linux-kernel - Re: [PATCH] LogFS take three

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Message-ID: <20070516125813.GH5472@lazybastard.org>
Date:	Wed, 16 May 2007 14:58:13 +0200
From:	Jörn Engel <joern@...ybastard.org>
To:	Pekka Enberg <penberg@...helsinki.fi>
Cc:	Jamie Lokier <jamie@...reable.org>,
	Albert Cahalan <acahalan@...il.com>, akpm@...l.org,
	Evgeniy Polyakov <johnpol@....mipt.ru>,
	Greg KH <greg@...ah.com>, linux-kernel@...r.kernel.org,
	Ingo Oeser <ioe-lkml@...eria.de>,
	linux-mtd@...ts.infradead.org,
	Jan Engelhardt <jengelh@...ux01.gwdg.de>,
	linux-fsdevel@...r.kernel.org, Thomas Gleixner <tglx@...utronix.de>
Subject: Re: [PATCH] LogFS take three

On Wed, 16 May 2007 15:08:15 +0300, Pekka Enberg wrote:
> On 5/16/07, Jamie Lokier <jamie@...reable.org> wrote:
> >Given that the filesystem is still 'experimental', I'd concentrate on
> >getting it stable before worrying about immutable and xattrs unless
> >they are easy.
> 
> We will run into trouble if the on-disk format is not flexible enough
> to accommodate xattrs (think reiser3 here). So I'd worry about it
> before merging to mainline.

Adding xattrs would be fairly simple.  Inodes just need one extra
pointer for that.

Luckily inodes no longer need to be padded to 128 or 256 bytes.  They
are individually compressed, so their size is not limited to powers of
two.

Jörn

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