Re: silent semantic changes with reiser4

Hubert Chan
2004-08-27T06:20:36Z

>>>>> "Jeremy" == Jeremy Allison <jra@samba.org> writes:

Jeremy> On Thu, Aug 26, 2004 at 02:17:04PM -0400, Rik van Riel wrote:
>> On Thu, 26 Aug 2004, Jeremy Allison wrote:
>> > Because without kernel support there is no way someone can publish
>> > a new metadata type and have it automatically supported by all
>> > application data files (ie. most apps ignore it, and only apps that
>> > are aware of it can see it).
>>
>> So your backup software ignores it, and after a restore you've lost
>> your new metadata ?

Jeremy> Yes, but then you fix your backup software and everyone lives
Jeremy> happily ever after :-)......

Also, once you add support for file-as-dir, you can export any new
metadata that you want through that interface, so backup software will
be able to handle any new stuff you want to throw at it (ACLs, xattrs,
streams, etc.).

If anything, I'd say that needing to fix backup software is an argument
*for* adding file-as-dir semantics: no need to make any more changes
after this one (and it shouldn't be that big of a change, since backup
software already knows how to handle files, and how to handle dirs).

Jeremy> IMHO of course.

ditto.

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