Re: [BUG] copy file result with zero

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On Mon, 3 Oct 2011, Ted Ts'o wrote:

> On Mon, Oct 03, 2011 at 03:11:30PM +0200, Lukas Czerner wrote:
> > 
> > Oops, you're right. I think that the best solution would be to revert
> > the commit
> > 
> > c03f8aa9abdd517477c2021ea1251939b4da49e6
> > ext4: use FIEMAP_EXTENT_LAST flag for last extent in fiemap
> > 
> > and then fix the original problem with your delayed extent tree
> > solution, where we can easily check not only for next allocated extent,
> > but also for next delayed extent to see if the current one is last or
> > not.
> > ...
> >
> > I do not know how "ready" are your patches..Is it possible to wait for
> > them to be ready and fix it in your patch set ? That means, revert the
> > mentioned commit and reimplement fiemap with delayed extent tree.
> 
> Sigh, yeah, we need to fix this to avoid the hang in xfstests #252 but
> users losing data even if the coreutils release was only out there for
> 13 days is bad juju.
> 
> I'm working on reviewing the kernel patch backlog this week, and I'll
> give this series one priority.

Actually the series needs to be changed to to fix the problem. I'll
comment the appropriate patch.

Thanks!
-Lukas
> 
> Thanks to Yongqiang and Lukas for looking into this!
> 
> 							- Ted
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