From: Jeremy Fitzhardinge <jeremy@goop.org>
To: Chris Wright <chrisw@sous-sol.org>
Cc: Alok Kataria <akataria@vmware.com>, Ingo Molnar <mingo@elte.hu>,
Thomas Gleixner <tglx@linutronix.de>,
"H. Peter Anvin" <hpa@zytor.com>,
the arch/x86 maintainers <x86@kernel.org>,
LKML <linux-kernel@vger.kernel.org>,
Rusty Russell <rusty@rustcorp.com.au>,
virtualization@lists.osdl.org
Subject: Re: Paravirtualization on VMware's Platform [VMI].
Date: Thu, 17 Sep 2009 17:53:33 -0700 [thread overview]
Message-ID: <4AB2DA0D.8020606@goop.org> (raw)
In-Reply-To: <20090918003412.GI26034@sequoia.sous-sol.org>
On 09/17/09 17:34, Chris Wright wrote:
>> One of the options that I am contemplating is to drop the code from the
>> tip tree in this release cycle, and given that this should be a low risk
>> change we can remove it from Linus's tree later in the merge cycle.
>>
>> Let me know your views on this or if you think we should do this some
>> other way.
>>
> Typically we give time measured in multiple release cycles
> before deprecating a feature. This means placing an entry in
> Documentation/feature-removal-schedule.txt, and potentially
> adding some noise to warn users they are using a deprecated
> feature.
>
That's true if the feature has some functional effect on users. But at
first sight, VMI is really just an optimisation, and a non-VMI-equipped
kernel would be completely functionally equivalent, right?
On the other hand, there could well be a performance regression which
could affect users. However they're taking the explicit step of
withdrawing support for VMI, so I guess they can just take that in their
stride.
J
next prev parent reply other threads:[~2009-09-18 0:53 UTC|newest]
Thread overview: 44+ messages / expand[flat|nested] mbox.gz Atom feed top
2009-09-18 0:17 Paravirtualization on VMware's Platform [VMI] Alok Kataria
2009-09-18 0:34 ` Chris Wright
2009-09-18 0:53 ` Jeremy Fitzhardinge [this message]
2009-09-18 0:58 ` Chris Wright
2009-09-18 1:43 ` Alok Kataria
2009-09-19 7:43 ` Avi Kivity
2009-09-19 22:44 ` Greg KH
2009-09-20 1:04 ` Jeremy Fitzhardinge
2009-09-20 3:56 ` Alok Kataria
2009-09-20 3:59 ` Alok Kataria
2009-09-20 7:42 ` Ingo Molnar
2009-09-20 7:52 ` Arjan van de Ven
2009-09-20 9:00 ` Avi Kivity
2009-09-20 15:49 ` Jeremy Fitzhardinge
2009-09-20 19:00 ` Avi Kivity
2009-09-22 8:09 ` Ingo Molnar
2009-09-22 16:52 ` Jeremy Fitzhardinge
2009-09-22 18:02 ` Ingo Molnar
2009-09-22 18:16 ` Jeremy Fitzhardinge
2009-09-22 19:04 ` Ingo Molnar
2009-09-22 19:30 ` Jeremy Fitzhardinge
2009-09-22 7:22 ` Rusty Russell
2009-09-22 16:53 ` Jeremy Fitzhardinge
2009-09-22 19:30 ` Alok Kataria
2009-09-22 19:47 ` Jeremy Fitzhardinge
2009-09-22 21:27 ` H. Peter Anvin
2009-09-22 21:54 ` Alok Kataria
2009-09-22 22:58 ` H. Peter Anvin
2009-09-23 7:29 ` Gerd Hoffmann
2009-09-29 0:45 ` Alok Kataria
2009-09-29 2:25 ` H. Peter Anvin
2009-09-29 3:00 ` Alok Kataria
2009-09-29 9:01 ` Chris Wright
2009-09-29 17:25 ` Alok Kataria
2009-09-29 17:27 ` H. Peter Anvin
2009-09-29 17:36 ` Alok Kataria
2009-09-29 18:21 ` Chris Wright
2009-09-29 8:08 ` Arjan van de Ven
2009-09-29 16:49 ` Alok Kataria
2009-09-29 16:51 ` H. Peter Anvin
2009-09-29 17:55 ` Learning question regarding virtio and partvirt_ops Hank Janssen
2009-09-29 19:02 ` Brian Jackson
2009-10-02 3:00 ` Paravirtualization on VMware's Platform [VMI] Eric W. Biederman
2009-10-02 4:45 ` Alok Kataria
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