dm_snap_origin 174 drivers/md/dm-exception-store.c (bdev_logical_block_size(dm_snap_origin(store->snap)->bdev) >> 9)) { dm_snap_origin 133 drivers/md/dm-exception-store.h struct dm_dev *dm_snap_origin(struct dm_snapshot *snap); dm_snap_origin 175 drivers/md/dm-snap.c EXPORT_SYMBOL(dm_snap_origin);