From: Paolo Bonzini <pbonzini@redhat.com>
To: Kevin Wolf <kwolf@redhat.com>, Eric Blake <eblake@redhat.com>
Cc: nbd-general@lists.sourceforge.net, qemu-devel@nongnu.org,
Pavel Borzenkov <pborzenkov@virtuozzo.com>,
Stefan Hajnoczi <stefanha@redhat.com>,
Wouter Verhelst <w@uter.be>, "Denis V. Lunev" <den@openvz.org>
Subject: Re: [Qemu-devel] [PATCH v2] doc: Add NBD_CMD_BLOCK_STATUS extension
Date: Tue, 5 Apr 2016 15:43:08 +0200 [thread overview]
Message-ID: <5703C0EC.6080306@redhat.com> (raw)
In-Reply-To: <20160405040527.GA4183@noname.redhat.com>
On 05/04/2016 06:05, Kevin Wolf wrote:
> The options I can think of is adding a request field "max number of
> descriptors" or a flag "only single descriptor" (with the assumption
> that clients always want one or unlimited), but maybe you have a better
> idea.
I think a limit is better. Even if the client is ultimately going to
process the whole file, it may take a very long time and space to
retrieve all the descriptors in one go. Rather than query e.g. 16GB at
a time, I think it's simpler to put a limit of 1024 descriptors or so.
Paolo
next prev parent reply other threads:[~2016-04-05 13:43 UTC|newest]
Thread overview: 59+ messages / expand[flat|nested] mbox.gz Atom feed top
2016-04-04 16:39 [Qemu-devel] [PATCH v2] doc: Add NBD_CMD_BLOCK_STATUS extension Eric Blake
2016-04-04 18:06 ` [Qemu-devel] [Nbd] " Alex Bligh
2016-04-04 19:34 ` Eric Blake
2016-04-04 19:54 ` Denis V. Lunev
2016-04-04 20:03 ` Alex Bligh
2016-04-04 20:08 ` Denis V. Lunev
2016-04-04 20:34 ` Eric Blake
2016-04-04 21:06 ` Denis V. Lunev
2016-04-04 21:12 ` Alex Bligh
2016-04-05 14:15 ` Paolo Bonzini
2016-04-05 15:01 ` Alex Bligh
2016-04-05 15:23 ` Paolo Bonzini
2016-04-05 15:27 ` Alex Bligh
2016-04-05 15:31 ` Paolo Bonzini
2016-04-04 23:08 ` Wouter Verhelst
2016-04-04 23:32 ` Eric Blake
2016-04-05 7:16 ` Wouter Verhelst
2016-04-05 21:44 ` Wouter Verhelst
2016-04-05 7:13 ` Alex Bligh
2016-04-04 19:58 ` Alex Bligh
2016-04-04 20:04 ` Denis V. Lunev
2016-04-04 20:08 ` Alex Bligh
2016-04-04 20:13 ` Denis V. Lunev
2016-04-04 20:15 ` Alex Bligh
2016-04-04 20:27 ` Denis V. Lunev
2016-04-04 20:45 ` Eric Blake
2016-04-04 21:04 ` Denis V. Lunev
2016-04-04 21:12 ` Alex Bligh
2016-04-04 21:17 ` Eric Blake
2016-04-04 21:27 ` Denis V. Lunev
2016-04-04 20:26 ` Eric Blake
2016-04-04 21:07 ` Alex Bligh
2016-04-04 21:25 ` Eric Blake
2016-04-04 22:06 ` Alex Bligh
2016-04-04 20:22 ` Eric Blake
2016-04-05 13:38 ` Paolo Bonzini
2016-04-04 22:40 ` Wouter Verhelst
2016-04-04 23:03 ` Eric Blake
2016-04-05 13:41 ` Paolo Bonzini
2016-04-06 5:57 ` Denis V. Lunev
2016-04-06 14:08 ` Eric Blake
2016-04-05 4:05 ` [Qemu-devel] " Kevin Wolf
2016-04-05 13:43 ` Paolo Bonzini [this message]
2016-04-07 10:38 ` Vladimir Sementsov-Ogievskiy
2016-04-07 16:10 ` Eric Blake
2016-04-07 16:21 ` [Qemu-devel] [Nbd] " Alex Bligh
2016-04-08 11:35 ` [Qemu-devel] " Kevin Wolf
2016-04-09 9:08 ` [Qemu-devel] [Nbd] " Wouter Verhelst
2016-04-13 12:38 ` [Qemu-devel] " Pavel Borzenkov
2016-04-13 14:40 ` Eric Blake
2016-04-07 15:35 ` Pavel Borzenkov
2016-04-07 15:43 ` Paolo Bonzini
2016-04-05 8:51 ` Stefan Hajnoczi
2016-04-05 9:24 ` [Qemu-devel] [Nbd] " Markus Pargmann
2016-04-05 13:50 ` Paolo Bonzini
2016-04-11 5:58 ` Markus Pargmann
2016-04-05 14:14 ` Eric Blake
2016-04-05 20:50 ` Wouter Verhelst
2016-04-11 6:07 ` Markus Pargmann
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