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qemu_snapshot: revert: move validation to separate function

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Signed-off-by: Pavel Hrdina <phrdina@redhat.com>
Reviewed-by: Ján Tomko <jtomko@redhat.com>
This commit is contained in:
Pavel Hrdina 2021-11-26 11:46:03 +01:00
parent 2bbbb201ee
commit 137328747e
1 changed files with 44 additions and 34 deletions
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78
src/qemu/qemu_snapshot.c
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@ -1897,6 +1897,49 @@ qemuSnapshotCreateXML(virDomainPtr domain,
}
static int
qemuSnapshotRevertValidate(virDomainObj *vm,
virDomainMomentObj *snap,
virDomainSnapshotDef *snapdef,
unsigned int flags)
{
if (!vm->persistent &&
snapdef->state != VIR_DOMAIN_SNAPSHOT_RUNNING &&
snapdef->state != VIR_DOMAIN_SNAPSHOT_PAUSED &&
(flags & (VIR_DOMAIN_SNAPSHOT_REVERT_RUNNING |
VIR_DOMAIN_SNAPSHOT_REVERT_PAUSED)) == 0) {
virReportError(VIR_ERR_OPERATION_INVALID, "%s",
_("transient domain needs to request run or pause to revert to inactive snapshot"));
return -1;
}
if (virDomainSnapshotIsExternal(snap)) {
virReportError(VIR_ERR_CONFIG_UNSUPPORTED, "%s",
_("revert to external snapshot not supported yet"));
return -1;
}
if (!snap->def->dom) {
virReportError(VIR_ERR_SNAPSHOT_REVERT_RISKY,
_("snapshot '%s' lacks domain '%s' rollback info"),
snap->def->name, vm->def->name);
return -1;
}
if (!(flags & VIR_DOMAIN_SNAPSHOT_REVERT_FORCE)) {
if (vm->hasManagedSave &&
!(snapdef->state == VIR_DOMAIN_SNAPSHOT_RUNNING ||
snapdef->state == VIR_DOMAIN_SNAPSHOT_PAUSED)) {
virReportError(VIR_ERR_SNAPSHOT_REVERT_RISKY, "%s",
_("snapshot without memory state, removal of existing managed saved state strongly recommended to avoid corruption"));
return -1;
}
}
return 0;
}
/* The domain is expected to be locked and inactive. */
static int
qemuSnapshotRevertInactive(virQEMUDriver *driver,
@ -1979,41 +2022,8 @@ qemuSnapshotRevert(virDomainObj *vm,
goto endjob;
snapdef = virDomainSnapshotObjGetDef(snap);
if (!vm->persistent &&
snapdef->state != VIR_DOMAIN_SNAPSHOT_RUNNING &&
snapdef->state != VIR_DOMAIN_SNAPSHOT_PAUSED &&
(flags & (VIR_DOMAIN_SNAPSHOT_REVERT_RUNNING |
VIR_DOMAIN_SNAPSHOT_REVERT_PAUSED)) == 0) {
virReportError(VIR_ERR_OPERATION_INVALID, "%s",
_("transient domain needs to request run or pause "
"to revert to inactive snapshot"));
if (qemuSnapshotRevertValidate(vm, snap, snapdef, flags) < 0)
goto endjob;
}
if (virDomainSnapshotIsExternal(snap)) {
virReportError(VIR_ERR_CONFIG_UNSUPPORTED, "%s",
_("revert to external snapshot not supported yet"));
goto endjob;
}
if (!snap->def->dom) {
virReportError(VIR_ERR_SNAPSHOT_REVERT_RISKY,
_("snapshot '%s' lacks domain '%s' rollback info"),
snap->def->name, vm->def->name);
goto endjob;
}
if (!(flags & VIR_DOMAIN_SNAPSHOT_REVERT_FORCE)) {
if (vm->hasManagedSave &&
!(snapdef->state == VIR_DOMAIN_SNAPSHOT_RUNNING ||
snapdef->state == VIR_DOMAIN_SNAPSHOT_PAUSED)) {
virReportError(VIR_ERR_SNAPSHOT_REVERT_RISKY, "%s",
_("snapshot without memory state, removal of "
"existing managed saved state strongly "
"recommended to avoid corruption"));
goto endjob;
}
}
config = virDomainDefCopy(snap->def->dom,
driver->xmlopt, priv->qemuCaps, true);