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SubjectRe: [RFC 12/26] ext2 white-out support
On Mittwoch, 1. August 2007, Josef Sipek wrote:
> Alright not the greatest of examples, there is something to be said about
> symmetry, so...let me try again :)
> Oops! There's a whiteout in /b that hides the directory in /c -- rename(2)
> shouldn't make directory subtrees disappear.
> There are two ways to solve this:
> 1) "cp -r" the entire subtree ...
> 2) Don't store whiteouts within branches ...
Sorry for making uninformed guesses, but if there are already special nodes
(whiteout), why not extending them to some more general format - specifying a
(source, destination) pair at the topmost level?
- A delete is a (source, NULL) pair
- A rename is a (source, destination) pair, which causes lookups on source to
use the string destination in the lower branches.

Would that work?



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