(RMF_HSM_USER_STATE);
1282 struct req_msg_field RMF_HSM_STATE_SET =
1283 DEFINE_MSGF("hsm_state_set", 0, sizeof(struct hsm_state_set),
1284 lustre_swab_hsm_state_set, NULL);
1285 EXPORT_SYMBOL(RMF_HSM_STATE_SET);
1287 struct req_msg_field RMF_MDS_HSM_PROGRESS =
1288 DEFINE_MSGF("hsm_progress", 0, sizeof(struct hsm_progress_kernel),
1289 lustre_swab_hsm_progress_kernel, NULL);
1290 EXPORT_SYMBOL(RMF_MDS_HSM_PROGRESS);
1292 struct req_msg_field RMF_MDS_HSM_CURRENT_ACTION =
1293 DEFINE_MSGF("hsm_current_action", 0, sizeof(struct hsm_current_action),
1294 lustre_swab_hsm_current_action, NULL);
1295 EXPORT_SYMBOL(RMF_MDS_HSM_CURRENT_ACTION);
1297 struct req_msg_field RMF_MDS_HSM_USER_ITEM =
1298 DEFINE_MSGF("hsm_user_item", RMF_F_STRUCT_ARRAY,
1299 sizeof(struct hsm_user_item), lustre_swab_hsm_user_item,
1301 EXPORT_SYMBOL(RMF_MDS_HSM_USER_ITEM);
1303 struct req_msg_field RMF_MDS_HSM_ARCHIVE =
1304 DEFINE_MSGF("hsm_archive", RMF_F_STRUCT_ARRAY,
1305 sizeof(__u32), lustre_swab_generic_32s, NULL);
1306 EXPORT_SYMBOL(RMF_MDS_HSM_ARCHIVE);
1308 struct req_msg_field RMF_MDS_HSM_REQUEST =
1309 DEFINE_MSGF("hsm_request", 0, sizeof(struct hsm_request),
1310 lustre_swab_hsm_request, NULL);
1311 EXPORT_SYMBOL(RMF_MDS_HSM_REQUEST);
1313 struct req_msg_field RMF_SWAP_LAYOUTS =
1314 DEFINE_MSGF("swap_layouts", 0, sizeof(struct mdc_swap_layouts),
1315 lustre_swab_swap_layouts, NULL);
1316 EXPORT_SYMBOL(RMF_SWAP_LAYOUTS);
1318 struct req_msg_field RMF_LFSCK_REQUEST =
1319 DEFINE_MSGF("lfsck_request", 0, sizeof(struct lfsck_request),
1320 lustre_swab_lfsck_request, NULL);
1321 EXPORT_SYMBOL(RMF_LFSCK_REQUEST);
1323 struct req_msg_field RMF_LFSCK_REPLY =
1324 DEFINE_MSGF("lfsck_reply", 0, sizeof(struct lfsck_reply),
1325 lustre_swab_lfsck_reply, NULL);
1326 EXPORT_SYMBOL(RMF_LFSCK_REPLY);
1328 struct req_msg_field RMF_OST_LADVISE_HDR =
1329 DEFINE_MSGF("ladvise_request", 0,
1330 sizeof(struct ladvise_hdr),
1331 lustre_swab_ladvise_hdr, NULL);
1332 EXPORT_SYMBOL(RMF_OST_LADVISE_HDR);
1334 struct req_msg_field RMF_OST_LADVISE =
1335 DEFINE_MSGF("ladvise_request", RMF_F_STRUCT_ARRAY,
1336 sizeof(struct lu_ladvise),
1337 lustre_swab_ladvise, NULL);
1338 EXPORT_SYMBOL(RMF_OST_LADVISE);
1340 struct req_msg_field RMF_BUT_REPLY =
1341 DEFINE_MSGF("batch_update_reply", 0, -1,
1342 lustre_swab_batch_update_reply, NULL);
1343 EXPORT_SYMBOL(RMF_BUT_REPLY);
1345 struct req_msg_field RMF_BUT_HEADER = DEFINE_MSGF("but_update_header", 0,
1346 -1, lustre_swab_but_update_header, NULL);
1347 EXPORT_SYMBOL(RMF_BUT_HEADER);
1349 struct req_msg_field RMF_BUT_BUF = DEFINE_MSGF("but_update_buf",
1350 RMF_F_STRUCT_ARRAY, sizeof(struct but_update_buffer),
1351 lustre_swab_but_update_buffer, NULL);
1352 EXPORT_SYMBOL(RMF_BUT_BUF);
1359 const char *rf_name;
1363 const struct req_msg_field **d;
1364 } rf_fields[RCL_NR];
1367 #define DEFINE_REQ_FMT(name, client, client_nr, server, server_nr) { \
1381 #define DEFINE_REQ_FMT0(name, client, server) \
1382 DEFINE_REQ_FMT(name, client, ARRAY_SIZE(client), server, ARRAY_SIZE(server))
1384 struct req_format RQF_OBD_PING =
1385 DEFINE_REQ_FMT0("OBD_PING", empty, empty);
1386 EXPORT_SYMBOL(RQF_OBD_PING);
1388 struct req_format RQF_OBD_SET_INFO =
1389 DEFINE_REQ_FMT0("OBD_SET_INFO", obd_set_info_client, empty);
1390 EXPORT_SYMBOL(RQF_OBD_SET_INFO);
1392 struct req_format RQF_MDT_SET_INFO =
1393 DEFINE_REQ_FMT0("MDT_SET_INFO", mdt_set_info_client, empty);
1394 EXPORT_SYMBOL(RQF_MDT_SET_INFO);
1396 /* Read index file through the network */
1397 struct req_format RQF_OBD_IDX_READ =
1398 DEFINE_REQ_FMT0("OBD_IDX_READ",
1399 obd_idx_read_client, obd_idx_read_server);
1400 EXPORT_SYMBOL(RQF_OBD_IDX_READ);
1402 struct req_format RQF_SEC_CTX =
1403 DEFINE_REQ_FMT0("SEC_CTX", empty, empty);
1404 EXPORT_SYMBOL(RQF_SEC_CTX);
1406 struct req_format RQF_MGS_TARGET_REG =
1407 DEFINE_REQ_FMT0("MGS_TARGET_REG", mgs_target_info_only,
1408 mgs_target_info_only);
1409 EXPORT_SYMBOL(RQF_MGS_TARGET_REG);
1411 #if LUSTRE_VERSION_CODE < OBD_OCD_VERSION(2, 18, 53, 0)
1412 struct req_format RQF_MGS_SET_INFO =
1413 DEFINE_REQ_FMT0("MGS_SET_INFO", mgs_set_info,
1415 EXPORT_SYMBOL(RQF_MGS_SET_INFO);
1418 struct req_format RQF_MGS_CONFIG_READ =
1419 DEFINE_REQ_FMT0("MGS_CONFIG_READ", mgs_config_read_client,
1420 mgs_config_read_server);
1421 EXPORT_SYMBOL(RQF_MGS_CONFIG_READ);
1423 struct req_format RQF_SEQ_QUERY =
1424 DEFINE_REQ_FMT0("SEQ_QUERY", seq_query_client, seq_query_server);
1425 EXPORT_SYMBOL(RQF_SEQ_QUERY);
1427 struct req_format RQF_FLD_QUERY =
1428 DEFINE_REQ_FMT0("FLD_QUERY", fld_query_client, fld_query_server);
1429 EXPORT_SYMBOL(RQF_FLD_QUERY);
1431 /* The 'fld_read_server' uses 'RMF_GENERIC_DATA' to hold the 'FLD_QUERY'
1432 * RPC reply that is composed of 'struct lu_seq_range_array'. But there
1433 * is not registered swabber function for 'RMF_GENERIC_DATA'. So the RPC
1434 * peers need to handle the RPC reply with fixed little-endian format.
1436 * In theory, we can define new structure with some swabber registered to
1437 * handle the 'FLD_QUERY' RPC reply result automatically. But from the
1438 * implementation view, it is not easy to be done within current "struct
1439 * req_msg_field" framework. Because the sequence range array in the RPC
1440 * reply is not fixed length, instead, its length depends on 'lu_seq_range'
1441 * count, that is unknown when prepare the RPC buffer. Generally, for such
1442 * flexible length RPC usage, there will be a field in the RPC layout to
1443 * indicate the data length. But for the 'FLD_READ' RPC, we have no way to
1444 * do that unless we add new length filed that will broken the on-wire RPC
1445 * protocol and cause interoperability trouble with old peer. */
1446 struct req_format RQF_FLD_READ =
1447 DEFINE_REQ_FMT0("FLD_READ", fld_read_client, fld_read_server);
1448 EXPORT_SYMBOL(RQF_FLD_READ);
1450 struct req_format RQF_MDS_QUOTACTL =
1451 DEFINE_REQ_FMT0("MDS_QUOTACTL", quotactl_only, quotactl_only);
1452 EXPORT_SYMBOL(RQF_MDS_QUOTACTL);
1454 struct req_format RQF_OST_QUOTACTL =
1455 DEFINE_REQ_FMT0("OST_QUOTACTL", quotactl_only, quotactl_only);
1456 EXPORT_SYMBOL(RQF_OST_QUOTACTL);
1458 struct req_format RQF_QUOTA_DQACQ =
1459 DEFINE_REQ_FMT0("QUOTA_DQACQ", quota_body_only, quota_body_only);
1460 EXPORT_SYMBOL(RQF_QUOTA_DQACQ);
1462 struct req_format RQF_LDLM_INTENT_QUOTA =
1463 DEFINE_REQ_FMT0("LDLM_INTENT_QUOTA",
1464 ldlm_intent_quota_client,
1465 ldlm_intent_quota_server);
1466 EXPORT_SYMBOL(RQF_LDLM_INTENT_QUOTA);
1468 struct req_format RQF_MDS_GET_ROOT =
1469 DEFINE_REQ_FMT0("MDS_GET_ROOT", mds_get_root_client, mdt_body_capa);
1470 EXPORT_SYMBOL(RQF_MDS_GET_ROOT);
1472 struct req_format RQF_MDS_STATFS =
1473 DEFINE_REQ_FMT0("MDS_STATFS", empty, obd_statfs_server);
1474 EXPORT_SYMBOL(RQF_MDS_STATFS);
1476 struct req_format RQF_MDS_STATFS_NEW =
1477 DEFINE_REQ_FMT0("MDS_STATFS_NEW", mdt_body_only, obd_statfs_server);
1478 EXPORT_SYMBOL(RQF_MDS_STATFS_NEW);
1480 struct req_format RQF_MDS_SYNC =
1481 DEFINE_REQ_FMT0("MDS_SYNC", mdt_body_capa, mdt_body_only);
1482 EXPORT_SYMBOL(RQF_MDS_SYNC);
1484 struct req_format RQF_MDS_GETATTR =
1485 DEFINE_REQ_FMT0("MDS_GETATTR", mdt_body_capa, mds_getattr_server);
1486 EXPORT_SYMBOL(RQF_MDS_GETATTR);
1488 struct req_format RQF_MDS_GETXATTR =
1489 DEFINE_REQ_FMT0("MDS_GETXATTR",
1490 mds_getxattr_client, mds_getxattr_server);
1491 EXPORT_SYMBOL(RQF_MDS_GETXATTR);
1493 struct req_format RQF_MDS_GETATTR_NAME =
1494 DEFINE_REQ_FMT0("MDS_GETATTR_NAME",
1495 mds_getattr_name_client, mds_getattr_server);
1496 EXPORT_SYMBOL(RQF_MDS_GETATTR_NAME);
1498 struct req_format RQF_MDS_REINT =
1499 DEFINE_REQ_FMT0("MDS_REINT", mds_reint_client, mdt_body_only);
1500 EXPORT_SYMBOL(RQF_MDS_REINT);
1502 struct req_format RQF_MDS_REINT_CREATE =
1503 DEFINE_REQ_FMT0("MDS_REINT_CREATE",
1504 mds_reint_create_client, mdt_body_capa);
1505 EXPORT_SYMBOL(RQF_MDS_REINT_CREATE);
1507 struct req_format RQF_MDS_REINT_CREATE_ACL =
1508 DEFINE_REQ_FMT0("MDS_REINT_CREATE_ACL",
1509 mds_reint_create_acl_client, mdt_body_capa);
1510 EXPORT_SYMBOL(RQF_MDS_REINT_CREATE_ACL);
1512 struct req_format RQF_MDS_REINT_CREATE_SLAVE =
1513 DEFINE_REQ_FMT0("MDS_REINT_CREATE_EA",
1514 mds_reint_create_slave_client, mdt_body_capa);
1515 EXPORT_SYMBOL(RQF_MDS_REINT_CREATE_SLAVE);
1517 struct req_format RQF_MDS_REINT_CREATE_SYM =
1518 DEFINE_REQ_FMT0("MDS_REINT_CREATE_SYM",
1519 mds_reint_create_sym_client, mdt_body_capa);
1520 EXPORT_SYMBOL(RQF_MDS_REINT_CREATE_SYM);
1522 struct req_format RQF_MDS_REINT_OPEN =
1523 DEFINE_REQ_FMT0("MDS_REINT_OPEN",
1524 mds_reint_open_client, mds_reint_open_server);
1525 EXPORT_SYMBOL(RQF_MDS_REINT_OPEN);
1527 struct req_format RQF_MDS_REINT_UNLINK =
1528 DEFINE_REQ_FMT0("MDS_REINT_UNLINK", mds_reint_unlink_client,
1529 mds_last_unlink_server);
1530 EXPORT_SYMBOL(RQF_MDS_REINT_UNLINK);
1532 struct req_format RQF_MDS_REINT_LINK =
1533 DEFINE_REQ_FMT0("MDS_REINT_LINK",
1534 mds_reint_link_client, mdt_body_only);
1535 EXPORT_SYMBOL(RQF_MDS_REINT_LINK);
1537 struct req_format RQF_MDS_REINT_RENAME =
1538 DEFINE_REQ_FMT0("MDS_REINT_RENAME", mds_reint_rename_client,
1539 mds_last_unlink_server);
1540 EXPORT_SYMBOL(RQF_MDS_REINT_RENAME);
1542 struct req_format RQF_MDS_REINT_MIGRATE =
1543 DEFINE_REQ_FMT0("MDS_REINT_MIGRATE", mds_reint_migrate_client,
1544 mds_last_unlink_server);
1545 EXPORT_SYMBOL(RQF_MDS_REINT_MIGRATE);
1547 struct req_format RQF_MDS_REINT_SETATTR =
1548 DEFINE_REQ_FMT0("MDS_REINT_SETATTR",
1549 mds_reint_setattr_client, mds_setattr_server);
1550 EXPORT_SYMBOL(RQF_MDS_REINT_SETATTR);
1552 struct req_format RQF_MDS_REINT_SETXATTR =
1553 DEFINE_REQ_FMT0("MDS_REINT_SETXATTR",
1554 mds_reint_setxattr_client, mdt_body_only);
1555 EXPORT_SYMBOL(RQF_MDS_REINT_SETXATTR);
1557 struct req_format RQF_MDS_REINT_RESYNC =
1558 DEFINE_REQ_FMT0("MDS_REINT_RESYNC", mds_reint_resync, mdt_body_only);
1559 EXPORT_SYMBOL(RQF_MDS_REINT_RESYNC);
1561 struct req_format RQF_MDS_CONNECT =
1562 DEFINE_REQ_FMT0("MDS_CONNECT",
1563 obd_connect_client, obd_connect_server);
1564 EXPORT_SYMBOL(RQF_MDS_CONNECT);
1566 struct req_format RQF_MDS_DISCONNECT =
1567 DEFINE_REQ_FMT0("MDS_DISCONNECT", empty, empty);
1568 EXPORT_SYMBOL(RQF_MDS_DISCONNECT);
1570 struct req_format RQF_MDS_GET_INFO =
1571 DEFINE_REQ_FMT0("MDS_GET_INFO", mds_getinfo_client,
1572 mds_getinfo_server);
1573 EXPORT_SYMBOL(RQF_MDS_GET_INFO);
1575 struct req_format RQF_MDS_BATCH =
1576 DEFINE_REQ_FMT0("MDS_BATCH", mds_batch_client,
1578 EXPORT_SYMBOL(RQF_MDS_BATCH);
1580 struct req_format RQF_LDLM_ENQUEUE =
1581 DEFINE_REQ_FMT0("LDLM_ENQUEUE",
1582 ldlm_enqueue_client, ldlm_enqueue_lvb_server);
1583 EXPORT_SYMBOL(RQF_LDLM_ENQUEUE);
1585 struct req_format RQF_LDLM_ENQUEUE_LVB =
1586 DEFINE_REQ_FMT0("LDLM_ENQUEUE_LVB",
1587 ldlm_enqueue_client, ldlm_enqueue_lvb_server);
1588 EXPORT_SYMBOL(RQF_LDLM_ENQUEUE_LVB);
1590 struct req_format RQF_LDLM_CONVERT =
1591 DEFINE_REQ_FMT0("LDLM_CONVERT",
1592 ldlm_enqueue_client, ldlm_enqueue_server);
1593 EXPORT_SYMBOL(RQF_LDLM_CONVERT);
1595 struct req_format RQF_LDLM_CANCEL =
1596 DEFINE_REQ_FMT0("LDLM_CANCEL", ldlm_enqueue_client, empty);
1597 EXPORT_SYMBOL(RQF_LDLM_CANCEL);
1599 struct req_format RQF_LDLM_CALLBACK =
1600 DEFINE_REQ_FMT0("LDLM_CALLBACK", ldlm_enqueue_client, empty);
1601 EXPORT_SYMBOL(RQF_LDLM_CALLBACK);
1603 struct req_format RQF_LDLM_CP_CALLBACK =
1604 DEFINE_REQ_FMT0("LDLM_CP_CALLBACK", ldlm_cp_callback_client, empty);
1605 EXPORT_SYMBOL(RQF_LDLM_CP_CALLBACK);
1607 struct req_format RQF_LDLM_BL_CALLBACK =
1608 DEFINE_REQ_FMT0("LDLM_BL_CALLBACK", ldlm_enqueue_client, empty);
1609 EXPORT_SYMBOL(RQF_LDLM_BL_CALLBACK);
1611 struct req_format RQF_LDLM_GL_CALLBACK =
1612 DEFINE_REQ_FMT0("LDLM_GL_CALLBACK", ldlm_enqueue_client,
1613 ldlm_gl_callback_server);
1614 EXPORT_SYMBOL(RQF_LDLM_GL_CALLBACK);
1616 struct req_format RQF_LDLM_GL_CALLBACK_DESC =
1617 DEFINE_REQ_FMT0("LDLM_GL_CALLBACK", ldlm_gl_callback_desc_client,
1618 ldlm_gl_callback_server);
1619 EXPORT_SYMBOL(RQF_LDLM_GL_CALLBACK_DESC);
1621 struct req_format RQF_LDLM_INTENT_BASIC =
1622 DEFINE_REQ_FMT0("LDLM_INTENT_BASIC",
1623 ldlm_intent_basic_client, ldlm_enqueue_lvb_server);
1624 EXPORT_SYMBOL(RQF_LDLM_INTENT_BASIC);
1626 struct req_format RQF_LDLM_INTENT =
1627 DEFINE_REQ_FMT0("LDLM_INTENT",
1628 ldlm_intent_client, ldlm_intent_server);
1629 EXPORT_SYMBOL(RQF_LDLM_INTENT);
1631 struct req_format RQF_LDLM_INTENT_LAYOUT =
1632 DEFINE_REQ_FMT0("LDLM_INTENT_LAYOUT",
1633 ldlm_intent_layout_client, ldlm_enqueue_lvb_server);
1634 EXPORT_SYMBOL(RQF_LDLM_INTENT_LAYOUT);
1636 struct req_format RQF_LDLM_INTENT_GETATTR =
1637 DEFINE_REQ_FMT0("LDLM_INTENT_GETATTR",
1638 ldlm_intent_getattr_client, ldlm_intent_getattr_server);
1639 EXPORT_SYMBOL(RQF_LDLM_INTENT_GETATTR);
1641 struct req_format RQF_LDLM_INTENT_OPEN =
1642 DEFINE_REQ_FMT0("LDLM_INTENT_OPEN",
1643 ldlm_intent_open_client, ldlm_intent_open_server);
1644 EXPORT_SYMBOL(RQF_LDLM_INTENT_OPEN);
1646 struct req_format RQF_LDLM_INTENT_CREATE =
1647 DEFINE_REQ_FMT0("LDLM_INTENT_CREATE",
1648 ldlm_intent_create_client, ldlm_intent_getattr_server);
1649 EXPORT_SYMBOL(RQF_LDLM_INTENT_CREATE);
1651 struct req_format RQF_LDLM_INTENT_GETXATTR =
1652 DEFINE_REQ_FMT0("LDLM_INTENT_GETXATTR",
1653 ldlm_intent_getxattr_client,
1654 ldlm_intent_getxattr_server);
1655 EXPORT_SYMBOL(RQF_LDLM_INTENT_GETXATTR);
1657 struct req_format RQF_MDS_CLOSE =
1658 DEFINE_REQ_FMT0("MDS_CLOSE",
1659 mdt_close_client, mds_last_unlink_server);
1660 EXPORT_SYMBOL(RQF_MDS_CLOSE);
1662 struct req_format RQF_MDS_CLOSE_INTENT =
1663 DEFINE_REQ_FMT0("MDS_CLOSE_INTENT",
1664 mdt_close_intent_client, mds_last_unlink_server);
1665 EXPORT_SYMBOL(RQF_MDS_CLOSE_INTENT);
1667 struct req_format RQF_MDS_READPAGE =
1668 DEFINE_REQ_FMT0("MDS_READPAGE",
1669 mdt_body_capa, mdt_body_only);
1670 EXPORT_SYMBOL(RQF_MDS_READPAGE);
1672 struct req_format RQF_MDS_HSM_ACTION =
1673 DEFINE_REQ_FMT0("MDS_HSM_ACTION", mdt_body_capa, mdt_hsm_action_server);
1674 EXPORT_SYMBOL(RQF_MDS_HSM_ACTION);
1676 struct req_format RQF_MDS_HSM_PROGRESS =
1677 DEFINE_REQ_FMT0("MDS_HSM_PROGRESS", mdt_hsm_progress, empty);
1678 EXPORT_SYMBOL(RQF_MDS_HSM_PROGRESS);
1680 struct req_format RQF_MDS_HSM_CT_REGISTER =
1681 DEFINE_REQ_FMT0("MDS_HSM_CT_REGISTER", mdt_hsm_ct_register, empty);
1682 EXPORT_SYMBOL(RQF_MDS_HSM_CT_REGISTER);
1684 struct req_format RQF_MDS_HSM_CT_UNREGISTER =
1685 DEFINE_REQ_FMT0("MDS_HSM_CT_UNREGISTER", mdt_hsm_ct_unregister, empty);
1686 EXPORT_SYMBOL(RQF_MDS_HSM_CT_UNREGISTER);
1688 struct req_format RQF_MDS_HSM_STATE_GET =
1689 DEFINE_REQ_FMT0("MDS_HSM_STATE_GET",
1690 mdt_body_capa, mdt_hsm_state_get_server);
1691 EXPORT_SYMBOL(RQF_MDS_HSM_STATE_GET);
1693 struct req_format RQF_MDS_HSM_STATE_SET =
1694 DEFINE_REQ_FMT0("MDS_HSM_STATE_SET", mdt_hsm_state_set, empty);
1695 EXPORT_SYMBOL(RQF_MDS_HSM_STATE_SET);
1697 struct req_format RQF_MDS_HSM_REQUEST =
1698 DEFINE_REQ_FMT0("MDS_HSM_REQUEST", mdt_hsm_request, empty);
1699 EXPORT_SYMBOL(RQF_MDS_HSM_REQUEST);
1701 struct req_format RQF_MDS_SWAP_LAYOUTS =
1702 DEFINE_REQ_FMT0("MDS_SWAP_LAYOUTS",
1703 mdt_swap_layouts, empty);
1704 EXPORT_SYMBOL(RQF_MDS_SWAP_LAYOUTS);
1706 struct req_format RQF_MDS_RMFID =
1707 DEFINE_REQ_FMT0("MDS_RMFID", mds_rmfid_client,
1709 EXPORT_SYMBOL(RQF_MDS_RMFID);
1711 struct req_format RQF_LLOG_ORIGIN_HANDLE_CREATE =
1712 DEFINE_REQ_FMT0("LLOG_ORIGIN_HANDLE_CREATE",
1713 llog_origin_handle_create_client, llogd_body_only);
1714 EXPORT_SYMBOL(RQF_LLOG_ORIGIN_HANDLE_CREATE);
1716 struct req_format RQF_LLOG_ORIGIN_HANDLE_NEXT_BLOCK =
1717 DEFINE_REQ_FMT0("LLOG_ORIGIN_HANDLE_NEXT_BLOCK",
1718 llogd_body_only, llog_origin_handle_next_block_server);
1719 EXPORT_SYMBOL(RQF_LLOG_ORIGIN_HANDLE_NEXT_BLOCK);
1721 struct req_format RQF_LLOG_ORIGIN_HANDLE_PREV_BLOCK =
1722 DEFINE_REQ_FMT0("LLOG_ORIGIN_HANDLE_PREV_BLOCK",
1723 llogd_body_only, llog_origin_handle_next_block_server);
1724 EXPORT_SYMBOL(RQF_LLOG_ORIGIN_HANDLE_PREV_BLOCK);
1726 struct req_format RQF_LLOG_ORIGIN_HANDLE_READ_HEADER =
1727 DEFINE_REQ_FMT0("LLOG_ORIGIN_HANDLE_READ_HEADER",
1728 llogd_body_only, llog_log_hdr_only);
1729 EXPORT_SYMBOL(RQF_LLOG_ORIGIN_HANDLE_READ_HEADER);
1731 struct req_format RQF_CONNECT =
1732 DEFINE_REQ_FMT0("CONNECT", obd_connect_client, obd_connect_server);
1733 EXPORT_SYMBOL(RQF_CONNECT);
1735 struct req_format RQF_OST_CONNECT =
1736 DEFINE_REQ_FMT0("OST_CONNECT",
1737 obd_connect_client, obd_connect_server);
1738 EXPORT_SYMBOL(RQF_OST_CONNECT);
1740 struct req_format RQF_OST_DISCONNECT =
1741 DEFINE_REQ_FMT0("OST_DISCONNECT", empty, empty);
1742 EXPORT_SYMBOL(RQF_OST_DISCONNECT);
1744 struct req_format RQF_OST_GETATTR =
1745 DEFINE_REQ_FMT0("OST_GETATTR", ost_body_capa, ost_body_only);
1746 EXPORT_SYMBOL(RQF_OST_GETATTR);
1748 struct req_format RQF_OST_SETATTR =
1749 DEFINE_REQ_FMT0("OST_SETATTR", ost_body_capa, ost_body_only);
1750 EXPORT_SYMBOL(RQF_OST_SETATTR);
1752 struct req_format RQF_OST_CREATE =
1753 DEFINE_REQ_FMT0("OST_CREATE", ost_body_only, ost_body_only);
1754 EXPORT_SYMBOL(RQF_OST_CREATE);
1756 struct req_format RQF_OST_PUNCH =
1757 DEFINE_REQ_FMT0("OST_PUNCH", ost_body_capa, ost_body_only);
1758 EXPORT_SYMBOL(RQF_OST_PUNCH);
1760 struct req_format RQF_OST_FALLOCATE =
1761 DEFINE_REQ_FMT0("OST_FALLOCATE", ost_body_capa, ost_body_only);
1762 EXPORT_SYMBOL(RQF_OST_FALLOCATE);
1764 struct req_format RQF_OST_SEEK =
1765 DEFINE_REQ_FMT0("OST_SEEK", ost_body_only, ost_body_only);
1766 EXPORT_SYMBOL(RQF_OST_SEEK);
1768 struct req_format RQF_OST_SYNC =
1769 DEFINE_REQ_FMT0("OST_SYNC", ost_body_capa, ost_body_only);
1770 EXPORT_SYMBOL(RQF_OST_SYNC);
1772 struct req_format RQF_OST_DESTROY =
1773 DEFINE_REQ_FMT0("OST_DESTROY", ost_destroy_client, ost_body_only);
1774 EXPORT_SYMBOL(RQF_OST_DESTROY);
1776 struct req_format RQF_OST_BRW_READ =
1777 DEFINE_REQ_FMT0("OST_BRW_READ", ost_brw_client, ost_brw_read_server);
1778 EXPORT_SYMBOL(RQF_OST_BRW_READ);
1780 struct req_format RQF_OST_BRW_WRITE =
1781 DEFINE_REQ_FMT0("OST_BRW_WRITE", ost_brw_client, ost_brw_write_server);
1782 EXPORT_SYMBOL(RQF_OST_BRW_WRITE);
1784 struct req_format RQF_OST_STATFS =
1785 DEFINE_REQ_FMT0("OST_STATFS", empty, obd_statfs_server);
1786 EXPORT_SYMBOL(RQF_OST_STATFS);
1788 struct req_format RQF_OST_SET_GRANT_INFO =
1789 DEFINE_REQ_FMT0("OST_SET_GRANT_INFO", ost_grant_shrink_client,
1791 EXPORT_SYMBOL(RQF_OST_SET_GRANT_INFO);
1793 struct req_format RQF_OST_GET_INFO =
1794 DEFINE_REQ_FMT0("OST_GET_INFO", ost_get_info_generic_client,
1795 ost_get_info_generic_server);
1796 EXPORT_SYMBOL(RQF_OST_GET_INFO);
1798 struct req_format RQF_OST_GET_INFO_LAST_ID =
1799 DEFINE_REQ_FMT0("OST_GET_INFO_LAST_ID", ost_get_info_generic_client,
1800 ost_get_last_id_server);
1801 EXPORT_SYMBOL(RQF_OST_GET_INFO_LAST_ID);
1803 struct req_format RQF_OST_GET_INFO_LAST_FID =
1804 DEFINE_REQ_FMT0("OST_GET_INFO_LAST_FID", ost_get_last_fid_client,
1805 ost_get_last_fid_server);
1806 EXPORT_SYMBOL(RQF_OST_GET_INFO_LAST_FID);
1808 struct req_format RQF_OST_SET_INFO_LAST_FID =
1809 DEFINE_REQ_FMT0("OST_SET_INFO_LAST_FID", obd_set_info_client,
1811 EXPORT_SYMBOL(RQF_OST_SET_INFO_LAST_FID);
1813 struct req_format RQF_OST_GET_INFO_FIEMAP =
1814 DEFINE_REQ_FMT0("OST_GET_INFO_FIEMAP", ost_get_fiemap_client,
1815 ost_get_fiemap_server);
1816 EXPORT_SYMBOL(RQF_OST_GET_INFO_FIEMAP);
1818 struct req_format RQF_LFSCK_NOTIFY =
1819 DEFINE_REQ_FMT0("LFSCK_NOTIFY", obd_lfsck_request, empty);
1820 EXPORT_SYMBOL(RQF_LFSCK_NOTIFY);
1822 struct req_format RQF_LFSCK_QUERY =
1823 DEFINE_REQ_FMT0("LFSCK_QUERY", obd_lfsck_request, obd_lfsck_reply);
1824 EXPORT_SYMBOL(RQF_LFSCK_QUERY);
1826 struct req_format RQF_OST_LADVISE =
1827 DEFINE_REQ_FMT0("OST_LADVISE", ost_ladvise, ost_body_only);
1828 EXPORT_SYMBOL(RQF_OST_LADVISE);
1830 struct req_format RQF_BUT_GETATTR =
1831 DEFINE_REQ_FMT0("MDS_BATCH_GETATTR", mds_batch_getattr_client,
1832 mds_batch_getattr_server);
1833 EXPORT_SYMBOL(RQF_BUT_GETATTR);
1835 /* Convenience macro */
1836 #define FMT_FIELD(fmt, i, j) (fmt)->rf_fields[(i)].d[(j)]
1839 * Initializes the capsule abstraction by computing and setting the \a rf_idx
1840 * field of RQFs and the \a rmf_offset field of RMFs.
1842 int req_layout_init(void)
1847 struct req_format *rf = NULL;
1849 for (i = 0; i < ARRAY_SIZE(req_formats); ++i) {
1850 rf = req_formats[i];
1852 for (j = 0; j < RCL_NR; ++j) {
1853 LASSERT(rf->rf_fields[j].nr <= REQ_MAX_FIELD_NR);
1854 for (k = 0; k < rf->rf_fields[j].nr; ++k) {
1855 struct req_msg_field *field;
1857 field = (typeof(field))rf->rf_fields[j].d[k];
1858 LASSERT(!(field->rmf_flags & RMF_F_STRUCT_ARRAY)
1859 || field->rmf_size > 0);
1860 LASSERT(field->rmf_offset[i][j] == 0);
1862 * k + 1 to detect unused format/field
1865 field->rmf_offset[i][j] = k + 1;
1871 EXPORT_SYMBOL(req_layout_init);
1873 void req_layout_fini(void)
1876 EXPORT_SYMBOL(req_layout_fini);
1879 * Initializes the expected sizes of each RMF in a \a pill (\a rc_area) to -1.
1881 * Actual/expected field sizes are set elsewhere in functions in this file:
1882 * req_capsule_init(), req_capsule_server_pack(), req_capsule_set_size() and
1883 * req_capsule_msg_size(). The \a rc_area information is used by.
1884 * ptlrpc_request_set_replen().
1886 void req_capsule_init_area(struct req_capsule *pill)
1890 for (i = 0; i < ARRAY_SIZE(pill->rc_area[RCL_CLIENT]); i++) {
1891 pill->rc_area[RCL_CLIENT][i] = -1;
1892 pill->rc_area[RCL_SERVER][i] = -1;
1895 EXPORT_SYMBOL(req_capsule_init_area);
1898 * Initialize a pill.
1900 * The \a location indicates whether the caller is executing on the client side
1901 * (RCL_CLIENT) or server side (RCL_SERVER)..
1903 void req_capsule_init(struct req_capsule *pill,
1904 struct ptlrpc_request *req,
1905 enum req_location location)
1907 LASSERT(location == RCL_SERVER || location == RCL_CLIENT);
1910 * Today all capsules are embedded in ptlrpc_request structs,
1911 * but just in case that ever isn't the case, we don't reach
1912 * into req unless req != NULL and pill is the one embedded in
1915 * The req->rq_pill_init flag makes it safe to initialize a pill
1916 * twice, which might happen in the OST paths as a result of the
1917 * high-priority RPC queue getting peeked at before ost_handle()
1918 * handles an OST RPC.
1920 if (req != NULL && pill == &req->rq_pill && req->rq_pill_init)
1923 pill->rc_fmt = NULL;
1925 pill->rc_loc = location;
1926 req_capsule_init_area(pill);
1928 if (req != NULL && pill == &req->rq_pill)
1929 req->rq_pill_init = 1;
1931 EXPORT_SYMBOL(req_capsule_init);
1933 void req_capsule_fini(struct req_capsule *pill)
1936 EXPORT_SYMBOL(req_capsule_fini);
1938 static int __req_format_is_sane(const struct req_format *fmt)
1940 return fmt->rf_idx < ARRAY_SIZE(req_formats) &&
1941 req_formats[fmt->rf_idx] == fmt;
1944 static struct lustre_msg *__req_msg(const struct req_capsule *pill,
1945 enum req_location loc)
1947 return loc == RCL_CLIENT ? pill->rc_reqmsg : pill->rc_repmsg;
1951 * Set the format (\a fmt) of a \a pill; format changes are not allowed here
1952 * (see req_capsule_extend()).
1954 void req_capsule_set(struct req_capsule *pill, const struct req_format *fmt)
1956 LASSERT(pill->rc_fmt == NULL || pill->rc_fmt == fmt);
1957 LASSERT(__req_format_is_sane(fmt));
1961 EXPORT_SYMBOL(req_capsule_set);
1964 * Fills in any parts of the \a rc_area of a \a pill that haven't been filled in
1967 * \a rc_area is an array of REQ_MAX_FIELD_NR elements, used to store sizes of
1968 * variable-sized fields. The field sizes come from the declared \a rmf_size
1969 * field of a \a pill's \a rc_fmt's RMF's.
1971 size_t req_capsule_filled_sizes(struct req_capsule *pill,
1972 enum req_location loc)
1974 const struct req_format *fmt = pill->rc_fmt;
1977 LASSERT(fmt != NULL);
1979 for (i = 0; i < fmt->rf_fields[loc].nr; ++i) {
1980 if (pill->rc_area[loc][i] == -1) {
1981 pill->rc_area[loc][i] =
1982 fmt->rf_fields[loc].d[i]->rmf_size;
1983 if (pill->rc_area[loc][i] == -1) {
1985 * Skip the following fields.
1987 * If this LASSERT() trips then you're missing a
1988 * call to req_capsule_set_size().
1990 LASSERT(loc != RCL_SERVER);
1997 EXPORT_SYMBOL(req_capsule_filled_sizes);
2000 * Capsule equivalent of lustre_pack_request() and lustre_pack_reply().
2002 * This function uses the \a pill's \a rc_area as filled in by
2003 * req_capsule_set_size() or req_capsule_filled_sizes() (the latter is called by
2006 int req_capsule_server_pack(struct req_capsule *pill)
2008 const struct req_format *fmt;
2012 LASSERT(pill->rc_loc == RCL_SERVER);
2014 LASSERT(fmt != NULL);
2016 count = req_capsule_filled_sizes(pill, RCL_SERVER);
2017 if (req_capsule_ptlreq(pill)) {
2018 rc = lustre_pack_reply(pill->rc_req, count,
2019 pill->rc_area[RCL_SERVER], NULL);
2021 DEBUG_REQ(D_ERROR, pill->rc_req,
2022 "Cannot pack %d fields in format '%s'",
2023 count, fmt->rf_name);
2025 } else { /* SUB request */
2026 struct ptlrpc_request *req = pill->rc_req;
2030 msg_len = lustre_msg_size_v2(count, pill->rc_area[RCL_SERVER]);
2031 used_len = (char *)pill->rc_repmsg - (char *)req->rq_repmsg;
2032 /* Overflow the reply buffer */
2033 if (used_len + msg_len > req->rq_replen) {
2037 if (!req_capsule_has_field(&req->rq_pill,
2038 &RMF_BUT_REPLY, RCL_SERVER))
2041 if (!req_capsule_field_present(&req->rq_pill,
2046 if (used_len + msg_len > BUT_MAXREPSIZE)
2049 len = req_capsule_get_size(&req->rq_pill,
2050 &RMF_BUT_REPLY, RCL_SERVER);
2052 * Currently just increase the batch reply buffer
2055 max = BUT_MAXREPSIZE - req->rq_replen;
2056 if (used_len + msg_len > len)
2057 len = used_len + msg_len;
2063 rc = req_capsule_server_grow(&req->rq_pill,
2064 &RMF_BUT_REPLY, len);
2069 (struct lustre_msg *)((char *)req->rq_repmsg +
2072 if (msg_len > pill->rc_reqmsg->lm_repsize)
2073 /* TODO: Check whether there is enough buffer size */
2075 "Overflow pack %d fields in format '%s' for "
2076 "the SUB request with message len %u:%u\n",
2077 count, fmt->rf_name, msg_len,
2078 pill->rc_reqmsg->lm_repsize);
2081 lustre_init_msg_v2(pill->rc_repmsg, count,
2082 pill->rc_area[RCL_SERVER], NULL);
2087 EXPORT_SYMBOL(req_capsule_server_pack);
2089 int req_capsule_client_pack(struct req_capsule *pill)
2091 const struct req_format *fmt;
2095 LASSERT(pill->rc_loc == RCL_CLIENT);
2097 LASSERT(fmt != NULL);
2099 count = req_capsule_filled_sizes(pill, RCL_CLIENT);
2100 if (req_capsule_ptlreq(pill)) {
2101 struct ptlrpc_request *req = pill->rc_req;
2103 rc = lustre_pack_request(req, req->rq_import->imp_msg_magic,
2104 count, pill->rc_area[RCL_CLIENT],
2107 /* Sub request in a batch PTLRPC request */
2108 lustre_init_msg_v2(pill->rc_reqmsg, count,
2109 pill->rc_area[RCL_CLIENT], NULL);
2113 EXPORT_SYMBOL(req_capsule_client_pack);
2116 * Returns the PTLRPC request or reply (\a loc) buffer offset of a \a pill
2117 * corresponding to the given RMF (\a field).
2119 __u32 __req_capsule_offset(const struct req_capsule *pill,
2120 const struct req_msg_field *field,
2121 enum req_location loc)
2123 unsigned int offset;
2125 offset = field->rmf_offset[pill->rc_fmt->rf_idx][loc];
2126 LASSERTF(offset > 0, "%s:%s, off=%d, loc=%d\n",
2127 pill->rc_fmt->rf_name,
2128 field->rmf_name, offset, loc);
2131 LASSERT(offset < REQ_MAX_FIELD_NR);
2135 void req_capsule_set_swabbed(struct req_capsule *pill, enum req_location loc,
2138 if (loc == RCL_CLIENT)
2139 req_capsule_set_req_swabbed(pill, index);
2141 req_capsule_set_rep_swabbed(pill, index);
2144 bool req_capsule_need_swab(struct req_capsule *pill, enum req_location loc,
2147 if (loc == RCL_CLIENT)
2148 return (req_capsule_req_need_swab(pill) &&
2149 !req_capsule_req_swabbed(pill, index));
2151 return (req_capsule_rep_need_swab(pill) &&
2152 !req_capsule_rep_swabbed(pill, index));
2156 * Helper for __req_capsule_get(); swabs value / array of values and/or dumps
2160 swabber_dumper_helper(struct req_capsule *pill,
2161 const struct req_msg_field *field,
2162 enum req_location loc,
2164 void *value, int len, bool dump, void (*swabber)(void *))
2172 bool array = field->rmf_flags & RMF_F_STRUCT_ARRAY;
2174 swabber = swabber ?: field->rmf_swabber;
2176 if (req_capsule_need_swab(pill, loc, offset) &&
2177 (swabber != NULL || field->rmf_swab_len != NULL) && value != NULL)
2182 if (!field->rmf_dumper)
2186 * We're swabbing an array; swabber() swabs a single array element, so
2187 * swab every element.
2189 if (array && (len % field->rmf_size)) {
2190 static const struct req_msg_field *last_field;
2192 if (field != last_field) {
2193 CERROR("%s: array buffer size %u is not a multiple of element size %u\n",
2194 field->rmf_name, len, field->rmf_size);
2198 /* For the non-array cases, the process of swab/dump/swab only
2199 * needs to be done once. (n = 1)
2202 len = field->rmf_size;
2203 for (p = value, i = 0, n = len / field->rmf_size;
2205 i++, p += field->rmf_size) {
2207 CDEBUG(D_RPCTRACE, "Dump of %s%sfield %s element %d follows\n",
2208 do_swab ? "unswabbed " : "",
2209 array ? "array " : "",
2210 field->rmf_name, i);
2211 field->rmf_dumper(p);
2219 if (!field->rmf_swab_len) {
2222 size = field->rmf_swab_len(p, len);
2231 CDEBUG(D_RPCTRACE, "Dump of swabbed %sfield %s, element %d follows\n",
2232 array ? "array " : "", field->rmf_name, i);
2233 field->rmf_dumper(value);
2237 req_capsule_set_swabbed(pill, loc, offset);
2243 * Returns the pointer to a PTLRPC request or reply (\a loc) buffer of a \a pill
2244 * corresponding to the given RMF (\a field).
2246 * The buffer will be swabbed using the given \a swabber. If \a swabber == NULL
2247 * then the \a rmf_swabber from the RMF will be used. Soon there will be no
2248 * calls to __req_capsule_get() with a non-NULL \a swabber; \a swabber will then
2249 * be removed. Fields with the \a RMF_F_STRUCT_ARRAY flag set will have each
2250 * element of the array swabbed.
2252 static void *__req_capsule_get(struct req_capsule *pill,
2253 const struct req_msg_field *field,
2254 enum req_location loc,
2255 void (*swabber)(void *),
2258 const struct req_format *fmt;
2259 struct lustre_msg *msg;
2264 void *(*getter)(struct lustre_msg *m, __u32 n, __u32 minlen);
2266 static const char *rcl_names[RCL_NR] = {
2267 [RCL_CLIENT] = "client",
2268 [RCL_SERVER] = "server"
2271 LASSERT(pill != NULL);
2272 LASSERT(pill != LP_POISON);
2274 LASSERT(fmt != NULL);
2275 LASSERT(fmt != LP_POISON);
2276 LASSERT(__req_format_is_sane(fmt));
2278 offset = __req_capsule_offset(pill, field, loc);
2280 msg = __req_msg(pill, loc);
2281 LASSERT(msg != NULL);
2283 getter = (field->rmf_flags & RMF_F_STRING) ?
2284 (typeof(getter))lustre_msg_string : lustre_msg_buf;
2286 if (field->rmf_flags & (RMF_F_STRUCT_ARRAY|RMF_F_NO_SIZE_CHECK)) {
2288 * We've already asserted that field->rmf_size > 0 in
2289 * req_layout_init().
2291 len = lustre_msg_buflen(msg, offset);
2292 if (!(field->rmf_flags & RMF_F_NO_SIZE_CHECK) &&
2293 (len % field->rmf_size) != 0) {
2294 CERROR("%s: array field size mismatch "
2295 "%d modulo %u != 0 (%d)\n",
2296 field->rmf_name, len, field->rmf_size, loc);
2299 } else if (pill->rc_area[loc][offset] != -1) {
2300 len = pill->rc_area[loc][offset];
2302 len = max_t(typeof(field->rmf_size), field->rmf_size, 0);
2304 value = getter(msg, offset, len);
2306 if (value == NULL) {
2307 LASSERT(pill->rc_req != NULL);
2308 DEBUG_REQ(D_ERROR, pill->rc_req,
2309 "Wrong buffer for field '%s' (%u of %u) in format '%s', %u vs. %u (%s)",
2310 field->rmf_name, offset, lustre_msg_bufcount(msg),
2311 fmt->rf_name, lustre_msg_buflen(msg, offset), len,
2314 swabber_dumper_helper(pill, field, loc, offset, value, len,
2322 * Dump a request and/or reply
2324 void __req_capsule_dump(struct req_capsule *pill, enum req_location loc)
2326 const struct req_format *fmt;
2327 const struct req_msg_field *field;
2333 DEBUG_REQ(D_RPCTRACE, pill->rc_req, "BEGIN REQ CAPSULE DUMP");
2334 for (i = 0; i < fmt->rf_fields[loc].nr; ++i) {
2335 field = FMT_FIELD(fmt, loc, i);
2336 if (field->rmf_dumper == NULL) {
2338 * FIXME Add a default hex dumper for fields that don't
2339 * have a specific dumper
2341 len = req_capsule_get_size(pill, field, loc);
2343 "Field %s has no dumper function; field size is %u\n",
2344 field->rmf_name, len);
2346 /* It's dumping side-effect that we're interested in */
2347 (void) __req_capsule_get(pill, field, loc, NULL, true);
2350 CDEBUG(D_RPCTRACE, "END REQ CAPSULE DUMP\n");
2356 void req_capsule_client_dump(struct req_capsule *pill)
2358 __req_capsule_dump(pill, RCL_CLIENT);
2360 EXPORT_SYMBOL(req_capsule_client_dump);
2365 void req_capsule_server_dump(struct req_capsule *pill)
2367 __req_capsule_dump(pill, RCL_SERVER);
2369 EXPORT_SYMBOL(req_capsule_server_dump);
2372 * Trivial wrapper around __req_capsule_get(), that returns the PTLRPC request
2373 * buffer corresponding to the given RMF (\a field) of a \a pill.
2375 void *req_capsule_client_get(struct req_capsule *pill,
2376 const struct req_msg_field *field)
2378 return __req_capsule_get(pill, field, RCL_CLIENT, NULL, false);
2380 EXPORT_SYMBOL(req_capsule_client_get);
2383 * Same as req_capsule_client_get(), but with a \a swabber argument.
2385 * Currently unused; will be removed when req_capsule_server_swab_get() is
2388 void *req_capsule_client_swab_get(struct req_capsule *pill,
2389 const struct req_msg_field *field,
2392 return __req_capsule_get(pill, field, RCL_CLIENT, swabber, false);
2394 EXPORT_SYMBOL(req_capsule_client_swab_get);
2397 * Utility that combines req_capsule_set_size() and req_capsule_client_get().
2399 * First the \a pill's request \a field's size is set (\a rc_area) using
2400 * req_capsule_set_size() with the given \a len. Then the actual buffer is
2403 void *req_capsule_client_sized_get(struct req_capsule *pill,
2404 const struct req_msg_field *field,
2407 req_capsule_set_size(pill, field, RCL_CLIENT, len);
2408 return __req_capsule_get(pill, field, RCL_CLIENT, NULL, false);
2410 EXPORT_SYMBOL(req_capsule_client_sized_get);
2413 * Trivial wrapper around __req_capsule_get(), that returns the PTLRPC reply
2414 * buffer corresponding to the given RMF (\a field) of a \a pill.
2416 void *req_capsule_server_get(struct req_capsule *pill,
2417 const struct req_msg_field *field)
2419 return __req_capsule_get(pill, field, RCL_SERVER, NULL, false);
2421 EXPORT_SYMBOL(req_capsule_server_get);
2424 * Same as req_capsule_server_get(), but with a \a swabber argument.
2426 * Ideally all swabbing should be done pursuant to RMF definitions, with no
2427 * swabbing done outside this capsule abstraction.
2429 void *req_capsule_server_swab_get(struct req_capsule *pill,
2430 const struct req_msg_field *field,
2433 return __req_capsule_get(pill, field, RCL_SERVER, swabber, false);
2435 EXPORT_SYMBOL(req_capsule_server_swab_get);
2438 * Utility that combines req_capsule_set_size() and req_capsule_server_get().
2440 * First the \a pill's request \a field's size is set (\a rc_area) using
2441 * req_capsule_set_size() with the given \a len. Then the actual buffer is
2444 void *req_capsule_server_sized_get(struct req_capsule *pill,
2445 const struct req_msg_field *field,
2448 req_capsule_set_size(pill, field, RCL_SERVER, len);
2449 return __req_capsule_get(pill, field, RCL_SERVER, NULL, false);
2451 EXPORT_SYMBOL(req_capsule_server_sized_get);
2453 void *req_capsule_server_sized_swab_get(struct req_capsule *pill,
2454 const struct req_msg_field *field,
2455 __u32 len, void *swabber)
2457 req_capsule_set_size(pill, field, RCL_SERVER, len);
2458 return __req_capsule_get(pill, field, RCL_SERVER, swabber, false);
2460 EXPORT_SYMBOL(req_capsule_server_sized_swab_get);
2463 * Returns the buffer of a \a pill corresponding to the given \a field from the
2464 * request (if the caller is executing on the server-side) or reply (if the
2465 * caller is executing on the client-side).
2467 * This function convienient for use is code that could be executed on the
2468 * client and server alike.
2470 const void *req_capsule_other_get(struct req_capsule *pill,
2471 const struct req_msg_field *field)
2473 return __req_capsule_get(pill, field, pill->rc_loc ^ 1, NULL, false);
2475 EXPORT_SYMBOL(req_capsule_other_get);
2478 * Set the size of the PTLRPC request/reply (\a loc) buffer for the given \a
2479 * field of the given \a pill.
2481 * This function must be used when constructing variable sized fields of a
2484 void req_capsule_set_size(struct req_capsule *pill,
2485 const struct req_msg_field *field,
2486 enum req_location loc, __u32 size)
2488 LASSERT(loc == RCL_SERVER || loc == RCL_CLIENT);
2490 if ((size != (__u32)field->rmf_size) &&
2491 (field->rmf_size != -1) &&
2492 !(field->rmf_flags & RMF_F_NO_SIZE_CHECK) &&
2494 __u32 rmf_size = (__u32)field->rmf_size;
2495 if ((field->rmf_flags & RMF_F_STRUCT_ARRAY) &&
2496 (size % rmf_size != 0)) {
2497 CERROR("%s: array field size mismatch "
2498 "%u %% %u != 0 (%d)\n",
2499 field->rmf_name, size, rmf_size, loc);
2501 } else if (!(field->rmf_flags & RMF_F_STRUCT_ARRAY) &&
2503 CERROR("%s: field size mismatch %u != %u (%d)\n",
2504 field->rmf_name, size, rmf_size, loc);
2509 pill->rc_area[loc][__req_capsule_offset(pill, field, loc)] = size;
2511 EXPORT_SYMBOL(req_capsule_set_size);
2514 * Return the actual PTLRPC buffer length of a request or reply (\a loc)
2515 * for the given \a pill's given \a field.
2517 * NB: this function doesn't correspond with req_capsule_set_size(), which
2518 * actually sets the size in pill.rc_area[loc][offset], but this function
2519 * returns the message buflen[offset], maybe we should use another name.
2521 __u32 req_capsule_get_size(const struct req_capsule *pill,
2522 const struct req_msg_field *field,
2523 enum req_location loc)
2525 LASSERT(loc == RCL_SERVER || loc == RCL_CLIENT);
2527 return lustre_msg_buflen(__req_msg(pill, loc),
2528 __req_capsule_offset(pill, field, loc));
2530 EXPORT_SYMBOL(req_capsule_get_size);
2533 * Wrapper around lustre_msg_size() that returns the PTLRPC size needed for the
2534 * given \a pill's request or reply (\a loc) given the field size recorded in
2535 * the \a pill's rc_area.
2537 * See also req_capsule_set_size().
2539 __u32 req_capsule_msg_size(struct req_capsule *pill, enum req_location loc)
2541 if (req_capsule_ptlreq(pill)) {
2542 return lustre_msg_size(pill->rc_req->rq_import->imp_msg_magic,
2543 pill->rc_fmt->rf_fields[loc].nr,
2544 pill->rc_area[loc]);
2545 } else { /* SUB request in a batch request */
2548 count = req_capsule_filled_sizes(pill, loc);
2549 return lustre_msg_size_v2(count, pill->rc_area[loc]);
2552 EXPORT_SYMBOL(req_capsule_msg_size);
2555 * While req_capsule_msg_size() computes the size of a PTLRPC request or reply
2556 * (\a loc) given a \a pill's \a rc_area, this function computes the size of a
2557 * PTLRPC request or reply given only an RQF (\a fmt).
2559 * This function should not be used for formats which contain variable size
2562 __u32 req_capsule_fmt_size(__u32 magic, const struct req_format *fmt,
2563 enum req_location loc)
2569 * This function should probably LASSERT() that fmt has no fields with
2570 * RMF_F_STRUCT_ARRAY in rmf_flags, since we can't know here how many
2571 * elements in the array there will ultimately be, but then, we could
2572 * assume that there will be at least one element, and that's just what
2575 size = lustre_msg_hdr_size(magic, fmt->rf_fields[loc].nr);
2579 for (; i < fmt->rf_fields[loc].nr; ++i)
2580 if (fmt->rf_fields[loc].d[i]->rmf_size != -1)
2581 size += cfs_size_round(fmt->rf_fields[loc].d[i]->
2585 EXPORT_SYMBOL(req_capsule_fmt_size);
2588 * Changes the format of an RPC.
2590 * The pill must already have been initialized, which means that it already has
2591 * a request format. The new format \a fmt must be an extension of the pill's
2592 * old format. Specifically: the new format must have as many request and reply
2593 * fields as the old one, and all fields shared by the old and new format must
2594 * be at least as large in the new format.
2596 * The new format's fields may be of different "type" than the old format, but
2597 * only for fields that are "opaque" blobs: fields which have a) have no
2598 * \a rmf_swabber, b) \a rmf_flags == 0 or RMF_F_NO_SIZE_CHECK, and c) \a
2599 * rmf_size == -1 or \a rmf_flags == RMF_F_NO_SIZE_CHECK. For example,
2600 * OBD_SET_INFO has a key field and an opaque value field that gets interpreted
2601 * according to the key field. When the value, according to the key, contains a
2602 * structure (or array thereof) to be swabbed, the format should be changed to
2603 * one where the value field has \a rmf_size/rmf_flags/rmf_swabber set
2606 void req_capsule_extend(struct req_capsule *pill, const struct req_format *fmt)
2611 const struct req_format *old;
2613 LASSERT(pill->rc_fmt != NULL);
2614 LASSERT(__req_format_is_sane(fmt));
2618 * Sanity checking...
2620 for (i = 0; i < RCL_NR; ++i) {
2621 LASSERT(fmt->rf_fields[i].nr >= old->rf_fields[i].nr);
2622 for (j = 0; j < old->rf_fields[i].nr - 1; ++j) {
2623 const struct req_msg_field *ofield = FMT_FIELD(old, i, j);
2625 /* "opaque" fields can be transmogrified */
2626 if (ofield->rmf_swabber == NULL &&
2627 (ofield->rmf_flags & ~RMF_F_NO_SIZE_CHECK) == 0 &&
2628 (ofield->rmf_size == -1 ||
2629 ofield->rmf_flags == RMF_F_NO_SIZE_CHECK))
2631 LASSERT(FMT_FIELD(fmt, i, j) == FMT_FIELD(old, i, j));
2634 * Last field in old format can be shorter than in new.
2636 LASSERT(FMT_FIELD(fmt, i, j)->rmf_size >=
2637 FMT_FIELD(old, i, j)->rmf_size);
2642 EXPORT_SYMBOL(req_capsule_extend);
2645 * This function returns a non-zero value if the given \a field is present in
2646 * the format (\a rc_fmt) of \a pill's PTLRPC request or reply (\a loc), else it
2649 int req_capsule_has_field(const struct req_capsule *pill,
2650 const struct req_msg_field *field,
2651 enum req_location loc)
2653 LASSERT(loc == RCL_SERVER || loc == RCL_CLIENT);
2655 return field->rmf_offset[pill->rc_fmt->rf_idx][loc];
2657 EXPORT_SYMBOL(req_capsule_has_field);
2660 * Returns a non-zero value if the given \a field is present in the given \a
2661 * pill's PTLRPC request or reply (\a loc), else it returns 0.
2663 int req_capsule_field_present(const struct req_capsule *pill,
2664 const struct req_msg_field *field,
2665 enum req_location loc)
2669 LASSERT(loc == RCL_SERVER || loc == RCL_CLIENT);
2670 LASSERT(req_capsule_has_field(pill, field, loc));
2672 offset = __req_capsule_offset(pill, field, loc);
2673 return lustre_msg_bufcount(__req_msg(pill, loc)) > offset;
2675 EXPORT_SYMBOL(req_capsule_field_present);
2678 * This function shrinks the size of the _buffer_ of the \a pill's PTLRPC
2679 * request or reply (\a loc).
2681 * This is not the opposite of req_capsule_extend().
2683 void req_capsule_shrink(struct req_capsule *pill,
2684 const struct req_msg_field *field,
2686 enum req_location loc)
2688 const struct req_format *fmt;
2689 struct lustre_msg *msg;
2694 LASSERT(fmt != NULL);
2695 LASSERT(__req_format_is_sane(fmt));
2696 LASSERT(req_capsule_has_field(pill, field, loc));
2697 LASSERT(req_capsule_field_present(pill, field, loc));
2699 offset = __req_capsule_offset(pill, field, loc);
2701 msg = __req_msg(pill, loc);
2702 len = lustre_msg_buflen(msg, offset);
2703 LASSERTF(newlen <= len, "%s:%s, oldlen=%u, newlen=%u\n",
2704 fmt->rf_name, field->rmf_name, len, newlen);
2706 len = lustre_shrink_msg(msg, offset, newlen, 1);
2707 if (loc == RCL_CLIENT) {
2708 if (req_capsule_ptlreq(pill))
2709 pill->rc_req->rq_reqlen = len;
2711 /* update also field size in reply lenghts arrays for possible
2712 * reply re-pack due to req_capsule_server_grow() call.
2714 req_capsule_set_size(pill, field, loc, newlen);
2715 if (req_capsule_ptlreq(pill))
2716 pill->rc_req->rq_replen = len;
2719 EXPORT_SYMBOL(req_capsule_shrink);
2721 int req_capsule_server_grow(struct req_capsule *pill,
2722 const struct req_msg_field *field,
2725 struct ptlrpc_request *req = pill->rc_req;
2726 struct ptlrpc_reply_state *rs = req->rq_reply_state, *nrs;
2727 char *from, *to, *sptr = NULL;
2728 __u32 slen = 0, snewlen = 0;
2729 __u32 offset, len, max, diff;
2732 LASSERT(pill->rc_fmt != NULL);
2733 LASSERT(__req_format_is_sane(pill->rc_fmt));
2734 LASSERT(req_capsule_has_field(pill, field, RCL_SERVER));
2735 LASSERT(req_capsule_field_present(pill, field, RCL_SERVER));
2737 if (req_capsule_subreq(pill)) {
2738 if (!req_capsule_has_field(&req->rq_pill, &RMF_BUT_REPLY,
2742 if (!req_capsule_field_present(&req->rq_pill, &RMF_BUT_REPLY,
2746 len = req_capsule_get_size(&req->rq_pill, &RMF_BUT_REPLY,
2748 sptr = req_capsule_server_get(&req->rq_pill, &RMF_BUT_REPLY);
2749 slen = req_capsule_get_size(pill, field, RCL_SERVER);
2751 LASSERT(len >= (char *)pill->rc_repmsg - sptr +
2752 lustre_packed_msg_size(pill->rc_repmsg));
2753 if (len >= (char *)pill->rc_repmsg - sptr +
2754 lustre_packed_msg_size(pill->rc_repmsg) - slen +
2756 req_capsule_set_size(pill, field, RCL_SERVER, newlen);
2757 offset = __req_capsule_offset(pill, field, RCL_SERVER);
2758 lustre_grow_msg(pill->rc_repmsg, offset, newlen);
2763 * Currently first try to increase the reply buffer by
2764 * 2 * newlen with reply buffer limit of BUT_MAXREPSIZE.
2765 * TODO: Enlarge the reply buffer properly according to the
2766 * left SUB requests in the batch PTLRPC request.
2769 diff = snewlen - slen;
2770 max = BUT_MAXREPSIZE - req->rq_replen;
2774 if (diff * 2 + len < max)
2775 newlen = (len + diff) * 2;
2779 req_capsule_set_size(pill, field, RCL_SERVER, snewlen);
2780 req_capsule_set_size(&req->rq_pill, &RMF_BUT_REPLY, RCL_SERVER,
2782 offset = __req_capsule_offset(&req->rq_pill, &RMF_BUT_REPLY,
2785 len = req_capsule_get_size(pill, field, RCL_SERVER);
2786 offset = __req_capsule_offset(pill, field, RCL_SERVER);
2787 req_capsule_set_size(pill, field, RCL_SERVER, newlen);
2790 CDEBUG(D_INFO, "Reply packed: %d, allocated: %d, field len %d -> %d\n",
2791 lustre_packed_msg_size(rs->rs_msg), rs->rs_repbuf_len,
2795 * There can be enough space in current reply buffer, make sure
2796 * that rs_repbuf is not a wrapper but real reply msg, otherwise
2797 * re-packing is still needed.
2799 if (rs->rs_msg == rs->rs_repbuf &&
2800 rs->rs_repbuf_len >=
2801 lustre_packed_msg_size(rs->rs_msg) - len + newlen) {
2802 req->rq_replen = lustre_grow_msg(rs->rs_msg, offset, newlen);
2806 /* Re-allocate replay state */
2807 req->rq_reply_state = NULL;
2808 rc = req_capsule_server_pack(&req->rq_pill);
2810 /* put old values back, the caller should decide what to do */
2811 if (req_capsule_subreq(pill)) {
2812 req_capsule_set_size(&req->rq_pill, &RMF_BUT_REPLY,
2814 req_capsule_set_size(pill, field, RCL_SERVER, slen);
2816 req_capsule_set_size(pill, field, RCL_SERVER, len);
2818 pill->rc_req->rq_reply_state = rs;
2821 nrs = req->rq_reply_state;
2822 LASSERT(lustre_packed_msg_size(nrs->rs_msg) >
2823 lustre_packed_msg_size(rs->rs_msg));
2825 /* Now we need only buffers, copy them and grow the needed one */
2826 to = lustre_msg_buf(nrs->rs_msg, 0, 0);
2827 from = lustre_msg_buf(rs->rs_msg, 0, 0);
2829 (char *)rs->rs_msg + lustre_packed_msg_size(rs->rs_msg) - from);
2830 lustre_msg_set_buflen(nrs->rs_msg, offset, len);
2831 req->rq_replen = lustre_grow_msg(nrs->rs_msg, offset, newlen);
2833 if (req_capsule_subreq(pill)) {
2836 ptr = req_capsule_server_get(&req->rq_pill, &RMF_BUT_REPLY);
2837 pill->rc_repmsg = (struct lustre_msg *)(ptr +
2838 ((char *)pill->rc_repmsg - sptr));
2839 offset = __req_capsule_offset(pill, field, RCL_SERVER);
2840 lustre_grow_msg(pill->rc_repmsg, offset, snewlen);
2843 if (rs->rs_difficult) {
2847 nrs->rs_difficult = 1;
2848 nrs->rs_no_ack = rs->rs_no_ack;
2849 nrs->rs_convert_lock = rs->rs_convert_lock;
2850 for (i = 0; i < rs->rs_nlocks; i++) {
2851 nrs->rs_locks[i] = rs->rs_locks[i];
2852 nrs->rs_modes[i] = rs->rs_modes[i];
2856 rs->rs_difficult = 0;
2859 ptlrpc_rs_decref(rs);
2862 EXPORT_SYMBOL(req_capsule_server_grow);
2864 #ifdef HAVE_SERVER_SUPPORT
2865 static const struct req_msg_field *mds_update_client[] = {
2867 &RMF_OUT_UPDATE_HEADER,
2868 &RMF_OUT_UPDATE_BUF,
2871 static const struct req_msg_field *mds_update_server[] = {
2873 &RMF_OUT_UPDATE_REPLY,
2876 struct req_msg_field RMF_OUT_UPDATE = DEFINE_MSGFL("object_update", 0, -1,
2877 lustre_swab_object_update_request, NULL);
2878 EXPORT_SYMBOL(RMF_OUT_UPDATE);
2880 struct req_msg_field RMF_OUT_UPDATE_REPLY =
2881 DEFINE_MSGFL("object_update_reply", 0, -1,
2882 lustre_swab_object_update_reply, NULL);
2883 EXPORT_SYMBOL(RMF_OUT_UPDATE_REPLY);
2885 struct req_msg_field RMF_OUT_UPDATE_HEADER = DEFINE_MSGF("out_update_header", 0,
2886 -1, lustre_swab_out_update_header, NULL);
2887 EXPORT_SYMBOL(RMF_OUT_UPDATE_HEADER);
2889 struct req_msg_field RMF_OUT_UPDATE_BUF = DEFINE_MSGF("update_buf",
2890 RMF_F_STRUCT_ARRAY, sizeof(struct out_update_buffer),
2891 lustre_swab_out_update_buffer, NULL);
2892 EXPORT_SYMBOL(RMF_OUT_UPDATE_BUF);
2894 struct req_format RQF_OUT_UPDATE =
2895 DEFINE_REQ_FMT0("OUT_UPDATE", mds_update_client,
2897 EXPORT_SYMBOL(RQF_OUT_UPDATE);
2899 int req_check_sepol(struct req_capsule *pill)
2902 struct obd_export *export;
2903 struct lu_nodemap *nm = NULL;
2904 const char *sepol = NULL;
2905 const char *nm_sepol = NULL;
2907 if (req_capsule_subreq(pill))
2913 export = pill->rc_req->rq_export;
2914 if (!export || !exp_connect_sepol(export) ||
2915 !req_capsule_has_field(pill, &RMF_SELINUX_POL, RCL_CLIENT))
2918 if (req_capsule_get_size(pill, &RMF_SELINUX_POL, RCL_CLIENT) == 0)
2921 sepol = req_capsule_client_get(pill, &RMF_SELINUX_POL);
2922 CDEBUG(D_SEC, "retrieved sepol %s\n", sepol);
2926 nm = nodemap_get_from_exp(export);
2927 if (!IS_ERR_OR_NULL(nm)) {
2928 nm_sepol = nodemap_get_sepol(nm);
2929 if (nm_sepol && nm_sepol[0])
2930 if (sepol == NULL ||
2931 strcmp(sepol, nm_sepol) != 0)
2936 if (!IS_ERR_OR_NULL(nm))
2941 EXPORT_SYMBOL(req_check_sepol);
2944 void req_capsule_subreq_init(struct req_capsule *pill,
2945 const struct req_format *fmt,
2946 struct ptlrpc_request *req,
2947 struct lustre_msg *reqmsg,
2948 struct lustre_msg *repmsg,
2949 enum req_location loc)
2951 req_capsule_init(pill, req, loc);
2952 req_capsule_set(pill, fmt);
2953 pill->rc_reqmsg = reqmsg;
2954 pill->rc_repmsg = repmsg;
2956 EXPORT_SYMBOL(req_capsule_subreq_init);
2958 void req_capsule_set_replen(struct req_capsule *pill)
2960 if (req_capsule_ptlreq(pill)) {
2961 ptlrpc_request_set_replen(pill->rc_req);
2962 } else { /* SUB request in a batch request */
2965 count = req_capsule_filled_sizes(pill, RCL_SERVER);
2966 pill->rc_reqmsg->lm_repsize =
2967 lustre_msg_size_v2(count,
2968 pill->rc_area[RCL_SERVER]);
2971 EXPORT_SYMBOL(req_capsule_set_replen);