libvirt/SOURCES/libvirt-qemu_snapshot-create-don-t-require-disk-only-flag-for-offline-external-snapshot.patch

68 lines
2.4 KiB
Diff

From 743afd9422e59bc6cbda6b4a904394a045eb9aec Mon Sep 17 00:00:00 2001
Message-ID: <743afd9422e59bc6cbda6b4a904394a045eb9aec.1707394627.git.jdenemar@redhat.com>
From: Pavel Hrdina <phrdina@redhat.com>
Date: Tue, 30 Jan 2024 12:13:32 +0100
Subject: [PATCH] qemu_snapshot: create: don't require disk-only flag for
offline external snapshot
Historically creating offline external snapshot required disk-only flag
as well. Now when user requests new snapshot for offline VM and at least
one disk is specified to use external snapshot we will no longer require
disk-only flag as all other not specified disk will use external
snapshots as well.
Resolves: https://issues.redhat.com/browse/RHEL-22797
Signed-off-by: Pavel Hrdina <phrdina@redhat.com>
Reviewed-by: Peter Krempa <pkrempa@redhat.com>
(cherry picked from commit 189fdeff10b85786a495a8fcf67ba1428d9fc482)
Signed-off-by: Pavel Hrdina <phrdina@redhat.com>
---
src/qemu/qemu_snapshot.c | 16 ++++++++++++++--
1 file changed, 14 insertions(+), 2 deletions(-)
diff --git a/src/qemu/qemu_snapshot.c b/src/qemu/qemu_snapshot.c
index 871e63c9cd..0cac0c4146 100644
--- a/src/qemu/qemu_snapshot.c
+++ b/src/qemu/qemu_snapshot.c
@@ -1582,15 +1582,27 @@ qemuSnapshotCreateXMLValidateDef(virDomainObj *vm,
* to internal snapshots.
*/
static bool
-qemuSnapshotCreateUseExternal(virDomainSnapshotDef *def,
+qemuSnapshotCreateUseExternal(virDomainObj *vm,
+ virDomainSnapshotDef *def,
unsigned int flags)
{
+ size_t i;
+
if (flags & VIR_DOMAIN_SNAPSHOT_CREATE_DISK_ONLY)
return true;
if (def->memory == VIR_DOMAIN_SNAPSHOT_LOCATION_EXTERNAL)
return true;
+ if (!virDomainObjIsActive(vm)) {
+ /* No need to check all disks as function qemuSnapshotPrepare() guarantees
+ * that we don't have a combination of internal and external location. */
+ for (i = 0; i < def->ndisks; i++) {
+ if (def->disks[i].snapshot == VIR_DOMAIN_SNAPSHOT_LOCATION_EXTERNAL)
+ return true;
+ }
+ }
+
return false;
}
@@ -1623,7 +1635,7 @@ qemuSnapshotCreateAlignDisks(virDomainObj *vm,
return -1;
}
- if (qemuSnapshotCreateUseExternal(def, flags)) {
+ if (qemuSnapshotCreateUseExternal(vm, def, flags)) {
align_location = VIR_DOMAIN_SNAPSHOT_LOCATION_EXTERNAL;
def->state = virDomainObjGetState(vm, NULL);
--
2.43.0