int volmgr_start_volume_by_mountpoint(char *mount_point)
{
volume_t *v;
v = volmgr_lookup_volume_by_mountpoint(mount_point, true);
if (!v)
return -ENOENT;
if (v->media_type == media_devmapper) {
if (devmapper_start(v->dm) < 0) {
LOGE("volmgr failed to start devmapper volume '%s'",
v->mount_point);
}
} else if (v->media_type == media_mmc) {
if (!v->dev) {
LOGE("Cannot start volume '%s' (volume is not bound)", mount_point);
pthread_mutex_unlock(&v->lock);
return -ENOENT;
}
if (_volmgr_consider_disk_and_vol(v, v->dev->disk) < 0) {
LOGE("volmgr failed to start volume '%s'", v->mount_point);
}
}
pthread_mutex_unlock(&v->lock);
return 0;
}
int devmapper_genesis(struct devmapping *dm)
{
if (dm->src_type == dmsrc_loopback) {
int fd;
LOG_VOL("devmapper_genesis(): Working on %s",
dm->type_data.loop.loop_src);
unlink(dm->type_data.loop.loop_src);
LOG_VOL("devmapper_genesis(): Creating imagefile (%u MB)",
dm->size_mb);
if ((fd = creat(dm->type_data.loop.loop_src, 0600)) < 0) {
LOGE("Error creating imagefile (%s)", strerror(errno));
return -errno;
}
if (ftruncate(fd, (dm->size_mb * (1024 * 1024))) < 0) {
LOGE("Error truncating imagefile (%s)", strerror(errno));
close(fd);
return -errno;
}
close(fd);
} else if (dm->src_type == dmsrc_partition) {
LOGE("partition maps not yet supported");
return -ENOSYS;
}
return devmapper_start(dm);
}
