On Thu, Feb 3, 2011 at 9:49 PM, Eric Sandeen [off-list ref] wrote:

On 2/3/11 1:32 PM, Michael Rubin wrote:

quoted

On Thu, Feb 3, 2011 at 7:08 AM, Eric Sandeen [off-list ref] wrote:

quoted

If we can have a real plan for moving in this direction though, I'd
support it.  I'm just not sure how we get enough real testing under
our belts to be comfortable with dropping ext[23], especially as
most distros now default to ext4 anyway.

Eric what sort of testing are you looking for?

Anything, the more formal or more widespread the better.

I just don't think it's used much this way today...

We can start with xfstests etc but I'd be more concerned about
unexpected behavioral or performance changes.

quoted

I admit I like having ext2 around for comparisons in bug situations.
It really helps to isolate the problem area. How painful is the
upkeep?

since ext4 was merged, about 450 commits to ext2 & ext3 files.

since 2.6.32, about 150 commits.

Can you give a rough estimate of how those commits diverge between
bugfixes, kernel API changes, code cleanups?

Next3 has been following ext3 since 2.6.31 and I remember changes of
the 2 latter,
but not many major bugfixes.

I hardly think we can get away with throwing out ext3 code base, but
maybe it can go
into bugfixes-only mode? that is unless Jan likes to apply cleanups ;-)

Amir.

Translating that into pain units, I dunno.  In distro-land, I often
have bugfixes that need to hit 2 or 3 of the filesystems as well.

-Eric

quoted

mrubin
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