dm_bufio_set_sector_offset
EXPORT_SYMBOL_GPL(dm_bufio_set_sector_offset);
dm_bufio_set_sector_offset(ic->bufio, ic->start + ic->initial_sectors);
dm_bufio_set_sector_offset(client, block_offset * SECTORS_PER_BLOCK);
dm_bufio_set_sector_offset(f->bufio, f->start << (v->data_dev_block_bits - SECTOR_SHIFT));
void dm_bufio_set_sector_offset(struct dm_bufio_client *c, sector_t start);