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Re: [Qemu-devel] [PATCH 00/14] block (mostly qcow2) changes (v6)
From: |
Gleb Natapov |
Subject: |
Re: [Qemu-devel] [PATCH 00/14] block (mostly qcow2) changes (v6) |
Date: |
Tue, 24 Mar 2009 13:22:57 +0200 |
On Tue, Mar 17, 2009 at 10:40:38PM +0200, Uri Lublin wrote:
> Changes from v5:
> Patchset includes newly introduced qcow2 extensions.
> Usage of such qcow2 extensions for keeping both backing format and
> highest-allocated-offset.
> No scanning of qcow2 images upon open.
highest-allocated-offset is written to a disk only if block device was closed
properly, so this value can't actually be trusted to be accurate. How
important is to maintain it accurate? If it is important it should be
saved on disk as part of a metadata update and if it is not it can be
updated on a first guest write that requires new block allocation.
--
Gleb.
- [Qemu-devel] [PATCH 05/14] block-qcow2: keep highest allocated offset, (continued)
- [Qemu-devel] [PATCH 05/14] block-qcow2: keep highest allocated offset, Uri Lublin, 2009/03/17
- [Qemu-devel] [PATCH 06/14] block-qcow2: export highest-alloc through BlockDriverInfo and get_info(), Uri Lublin, 2009/03/17
- [Qemu-devel] [PATCH 07/14] block: info blockstats: show highest_allocated if exists, Uri Lublin, 2009/03/17
- [Qemu-devel] [PATCH 08/14] Add a bdrv_close_all() and call it at the end of main(), Uri Lublin, 2009/03/17
- [Qemu-devel] [PATCH 09/14] block-qcow2: keep highest alloc offset in a qcow2 extension, Uri Lublin, 2009/03/17
- [Qemu-devel] [PATCH 10/14] qemu-img: info: show highest_alloc if exists, Uri Lublin, 2009/03/17
- [Qemu-devel] [PATCH 11/14] qcow2: qcow_read_extensions: make "advance offset over extension" common, Uri Lublin, 2009/03/17
- [Qemu-devel] [PATCH 12/14] block: pass BDRV_BACKING flag to open of a backing file, Uri Lublin, 2009/03/17
- [Qemu-devel] [PATCH 13/14] block: keep flags an image was opened with, Uri Lublin, 2009/03/17
- [Qemu-devel] [PATCH 14/14] block-qcow2: do not keep track of highest-alloc for backing files, Uri Lublin, 2009/03/17
Re: [Qemu-devel] [PATCH 00/14] block (mostly qcow2) changes (v6),
Gleb Natapov <=