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Re: [Qemu-block] [PATCH 1/4] qcow2: Fix preallocation size formula

From: Eric Blake
Subject: Re: [Qemu-block] [PATCH 1/4] qcow2: Fix preallocation size formula
Date: Wed, 3 May 2017 19:54:41 -0500
User-agent: Mozilla/5.0 (X11; Linux x86_64; rv:52.0) Gecko/20100101 Thunderbird/52.0

On 05/03/2017 06:11 PM, Max Reitz wrote:
> When calculating the number of reftable entries, we should actually use
> the number of refblocks and not (wrongly[1]) re-calculate it.
> [1] "Wrongly" means: Dividing the number of clusters by the number of
>     entries per refblock and rounding down instead of up.
> Reported-by: Eric Blake <address@hidden>
> Signed-off-by: Max Reitz <address@hidden>
> ---
>  block/qcow2.c | 9 +++++----
>  1 file changed, 5 insertions(+), 4 deletions(-)
Reviewed-by: Eric Blake <address@hidden>

Eric Blake, Principal Software Engineer
Red Hat, Inc.           +1-919-301-3266
Virtualization:  qemu.org | libvirt.org

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