int osd_label_lustre(struct mount_opts *mop)
{
struct lustre_disk_data *ldd = &mop->mo_ldd;
int ret;
switch (ldd->ldd_mount_type) {
#ifdef HAVE_LDISKFS_OSD
case LDD_MT_LDISKFS:
case LDD_MT_LDISKFS2:
ret = ldiskfs_label_lustre(mop);
break;
#endif /* HAVE_LDISKFS_OSD */
#ifdef HAVE_ZFS_OSD
case LDD_MT_ZFS:
ret = zfs_label_lustre(mop);
break;
#endif /* HAVE_ZFS_OSD */
default:
fatal();
fprintf(stderr, "unknown fs type %d '%s'\n",
ldd->ldd_mount_type, MT_STR(ldd));
ret = EINVAL;
break;
}
return ret;
}
int ldiskfs_rename_fsname(struct mkfs_opts *mop, const char *oldname)
{
struct mount_opts opts;
struct lustre_disk_data *ldd = &mop->mo_ldd;
char mntpt[] = "/tmp/mntXXXXXX";
char *dev;
int ret;
/* Change the filesystem label. */
opts.mo_ldd = *ldd;
opts.mo_source = mop->mo_device;
ret = ldiskfs_label_lustre(&opts);
if (ret) {
if (errno != 0)
ret = errno;
fprintf(stderr, "Can't change filesystem label: %s\n",
strerror(ret));
return ret;
}
/* Mount this device temporarily in order to write these files */
if (mkdtemp(mntpt) == NULL) {
if (errno != 0)
ret = errno;
else
ret = EINVAL;
fprintf(stderr, "Can't create temp mount point %s: %s\n",
mntpt, strerror(ret));
return ret;
}
#ifdef HAVE_SELINUX
/*
* Append file context to mount options if SE Linux is enabled
*/
if (is_selinux_enabled() > 0)
append_context_for_mount(mntpt, mop);
#endif
if (mop->mo_flags & MO_IS_LOOP)
dev = mop->mo_loopdev;
else
dev = mop->mo_device;
ret = mount(dev, mntpt, MT_STR(ldd), 0, ldd->ldd_mount_opts);
if (ret) {
if (errno != 0)
ret = errno;
fprintf(stderr, "Unable to mount %s: %s\n",
dev, strerror(ret));
if (ret == ENODEV)
fprintf(stderr, "Is the %s module available?\n",
MT_STR(ldd));
goto out_rmdir;
}
ret = lustre_rename_fsname(mop, mntpt, oldname);
umount(mntpt);
out_rmdir:
rmdir(mntpt);
return ret;
}
