From: "Denis V. Lunev" <den@openvz.org>
To: nbd-general@lists.sourceforge.net, qemu-devel@nongnu.org
Cc: Kevin Wolf <kwolf@redhat.com>,
Paolo Bonzini <pbonzini@redhat.com>,
Pavel Borzenkov <pborzenkov@virtuozzo.com>,
Stefan Hajnoczi <stefanha@redhat.com>,
den@openvz.org, Wouter Verhelst <w@uter.be>,
Roman Kagan <rkagan@virtuozzo.com>
Subject: [Qemu-devel] [PATCH 0/2] NBD protocol extensions: WRITE_ZEROES and GET_LBA_STATUS
Date: Wed, 23 Mar 2016 17:16:00 +0300 [thread overview]
Message-ID: <1458742562-30624-1-git-send-email-den@openvz.org> (raw)
This patch set adds two new experimental extensions to the NBD protocol:
- WRITE_ZEROES, which describes a command for efficient zeroing of block
device (or a part of it) without unneeded data transfer;
- GET_LBA_STATUS, which describes a command for quering block allocation
state and block dirtiness status.
These commands provides minimal set of operations with block device sparness
and are very useful for mirroring and backing up of QEMU block device.
Signed-off-by: Pavel Borzenkov <pborzenkov@virtuozzo.com>
Signed-off-by: Denis V. Lunev <den@openvz.org>
CC: Roman Kagan <rkagan@virtuozzo.com>
CC: Wouter Verhelst <w@uter.be>
CC: Paolo Bonzini <pbonzini@redhat.com>
CC: Kevin Wolf <kwolf@redhat.com>
CC: Stefan Hajnoczi <stefanha@redhat.com>
Pavel Borzenkov (2):
NBD proto: add WRITE_ZEROES extension
NBD proto: add GET_LBA_STATUS extension
doc/proto.md | 121 +++++++++++++++++++++++++++++++++++++++++++++++++++++++++++
1 file changed, 121 insertions(+)
--
2.1.4
next reply other threads:[~2016-03-23 14:16 UTC|newest]
Thread overview: 54+ messages / expand[flat|nested] mbox.gz Atom feed top
2016-03-23 14:16 Denis V. Lunev [this message]
2016-03-23 14:16 ` [Qemu-devel] [PATCH 1/2] NBD proto: add WRITE_ZEROES extension Denis V. Lunev
2016-03-23 15:14 ` Eric Blake
2016-03-23 17:40 ` [Qemu-devel] [Nbd] " Wouter Verhelst
2016-03-24 7:16 ` [Qemu-devel] " Pavel Borzenkov
2016-03-24 7:36 ` [Qemu-devel] [Nbd] " Wouter Verhelst
2016-03-23 17:21 ` Wouter Verhelst
2016-03-24 7:57 ` Pavel Borzenkov
2016-03-24 8:26 ` Wouter Verhelst
2016-03-24 11:35 ` Pavel Borzenkov
2016-03-24 11:37 ` Paolo Bonzini
2016-03-24 12:31 ` Wouter Verhelst
2016-03-24 14:53 ` Eric Blake
2016-03-23 14:16 ` [Qemu-devel] [PATCH 2/2] NBD proto: add GET_LBA_STATUS extension Denis V. Lunev
2016-03-23 16:27 ` Eric Blake
2016-03-24 12:30 ` Pavel Borzenkov
2016-03-24 15:04 ` Eric Blake
2016-03-24 16:36 ` Pavel Borzenkov
2016-03-23 17:58 ` [Qemu-devel] [Nbd] " Wouter Verhelst
2016-03-23 18:14 ` Kevin Wolf
2016-03-24 8:25 ` Pavel Borzenkov
2016-03-24 8:41 ` Wouter Verhelst
2016-03-24 11:36 ` Pavel Borzenkov
2016-03-24 12:32 ` Wouter Verhelst
2016-03-24 8:43 ` Pavel Borzenkov
2016-03-24 9:33 ` Wouter Verhelst
2016-03-24 10:32 ` Alex Bligh
2016-03-24 11:58 ` Paolo Bonzini
2016-03-24 12:17 ` Alex Bligh
2016-03-24 12:32 ` Paolo Bonzini
2016-03-24 13:31 ` Alex Bligh
2016-03-24 13:32 ` Paolo Bonzini
2016-03-24 11:55 ` Paolo Bonzini
2016-03-24 12:43 ` Wouter Verhelst
2016-03-24 15:25 ` Eric Blake
2016-03-24 15:33 ` Paolo Bonzini
2016-03-24 15:53 ` Wouter Verhelst
2016-03-24 16:04 ` Eric Blake
2016-03-24 16:07 ` Kevin Wolf
2016-03-24 16:47 ` Wouter Verhelst
2016-03-29 9:38 ` Kevin Wolf
2016-03-29 9:53 ` Wouter Verhelst
2016-03-29 10:25 ` Paolo Bonzini
2016-03-24 22:08 ` [Qemu-devel] " Eric Blake
2016-03-25 8:49 ` [Qemu-devel] [Nbd] " Wouter Verhelst
2016-03-25 9:01 ` Alex Bligh
2016-03-28 15:58 ` Eric Blake
2016-04-04 10:32 ` Markus Pargmann
2016-04-04 10:18 ` Markus Pargmann
2016-04-04 16:54 ` Eric Blake
2016-04-04 22:17 ` Wouter Verhelst
2016-04-04 16:40 ` [Qemu-devel] " Eric Blake
2016-04-04 20:16 ` Denis V. Lunev
2016-04-04 20:36 ` [Qemu-devel] [Nbd] " Eric Blake
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