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Re: [PATCH v4 1/1] qemu-img: Add --target-is-zero to convert
From: |
Max Reitz |
Subject: |
Re: [PATCH v4 1/1] qemu-img: Add --target-is-zero to convert |
Date: |
Fri, 7 Feb 2020 11:54:08 +0100 |
User-agent: |
Mozilla/5.0 (X11; Linux x86_64; rv:68.0) Gecko/20100101 Thunderbird/68.4.1 |
On 05.02.20 12:02, David Edmondson wrote:
> In many cases the target of a convert operation is a newly provisioned
> target that the user knows is blank (reads as zero). In this situation
> there is no requirement for qemu-img to wastefully zero out the entire
> device.
>
> Add a new option, --target-is-zero, allowing the user to indicate that
> an existing target device will return zeros for all reads.
>
> Signed-off-by: David Edmondson <address@hidden>
> ---
> docs/interop/qemu-img.rst | 9 ++++++++-
> qemu-img-cmds.hx | 4 ++--
> qemu-img.c | 26 +++++++++++++++++++++++---
> 3 files changed, 33 insertions(+), 6 deletions(-)
Thanks, I’ve applied the patch to my block branch:
https://git.xanclic.moe/XanClic/qemu/commits/branch/block
Max
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