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From: Christoph Hellwig <hch@lst.de>
To: Kevin Wolf <kwolf@redhat.com>
Cc: stefanha@gmail.com, qemu-devel@nongnu.org
Subject: Re: [Qemu-devel] [PATCH] linux-aio: Allow reads beyond the end of	growable images
Date: Fri, 14 Oct 2011 09:51:38 +0200	[thread overview]
Message-ID: <20111014075138.GA23272@lst.de> (raw)
In-Reply-To: <1318513779-8555-1-git-send-email-kwolf@redhat.com>

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?

      parent reply	other threads:[~2011-10-14  7:51 UTC|newest]

Thread overview: 3+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2011-10-13 13:49 [Qemu-devel] [PATCH] linux-aio: Allow reads beyond the end of growable images Kevin Wolf
2011-10-13 14:55 ` Stefan Hajnoczi
2011-10-14  7:51 ` Christoph Hellwig [this message]

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