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SubjectRe: Drawbacks of implementing undelete entirely in user space

> Miquel van Smoorenburg <> wrote:
> >How about moving the deleted file into a directory .wastebasket/XXXXX,
> >where XXXXX is the inode number of the directory the file was in at
> >the moment it was deleted. If that directory has the same permissions
> That implies that deleting files could potentially increase the space
> requirement on the disk (not good). Creating a directory is an "expensive"
> operation (uses non-negligible space and cpu/wallclock time).
> I don't think those are desirable properties of an unlink() operator.

Indeed, because a single line of extra code in ext2's debugfs makes
undelete possible as long as the file hasn't been physically overwritten


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