linux-kernel - Re: LogFS take five

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Date:	Wed, 08 Aug 2007 19:27:17 +0300
From:	Artem Bityutskiy <dedekind@...radead.org>
To:	Jörn Engel <joern@...fs.org>
Cc:	linux-fsdevel@...r.kernel.org, linux-kernel@...r.kernel.org,
	linux-mtd@...ts.infradead.org, akpm@...l.org,
	David Woodhouse <dwmw2@...radead.org>,
	Arnd Bergmann <arnd@...db.de>,
	Thomas Gleixner <tglx@...utronix.de>
Subject: Re: LogFS take five

Hi Jörn,

On Wed, 2007-08-08 at 18:12 +0200, Jörn Engel wrote:
> It has been a while, mainly because I found a bunch of races and didn't
> want to publish anything before those were fixed.  Patch is still
> against 2.6.21 and just for review.

I'm very interested how do you account free/dirty space in LogFS:

* When you need to write new data, how do you select the place where to
write?
* When you run out of space, how do select find the segment to
garbage-collect?

For any given segment (or eraseblock), how do you find amount of free
and dirty space in it?

-- 
Best regards,
Artem Bityutskiy (Битюцкий Артём)

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