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Re: FSFS: Plan of attack

From: Edmund Horner <chrysophylax_at_chrysophylax.cjb.net>
Date: 2004-04-12 04:53:07 CEST

Hash: SHA1

Greg Hudson wrote:
| On Sat, 2004-04-10 at 20:59, Edmund Horner wrote:

|>1. Doesn't the existence/level of a lower-level abstration depend on the
|>implementation of a higher-level abstraction?
| Sorry, that was supposed to be implicit. If we have abstraction layer
| (1), then layer (2) only applies to the implementations which follow the
| current implementation fork, and likewise if we have distinct
| abstractions at both (2) and (3) (as CMike wishes to avoid), only
| implementations which follow the current implementation fork at (2)
| would be participating in the abstraction at (3).

Ok fair enough then, I should have considered that everyon else might be
seeing it like that too. But I guess (depending on how many ultimate
implementations there might be) you might get your level (2)
abstraction at a different level from a level (2) abstraction in another
implementation? (Hmm, I'm getting a bit worried about how repository
format versions are going to be assigned. Might get a bit like TCP/IP
port numbers.)

| Glenn Thompson wrote:
|>I'll finish the HTML formatting as soon as possible so folks can
|>modify the document if they wish.
| This document has the same problem as your "master patch": it's 31 pages
| long and hard to digest. We really, really need your contributions to
| this process to be concise, focused, and objective. If we're arguing
| about a particular aspect of FS abstraction and you have an opinion
| about it, we need you to give your opinion about just that one question,
| not say, "I've been working on this big document with diagrams over here
| and part of it talks about that; please go read it."

Ha ha, yes it is a big document, but then the file system is pretty

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Received on Mon Apr 12 04:54:31 2004

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