Re: [PATCH 0/8][RFC] IO latency/throughput fixes

[Alan Cox]

> apparently it never was unless you specifically mounted your ext3
> filesystem with data=ordered. The default was only that, a default,
> and one that can still be specified explicitly.

Look up "principle of least suprise"

> There are an unbounded number of possible incorrect setups in the
> world. Should we live in fear of their existence without any proof?

No but creating new ones for users is not good.

> I accept Linus' argument that the change in crash behavior for random
> folk is going to be very different, and that perhaps that alone should
> drive keeping the default as it is today, but now we're talking about
> the desktop space.

Which regularly handles data of great value -- like PhD theses.

Ext4 provides a good natural migration point, ext3 mid series does not.
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