}
EXPORT_SYMBOL(server_put_mount_2);
-/******* mount helper utilities *********/
-
-#if 0
-static void ldd_print(struct lustre_disk_data *ldd)
-{
- PRINT_CMD(PRINT_MASK, " disk data:\n");
- PRINT_CMD(PRINT_MASK, "server: %s\n", ldd->ldd_svname);
- PRINT_CMD(PRINT_MASK, "uuid: %s\n", (char *)ldd->ldd_uuid);
- PRINT_CMD(PRINT_MASK, "fs: %s\n", ldd->ldd_fsname);
- PRINT_CMD(PRINT_MASK, "index: %04x\n", ldd->ldd_svindex);
- PRINT_CMD(PRINT_MASK, "config: %d\n", ldd->ldd_config_ver);
- PRINT_CMD(PRINT_MASK, "flags: %#x\n", ldd->ldd_flags);
- PRINT_CMD(PRINT_MASK, "diskfs: %s\n", MT_STR(ldd));
- PRINT_CMD(PRINT_MASK, "options: %s\n", ldd->ldd_mount_opts);
- PRINT_CMD(PRINT_MASK, "params: %s\n", ldd->ldd_params);
- PRINT_CMD(PRINT_MASK, "comment: %s\n", ldd->ldd_userdata);
-}
-#endif
-
-static int ldd_parse(struct lvfs_run_ctxt *mount_ctxt,
- struct lustre_disk_data *ldd)
-{
- struct lvfs_run_ctxt saved;
- struct file *file;
- loff_t off = 0;
- unsigned long len;
- int rc;
- ENTRY;
-
- push_ctxt(&saved, mount_ctxt, NULL);
-
- file = filp_open(MOUNT_DATA_FILE, O_RDONLY, 0644);
- if (IS_ERR(file)) {
- rc = PTR_ERR(file);
- CERROR("cannot open %s: rc = %d\n", MOUNT_DATA_FILE, rc);
- GOTO(out, rc);
- }
-
- len = i_size_read(file->f_dentry->d_inode);
- CDEBUG(D_MOUNT, "Have %s, size %lu\n", MOUNT_DATA_FILE, len);
- if (len != sizeof(*ldd)) {
- CERROR("disk data size does not match: see %lu expect %u\n",
- len, (int)sizeof(*ldd));
- GOTO(out_close, rc = -EINVAL);
- }
-
- rc = lustre_fread(file, ldd, len, &off);
- if (rc != len) {
- CERROR("error reading %s: read %d of %lu\n",
- MOUNT_DATA_FILE, rc, len);
- GOTO(out_close, rc = -EINVAL);
- }
- rc = 0;
-
- if (ldd->ldd_magic != LDD_MAGIC) {
- /* FIXME add swabbing support */
- CERROR("Bad magic in %s: %x!=%x\n", MOUNT_DATA_FILE,
- ldd->ldd_magic, LDD_MAGIC);
- GOTO(out_close, rc = -EINVAL);
- }
-
- if (ldd->ldd_feature_incompat & ~LDD_INCOMPAT_SUPP) {
- CERROR("%s: unsupported incompat filesystem feature(s) %x\n",
- ldd->ldd_svname,
- ldd->ldd_feature_incompat & ~LDD_INCOMPAT_SUPP);
- GOTO(out_close, rc = -EINVAL);
- }
- if (ldd->ldd_feature_rocompat & ~LDD_ROCOMPAT_SUPP) {
- CERROR("%s: unsupported read-only filesystem feature(s) %x\n",
- ldd->ldd_svname,
- ldd->ldd_feature_rocompat & ~LDD_ROCOMPAT_SUPP);
- /* Do something like remount filesystem read-only */
- GOTO(out_close, rc = -EINVAL);
- }
-
- /* svname of the form lustre:OST1234 means never registered */
- rc = strlen(ldd->ldd_svname);
- if (ldd->ldd_svname[rc - 8] == ':') {
- ldd->ldd_svname[rc - 8] = '-';
- ldd->ldd_flags |= LDD_F_VIRGIN;
- }
- rc = 0;
-
-out_close:
- filp_close(file, 0);
-out:
- pop_ctxt(&saved, mount_ctxt, NULL);
- RETURN(rc);
-}
-
-static int ldd_write(struct lvfs_run_ctxt *mount_ctxt,
- struct lustre_disk_data *ldd)
-{
- struct lvfs_run_ctxt saved;
- struct file *file;
- loff_t off = 0;
- unsigned long len = sizeof(struct lustre_disk_data);
- int rc = 0;
- ENTRY;
-
- if (ldd->ldd_magic == 0)
- RETURN(0);
-
- LASSERT(ldd->ldd_magic == LDD_MAGIC);
-
- ldd->ldd_config_ver++;
-
- push_ctxt(&saved, mount_ctxt, NULL);
-
- file = filp_open(MOUNT_DATA_FILE, O_RDWR|O_SYNC, 0644);
- if (IS_ERR(file)) {
- rc = PTR_ERR(file);
- CERROR("cannot open %s: rc = %d\n", MOUNT_DATA_FILE, rc);
- GOTO(out, rc);
- }
-
- rc = lustre_fwrite(file, ldd, len, &off);
- if (rc != len) {
- CERROR("error writing %s: read %d of %lu\n",
- MOUNT_DATA_FILE, rc, len);
- GOTO(out_close, rc = -EINVAL);
- }
-
- rc = 0;
-
-out_close:
- filp_close(file, 0);
-out:
- pop_ctxt(&saved, mount_ctxt, NULL);
- RETURN(rc);
-}
-
-
/**************** config llog ********************/
/** Get a config log from the MGS and process it.
/* server use --servicenode param, only allow specified
* nids be registered */
- if ((ldd->ldd_flags & LDD_F_NO_PRIMNODE) != 0 &&
- class_match_nid(ldd->ldd_params,
+ if ((lsi->lsi_lmd->lmd_flags & LMD_FLG_NO_PRIMNODE) != 0 &&
+ class_match_nid(lsi->lsi_lmd->lmd_params,
PARAM_FAILNODE, id.nid) < 1)
continue;
/* match specified network */
- if (!class_match_net(ldd->ldd_params,
+ if (!class_match_net(lsi->lsi_lmd->lmd_params,
PARAM_NETWORK, LNET_NIDNET(id.nid)))
continue;
CERROR("params too big for mti\n");
RETURN(-ENOMEM);
}
- memcpy(mti->mti_params, ldd->ldd_params, sizeof(mti->mti_params));
+ strncpy(mti->mti_params, lsi->lsi_lmd->lmd_params,
+ sizeof(mti->mti_params));
RETURN(0);
}
GOTO(out, rc);
}
- /* Always update our flags */
- ldd->ldd_flags = mti->mti_flags & LDD_F_ONDISK_MASK;
-
- /* If this flag is set, it means the MGS wants us to change our
- on-disk data. (So far this means just the index.) */
- if (mti->mti_flags & LDD_F_REWRITE_LDD) {
- char *label;
- int err;
- CDEBUG(D_MOUNT, "Changing on-disk index from %#x to %#x "
- "for %s\n", ldd->ldd_svindex, mti->mti_stripe_index,
- mti->mti_svname);
- ldd->ldd_svindex = mti->mti_stripe_index;
- strncpy(ldd->ldd_svname, mti->mti_svname,
- sizeof(ldd->ldd_svname));
- /* or ldd_make_sv_name(ldd); */
- ldd_write(&mgc->obd_lvfs_ctxt, ldd);
- if (lsi->lsi_lmd->lmd_osd_type)
- goto out;
- err = fsfilt_set_label(mgc, lsi->lsi_srv_mnt->mnt_sb,
- mti->mti_svname);
- if (err)
- CERROR("Label set error %d\n", err);
- label = fsfilt_get_label(mgc, lsi->lsi_srv_mnt->mnt_sb);
- if (label)
- CDEBUG(D_MOUNT, "Disk label changed to %s\n", label);
-
- /* Flush the new ldd to disk */
- fsfilt_sync(mgc, lsi->lsi_srv_mnt->mnt_sb);
- }
-
out:
if (mti)
OBD_FREE_PTR(mti);
/* Set the mgc fs to our server disk. This allows the MGC to
* read and write configs locally, in case it can't talk to the MGS. */
- if (lsi->lsi_lmd->lmd_osd_type == NULL) {
+ if (lsi->lsi_srv_mnt) {
rc = server_mgc_set_fs(lsi->lsi_mgc, sb);
if (rc)
RETURN(rc);
out_mgc:
/* Release the mgc fs for others to use */
- if (lsi->lsi_lmd->lmd_osd_type == NULL)
+ if (lsi->lsi_srv_mnt)
server_mgc_clear_fs(lsi->lsi_mgc);
if (!rc) {
if (lsi->lsi_lmd->lmd_osd_type != NULL)
OBD_FREE(lsi->lsi_lmd->lmd_osd_type,
strlen(lsi->lsi_lmd->lmd_osd_type) + 1);
+ if (lsi->lsi_lmd->lmd_params != NULL)
+ OBD_FREE(lsi->lsi_lmd->lmd_params, 4096);
OBD_FREE(lsi->lsi_lmd, sizeof(*lsi->lsi_lmd));
}
RETURN(-ENOMEM);
strcpy(lsi->lsi_osd_type, LUSTRE_OSD_NAME);
+ ldd->ldd_mount_type = LDD_MT_LDISKFS;
/* The server name is given as a mount line option */
if (lsi->lsi_lmd->lmd_profile == NULL) {
ldd->ldd_svindex = simple_strtoul(p + 4, NULL, 16);
ldd->ldd_flags |= (lsi->lsi_lmd->lmd_flags & LMD_FLG_WRITECONF) ?
LDD_F_WRITECONF : 0;
+ ldd->ldd_flags |= (lsi->lsi_lmd->lmd_flags & LMD_FLG_VIRGIN) ?
+ LDD_F_VIRGIN | LDD_F_UPDATE : 0;
+ ldd->ldd_flags |= (lsi->lsi_lmd->lmd_flags & LMD_FLG_MGS) ?
+ LDD_F_SV_TYPE_MGS : 0;
+ ldd->ldd_flags |= (lsi->lsi_lmd->lmd_flags & LMD_FLG_NO_PRIMNODE) ?
+ LDD_F_NO_PRIMNODE : 0;
lsi->lsi_ldd = ldd;
*/
static struct vfsmount *server_kernel_mount(struct super_block *sb)
{
- struct lvfs_run_ctxt mount_ctxt;
struct lustre_sb_info *lsi = s2lsi(sb);
struct lustre_disk_data *ldd;
struct lustre_mount_data *lmd = lsi->lsi_lmd;
int rc;
ENTRY;
- if (lsi->lsi_lmd->lmd_osd_type) {
- rc = lsi_prepare(lsi);
+ rc = lsi_prepare(lsi);
+ if (rc)
RETURN(ERR_PTR(rc));
+
+ if (strcmp(lmd->lmd_osd_type, "osd-ldiskfs") == 0) {
+ /* with ldiskfs we're still mounting in the kernel space */
+ OBD_FREE(lmd->lmd_osd_type,
+ strlen(lmd->lmd_osd_type) + 1);
+ lmd->lmd_osd_type = NULL;
+ } else {
+ /* non-ldiskfs backends (zfs) do mounting internally */
+ RETURN(NULL);
}
- OBD_ALLOC(ldd, sizeof(*ldd));
- if (!ldd)
- RETURN(ERR_PTR(-ENOMEM));
- strcpy(lsi->lsi_osd_type, LUSTRE_OSD_NAME);
+ ldd = lsi->lsi_ldd;
/* In the past, we have always used flags = 0.
Note ext3/ldiskfs can't be mounted ro. */
options = (char *)page;
memset(options, 0, CFS_PAGE_SIZE);
- /* mount-line options must be added for pre-mount because it may
- * contain mount options such as journal_dev which are required
- * to mount successfuly the underlying filesystem */
- if (lmd->lmd_opts && (*(lmd->lmd_opts) != 0))
- strncat(options, lmd->lmd_opts, CFS_PAGE_SIZE - 1);
-
- /* Pre-mount ldiskfs to read the MOUNT_DATA_FILE */
- CDEBUG(D_MOUNT, "Pre-mount ldiskfs %s\n", lmd->lmd_dev);
- type = get_fs_type("ldiskfs");
- if (!type) {
- CERROR("premount failed: cannot find ldiskfs module\n");
- GOTO(out_free, rc = -ENODEV);
- }
- mnt = vfs_kern_mount(type, s_flags, lmd->lmd_dev, (void *)options);
- cfs_module_put(type->owner);
- if (IS_ERR(mnt)) {
- rc = PTR_ERR(mnt);
- CERROR("premount %s:%#lx ldiskfs failed: %d "
- "Is the ldiskfs module available?\n",
- lmd->lmd_dev, s_flags, rc );
- GOTO(out_free, rc);
- }
-
- OBD_SET_CTXT_MAGIC(&mount_ctxt);
- mount_ctxt.pwdmnt = mnt;
- mount_ctxt.pwd = mnt->mnt_root;
- mount_ctxt.fs = get_ds();
-
- rc = ldd_parse(&mount_ctxt, ldd);
- unlock_mntput(mnt);
-
- if (rc) {
- CERROR("premount parse options failed: rc = %d\n", rc);
- GOTO(out_free, rc);
- }
-
- /* Done with our pre-mount, now do the real mount. */
-
/* Glom up mount options */
memset(options, 0, CFS_PAGE_SIZE);
strncpy(options, ldd->ldd_mount_opts, CFS_PAGE_SIZE - 2);
}
lmd->lmd_magic = LMD_MAGIC;
+ OBD_ALLOC(lmd->lmd_params, 4096);
+ if (lmd->lmd_params == NULL)
+ RETURN(-ENOMEM);
+ lmd->lmd_params[0] = '\0';
+
/* Set default flags here */
s1 = options;
} else if (strncmp(s1, "writeconf", 9) == 0) {
lmd->lmd_flags |= LMD_FLG_WRITECONF;
clear++;
+ } else if (strncmp(s1, "virgin", 6) == 0) {
+ lmd->lmd_flags |= LMD_FLG_VIRGIN;
+ clear++;
+ } else if (strncmp(s1, "noprimnode", 10) == 0) {
+ lmd->lmd_flags |= LMD_FLG_NO_PRIMNODE;
+ clear++;
} else if (strncmp(s1, "mgssec=", 7) == 0) {
rc = lmd_parse_mgssec(lmd, s1 + 7);
if (rc)
if (rc)
goto invalid;
clear++;
+ } else if (strncmp(s1, "mgs", 3) == 0) {
+ /* We are an MGS */
+ lmd->lmd_flags |= LMD_FLG_MGS;
+ clear++;
} else if (strncmp(s1, "svname=", 7) == 0) {
rc = lmd_parse_string(&lmd->lmd_profile, s1 + 7);
if (rc)
goto invalid;
clear++;
+ } else if (strncmp(s1, "param=", 6) == 0) {
+ int length;
+ char *tail = strchr(s1 + 6, ',');
+ if (tail == NULL)
+ length = strlen(s1);
+ else
+ length = tail - s1;
+ length -= 6;
+ strncat(lmd->lmd_params, s1 + 6, length);
+ strcat(lmd->lmd_params, " ");
+ clear++;
} else if (strncmp(s1, "osd=", 4) == 0) {
rc = lmd_parse_string(&lmd->lmd_osd_type, s1 + 4);
if (rc)
goto invalid;
- /* with ldiskfs we're still doing ldd parsing
- * in the kernel space */
- if (!strcmp(lmd->lmd_osd_type, "osd-ldiskfs")) {
- OBD_FREE(lmd->lmd_osd_type,
- strlen(lmd->lmd_osd_type) + 1);
- lmd->lmd_osd_type = NULL;
- }
clear++;
}
/* Linux 2.4 doesn't pass the device, so we stuck it at the
git://git.whamcloud.com / fs / lustre-release.git / blobdiff