On Thursday 22 February 2018 11:45:14 Jan Kara wrote:
> 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

Looks good, this should improve handling of uid/gid on removable UDF
filesystems. Add my Reviewed-by: Pali Rohár <pali.rohar@gmail.com>

Anyway, I would propose backporting patch "[PATCH 4/5] udf: Provide
saner default for invalid uid / gid" into stable kernels to allow root
user to modify files without uid/gid.

-- 
Pali Rohár
pali.rohar@gmail.com