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

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Alex Tomas wrote:
Jeff Garzik (JG) writes:

 JG> That is what the entirety of Linux development is -- step-by-step.

 JG> It is OBVIOUS that it would take five minutes to start ext4.

right. it's not a problem to *start*. it's a problem it maintain.
day by day fs/ext3 and fs/ext4 will get more and more diffs.
at some point it will be a headache to apply patches from ext3
to ext4 and back. I known this very well ....

As Linus has stated, we have empirical evidence that splitting filesystems works, for both stability and development speed.

The number of patches to ext[23] will trickle off over time. As the obvious example, ext4 would receive the extent and 48bit patches rather than ext3 :)

	Jeff



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