include ext4

Scott James Remnant scott at canonical.com
Tue Sep 23 20:27:19 UTC 2008


I wonder how comfortable the ext4 upstream would be with a distribution
enabling it by default, and not encouraging users to be at least
conversant enough to build their own kernel.

Cc'd, Hi Ted; context below:

On Tue, 2008-09-23 at 13:21 -0700, Jason Newton wrote:
> Scott James Remnant wrote:
> > On Sat, 2008-09-20 at 04:41 -0700, Jason Newton wrote:
> >
> >   
> >> I'd also like to put my vote in on it being turned on
> >>
> >>     
> > I'd argue that since it's a development filesystem, people using it need
> > to be ready to supply patches to the author for the problems they
> > encounter.
> >
> > Thus forcing them to build their own kernel with it is entirely
> > appropriate.
> >
> > Scott
> >   
> While it may be true someone may need to submit patches, I think this is 
> fairly unlikely, take a look at the ext4 bugzilla to see how many bugs 
> have existed (of course these are only reported bugs and its true that a 
> limited number of people currently test/use ext4):
> http://bugzilla.kernel.org/buglist.cgi?product=File+System&bug_status=NEW&bug_status=REOPENED&bug_status=ASSIGNED&component=ext4
> Expanding the search criteria only shows a few more, almost all are 
> fixed.  Its actually very similar to ext3's page.
> 
> As for the dev. mailing list - there is a flurry of patches, but almost 
> all of the patches are for noncritical/featurish things, as such there 
> just doesn't seem to be any show stoppers left and right like some might 
> think.  Most importantly, the disk format is NOT changing anymore and 
> just having ro support is a significant plus, if there is limited write 
> support all the better, though it seems quite stable.  Finally, remember 
> that this is a journaled filesystem, and like ext3, it supports 
> different modes of journaling modes 
> (data=journal,data=ordered,data=writeback)  meaning that even if there 
> are hiccups (I've not experienced any yet, YMMV), its  pretty likely 
> your data is still safe.
-- 
Scott James Remnant
scott at canonical.com
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