Hello, this patch series improves uid and gid handling for UDF filesystems. In particular when uid/gid mount options are used, we make sure even newly created and chowned files still belong to the target user/group (UDF now behaves the same way as FAT in this mode to be easy to use for removable media). Also when the filesystem does not store uid/gid for files, we now present these files as belonging to overflow[ug]id instead of invalid ids if uid/gid mount option are not used so that at least sysadmin can modify the filesystem. Honza