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Date: Mon, 20 Jun 2016 13:12:49 +0100
From: Stefan Hajnoczi <stefanha@gmail.com>
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Subject: Re: [Qemu-devel] [Qemu-block] [PATCH v2 03/17] block: Fix harmless
 off-by-one in bdrv_aligned_preadv()
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To: Eric Blake <eblake@redhat.com>
Cc: qemu-devel@nongnu.org, kwolf@redhat.com, Fam Zheng <famz@redhat.com>, Stefan Hajnoczi <stefanha@redhat.com>, qemu-block@nongnu.org, Max Reitz <mreitz@redhat.com>


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On Tue, Jun 14, 2016 at 03:30:25PM -0600, Eric Blake wrote:
> If the amount of data to read ends exactly on the total size
> of the bs, then we were wasting time creating a local qiov
> to read the data in preparation for what would normally be
> appending zeroes beyond the end, even though this corner case
> has nothing further to do.
>=20
> Signed-off-by: Eric Blake <eblake@redhat.com>
> Reviewed-by: Kevin Wolf <kwolf@redhat.com>
>=20
> ---
> v2: no change, add R-b
> ---
>  block/io.c | 2 +-
>  1 file changed, 1 insertion(+), 1 deletion(-)

Reviewed-by: Stefan Hajnoczi <stefanha@redhat.com>

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