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qemu: blockjob: Remove legacy block job completion code

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Signed-off-by: Peter Krempa <pkrempa@redhat.com>
Reviewed-by: Pavel Hrdina <phrdina@redhat.com>
Reviewed-by: Ján Tomko <jtomko@redhat.com>
This commit is contained in:
Peter Krempa 2022-07-19 22:39:15 +02:00
parent 542d6c6bf2
commit cea7bc58b7
1 changed files with 1 additions and 135 deletions
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134
src/qemu/qemu_blockjob.c
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@ -702,137 +702,6 @@ qemuBlockJobRewriteConfigDiskSource(virDomainObj *vm,
} }
static void
qemuBlockJobEventProcessLegacyCompleted(virQEMUDriver *driver,
virDomainObj *vm,
qemuBlockJobData *job,
int asyncJob)
{
virDomainDiskDef *disk = job->disk;
if (!disk)
return;
if (disk->mirrorState == VIR_DOMAIN_DISK_MIRROR_STATE_PIVOT) {
qemuBlockJobRewriteConfigDiskSource(vm, disk, disk->mirror);
/* XXX We want to revoke security labels as well as audit that
* revocation, before dropping the original source. But it gets
* tricky if both source and mirror share common backing files (we
* want to only revoke the non-shared portion of the chain); so for
* now, we leak the access to the original. */
virDomainLockImageDetach(driver->lockManager, vm, disk->src);
/* Move secret driver metadata */
if (qemuSecurityMoveImageMetadata(driver, vm, disk->src, disk->mirror) < 0) {
VIR_WARN("Unable to move disk metadata on "
"vm %s from %s to %s (disk target %s)",
vm->def->name,
NULLSTR(disk->src->path),
NULLSTR(disk->mirror->path),
disk->dst);
}
virObjectUnref(disk->src);
disk->src = disk->mirror;
} else {
if (disk->mirror) {
virDomainLockImageDetach(driver->lockManager, vm, disk->mirror);
/* Ideally, we would restore seclabels on the backing chain here
* but we don't know if somebody else is not using parts of it.
* Remove security driver metadata so that they are not leaked. */
qemuBlockRemoveImageMetadata(driver, vm, disk->dst, disk->mirror);
virObjectUnref(disk->mirror);
}
qemuBlockRemoveImageMetadata(driver, vm, disk->dst, disk->src);
}
/* Recompute the cached backing chain to match our
* updates. Better would be storing the chain ourselves
* rather than reprobing, but we haven't quite completed
* that conversion to use our XML tracking. */
disk->mirror = NULL;
disk->mirrorState = VIR_DOMAIN_DISK_MIRROR_STATE_NONE;
disk->mirrorJob = VIR_DOMAIN_BLOCK_JOB_TYPE_UNKNOWN;
disk->src->id = 0;
virStorageSourceBackingStoreClear(disk->src);
ignore_value(qemuDomainDetermineDiskChain(driver, vm, disk, NULL, true));
ignore_value(qemuBlockNodeNamesDetect(vm, asyncJob));
qemuBlockJobUnregister(job, vm);
qemuDomainSaveConfig(vm);
}
/**
* qemuBlockJobEventProcessLegacy:
* @driver: qemu driver
* @vm: domain
* @job: job to process events for
*
* Update disk's mirror state in response to a block job event
* from QEMU. For mirror state's that must survive libvirt
* restart, also update the domain's status XML.
*/
static void
qemuBlockJobEventProcessLegacy(virQEMUDriver *driver,
virDomainObj *vm,
qemuBlockJobData *job,
int asyncJob)
{
virDomainDiskDef *disk = job->disk;
VIR_DEBUG("disk=%s, mirrorState=%s, type=%d, state=%d, newstate=%d",
disk->dst,
NULLSTR(virDomainDiskMirrorStateTypeToString(disk->mirrorState)),
job->type,
job->state,
job->newstate);
if (job->newstate == -1)
return;
qemuBlockJobEmitEvents(driver, vm, disk, job->type, job->newstate);
job->state = job->newstate;
job->newstate = -1;
/* If we completed a block pull or commit, then update the XML
* to match. */
switch ((virConnectDomainEventBlockJobStatus) job->state) {
case VIR_DOMAIN_BLOCK_JOB_COMPLETED:
qemuBlockJobEventProcessLegacyCompleted(driver, vm, job, asyncJob);
break;
case VIR_DOMAIN_BLOCK_JOB_READY:
disk->mirrorState = VIR_DOMAIN_DISK_MIRROR_STATE_READY;
qemuDomainSaveStatus(vm);
break;
case VIR_DOMAIN_BLOCK_JOB_FAILED:
case VIR_DOMAIN_BLOCK_JOB_CANCELED:
if (disk->mirror) {
virDomainLockImageDetach(driver->lockManager, vm, disk->mirror);
/* Ideally, we would restore seclabels on the backing chain here
* but we don't know if somebody else is not using parts of it.
* Remove security driver metadata so that they are not leaked. */
qemuBlockRemoveImageMetadata(driver, vm, disk->dst, disk->mirror);
g_clear_pointer(&disk->mirror, virObjectUnref);
}
disk->mirrorState = VIR_DOMAIN_DISK_MIRROR_STATE_NONE;
disk->mirrorJob = VIR_DOMAIN_BLOCK_JOB_TYPE_UNKNOWN;
qemuBlockJobUnregister(job, vm);
break;
case VIR_DOMAIN_BLOCK_JOB_LAST:
break;
}
}
static void static void
qemuBlockJobEventProcessConcludedRemoveChain(virQEMUDriver *driver, qemuBlockJobEventProcessConcludedRemoveChain(virQEMUDriver *driver,
virDomainObj *vm, virDomainObj *vm,
@ -1749,10 +1618,7 @@ qemuBlockJobUpdate(virDomainObj *vm,
if (job->newstate == -1) if (job->newstate == -1)
return; return;
if (virQEMUCapsGet(priv->qemuCaps, QEMU_CAPS_BLOCKDEV))
qemuBlockJobEventProcess(priv->driver, vm, job, asyncJob); qemuBlockJobEventProcess(priv->driver, vm, job, asyncJob);
else
qemuBlockJobEventProcessLegacy(priv->driver, vm, job, asyncJob);
} }