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Re: [Qemu-block] [PATCH] qcow2: Fix qcow2_get_cluster_offset() for zero

From: Max Reitz
Subject: Re: [Qemu-block] [PATCH] qcow2: Fix qcow2_get_cluster_offset() for zero clusters
Date: Wed, 4 Nov 2015 20:29:00 +0100
User-agent: Mozilla/5.0 (X11; Linux x86_64; rv:38.0) Gecko/20100101 Thunderbird/38.3.0

On 04.11.2015 18:16, Kevin Wolf wrote:
> When searching for contiguous zero clusters, we only need to check the
> cluster type. Before this patch, an increasing offset (L2E_OFFSET_MASK)
> was expected, so that the function never returned more than a single
> zero cluster in practice. This patch fixes it to actually return as many
> contiguous zero clusters as it can.
> Cc: address@hidden
> Signed-off-by: Kevin Wolf <address@hidden>
> ---
>  block/qcow2-cluster.c | 15 +++++++++------
>  1 file changed, 9 insertions(+), 6 deletions(-)

Thanks, applied to my block tree:


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