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From: Fiona Ebner <f.ebner@proxmox.com>
To: pve-devel@lists.proxmox.com
Subject: [pve-devel] [PATCH storage 05/11] lvm plugin: snapshot delete: clarify comment about using commit
Date: Tue, 16 Dec 2025 14:02:16 +0100	[thread overview]
Message-ID: <20251216130230.104772-6-f.ebner@proxmox.com> (raw)
In-Reply-To: <20251216130230.104772-1-f.ebner@proxmox.com>

The volume size of the child might actually be bigger if there was a
resize. However, in terms of actual data that needs to be merged, the
child is usually smaller.

Signed-off-by: Fiona Ebner <f.ebner@proxmox.com>
---
 src/PVE/Storage/LVMPlugin.pm | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/src/PVE/Storage/LVMPlugin.pm b/src/PVE/Storage/LVMPlugin.pm
index a134334..0200666 100644
--- a/src/PVE/Storage/LVMPlugin.pm
+++ b/src/PVE/Storage/LVMPlugin.pm
@@ -1201,7 +1201,8 @@ sub volume_snapshot_delete {
     my $childvolname = $snapshots->{$childsnap}->{volname};
 
     my $err = undef;
-    #if first snapshot,as it should be bigger,  we merge child, and rename the snapshot to child
+    # if first snapshot, as it should be bigger in terms of actual data, we merge child, and rename
+    # the snapshot to child
     if (!$parentsnap) {
         print "$volname: deleting snapshot '$snap' by commiting snapshot '$childsnap'\n";
         print "running 'qemu-img commit $childpath'\n";
-- 
2.47.3



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  parent reply	other threads:[~2025-12-16 13:02 UTC|newest]

Thread overview: 12+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2025-12-16 13:02 [pve-devel] [PATCH-SERIES storage/qemu-server 00/11] fix #7094: external snapshot delete: ensure commit target is large enough Fiona Ebner
2025-12-16 13:02 ` [pve-devel] [PATCH storage 01/11] plugin: document volume_snapshot_info() method Fiona Ebner
2025-12-16 13:02 ` [pve-devel] [PATCH storage 02/11] plugin: volume snapshot info: also return virtual size Fiona Ebner
2025-12-16 13:02 ` [pve-devel] [PATCH storage 03/11] plugin: document volume_resize() method Fiona Ebner
2025-12-16 13:02 ` [pve-devel] [PATCH storage 04/11] plugin/storage: volume resize: add snapname parameter Fiona Ebner
2025-12-16 13:02 ` Fiona Ebner [this message]
2025-12-16 13:02 ` [pve-devel] [PATCH storage 06/11] bump API age and version Fiona Ebner
2025-12-16 13:02 ` [pve-devel] [PATCH storage 07/11] partially fix #7094: lvm: snapshot delete: ensure commit target is large enough Fiona Ebner
2025-12-16 13:02 ` [pve-devel] [PATCH storage 08/11] plugin: volume snapshot info: don't set 'order' for internal snapshots Fiona Ebner
2025-12-16 13:02 ` [pve-devel] [PATCH storage 09/11] plugin: volume snapshot info: correctly return internal snapshot information Fiona Ebner
2025-12-16 13:02 ` [pve-devel] [PATCH storage 10/11] plugin: volume snapshot info: do not set 'ext' property Fiona Ebner
2025-12-16 13:02 ` [pve-devel] [PATCH qemu-server 11/11] partially fix #7094: external snapshot delete: ensure commit target is large enough Fiona Ebner

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