linux-kernel - Re: [Qemu-devel] [PATCH] KVM: Add wrapper script around QEMU to test kernels

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Date:	Mon, 07 Nov 2011 11:31:17 +0100
From:	Kevin Wolf <kwolf@...hat.com>
To:	"Ted Ts'o" <tytso@....edu>,
	Anthony Liguori <anthony@...emonkey.ws>,
	Avi Kivity <avi@...hat.com>, Pekka Enberg <penberg@...nel.org>,
	"kvm@...r.kernel.org list" <kvm@...r.kernel.org>,
	"linux-kernel@...r.kernel.org List" <linux-kernel@...r.kernel.org>,
	qemu-devel Developers <qemu-devel@...gnu.org>,
	Alexander Graf <agraf@...e.de>,
	Blue Swirl <blauwirbel@...il.com>,
	Américo Wang <xiyou.wangcong@...il.com>,
	Ingo Molnar <mingo@...e.hu>,
	Linus Torvalds <torvalds@...ux-foundation.org>
Subject: Re: [Qemu-devel] [PATCH] KVM: Add wrapper script around QEMU to test
 kernels

Am 06.11.2011 19:31, schrieb Ted Ts'o:
> On Sun, Nov 06, 2011 at 11:08:10AM -0600, Anthony Liguori wrote:
>> I'm quite happy with KVM tool and hope they continue working on it.
>> My only real wish is that they wouldn't copy QEMU so much and would
>> try bolder things that are fundamentally different from QEMU.
> 
> My big wish is that they don't try to merge the KVM tool into the
> kernel code.  It's a separate userspace project, and there's no reason
> for it to be bundled with kernel code.  It just makes the kernel
> sources larger. 

In fact, the reverse is true as well: It makes kvm-tool's sources
larger. Instead on just cloning a small repository I need to clone the
whole kernel repository, even though I'm not a kernel developer and
don't intend to touch anything but tools/kvm.

Not too bad for me as I have a kernel repository lying around anyway and
I can share most of the content, but there are people who don't. Still,
having an additional 1.2 GB repository just for ~1 MB in which I'm
really interested doesn't make me too happy. And dealing with a huge
repository also means that even git becomes slower (which means, I had
to turn off some functionality for my shell prompt in this repo, as I
didn't like waiting for much more than a second or two)

Makes it a lot less hackable for me unless you want to restrict the set
of potential developers to Linux kernel developers...

Kevin
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