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Re: [Qemu-devel] [PATCH] linux-aio: Allow reads beyond the end of growab
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From: |
Christoph Hellwig |
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Subject: |
Re: [Qemu-devel] [PATCH] linux-aio: Allow reads beyond the end of growable images |
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Date: |
Fri, 14 Oct 2011 09:51:38 +0200 |
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User-agent: |
Mutt/1.5.17 (2007-11-01) |
On Thu, Oct 13, 2011 at 03:49:39PM +0200, Kevin Wolf wrote:
> This is the linux-aio version of commits 22afa7b5 (raw-posix, synchronous) and
> ba1d1afd (posix-aio-compat). Reads now produce zeros after the end of file
> instead of failing or resulting in short reads, making linux-aio compatible
> with the behaviour of synchronous raw-posix requests and posix-aio-compat.
>
> The problem can be reproduced like this:
>
> dd if=/dev/zero of=/tmp/test.raw bs=1 count=1234
> ./qemu-io -k -n -g -c 'read -p 1024 512' /tmp/test.raw
Can you send a patch doing this for qemu-iotests?