Re: [Ext2-devel] [RFC 0/13] extents and 48bit ext3

[Arjan van de Ven <arjan@infradead.org>]

On Fri, 2006-06-09 at 14:51 -0400, Jeff Garzik wrote:
> PRECISELY.  So you should stop modifying a filesystem whose design is 
> admittedly _not_ modern!
> 
> ext3 is already essentially xiafs-on-life-support, when you consider 
> today's large storage systems and today's filesystem technology.  Just 
> look at the ugly hacks needed to support expanding an ext3 filesystem 
> online.


actually I think I disagree with you. One thing I've noticed over the
years is that ext2 layout has one thing going for it: it is simple and
robust. Maybe "ext2 layout" is the wrong word, "block bitmap and
direct/indirect block based" may be better. It seems that once you go
into tree space (and I would call htree a borderline thing there) you
get both really complex code and fragile behavior all over (mostly in
terms of "when something goes wrong")

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