Re: [Nbd] [Qemu-devel] [Qemu-block] How to online resize qemu disk with nbd protocol?
- To: Eric Blake <eblake@...696...>
- Cc: "nbd-general@lists.sourceforge.net" <nbd-general@lists.sourceforge.net>, Stefan Hajnoczi <stefanha@...17...>, Bob Chen <a175818323@...17...>, "qemu-devel@...530..." <qemu-devel@...530...>, qemu block <qemu-block@...530...>
- Subject: Re: [Nbd] [Qemu-devel] [Qemu-block] How to online resize qemu disk with nbd protocol?
- From: Wouter Verhelst <w@...112...>
- Date: Wed, 18 Jan 2017 09:01:26 +0100
- Message-id: <20170118080126.nyldkjhxdsxd4u2b@...3...>
- In-reply-to: <1ef924f8-1e58-fe54-dabc-06873a531412@...696...>
- References: <CAMxP3BT7ncDLePmP7QfXMtbodJ81+9Frc01aCkipya3-BNL6AA@...18...> <e6e26ad1-3fdf-85ac-0dc4-f4027123af6b@...696...> <2EAE3C4F-58AF-4594-A284-A69D8BC3EA8F@...872...> <CAJSP0QWXF2tS5q-BpmxR9ti0osjzZCFiRxdRDho4pDBLkD3UUQ@...18...> <CAMxP3BQeUWwFLmb42=-XExRzdLe0egCaEUEF4kXLQ9khH9neWg@...18...> <90b32a89-6dd8-1f83-4f6f-01bb5479252e@...696...> <20170114144500.oxoqvrn5x4sdfo74@...3...> <1ef924f8-1e58-fe54-dabc-06873a531412@...696...>
On Mon, Jan 16, 2017 at 01:36:21PM -0600, Eric Blake wrote:
> Maybe the structured reply proposal can be extended into this (reserve a
> "reply" header that can be issued as many times as desired by the server
> without the client ever having issued the request first, and where the
> reply never uses the end-of-reply marker), but I'm not sure I want to go
> that direction just yet.
It's not necessarily a bad idea, which could also be used for:
- keepalive probes from server to client
- unsolicited ESHUTDOWN messages
both of which are currently not possible and might be useful for the
protocol to have.
--
< ron> I mean, the main *practical* problem with C++, is there's like a dozen
people in the world who think they really understand all of its rules,
and pretty much all of them are just lying to themselves too.
-- #debian-devel, OFTC, 2016-02-12
Reply to: