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qemu: Add free and copy function for qemuDomainJobInfo and use it

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In order to add a string to qemuDomainJobInfo we must ensure that it's
freed and copied properly. Add helpers to copy and free the structure
and adjust the code to use them properly for the new semantics.

Additionally also allocation is changed to g_new0 as it includes the
type and thus it's very easy to grep for all the allocations of a given
type.

Signed-off-by: Peter Krempa <pkrempa@redhat.com>
Reviewed-by: Eric Blake <eblake@redhat.com>
This commit is contained in:
Peter Krempa 2020-03-26 17:55:00 +01:00
parent e77a094141
commit 72186f9c8c
6 changed files with 61 additions and 41 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

5
src/qemu/qemu_backup.c
View File

@ -641,9 +641,8 @@ qemuBackupJobTerminate(virDomainObjPtr vm,
qemuDomainJobInfoUpdateTime(priv->job.current);
g_free(priv->job.completed);
priv->job.completed = g_new0(qemuDomainJobInfo, 1);
*priv->job.completed = *priv->job.current;
g_clear_pointer(&priv->job.completed, qemuDomainJobInfoFree);
priv->job.completed = qemuDomainJobInfoCopy(priv->job.current);
priv->job.completed->stats.backup.total = priv->backup->push_total;
priv->job.completed->stats.backup.transferred = priv->backup->push_transferred;

26
src/qemu/qemu_domain.c
View File

@ -305,6 +305,23 @@ qemuDomainDisableNamespace(virDomainObjPtr vm,
}
void
qemuDomainJobInfoFree(qemuDomainJobInfoPtr info)
{
g_free(info);
}
qemuDomainJobInfoPtr
qemuDomainJobInfoCopy(qemuDomainJobInfoPtr info)
{
qemuDomainJobInfoPtr ret = g_new0(qemuDomainJobInfo, 1);
memcpy(ret, info, sizeof(*info));
return ret;
}
void
qemuDomainEventEmitJobCompleted(virQEMUDriverPtr driver,
virDomainObjPtr vm)
@ -385,7 +402,7 @@ qemuDomainObjResetAsyncJob(qemuDomainObjPrivatePtr priv)
job->spiceMigrated = false;
job->dumpCompleted = false;
VIR_FREE(job->error);
VIR_FREE(job->current);
g_clear_pointer(&job->current, qemuDomainJobInfoFree);
qemuMigrationParamsFree(job->migParams);
job->migParams = NULL;
job->apiFlags = 0;
@ -415,8 +432,8 @@ qemuDomainObjFreeJob(qemuDomainObjPrivatePtr priv)
{
qemuDomainObjResetJob(priv);
qemuDomainObjResetAsyncJob(priv);
VIR_FREE(priv->job.current);
VIR_FREE(priv->job.completed);
g_clear_pointer(&priv->job.current, qemuDomainJobInfoFree);
g_clear_pointer(&priv->job.completed, qemuDomainJobInfoFree);
virCondDestroy(&priv->job.cond);
virCondDestroy(&priv->job.asyncCond);
}
@ -6299,8 +6316,7 @@ qemuDomainObjBeginJobInternal(virQEMUDriverPtr driver,
qemuDomainAsyncJobTypeToString(asyncJob),
obj, obj->def->name);
qemuDomainObjResetAsyncJob(priv);
if (VIR_ALLOC(priv->job.current) < 0)
goto cleanup;
priv->job.current = g_new0(qemuDomainJobInfo, 1);
priv->job.current->status = QEMU_DOMAIN_JOB_STATUS_ACTIVE;
priv->job.asyncJob = asyncJob;
priv->job.asyncOwner = virThreadSelfID();

8
src/qemu/qemu_domain.h
View File

@ -177,6 +177,14 @@ struct _qemuDomainJobInfo {
qemuDomainMirrorStats mirrorStats;
};
void
qemuDomainJobInfoFree(qemuDomainJobInfoPtr info);
G_DEFINE_AUTOPTR_CLEANUP_FUNC(qemuDomainJobInfo, qemuDomainJobInfoFree);
qemuDomainJobInfoPtr
qemuDomainJobInfoCopy(qemuDomainJobInfoPtr info);
typedef struct _qemuDomainJobObj qemuDomainJobObj;
typedef qemuDomainJobObj *qemuDomainJobObjPtr;
struct _qemuDomainJobObj {

37
src/qemu/qemu_driver.c
View File

@ -3747,7 +3747,7 @@ qemuDumpToFd(virQEMUDriverPtr driver,
if (detach)
priv->job.current->statsType = QEMU_DOMAIN_JOB_STATS_TYPE_MEMDUMP;
else
VIR_FREE(priv->job.current);
g_clear_pointer(&priv->job.current, qemuDomainJobInfoFree);
if (qemuDomainObjEnterMonitorAsync(driver, vm, asyncJob) < 0)
return -1;
@ -13598,16 +13598,16 @@ static int
qemuDomainGetJobStatsInternal(virQEMUDriverPtr driver,
virDomainObjPtr vm,
bool completed,
qemuDomainJobInfoPtr jobInfo)
qemuDomainJobInfoPtr *jobInfo)
{
qemuDomainObjPrivatePtr priv = vm->privateData;
int ret = -1;
*jobInfo = NULL;
if (completed) {
if (priv->job.completed && !priv->job.current)
*jobInfo = *priv->job.completed;
else
jobInfo->status = QEMU_DOMAIN_JOB_STATUS_NONE;
*jobInfo = qemuDomainJobInfoCopy(priv->job.completed);
return 0;
}
@ -13626,26 +13626,25 @@ qemuDomainGetJobStatsInternal(virQEMUDriverPtr driver,
goto cleanup;
if (!priv->job.current) {
jobInfo->status = QEMU_DOMAIN_JOB_STATUS_NONE;
ret = 0;
goto cleanup;
}
*jobInfo = *priv->job.current;
*jobInfo = qemuDomainJobInfoCopy(priv->job.current);
switch (jobInfo->statsType) {
switch ((*jobInfo)->statsType) {
case QEMU_DOMAIN_JOB_STATS_TYPE_MIGRATION:
case QEMU_DOMAIN_JOB_STATS_TYPE_SAVEDUMP:
if (qemuDomainGetJobInfoMigrationStats(driver, vm, jobInfo) < 0)
if (qemuDomainGetJobInfoMigrationStats(driver, vm, *jobInfo) < 0)
goto cleanup;
break;
case QEMU_DOMAIN_JOB_STATS_TYPE_MEMDUMP:
if (qemuDomainGetJobInfoDumpStats(driver, vm, jobInfo) < 0)
if (qemuDomainGetJobInfoDumpStats(driver, vm, *jobInfo) < 0)
goto cleanup;
break;
case QEMU_DOMAIN_JOB_STATS_TYPE_BACKUP:
if (qemuBackupGetJobInfoStats(driver, vm, jobInfo) < 0)
if (qemuBackupGetJobInfoStats(driver, vm, *jobInfo) < 0)
goto cleanup;
break;
@ -13666,7 +13665,7 @@ qemuDomainGetJobInfo(virDomainPtr dom,
virDomainJobInfoPtr info)
{
virQEMUDriverPtr driver = dom->conn->privateData;
qemuDomainJobInfo jobInfo;
g_autoptr(qemuDomainJobInfo) jobInfo = NULL;
virDomainObjPtr vm;
int ret = -1;
@ -13681,12 +13680,13 @@ qemuDomainGetJobInfo(virDomainPtr dom,
if (qemuDomainGetJobStatsInternal(driver, vm, false, &jobInfo) < 0)
goto cleanup;
if (jobInfo.status == QEMU_DOMAIN_JOB_STATUS_NONE) {
if (!jobInfo ||
jobInfo->status == QEMU_DOMAIN_JOB_STATUS_NONE) {
ret = 0;
goto cleanup;
}
ret = qemuDomainJobInfoToInfo(&jobInfo, info);
ret = qemuDomainJobInfoToInfo(jobInfo, info);
cleanup:
virDomainObjEndAPI(&vm);
@ -13704,7 +13704,7 @@ qemuDomainGetJobStats(virDomainPtr dom,
virQEMUDriverPtr driver = dom->conn->privateData;
virDomainObjPtr vm;
qemuDomainObjPrivatePtr priv;
qemuDomainJobInfo jobInfo;
g_autoptr(qemuDomainJobInfo) jobInfo = NULL;
bool completed = !!(flags & VIR_DOMAIN_JOB_STATS_COMPLETED);
int ret = -1;
@ -13721,7 +13721,8 @@ qemuDomainGetJobStats(virDomainPtr dom,
if (qemuDomainGetJobStatsInternal(driver, vm, completed, &jobInfo) < 0)
goto cleanup;
if (jobInfo.status == QEMU_DOMAIN_JOB_STATUS_NONE) {
if (!jobInfo ||
jobInfo->status == QEMU_DOMAIN_JOB_STATUS_NONE) {
*type = VIR_DOMAIN_JOB_NONE;
*params = NULL;
*nparams = 0;
@ -13729,10 +13730,10 @@ qemuDomainGetJobStats(virDomainPtr dom,
goto cleanup;
}
ret = qemuDomainJobInfoToParams(&jobInfo, type, params, nparams);
ret = qemuDomainJobInfoToParams(jobInfo, type, params, nparams);
if (completed && ret == 0 && !(flags & VIR_DOMAIN_JOB_STATS_KEEP_COMPLETED))
VIR_FREE(priv->job.completed);
g_clear_pointer(&priv->job.completed, qemuDomainJobInfoFree);
cleanup:
virDomainObjEndAPI(&vm);

14
src/qemu/qemu_migration.c
View File

@ -1724,11 +1724,9 @@ qemuMigrationSrcWaitForCompletion(virQEMUDriverPtr driver,
qemuDomainJobInfoUpdateTime(jobInfo);
qemuDomainJobInfoUpdateDowntime(jobInfo);
VIR_FREE(priv->job.completed);
if (VIR_ALLOC(priv->job.completed) == 0) {
*priv->job.completed = *jobInfo;
g_clear_pointer(&priv->job.completed, qemuDomainJobInfoFree);
priv->job.completed = qemuDomainJobInfoCopy(jobInfo);
priv->job.completed->status = QEMU_DOMAIN_JOB_STATUS_COMPLETED;
}
if (asyncJob != QEMU_ASYNC_JOB_MIGRATION_OUT &&
jobInfo->status == QEMU_DOMAIN_JOB_STATUS_QEMU_COMPLETED)
@ -3017,7 +3015,7 @@ qemuMigrationSrcConfirmPhase(virQEMUDriverPtr driver,
if (retcode == 0)
jobInfo = priv->job.completed;
else
VIR_FREE(priv->job.completed);
g_clear_pointer(&priv->job.completed, qemuDomainJobInfoFree);
/* Update times with the values sent by the destination daemon */
if (mig->jobInfo && jobInfo) {
@ -5036,7 +5034,7 @@ qemuMigrationDstFinish(virQEMUDriverPtr driver,
: QEMU_MIGRATION_PHASE_FINISH2);
qemuDomainCleanupRemove(vm, qemuMigrationDstPrepareCleanup);
VIR_FREE(priv->job.completed);
g_clear_pointer(&priv->job.completed, qemuDomainJobInfoFree);
cookie_flags = QEMU_MIGRATION_COOKIE_NETWORK |
QEMU_MIGRATION_COOKIE_STATS |
@ -5257,7 +5255,7 @@ qemuMigrationDstFinish(virQEMUDriverPtr driver,
* is obsolete anyway.
*/
if (inPostCopy)
VIR_FREE(priv->job.completed);
g_clear_pointer(&priv->job.completed, qemuDomainJobInfoFree);
}
qemuMigrationParamsReset(driver, vm, QEMU_ASYNC_JOB_MIGRATION_IN,
@ -5268,7 +5266,7 @@ qemuMigrationDstFinish(virQEMUDriverPtr driver,
qemuDomainRemoveInactiveJob(driver, vm);
cleanup:
VIR_FREE(jobInfo);
g_clear_pointer(&jobInfo, qemuDomainJobInfoFree);
virPortAllocatorRelease(port);
if (priv->mon)
qemuMonitorSetDomainLog(priv->mon, NULL, NULL, NULL);

10
src/qemu/qemu_migration_cookie.c
View File

@ -123,7 +123,7 @@ qemuMigrationCookieFree(qemuMigrationCookiePtr mig)
VIR_FREE(mig->name);
VIR_FREE(mig->lockState);
VIR_FREE(mig->lockDriver);
VIR_FREE(mig->jobInfo);
g_clear_pointer(&mig->jobInfo, qemuDomainJobInfoFree);
virCPUDefFree(mig->cpu);
qemuMigrationCookieCapsFree(mig->caps);
VIR_FREE(mig);
@ -513,10 +513,9 @@ qemuMigrationCookieAddStatistics(qemuMigrationCookiePtr mig,
if (!priv->job.completed)
return 0;
if (!mig->jobInfo && VIR_ALLOC(mig->jobInfo) < 0)
return -1;
g_clear_pointer(&mig->jobInfo, qemuDomainJobInfoFree);
mig->jobInfo = qemuDomainJobInfoCopy(priv->job.completed);
*mig->jobInfo = *priv->job.completed;
mig->flags |= QEMU_MIGRATION_COOKIE_STATS;
return 0;
@ -1051,8 +1050,7 @@ qemuMigrationCookieStatisticsXMLParse(xmlXPathContextPtr ctxt)
if (!(ctxt->node = virXPathNode("./statistics", ctxt)))
return NULL;
if (VIR_ALLOC(jobInfo) < 0)
return NULL;
jobInfo = g_new0(qemuDomainJobInfo, 1);
stats = &jobInfo->stats.mig;
jobInfo->status = QEMU_DOMAIN_JOB_STATUS_COMPLETED;