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Re: [Qemu-block] [Qemu-devel] [PATCH v2] qemu-img: Check for backing ima


From: John Snow
Subject: Re: [Qemu-block] [Qemu-devel] [PATCH v2] qemu-img: Check for backing image if specified during create
Date: Thu, 11 May 2017 10:51:00 -0400
User-agent: Mozilla/5.0 (X11; Linux x86_64; rv:52.0) Gecko/20100101 Thunderbird/52.0


On 05/11/2017 05:37 AM, Kevin Wolf wrote:
> Am 09.05.2017 um 20:09 hat John Snow geschrieben:
>> Or, rather, force the open of a backing image if one was specified
>> for creation. Using a similar -unsafe option as rebase, allow qemu-img
>> to ignore the backing file validation if possible.
>>
>> It may not always be possible, as in the existing case when a filesize
>> for the new image was not specified.
>>
>> This is accomplished by shifting around the conditionals in
>> bdrv_img_create, such that a backing file is always opened unless we
>> provide BDRV_O_NO_BACKING. qemu-img is adjusted to pass this new flag
>> when -u is provided to create.
>>
>> Sorry for the heinous looking diffstat, but it's mostly whitespace.
>>
>> Inspired by: https://bugzilla.redhat.com/show_bug.cgi?id=1213786
>>
>> Signed-off-by: John Snow <address@hidden>
> 
> The idea makes sense to me, but the patch needs a rebase.
> 
> Kevin
> 

Already, again? Alright, coming up.



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