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From: Linus Torvalds <torvalds@linux-foundation.org>
To: Ingo Molnar <mingo@kernel.org>
Cc: Pekka Enberg <penberg@kernel.org>,
	Linux Kernel Mailing List <linux-kernel@vger.kernel.org>,
	"H. Peter Anvin" <hpa@linux.intel.com>,
	Randy Dunlap <rdunlap@infradead.org>,
	Thomas Gleixner <tglx@linutronix.de>,
	David Rientjes <rientjes@google.com>,
	David Woodhouse <dwmw2@infradead.org>,
	Greg Kroah-Hartman <gregkh@linuxfoundation.org>,
	Sasha Levin <levinsasha928@gmail.com>,
	"H. Peter Anvin" <hpa@zytor.com>, Michal Marek <mmarek@suse.cz>,
	Stephen Rothwell <sfr@canb.auug.org.au>
Subject: Re: kvmtool tree (Was: Re: [patch] config: fix make kvmconfig)
Date: Mon, 11 Feb 2013 08:32:59 -0800	[thread overview]
Message-ID: <CA+55aFwq+_TvOZNEPO-eFPjYuPuMFL0bgR0x=nLq_tvfATqaTA@mail.gmail.com> (raw)
In-Reply-To: <20130211122654.GA5802@gmail.com>

On Mon, Feb 11, 2013 at 4:26 AM, Ingo Molnar <mingo@kernel.org> wrote:
>
> If you are asking whether it is critical for the kernel project
> to have tools/kvm/ integrated then it isn't. The kernel will
> live just fine without it, even if that decision is a mistake.

You go on to explain how this helps kvmtool, and quite frankly, I DO NOT CARE.

Everything you talk about is about helping your work, by making the
kernel maintenance be more. The fact that you want to use kernel
infrastructure in kvmtool is a great example: you may think it's a
great thing, but for the kernel it's just extra work, and extra layers
of abstraction etc etc.

And then you make it clear that you haven't even *bothered* to try to
make it a separate project.

Sorry, but with that kind of approach, I get less and less interested.
I think this whole tying together is a big mistake. It encourages
linkages that simply shouldn't be there.

And no, perf is not the perfect counter-example. With perf,. the
linkages made sense! There's supposed to be deep linkages to profiling
and event counting. There is ABSOLUTELY NOT supposed to be deep
linkages with virtualization. Quite the reverse.

And no, I don't want to maintain the mess that is both. There's just
no gain, and lots of potential pain.

                    Linus

  parent reply	other threads:[~2013-02-11 16:33 UTC|newest]

Thread overview: 65+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2012-12-20 21:51 [PATCH] x86: Default to ARCH=x86 to avoid overriding CONFIG_64BIT David Woodhouse
2012-12-21  2:07 ` [tip:x86/build] x86: Default to ARCH= x86 " tip-bot for David Woodhouse
2012-12-26  6:32   ` David Rientjes
2012-12-26  8:43     ` David Woodhouse
2012-12-26 10:44       ` David Rientjes
2012-12-26 12:38         ` David Woodhouse
2012-12-26 22:00           ` David Rientjes
2012-12-26 22:19             ` David Woodhouse
2012-12-27  1:52               ` David Rientjes
2012-12-27  8:01                 ` David Woodhouse
2012-12-26 22:30             ` Jesper Juhl
2012-12-26 23:07             ` David Woodhouse
2012-12-26 23:13             ` H. Peter Anvin
2012-12-26 23:32     ` [tip] config: Add 'make kvmconfig' David Woodhouse
2012-12-27  1:08       ` Randy Dunlap
2013-02-04 18:20         ` [patch] config: fix make kvmconfig David Rientjes
2013-02-04 18:44           ` Ingo Molnar
2013-02-04 18:57             ` David Rientjes
2013-02-04 19:11               ` Ingo Molnar
2013-02-04 19:14               ` Greg Kroah-Hartman
2013-02-04 19:13                 ` Ingo Molnar
2013-02-06 18:25                   ` Pekka Enberg
2013-02-06 20:12                     ` David Rientjes
2013-02-06 20:45                       ` Pekka Enberg
2013-02-06 21:02                       ` kvmtool tree (Was: Re: [patch] config: fix make kvmconfig) Stephen Rothwell
2013-02-06 21:46                         ` Ingo Molnar
2013-02-06 21:55                           ` H. Peter Anvin
2013-02-07 21:44                             ` Stephen Rothwell
2013-02-07 21:40                           ` Stephen Rothwell
2013-02-08 14:55                             ` Ingo Molnar
2013-02-08 21:14                               ` Linus Torvalds
2013-02-08 23:57                                 ` Pekka Enberg
2013-02-09  0:45                                   ` Linus Torvalds
2013-02-09 10:01                                     ` Pekka Enberg
2013-02-09 18:07                                       ` Linus Torvalds
2013-02-09 19:39                                         ` Pekka Enberg
2013-02-09 19:57                                           ` Linus Torvalds
2013-02-09 21:06                                             ` Theodore Ts'o
2013-02-11 12:38                                               ` Ingo Molnar
2013-02-11 12:26                                             ` Ingo Molnar
2013-02-11 12:56                                               ` Ingo Molnar
2013-02-11 13:18                                                 ` David Woodhouse
2013-02-11 13:58                                                   ` Anca Emanuel
2013-02-11 16:34                                                   ` Linus Torvalds
2013-02-11 17:34                                                     ` H. Peter Anvin
2013-02-11 17:41                                                   ` Ingo Molnar
2013-02-11 14:47                                               ` Pekka Enberg
2013-02-11 16:46                                                 ` David Woodhouse
2013-02-11 17:26                                                   ` Anca Emanuel
2013-02-11 16:32                                               ` Linus Torvalds [this message]
2013-02-11 17:28                                                 ` Ingo Molnar
     [not found]                                                   ` <CA+55aFx-0-qcYMqH2wnJJ7iAPhoEvD_EQ0xqVW3VGS3G9=_1_w@mail.gmail.com>
2013-02-11 17:58                                                     ` Ingo Molnar
2013-02-11 23:32                                                       ` Linus Torvalds
2013-02-12  9:52                                                         ` Ingo Molnar
2013-02-13  8:23                                                           ` Paolo Bonzini
2013-02-13  8:56                                                             ` Pekka Enberg
2013-02-13  9:23                                                               ` Ingo Molnar
2013-02-14 15:32                                                               ` Anthony Liguori
2013-02-19  8:08                               ` Ingo Molnar
2013-01-12 17:06   ` [tip:x86/build] x86: Default to ARCH= x86 to avoid overriding CONFIG_64BIT Borislav Petkov
2013-01-12 17:40     ` H. Peter Anvin
2013-01-12 18:08       ` Borislav Petkov
2013-01-12 18:10         ` H. Peter Anvin
2013-04-12 16:01 ` [PATCH] x86: Default to ARCH=x86 " richard -rw- weinberger
2013-04-12 16:38   ` David Woodhouse

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