89 lines
3.3 KiB
Diff
89 lines
3.3 KiB
Diff
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From b12f3837ddde95373b39843b8526b55e40d96500 Mon Sep 17 00:00:00 2001
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Message-ID: <b12f3837ddde95373b39843b8526b55e40d96500.1707394627.git.jdenemar@redhat.com>
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From: Pavel Hrdina <phrdina@redhat.com>
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Date: Tue, 30 Jan 2024 11:33:23 +0100
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Subject: [PATCH] qemu_snapshot: create: refactor external snapshot detection
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Introduce new function qemuSnapshotCreateUseExternal() that will return
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true if we will use external snapshots as default location.
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Signed-off-by: Pavel Hrdina <phrdina@redhat.com>
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Reviewed-by: Peter Krempa <pkrempa@redhat.com>
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(cherry picked from commit faa2e3bb541e50d719d05e58a129b4443c0c737c)
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Resolves: https://issues.redhat.com/browse/RHEL-22797
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Signed-off-by: Pavel Hrdina <phrdina@redhat.com>
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---
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src/qemu/qemu_snapshot.c | 39 ++++++++++++++++++++++++++++++---------
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1 file changed, 30 insertions(+), 9 deletions(-)
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diff --git a/src/qemu/qemu_snapshot.c b/src/qemu/qemu_snapshot.c
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index af5f995b0d..871e63c9cd 100644
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--- a/src/qemu/qemu_snapshot.c
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+++ b/src/qemu/qemu_snapshot.c
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@@ -1576,6 +1576,25 @@ qemuSnapshotCreateXMLValidateDef(virDomainObj *vm,
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}
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+/**
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+ * Check if libvirt should use external snapshots as default align_location
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+ * that will be used by virDomainSnapshotAlignDisks(). Otherwise we default
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+ * to internal snapshots.
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+ */
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+static bool
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+qemuSnapshotCreateUseExternal(virDomainSnapshotDef *def,
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+ unsigned int flags)
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+{
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+ if (flags & VIR_DOMAIN_SNAPSHOT_CREATE_DISK_ONLY)
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+ return true;
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+
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+ if (def->memory == VIR_DOMAIN_SNAPSHOT_LOCATION_EXTERNAL)
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+ return true;
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+
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+ return false;
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+}
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+
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+
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static int
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qemuSnapshotCreateAlignDisks(virDomainObj *vm,
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virDomainSnapshotDef *def,
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@@ -1584,7 +1603,7 @@ qemuSnapshotCreateAlignDisks(virDomainObj *vm,
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{
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g_autofree char *xml = NULL;
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qemuDomainObjPrivate *priv = vm->privateData;
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- virDomainSnapshotLocation align_location = VIR_DOMAIN_SNAPSHOT_LOCATION_INTERNAL;
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+ virDomainSnapshotLocation align_location = VIR_DOMAIN_SNAPSHOT_LOCATION_DEFAULT;
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/* Easiest way to clone inactive portion of vm->def is via
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* conversion in and back out of xml. */
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@@ -1604,17 +1623,19 @@ qemuSnapshotCreateAlignDisks(virDomainObj *vm,
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return -1;
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}
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- if (flags & VIR_DOMAIN_SNAPSHOT_CREATE_DISK_ONLY) {
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+ if (qemuSnapshotCreateUseExternal(def, flags)) {
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align_location = VIR_DOMAIN_SNAPSHOT_LOCATION_EXTERNAL;
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- if (virDomainObjIsActive(vm))
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- def->state = VIR_DOMAIN_SNAPSHOT_DISK_SNAPSHOT;
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- else
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- def->state = VIR_DOMAIN_SNAPSHOT_SHUTOFF;
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- def->memory = VIR_DOMAIN_SNAPSHOT_LOCATION_NO;
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- } else if (def->memory == VIR_DOMAIN_SNAPSHOT_LOCATION_EXTERNAL) {
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def->state = virDomainObjGetState(vm, NULL);
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- align_location = VIR_DOMAIN_SNAPSHOT_LOCATION_EXTERNAL;
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+
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+ if (flags & VIR_DOMAIN_SNAPSHOT_CREATE_DISK_ONLY) {
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+ if (virDomainObjIsActive(vm))
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+ def->state = VIR_DOMAIN_SNAPSHOT_DISK_SNAPSHOT;
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+ else
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+ def->state = VIR_DOMAIN_SNAPSHOT_SHUTOFF;
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+ def->memory = VIR_DOMAIN_SNAPSHOT_LOCATION_NO;
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+ }
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} else {
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+ align_location = VIR_DOMAIN_SNAPSHOT_LOCATION_INTERNAL;
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def->state = virDomainObjGetState(vm, NULL);
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if (virDomainObjIsActive(vm) &&
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--
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2.43.0
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