From: Alexandre Derumier via pve-devel <pve-devel@lists.proxmox.com>
To: pve-devel@lists.proxmox.com
Cc: Alexandre Derumier <alexandre.derumier@groupe-cyllene.com>
Subject: [pve-devel] [PATCH qemu-server 11/13] qemu_img convert : add external snapshot support
Date: Tue, 3 Jun 2025 09:55:56 +0200 [thread overview]
Message-ID: <mailman.214.1748937413.395.pve-devel@lists.proxmox.com> (raw)
In-Reply-To: <20250603075558.627850-1-alexandre.derumier@groupe-cyllene.com>
[-- Attachment #1: Type: message/rfc822, Size: 5746 bytes --]
From: Alexandre Derumier <alexandre.derumier@groupe-cyllene.com>
To: pve-devel@lists.proxmox.com
Subject: [PATCH qemu-server 11/13] qemu_img convert : add external snapshot support
Date: Tue, 3 Jun 2025 09:55:56 +0200
Message-ID: <20250603075558.627850-22-alexandre.derumier@groupe-cyllene.com>
for external snapshot, we simply use snap volname as src.
don't use internal snapshot option in the command line.
Signed-off-by: Alexandre Derumier <alexandre.derumier@groupe-cyllene.com>
---
PVE/QemuServer.pm | 4 ++-
test/run_qemu_img_convert_tests.pl | 44 ++++++++++++++++++++++++++++++
2 files changed, 47 insertions(+), 1 deletion(-)
diff --git a/PVE/QemuServer.pm b/PVE/QemuServer.pm
index 534aa2df..53135894 100644
--- a/PVE/QemuServer.pm
+++ b/PVE/QemuServer.pm
@@ -8104,11 +8104,13 @@ sub qemu_img_convert {
my $dst_format = checked_volume_format($storecfg, $dst_volid);
my $dst_path = PVE::Storage::path($storecfg, $dst_volid);
my $dst_is_iscsi = ($dst_path =~ m|^iscsi://|);
+ my $support_qemu_snapshots = PVE::Storage::volume_support_qemu_snapshot($storecfg, $src_volid);
my $cmd = [];
push @$cmd, '/usr/bin/qemu-img', 'convert', '-p', '-n';
push @$cmd, '-l', "snapshot.name=$snapname"
- if $snapname && $src_format && $src_format eq "qcow2";
+ if $snapname && $src_format eq 'qcow2' && $support_qemu_snapshots && $support_qemu_snapshots eq 'internal';
+
push @$cmd, '-t', 'none' if $dst_scfg->{type} eq 'zfspool';
push @$cmd, '-T', $cachemode if defined($cachemode);
push @$cmd, '-r', "${bwlimit}K" if defined($bwlimit);
diff --git a/test/run_qemu_img_convert_tests.pl b/test/run_qemu_img_convert_tests.pl
index 0a622cd1..5f43d326 100755
--- a/test/run_qemu_img_convert_tests.pl
+++ b/test/run_qemu_img_convert_tests.pl
@@ -21,6 +21,15 @@ my $storage_config = {
type => "dir",
shared => 0,
},
+ localsnapext => {
+ content => {
+ images => 1,
+ },
+ path => "/var/lib/vz",
+ type => "dir",
+ snapext => 1,
+ shared => 0,
+ },
btrfs => {
content => {
images => 1,
@@ -61,6 +70,13 @@ my $storage_config = {
images => 1,
}
},
+ "lvm-store" => {
+ vgname => "pve",
+ type => "lvm",
+ content => {
+ images => 1,
+ }
+ },
"zfs-over-iscsi" => {
type => "zfs",
iscsiprovider => "LIO",
@@ -308,6 +324,34 @@ my $tests = [
"/var/lib/vz/images/$vmid/vm-$vmid-disk-0.raw",
]
},
+ {
+ name => "qcow2_external_snapshot",
+ parameters => [
+ "localsnapext:$vmid/vm-$vmid-disk-0.qcow2",
+ "local:$vmid/vm-$vmid-disk-0.raw",
+ 1024*10,
+ { snapname => 'foo' },
+ ],
+ expected => [
+ "/usr/bin/qemu-img", "convert", "-p", "-n", "-f", "qcow2", "-O", "raw",
+ "/var/lib/vz/images/$vmid/snap-foo-vm-$vmid-disk-0.qcow2",
+ "/var/lib/vz/images/$vmid/vm-$vmid-disk-0.raw",
+ ]
+ },
+ {
+ name => "lvmqcow2_external_snapshot",
+ parameters => [
+ "lvm-store:vm-$vmid-disk-0.qcow2",
+ "local:$vmid/vm-$vmid-disk-0.raw",
+ 1024*10,
+ { snapname => 'foo' },
+ ],
+ expected => [
+ "/usr/bin/qemu-img", "convert", "-p", "-n", "-f", "qcow2", "-O", "raw",
+ "/dev/pve/snap-foo-vm-$vmid-disk-0.qcow2",
+ "/var/lib/vz/images/$vmid/vm-$vmid-disk-0.raw",
+ ]
+ },
];
my $command;
--
2.39.5
[-- Attachment #2: Type: text/plain, Size: 160 bytes --]
_______________________________________________
pve-devel mailing list
pve-devel@lists.proxmox.com
https://lists.proxmox.com/cgi-bin/mailman/listinfo/pve-devel
next prev parent reply other threads:[~2025-06-03 7:58 UTC|newest]
Thread overview: 39+ messages / expand[flat|nested] mbox.gz Atom feed top
[not found] <20250603075558.627850-1-alexandre.derumier@groupe-cyllene.com>
2025-06-03 7:55 ` [pve-devel] [PATCH pve-qemu 1/1] add fake 10.0 Alexandre Derumier via pve-devel
2025-06-03 7:55 ` [pve-devel] [PATCH qemu-server 01/13] blockdev: cmdline: add blockdev syntax support Alexandre Derumier via pve-devel
2025-06-05 13:23 ` Fiona Ebner
2025-06-05 14:17 ` Fabian Grünbichler
2025-06-05 14:39 ` DERUMIER, Alexandre via pve-devel
[not found] ` <ee4940c99e9866910405b492dad15c68718c49ea.camel@groupe-cyllene.com>
2025-06-06 7:50 ` Fiona Ebner
2025-06-06 8:27 ` Fabian Grünbichler
2025-06-06 9:54 ` DERUMIER, Alexandre via pve-devel
2025-06-06 8:50 ` Fiona Ebner
2025-06-06 9:42 ` DERUMIER, Alexandre via pve-devel
[not found] ` <0605a27428cfb920ffefc51abdfec050a0a6b535.camel@groupe-cyllene.com>
2025-06-06 10:57 ` DERUMIER, Alexandre via pve-devel
2025-06-10 14:03 ` Fiona Ebner
2025-06-11 6:37 ` DERUMIER, Alexandre via pve-devel
[not found] ` <405662415075c0248618833b512b58258f80e0f7.camel@groupe-cyllene.com>
2025-06-11 7:24 ` Fiona Ebner
2025-06-11 14:02 ` DERUMIER, Alexandre via pve-devel
[not found] ` <733f5eefb25b76a0794a84d4f93ada8d70aea7be.camel@groupe-cyllene.com>
2025-06-11 14:13 ` Fiona Ebner
2025-06-12 5:20 ` DERUMIER, Alexandre via pve-devel
2025-06-03 7:55 ` [pve-devel] [PATCH pve-storage 1/9] common: add qemu_img_create an preallocation_cmd_option Alexandre Derumier via pve-devel
2025-06-03 7:55 ` [pve-devel] [PATCH qemu-server 02/13] blockdev: add support for ovmf && efidisk Alexandre Derumier via pve-devel
2025-06-03 7:55 ` [pve-devel] [PATCH pve-storage 2/9] common: add qemu_img_create_qcow2_backed Alexandre Derumier via pve-devel
2025-06-03 7:55 ` [pve-devel] [PATCH qemu-server 03/13] blockdev: vm_devices_list : fix block-query Alexandre Derumier via pve-devel
2025-06-17 14:44 ` Fiona Ebner
2025-06-03 7:55 ` [pve-devel] [PATCH pve-storage 3/9] common: add qemu_img_info helper Alexandre Derumier via pve-devel
2025-06-03 7:55 ` [pve-devel] [PATCH qemu-server 04/13] blockdev: add support to qemu_driveadd && qemu_drivedel Alexandre Derumier via pve-devel
2025-06-03 7:55 ` [pve-devel] [PATCH pve-storage 4/9] common: add qemu_img_measure Alexandre Derumier via pve-devel
2025-06-03 7:55 ` [pve-devel] [PATCH qemu-server 05/13] blockdev: add support to qemu_block_set_io_throttle Alexandre Derumier via pve-devel
2025-06-03 7:55 ` [pve-devel] [PATCH pve-storage 5/9] rename_volume: add source && target snap Alexandre Derumier via pve-devel
2025-06-03 7:55 ` [pve-devel] [PATCH qemu-server 06/13] blockdev: add support for cdrom media eject/insert Alexandre Derumier via pve-devel
2025-06-03 7:55 ` [pve-devel] [PATCH pve-storage 6/9] storage: volume_snapshot: add $running param + api bump Alexandre Derumier via pve-devel
2025-06-03 7:55 ` [pve-devel] [PATCH qemu-server 07/13] blockdev: add support for block_resize Alexandre Derumier via pve-devel
2025-06-03 7:55 ` [pve-devel] [PATCH pve-storage 7/9] qcow2: add external snapshot support Alexandre Derumier via pve-devel
2025-06-03 7:55 ` [pve-devel] [PATCH qemu-server 08/13] blockdev: add support for nbd_export: block-export-add Alexandre Derumier via pve-devel
2025-06-03 7:55 ` [pve-devel] [PATCH pve-storage 8/9] lvmplugin: add qcow2 snapshot Alexandre Derumier via pve-devel
2025-06-03 7:55 ` [pve-devel] [PATCH qemu-server 09/13] blockdev: add blockdev_mirror Alexandre Derumier via pve-devel
2025-06-03 7:55 ` [pve-devel] [PATCH pve-storage 9/9] storage: add volume_support_qemu_snapshot Alexandre Derumier via pve-devel
2025-06-03 7:55 ` [pve-devel] [PATCH qemu-server 10/13] blockdev: change aio on target if io_uring is not default Alexandre Derumier via pve-devel
2025-06-03 7:55 ` Alexandre Derumier via pve-devel [this message]
2025-06-03 7:55 ` [pve-devel] [PATCH qemu-server 12/13] blockdev: add backing_chain support Alexandre Derumier via pve-devel
2025-06-03 7:55 ` [pve-devel] [PATCH qemu-server 13/13] qcow2: add external snapshot support Alexandre Derumier via pve-devel
Reply instructions:
You may reply publicly to this message via plain-text email
using any one of the following methods:
* Save the following mbox file, import it into your mail client,
and reply-to-all from there: mbox
Avoid top-posting and favor interleaved quoting:
https://en.wikipedia.org/wiki/Posting_style#Interleaved_style
* Reply using the --to, --cc, and --in-reply-to
switches of git-send-email(1):
git send-email \
--in-reply-to=mailman.214.1748937413.395.pve-devel@lists.proxmox.com \
--to=pve-devel@lists.proxmox.com \
--cc=alexandre.derumier@groupe-cyllene.com \
/path/to/YOUR_REPLY
https://kernel.org/pub/software/scm/git/docs/git-send-email.html
* If your mail client supports setting the In-Reply-To header
via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line
before the message body.
This is a public inbox, see mirroring instructions
for how to clone and mirror all data and code used for this inbox
Service provided by Proxmox Server Solutions GmbH | Privacy | Legal