From: Ming Lei <tom.leiming@gmail.com>
To: Manuel Bentele <manuel-bentele@web.de>
Cc: linux-block <linux-block@vger.kernel.org>
Subject: Re: Adding QCOW2 reading/writing support
Date: Wed, 17 Apr 2019 09:35:46 +0800 [thread overview]
Message-ID: <CACVXFVPKHUgbgsbFZSDWqF7GTPyBzKJjKCSq7EYygre_GvpbyQ@mail.gmail.com> (raw)
In-Reply-To: <60bbe5e0-317d-8ead-0eb8-d1dc79927bc8@web.de>
Hi,
On Wed, Apr 17, 2019 at 5:33 AM Manuel Bentele <manuel-bentele@web.de> wrote:
>
> Hi everyone
>
> I'm going to implement an in-kernel reading of QCOW2 images.
> In the project, I only need the reading of QCOW2 images, but it's
> essential to make thoughts for the implementation of the writing, too.
> One of the difficulties seems to be the support of making an image
> sparse (resizing the disk image).
Could you describe this requirement in a bit more detail? Especially why
do you want to read/write QCOW2 in kernel?
>
> Now, I want to ask you for advice: What is the best approach to achieve
> this?
>
> * Implement the reading/writing in the device mapper?
> * Extend the loop device?
> * Create a new subsystem for the processing of sparse devices or images?
>
> Or do you have any other idea?
The 1st idea is that if this feature is really good requirement.
Thanks,
Ming Lei
next prev parent reply other threads:[~2019-04-17 1:36 UTC|newest]
Thread overview: 12+ messages / expand[flat|nested] mbox.gz Atom feed top
2019-04-16 21:30 Adding QCOW2 reading/writing support Manuel Bentele
2019-04-17 1:35 ` Ming Lei [this message]
2019-04-17 11:32 ` Manuel Bentele
2019-04-17 12:16 ` Hannes Reinecke
2019-04-17 21:04 ` Manuel Bentele
2019-04-18 1:05 ` Ming Lei
2019-04-18 10:02 ` Manuel Bentele
2019-05-14 8:56 ` Manuel Bentele
2019-04-17 11:58 ` Hannes Reinecke
2019-04-17 21:53 ` Manuel Bentele
2019-05-14 14:28 ` Roman Penyaev
2019-05-20 13:05 ` Manuel Bentele
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