From: Eric Blake <eblake@redhat.com>
To: "Michael S. Tsirkin" <mst@redhat.com>,
Roman Kagan <rkagan@virtuozzo.com>,
"Denis V. Lunev" <den@openvz.org>,
Igor Redko <redkoi@virtuozzo.com>,
qemu-devel@nongnu.org
Subject: Re: [Qemu-devel] [PATCH 1/2] virtio-balloon: export all balloon statistics
Date: Wed, 24 Feb 2016 08:43:35 -0700 [thread overview]
Message-ID: <56CDCFA7.90308@redhat.com> (raw)
In-Reply-To: <20160224162344-mutt-send-email-mst@redhat.com>
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On 02/24/2016 07:31 AM, Michael S. Tsirkin wrote:
>> One of the benefits is forward compatibility, so that counters that have
>> graduated into supported ones and have got their own number and name,
>> can be made to work with qemu that doesn't yet recognize them.
>
> Then management does start relying on the x- prefixed things,
> and once it's used to that it's a slippery slope.
Any management tool that relies on an x- prefix name is broken. We've
explicitly documented that the x- prefix is unstable and liable to go
away with a future release. Any management app that wants to use a
feature beginning with x- should FIRST push hard to get the x- removed
and stabilize the interface (and libvirt, at least, does just that).
--
Eric Blake eblake redhat com +1-919-301-3266
Libvirt virtualization library http://libvirt.org
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next prev parent reply other threads:[~2016-02-24 15:43 UTC|newest]
Thread overview: 23+ messages / expand[flat|nested] mbox.gz Atom feed top
2016-02-23 14:59 [Qemu-devel] [PATCH v2 0/2] virtio-balloon: improve balloon statistics Denis V. Lunev
2016-02-23 14:59 ` [Qemu-devel] [PATCH 1/2] virtio-balloon: export all " Denis V. Lunev
2016-02-23 15:24 ` Michael S. Tsirkin
2016-02-23 15:29 ` Denis V. Lunev
2016-02-23 15:49 ` Michael S. Tsirkin
2016-02-24 10:01 ` Roman Kagan
2016-02-24 14:31 ` Michael S. Tsirkin
2016-02-24 15:43 ` Eric Blake [this message]
2016-02-25 5:50 ` Denis V. Lunev
2016-02-25 8:44 ` Markus Armbruster
2016-02-25 8:54 ` Michael S. Tsirkin
2016-02-25 9:30 ` Roman Kagan
2016-02-25 10:05 ` Michael S. Tsirkin
2016-02-25 10:46 ` Markus Armbruster
2016-02-25 11:17 ` Roman Kagan
2016-02-25 11:58 ` Markus Armbruster
2016-02-25 12:44 ` Roman Kagan
2016-02-25 14:10 ` Markus Armbruster
2016-02-25 14:49 ` Roman Kagan
2016-02-23 14:59 ` [Qemu-devel] [PATCH 2/2] virtio-balloon: add 'available' counter Denis V. Lunev
-- strict thread matches above, loose matches on Subject: below --
2016-02-24 7:50 [Qemu-devel] [PATCH v3 0/2] virtio-balloon: improve balloon statistics Denis V. Lunev
2016-02-24 7:50 ` [Qemu-devel] [PATCH 1/2] virtio-balloon: export all " Denis V. Lunev
2016-02-20 7:54 [Qemu-devel] [PATCH 0/2] virtio-balloon: improve " Denis V. Lunev
2016-02-20 7:54 ` [Qemu-devel] [PATCH 1/2] virtio-balloon: export all " Denis V. Lunev
2016-02-22 21:27 ` Eric Blake
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