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Re: [Qemu-devel] Re: [PATCH] For AIO return -ENOSPC on short write

From: Christoph Hellwig
Subject: Re: [Qemu-devel] Re: [PATCH] For AIO return -ENOSPC on short write
Date: Tue, 1 Mar 2011 21:19:26 +0100
User-agent: Mutt/1.3.28i

On Tue, Feb 22, 2011 at 05:59:01PM +0100, Paolo Bonzini wrote:
> On 02/22/2011 04:16 PM, Stefan Hajnoczi wrote:
> >Yes it is.  It doesn't explain it though.  The code involved here is
> >linux-aio.c and will be qcow2's bs->file.  That ought to be a
> >host_device and AFAIK that is not growable.  So I wanted to figure out
> >why we're even getting this far.  I expected the request to get
> >rejected in block.c when checking the range against the host_device.
> Possibly a COW logical volume can give short writes on disk full?

It shouldn't.  If it does that needs fixing.

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