linux-kernel - Re: btrfs: compression breaks cp and cross-FS mv, FS_IOC

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Message-Id: <1297706458-sup-9378@think>
Date:	Mon, 14 Feb 2011 13:01:32 -0500
From:	Chris Mason <chris.mason@...cle.com>
To:	Marti Raudsepp <marti@...fo.org>
Cc:	Josef Bacik <josef@...hat.com>,
	btrfs hackers <linux-btrfs@...r.kernel.org>,
	Kernel hackers <linux-kernel@...r.kernel.org>
Subject: Re: btrfs: compression breaks cp and cross-FS mv, FS_IOC_FIEMAP bug?

Excerpts from Marti Raudsepp's message of 2011-02-14 12:58:17 -0500:
> On Mon, Feb 14, 2011 at 17:01, Chris Mason <chris.mason@...cle.com> wrote:
> > Or, it could just be delalloc ;)
> 
> I suspect delalloc. After creating the file, filefrag reports "1
> extent found", but for some reason it doesn't actually print out
> details of the extent.
> 
> After a "sync" call, the extent appears and "cp" starts working as expected:

Great, that's a ton easier than fixing cp.

-chris
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