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[fs/lustre-release.git] / lustre / obdclass / obd_mount.c
index 5c24bf1..ee12d1d 100644 (file)
@@ -45,7 +45,7 @@ static void (*kill_super_cb)(struct super_block *sb) = NULL;
 /*********** mount lookup *********/
 
 DECLARE_MUTEX(lustre_mount_info_lock);
-struct list_head server_mount_info_list = LIST_HEAD_INIT(server_mount_info_list);
+static CFS_LIST_HEAD(server_mount_info_list);
 
 static struct lustre_mount_info *server_find_mount(const char *name)
 {
@@ -721,9 +721,13 @@ static int lustre_start_mgc(struct super_block *sb)
                                 sizeof(recov_bk), &recov_bk, NULL);
         if (rc)
                 /* nonfatal */
-                CERROR("can't set %s %d\n", KEY_INIT_RECOV_BACKUP, rc);
+                CWARN("can't set %s %d\n", KEY_INIT_RECOV_BACKUP, rc);
         /* We connect to the MGS at setup, and don't disconnect until cleanup */
-        rc = obd_connect(NULL, &mgc_conn, obd, &(obd->obd_uuid), &ocd);
+
+        ocd.ocd_connect_flags = OBD_CONNECT_VERSION | OBD_CONNECT_FID;
+        ocd.ocd_version = LUSTRE_VERSION_CODE;
+
+        rc = obd_connect(NULL, &mgc_conn, obd, &(obd->obd_uuid), &ocd, NULL);
         if (rc) {
                 CERROR("connect failed %d\n", rc);
                 GOTO(out, rc);
@@ -759,8 +763,8 @@ static int lustre_stop_mgc(struct super_block *sb)
         obd = lsi->lsi_mgc;
         if (!obd)
                 RETURN(-ENOENT);
-
         lsi->lsi_mgc = NULL;
+
         mutex_down(&mgc_start_lock);
         if (!atomic_dec_and_test(&obd->u.cli.cl_mgc_refcount)) {
                 /* This is not fatal, every client that stops
@@ -770,13 +774,17 @@ static int lustre_stop_mgc(struct super_block *sb)
                 GOTO(out, rc = -EBUSY);
         }
 
-        /* MGC should disconnect nicely so MGS won't print eviction messages */
-        obd->obd_force = (lsi->lsi_flags & LSI_UMOUNT_FORCE) != 0;
-        /* The MGC has no recoverable data in any case. */
+        /* The MGC has no recoverable data in any case. 
+         * force shotdown set in umount_begin */
         obd->obd_no_recov = 1;
 
-        if (obd->u.cli.cl_mgc_mgsexp)
-                obd_disconnect(obd->u.cli.cl_mgc_mgsexp);
+        if (obd->u.cli.cl_mgc_mgsexp) {
+                /* An error is not fatal, if we are unable to send the
+                   disconnect mgs ping evictor cleans up the export */
+                rc = obd_disconnect(obd->u.cli.cl_mgc_mgsexp);
+                if (rc)
+                        CDEBUG(D_MOUNT, "disconnect failed %d\n", rc);
+        }
 
         /* Save the obdname for cleaning the nid uuids, which are
            obdname_XX */
@@ -894,81 +902,10 @@ int server_mti_print(char *title, struct mgs_target_info *mti)
         return(0);
 }
 
-static
-int mti_set_sec_opts(struct mgs_target_info *mti, struct lustre_mount_data *lmd)
-{
-        char *s1, *s2;
-
-        if (lmd->lmd_sec_mdt == NULL && lmd->lmd_sec_cli == NULL) {
-                /* just let on-disk params do its work. but we have an
-                 * assumption that any changes of on-disk data by tune2fs
-                 * should lead to server rewrite log.
-                 */
-                return 0;
-        }
-
-        /* filter out existing sec options */
-        s1 = mti->mti_params;
-        while (*s1) {
-                int clear;
-
-                while (*s1 == ' ')
-                        s1++;
-
-                if (strncmp(s1, PARAM_SEC_RPC_MDT,
-                            sizeof(PARAM_SEC_RPC_MDT) - 1) == 0 ||
-                    strncmp(s1, PARAM_SEC_RPC_CLI,
-                            sizeof(PARAM_SEC_RPC_CLI) - 1) == 0)
-                        clear = 1;
-                else
-                        clear = 0;
-
-                s2 = strchr(s1, ' ');
-                if (s2 == NULL) {
-                        if (clear)
-                                *s1 = '\0';
-                        break;
-                }
-                s2++;
-                if (clear)
-                        memmove(s1, s2, strlen(s2) + 1);
-                else
-                        s1 = s2;
-        }
-
-        /* append sec options from lmd */
-        /* FIXME add flag LDD_F_UPDATE after mountconf start supporting
-         * log updating.
-         */
-        if (lmd->lmd_sec_mdt) {
-                if (strlen(mti->mti_params) + strlen(lmd->lmd_sec_mdt) +
-                    sizeof(PARAM_SEC_RPC_MDT) + 1 >= sizeof(mti->mti_params)) {
-                        CERROR("security params too big for mti\n");
-                        return -ENOMEM;
-                }
-                strcat(mti->mti_params, " "PARAM_SEC_RPC_MDT);
-                strcat(mti->mti_params, lmd->lmd_sec_mdt);
-                //mti->mti_flags |= LDD_F_UPDATE;
-        }
-        if (lmd->lmd_sec_cli) {
-                if (strlen(mti->mti_params) + strlen(lmd->lmd_sec_cli) +
-                    sizeof(PARAM_SEC_RPC_CLI) + 2 > sizeof(mti->mti_params)) {
-                        CERROR("security params too big for mti\n");
-                        return -ENOMEM;
-                }
-                strcat(mti->mti_params, " "PARAM_SEC_RPC_CLI);
-                strcat(mti->mti_params, lmd->lmd_sec_cli);
-                //mti->mti_flags |= LDD_F_UPDATE;
-        }
-
-        return 0;
-}
-
 static int server_sb2mti(struct super_block *sb, struct mgs_target_info *mti)
 {
         struct lustre_sb_info    *lsi = s2lsi(sb);
         struct lustre_disk_data  *ldd = lsi->lsi_ldd;
-        struct lustre_mount_data *lmd = lsi->lsi_lmd;
         lnet_process_id_t         id;
         int i = 0;
         ENTRY;
@@ -1004,8 +941,7 @@ static int server_sb2mti(struct super_block *sb, struct mgs_target_info *mti)
                 RETURN(-ENOMEM);
         }
         memcpy(mti->mti_params, ldd->ldd_params, sizeof(mti->mti_params));
-
-        RETURN(mti_set_sec_opts(mti, lmd));
+        RETURN(0);
 }
 
 /* Register an old or new target with the MGS. If needed MGS will construct
@@ -1041,10 +977,8 @@ int server_register_target(struct super_block *sb)
         rc = obd_set_info_async(mgc->u.cli.cl_mgc_mgsexp,
                                 strlen("register_target"), "register_target",
                                 sizeof(*mti), mti, NULL);
-        if (rc) {
-                CERROR("registration with the MGS failed (%d)\n", rc);
+        if (rc)
                 GOTO(out, rc);
-        }
 
         /* Always update our flags */
         ldd->ldd_flags = mti->mti_flags & ~LDD_F_REWRITE_LDD;
@@ -1157,6 +1091,9 @@ static int server_start_targets(struct super_block *sb, struct vfsmount *mnt)
                                    lsi->lsi_ldd->ldd_svname);
                 GOTO(out_mgc, rc);
         }
+        /* non-fatal error of registeration with MGS */
+        if (rc)
+                CDEBUG(D_MOUNT, "Cannot register with MGS: %d\n", rc);
 
         /* Let the target look up the mount using the target's name
            (we can't pass the sb or mnt through class_process_config.) */
@@ -1222,8 +1159,6 @@ struct lustre_sb_info *lustre_init_lsi(struct super_block *sb)
         /* Default umount style */
         lsi->lsi_flags = LSI_UMOUNT_FAILOVER;
 
-        lsi->lsi_lmd->lmd_nllu = NOBODY_UID;
-        lsi->lsi_lmd->lmd_nllg = NOBODY_GID;
         RETURN(lsi);
 }
 
@@ -1250,12 +1185,6 @@ static int lustre_free_lsi(struct super_block *sb)
                 if (lsi->lsi_lmd->lmd_profile != NULL)
                         OBD_FREE(lsi->lsi_lmd->lmd_profile,
                                  strlen(lsi->lsi_lmd->lmd_profile) + 1);
-                if (lsi->lsi_lmd->lmd_sec_mdt != NULL)
-                        OBD_FREE(lsi->lsi_lmd->lmd_sec_mdt,
-                                 strlen(lsi->lsi_lmd->lmd_sec_mdt) + 1);
-                if (lsi->lsi_lmd->lmd_sec_cli != NULL)
-                        OBD_FREE(lsi->lsi_lmd->lmd_sec_cli,
-                                 strlen(lsi->lsi_lmd->lmd_sec_cli) + 1);
                 if (lsi->lsi_lmd->lmd_opts != NULL)
                         OBD_FREE(lsi->lsi_lmd->lmd_opts,
                                  strlen(lsi->lsi_lmd->lmd_opts) + 1);
@@ -1428,7 +1357,8 @@ static void server_put_super(struct super_block *sb)
         CDEBUG(D_MOUNT, "server put_super %s\n", tmpname);
 
         /* Stop the target */
-        if (IS_MDT(lsi->lsi_ldd) || IS_OST(lsi->lsi_ldd)) {
+        if (!(lsi->lsi_lmd->lmd_flags & LMD_FLG_NOSVC) && 
+            (IS_MDT(lsi->lsi_ldd) || IS_OST(lsi->lsi_ldd))) {
                 struct lustre_profile *lprof = NULL;
 
                 /* tell the mgc to drop the config log */
@@ -1446,12 +1376,10 @@ static void server_put_super(struct super_block *sb)
                 obd = class_name2obd(lsi->lsi_ldd->ldd_svname);
                 if (obd) {
                         CDEBUG(D_MOUNT, "stopping %s\n", obd->obd_name);
-                        if (lsi->lsi_flags & LSI_UMOUNT_FORCE)
-                                obd->obd_force = 1;
                         if (lsi->lsi_flags & LSI_UMOUNT_FAILOVER)
                                 obd->obd_fail = 1;
                         /* We can't seem to give an error return code
-                           to .put_super, so we better make sure we clean up! */
+                         * to .put_super, so we better make sure we clean up! */
                         obd->obd_force = 1;
                         class_manual_cleanup(obd);
                 } else {
@@ -1466,7 +1394,9 @@ static void server_put_super(struct super_block *sb)
                 /* stop the mgc before the mgs so the connection gets cleaned
                    up */
                 lustre_stop_mgc(sb);
-                server_stop_mgs(sb);
+                /* if MDS start with --nomgs, don't stop MGS then */
+                if (!(lsi->lsi_lmd->lmd_flags & LMD_FLG_NOMGS))
+                        server_stop_mgs(sb);
         }
 
         /* Clean the mgc and sb */
@@ -1642,7 +1572,7 @@ static int server_fill_super(struct super_block *sb)
         }
 
         /* start MGS before MGC */
-        if (IS_MGS(lsi->lsi_ldd)) {
+        if (IS_MGS(lsi->lsi_ldd) && !(lsi->lsi_lmd->lmd_flags & LMD_FLG_NOMGS)) {
                 rc = server_start_mgs(sb);
                 if (rc)
                         GOTO(out_mnt, rc);
@@ -1746,10 +1676,6 @@ static void lmd_print(struct lustre_mount_data *lmd)
                 PRINT_CMD(PRINT_MASK, "profile: %s\n", lmd->lmd_profile);
         PRINT_CMD(PRINT_MASK, "device:  %s\n", lmd->lmd_dev);
         PRINT_CMD(PRINT_MASK, "flags:   %x\n", lmd->lmd_flags);
-        if (lmd->lmd_sec_mdt)
-                PRINT_CMD(PRINT_MASK, "sec_mdt: %s\n", lmd->lmd_sec_mdt);
-        if (lmd->lmd_sec_cli)
-                PRINT_CMD(PRINT_MASK, "sec_cli: %s\n", lmd->lmd_sec_cli);
         if (lmd->lmd_opts)
                 PRINT_CMD(PRINT_MASK, "options: %s\n", lmd->lmd_opts);
         for (i = 0; i < lmd->lmd_exclude_count; i++) {
@@ -1840,66 +1766,6 @@ static int lmd_make_exclusion(struct lustre_mount_data *lmd, char *ptr)
         RETURN(rc);
 }
 
-static
-int lmd_set_sec_opts(char **set, char *opts, int length)
-{
-        if (*set)
-                OBD_FREE(*set, strlen(*set) + 1);
-
-        OBD_ALLOC(*set, length + 1);
-        if (*set == NULL)
-                return -ENOMEM;
-
-        memcpy(*set, opts, length);
-        (*set)[length] = '\0';
-
-        return 0;
-}
-
-static
-int lmd_parse_sec_opts(struct lustre_mount_data *lmd, char *ptr)
-{
-        char  *tail;
-        char **set = NULL;
-        int    length;
-
-        /* check peer name */
-        if (strncmp(ptr, "sec_mdt=", 8) == 0) {
-                set = &lmd->lmd_sec_mdt;
-                ptr += 8;
-        } else if (strncmp(ptr, "sec_cli=", 8) == 0) {
-                set = &lmd->lmd_sec_cli;
-                ptr += 8;
-        } else if (strncmp(ptr, "sec=", 4) == 0) {
-                /* leave 'set' be null */
-                ptr += 4;
-        } else {
-                CERROR("invalid security options: %s\n", ptr);
-                return -EINVAL;
-        }
-
-        tail = strchr(ptr, ',');
-        if (tail == NULL)
-                length = strlen(ptr);
-        else
-                length = tail - ptr;
-
-        if (set) {
-                if (lmd_set_sec_opts(set, ptr, length))
-                        return -EINVAL;
-        } else {
-                if (lmd->lmd_sec_mdt == NULL &&
-                    lmd_set_sec_opts(&lmd->lmd_sec_mdt, ptr, length))
-                        return -EINVAL;
-
-                if (lmd->lmd_sec_cli == NULL &&
-                    lmd_set_sec_opts(&lmd->lmd_sec_cli, ptr, length))
-                        return -EINVAL;
-        }
-
-        return 0;
-}
-
 /* mount -v -t lustre uml1:uml2:/lustre-client /mnt/lustre */
 static int lmd_parse(char *options, struct lustre_mount_data *lmd)
 {
@@ -1944,23 +1810,15 @@ static int lmd_parse(char *options, struct lustre_mount_data *lmd)
                 } else if (strncmp(s1, "nosvc", 5) == 0) {
                         lmd->lmd_flags |= LMD_FLG_NOSVC;
                         clear++;
+                } else if (strncmp(s1, "nomgs", 5) == 0) {
+                        lmd->lmd_flags |= LMD_FLG_NOMGS;
+                        clear++;
                 /* ost exclusion list */
                 } else if (strncmp(s1, "exclude=", 8) == 0) {
                         rc = lmd_make_exclusion(lmd, s1 + 7);
                         if (rc)
                                 goto invalid;
                         clear++;
-                } else if (strncmp(s1, "nllu=", 5) == 0) {
-                        lmd->lmd_nllu = simple_strtoul(s1 + 5, NULL, 10);
-                        clear++;
-                } else if (strncmp(s1, "nllg=", 5) == 0) {
-                        lmd->lmd_nllg = simple_strtoul(s1 + 5, NULL, 10);
-                        clear++;
-                } else if (strncmp(s1, "sec", 3) == 0) {
-                        rc = lmd_parse_sec_opts(lmd, s1);
-                        if (rc)
-                                goto invalid;
-                        clear++;
                 }
                 /* Linux 2.4 doesn't pass the device, so we stuck it at the
                    end of the options. */
@@ -2142,7 +2000,8 @@ struct file_system_type lustre_fs_type = {
         .name         = "lustre",
         .get_sb       = lustre_get_sb,
         .kill_sb      = lustre_kill_super,
-        .fs_flags     = FS_BINARY_MOUNTDATA | FS_REQUIRES_DEV,
+        .fs_flags     = FS_BINARY_MOUNTDATA | FS_REQUIRES_DEV |
+                        LL_RENAME_DOES_D_MOVE,
 };
 
 int lustre_register_fs(void)