dm_get_descriptor_by_name
if ((desc = dm_get_descriptor_by_name(DM_ALIAS, dev, &err)) != 0) {
(drive_descr = dm_get_descriptor_by_name(DM_DRIVE,
if ((drive_descr = dm_get_descriptor_by_name(DM_DRIVE, devid,
alias = dm_get_descriptor_by_name(DM_ALIAS, drive, errp);
devp = dm_get_descriptor_by_name(DM_SLICE, slice, errp);
slice = dm_get_descriptor_by_name(DM_SLICE, slicename, errp);
dm_descriptor_t dm_get_descriptor_by_name(dm_desc_type_t desc_type,