[libvirt] [PATCH 1/6] Refactor job statistics
John Ferlan
jferlan at redhat.com
Fri Sep 5 18:41:21 UTC 2014
On 09/01/2014 11:05 AM, Jiri Denemark wrote:
> Job statistics data were tracked in several structures and variables.
> Let's make a new qemuDomainJobInfo structure which can be used as a
> single source of statistics data as a preparation for storing data about
> completed a job.
>
> Signed-off-by: Jiri Denemark <jdenemar at redhat.com>
> ---
> src/qemu/qemu_domain.c | 157 ++++++++++++++++++++++++++++++++++++++++++++--
> src/qemu/qemu_domain.h | 24 ++++++-
> src/qemu/qemu_driver.c | 119 ++++-------------------------------
> src/qemu/qemu_migration.c | 72 ++++++++-------------
> 4 files changed, 213 insertions(+), 159 deletions(-)
>
Curious why the decision to use "Ptr" instead of inline struct for
current & completed? When I saw an alloc in the middle of a structure
and then a few free's along the way I began to wonder and attempt to
research the various paths to make sure all accesses knew/checked that
the impending deref would be OK - I marked those I found... I think one
or two may need double check since I assume you know the overall code
paths better. I see there's a path from qemuProcessReconnect() - that's
the libvirtd restart path right? So when the VIR_ALLOC() is done for
current/completed - who's address space is that? Wouldn't that be
address space from the "old" libvirtd?
Maybe I'm overthinking it on a Friday :-)
> diff --git a/src/qemu/qemu_domain.c b/src/qemu/qemu_domain.c
> index e9506e0..2c709e9 100644
> --- a/src/qemu/qemu_domain.c
> +++ b/src/qemu/qemu_domain.c
> @@ -163,11 +163,9 @@ qemuDomainObjResetAsyncJob(qemuDomainObjPrivatePtr priv)
> job->asyncOwner = 0;
> job->phase = 0;
> job->mask = DEFAULT_JOB_MASK;
> - job->start = 0;
> job->dump_memory_only = false;
> job->asyncAbort = false;
> - memset(&job->status, 0, sizeof(job->status));
> - memset(&job->info, 0, sizeof(job->info));
> + VIR_FREE(job->current);
This was one of those free paths where there were multiple callers and I
wasn't 100% other accesses needed to be checked w/r/t to this occurring
before an unchecked access in some other path...
> }
>
> void
> @@ -200,6 +198,7 @@ qemuDomainObjTransferJob(virDomainObjPtr obj)
> static void
> qemuDomainObjFreeJob(qemuDomainObjPrivatePtr priv)
> {
> + VIR_FREE(priv->job.current);
> virCondDestroy(&priv->job.cond);
> virCondDestroy(&priv->job.asyncCond);
> }
> @@ -211,6 +210,150 @@ qemuDomainTrackJob(qemuDomainJob job)
> }
>
>
> +int
> +qemuDomainJobInfoUpdateTime(qemuDomainJobInfoPtr jobInfo)
> +{
> + unsigned long long now;
> +
> + if (!jobInfo->started)
> + return 0;
any chance jobInfo == NULL? I think the only path where the caller
doesn't check for current (or completed) is qemuMigrationUpdateJobStatus
> +
> + if (virTimeMillisNow(&now) < 0)
> + return -1;
> +
> + jobInfo->timeElapsed = now - jobInfo->started;
> + return 0;
> +}
> +
> +int
> +qemuDomainJobInfoToInfo(qemuDomainJobInfoPtr jobInfo,
> + virDomainJobInfoPtr info)
> +{
Called with job.current checked
> + info->timeElapsed = jobInfo->timeElapsed;
> + info->timeRemaining = jobInfo->timeRemaining;
> +
> + info->memTotal = jobInfo->status.ram_total;
> + info->memRemaining = jobInfo->status.ram_remaining;
> + info->memProcessed = jobInfo->status.ram_transferred;
> +
> + info->fileTotal = jobInfo->status.disk_total;
> + info->fileRemaining = jobInfo->status.disk_remaining;
> + info->fileProcessed = jobInfo->status.disk_transferred;
> +
> + info->dataTotal = info->memTotal + info->fileTotal;
> + info->dataRemaining = info->memRemaining + info->fileRemaining;
> + info->dataProcessed = info->memProcessed + info->fileProcessed;
> +
> + return 0;
> +}
> +
> +int
> +qemuDomainJobInfoToParams(qemuDomainJobInfoPtr jobInfo,
> + int *type,
> + virTypedParameterPtr *params,
> + int *nparams)
> +{
Called with job.current (and .completed) checked...
> + qemuMonitorMigrationStatus *status = &jobInfo->status;
> + virTypedParameterPtr par = NULL;
> + int maxpar = 0;
> + int npar = 0;
> +
> + if (virTypedParamsAddULLong(&par, &npar, &maxpar,
> + VIR_DOMAIN_JOB_TIME_ELAPSED,
> + jobInfo->timeElapsed) < 0)
> + goto error;
> +
> + if (jobInfo->type == VIR_DOMAIN_JOB_BOUNDED &&
> + virTypedParamsAddULLong(&par, &npar, &maxpar,
> + VIR_DOMAIN_JOB_TIME_REMAINING,
> + jobInfo->timeRemaining) < 0)
> + goto error;
> +
> + if (status->downtime_set &&
> + virTypedParamsAddULLong(&par, &npar, &maxpar,
> + VIR_DOMAIN_JOB_DOWNTIME,
> + status->downtime) < 0)
> + goto error;
> +
> + if (virTypedParamsAddULLong(&par, &npar, &maxpar,
> + VIR_DOMAIN_JOB_DATA_TOTAL,
> + status->ram_total +
> + status->disk_total) < 0 ||
> + virTypedParamsAddULLong(&par, &npar, &maxpar,
> + VIR_DOMAIN_JOB_DATA_PROCESSED,
> + status->ram_transferred +
> + status->disk_transferred) < 0 ||
> + virTypedParamsAddULLong(&par, &npar, &maxpar,
> + VIR_DOMAIN_JOB_DATA_REMAINING,
> + status->ram_remaining +
> + status->disk_remaining) < 0)
> + goto error;
> +
> + if (virTypedParamsAddULLong(&par, &npar, &maxpar,
> + VIR_DOMAIN_JOB_MEMORY_TOTAL,
> + status->ram_total) < 0 ||
> + virTypedParamsAddULLong(&par, &npar, &maxpar,
> + VIR_DOMAIN_JOB_MEMORY_PROCESSED,
> + status->ram_transferred) < 0 ||
> + virTypedParamsAddULLong(&par, &npar, &maxpar,
> + VIR_DOMAIN_JOB_MEMORY_REMAINING,
> + status->ram_remaining) < 0)
> + goto error;
> +
> + if (status->ram_duplicate_set) {
> + if (virTypedParamsAddULLong(&par, &npar, &maxpar,
> + VIR_DOMAIN_JOB_MEMORY_CONSTANT,
> + status->ram_duplicate) < 0 ||
> + virTypedParamsAddULLong(&par, &npar, &maxpar,
> + VIR_DOMAIN_JOB_MEMORY_NORMAL,
> + status->ram_normal) < 0 ||
> + virTypedParamsAddULLong(&par, &npar, &maxpar,
> + VIR_DOMAIN_JOB_MEMORY_NORMAL_BYTES,
> + status->ram_normal_bytes) < 0)
I have a note in patch 2 about ram_normal and ram_normal_bytes vis-a-vis
qemu_monitor_json.c not checking status on their fetch and my latest
coverity run complaining about it.
> + goto error;
> + }
> +
> + if (virTypedParamsAddULLong(&par, &npar, &maxpar,
> + VIR_DOMAIN_JOB_DISK_TOTAL,
> + status->disk_total) < 0 ||
> + virTypedParamsAddULLong(&par, &npar, &maxpar,
> + VIR_DOMAIN_JOB_DISK_PROCESSED,
> + status->disk_transferred) < 0 ||
> + virTypedParamsAddULLong(&par, &npar, &maxpar,
> + VIR_DOMAIN_JOB_DISK_REMAINING,
> + status->disk_remaining) < 0)
> + goto error;
> +
> + if (status->xbzrle_set) {
> + if (virTypedParamsAddULLong(&par, &npar, &maxpar,
> + VIR_DOMAIN_JOB_COMPRESSION_CACHE,
> + status->xbzrle_cache_size) < 0 ||
> + virTypedParamsAddULLong(&par, &npar, &maxpar,
> + VIR_DOMAIN_JOB_COMPRESSION_BYTES,
> + status->xbzrle_bytes) < 0 ||
> + virTypedParamsAddULLong(&par, &npar, &maxpar,
> + VIR_DOMAIN_JOB_COMPRESSION_PAGES,
> + status->xbzrle_pages) < 0 ||
> + virTypedParamsAddULLong(&par, &npar, &maxpar,
> + VIR_DOMAIN_JOB_COMPRESSION_CACHE_MISSES,
> + status->xbzrle_cache_miss) < 0 ||
> + virTypedParamsAddULLong(&par, &npar, &maxpar,
> + VIR_DOMAIN_JOB_COMPRESSION_OVERFLOW,
> + status->xbzrle_overflow) < 0)
> + goto error;
> + }
> +
> + *type = jobInfo->type;
> + *params = par;
> + *nparams = npar;
> + return 0;
> +
> + error:
> + virTypedParamsFree(par, npar);
> + return -1;
> +}
> +
> +
> static void *
> qemuDomainObjPrivateAlloc(void)
> {
> @@ -1071,7 +1214,7 @@ qemuDomainObjBeginJobInternal(virQEMUDriverPtr driver,
> unsigned long long then;
> bool nested = job == QEMU_JOB_ASYNC_NESTED;
> virQEMUDriverConfigPtr cfg = virQEMUDriverGetConfig(driver);
> - int ret;
> + int ret = -1;
>
> VIR_DEBUG("Starting %s: %s (async=%s vm=%p name=%s)",
> job == QEMU_JOB_ASYNC ? "async job" : "job",
Just a note after this there's a
priv->jobs_queued++;
which can be decremented at cleanup; however, if virTimeMillisNow()
fails, then there's a return -1 *and* a virObjectUnref(obj) before the
virObjectRef(obj)...
> @@ -1127,9 +1270,11 @@ qemuDomainObjBeginJobInternal(virQEMUDriverPtr driver,
> qemuDomainAsyncJobTypeToString(asyncJob),
> obj, obj->def->name);
> qemuDomainObjResetAsyncJob(priv);
> + if (VIR_ALLOC(priv->job.current) < 0)
> + goto cleanup;
If this fails - what are the chances some other path will check/access
current without checking for it being NULL? Perhaps low and there's
going to be other problems anyway in a low memory situation...
> priv->job.asyncJob = asyncJob;
> priv->job.asyncOwner = virThreadSelfID();
> - priv->job.start = now;
> + priv->job.current->started = now;
> }
>
> if (qemuDomainTrackJob(job))
> @@ -1163,6 +1308,8 @@ qemuDomainObjBeginJobInternal(virQEMUDriverPtr driver,
> virReportSystemError(errno,
> "%s", _("cannot acquire job mutex"));
> }
> +
> + cleanup:
> priv->jobs_queued--;
> virObjectUnref(obj);
> virObjectUnref(cfg);
> diff --git a/src/qemu/qemu_domain.h b/src/qemu/qemu_domain.h
> index 8736889..119590e 100644
> --- a/src/qemu/qemu_domain.h
> +++ b/src/qemu/qemu_domain.h
> @@ -100,6 +100,18 @@ typedef enum {
> } qemuDomainAsyncJob;
> VIR_ENUM_DECL(qemuDomainAsyncJob)
>
> +typedef struct _qemuDomainJobInfo qemuDomainJobInfo;
> +typedef qemuDomainJobInfo *qemuDomainJobInfoPtr;
> +struct _qemuDomainJobInfo {
> + virDomainJobType type;
> + unsigned long long started; /* When the async job started */
> + /* Computed values */
> + unsigned long long timeElapsed;
> + unsigned long long timeRemaining;
> + /* Raw values from QEMU */
> + qemuMonitorMigrationStatus status;
> +};
> +
> struct qemuDomainJobObj {
> virCond cond; /* Use to coordinate jobs */
> qemuDomainJob active; /* Currently running job */
> @@ -110,10 +122,8 @@ struct qemuDomainJobObj {
> unsigned long long asyncOwner; /* Thread which set current async job */
> int phase; /* Job phase (mainly for migrations) */
> unsigned long long mask; /* Jobs allowed during async job */
> - unsigned long long start; /* When the async job started */
> bool dump_memory_only; /* use dump-guest-memory to do dump */
> - qemuMonitorMigrationStatus status; /* Raw async job progress data */
> - virDomainJobInfo info; /* Processed async job progress data */
> + qemuDomainJobInfoPtr current; /* async job progress data */
> bool asyncAbort; /* abort of async job requested */
> };
>
> @@ -378,4 +388,12 @@ bool qemuDomainDefCheckABIStability(virQEMUDriverPtr driver,
> bool qemuDomainAgentAvailable(qemuDomainObjPrivatePtr priv,
> bool reportError);
>
> +int qemuDomainJobInfoUpdateTime(qemuDomainJobInfoPtr jobInfo);
> +int qemuDomainJobInfoToInfo(qemuDomainJobInfoPtr jobInfo,
> + virDomainJobInfoPtr info);
> +int qemuDomainJobInfoToParams(qemuDomainJobInfoPtr jobInfo,
> + int *type,
> + virTypedParameterPtr *params,
> + int *nparams);
> +
Should any of these new defs need to have/use the ATTRIBUTE_NONNULL()
for params?
> #endif /* __QEMU_DOMAIN_H__ */
> diff --git a/src/qemu/qemu_driver.c b/src/qemu/qemu_driver.c
> index 239a300..265315d 100644
> --- a/src/qemu/qemu_driver.c
> +++ b/src/qemu/qemu_driver.c
> @@ -2655,15 +2655,13 @@ qemuDomainGetControlInfo(virDomainPtr dom,
> if (priv->monError) {
> info->state = VIR_DOMAIN_CONTROL_ERROR;
> } else if (priv->job.active) {
> - if (!priv->monStart) {
> + if (virTimeMillisNow(&info->stateTime) < 0)
> + goto cleanup;
> + if (priv->job.current) {
> info->state = VIR_DOMAIN_CONTROL_JOB;
> - if (virTimeMillisNow(&info->stateTime) < 0)
> - goto cleanup;
> - info->stateTime -= priv->job.start;
> + info->stateTime -= priv->job.current->started;
> } else {
> info->state = VIR_DOMAIN_CONTROL_OCCUPIED;
> - if (virTimeMillisNow(&info->stateTime) < 0)
> - goto cleanup;
> info->stateTime -= priv->monStart;
> }
> } else {
> @@ -3110,8 +3108,7 @@ qemuDomainSaveInternal(virQEMUDriverPtr driver, virDomainPtr dom,
> goto endjob;
> }
>
> - memset(&priv->job.info, 0, sizeof(priv->job.info));
> - priv->job.info.type = VIR_DOMAIN_JOB_UNBOUNDED;
> + priv->job.current->type = VIR_DOMAIN_JOB_UNBOUNDED;
Assumes current-> exists, but occurs after BeginAsyncJob() is
successful, so it seems safe.
>
> /* Pause */
> if (virDomainObjGetState(vm, NULL) == VIR_DOMAIN_RUNNING) {
> @@ -3460,6 +3457,7 @@ static int qemuDumpToFd(virQEMUDriverPtr driver, virDomainObjPtr vm,
> fd) < 0)
> return -1;
>
> + VIR_FREE(priv->job.current);
> priv->job.dump_memory_only = true;
>
> if (qemuDomainObjEnterMonitorAsync(driver, vm, asyncJob) < 0)
> @@ -11616,17 +11614,15 @@ static int qemuDomainGetJobInfo(virDomainPtr dom,
> goto cleanup;
>
> if (virDomainObjIsActive(vm)) {
> - if (priv->job.asyncJob && !priv->job.dump_memory_only) {
> - memcpy(info, &priv->job.info, sizeof(*info));
> -
> + if (priv->job.current) {
Here there is a check for job.current before usage
> /* Refresh elapsed time again just to ensure it
> * is fully updated. This is primarily for benefit
> * of incoming migration which we don't currently
> * monitor actively in the background thread
> */
> - if (virTimeMillisNow(&info->timeElapsed) < 0)
> + if (qemuDomainJobInfoUpdateTime(priv->job.current) < 0 ||
> + qemuDomainJobInfoToInfo(priv->job.current, info) < 0)
> goto cleanup;
> - info->timeElapsed -= priv->job.start;
> } else {
> memset(info, 0, sizeof(*info));
> info->type = VIR_DOMAIN_JOB_NONE;
> @@ -11655,9 +11651,6 @@ qemuDomainGetJobStats(virDomainPtr dom,
> {
> virDomainObjPtr vm;
> qemuDomainObjPrivatePtr priv;
> - virTypedParameterPtr par = NULL;
> - int maxpar = 0;
> - int npar = 0;
> int ret = -1;
>
> virCheckFlags(0, -1);
> @@ -11676,7 +11669,7 @@ qemuDomainGetJobStats(virDomainPtr dom,
> goto cleanup;
> }
>
> - if (!priv->job.asyncJob || priv->job.dump_memory_only) {
> + if (!priv->job.current) {
> *type = VIR_DOMAIN_JOB_NONE;
> *params = NULL;
> *nparams = 0;
Here there is a check for job.current before usage below
> @@ -11689,102 +11682,16 @@ qemuDomainGetJobStats(virDomainPtr dom,
> * of incoming migration which we don't currently
> * monitor actively in the background thread
> */
> - if (virTimeMillisNow(&priv->job.info.timeElapsed) < 0)
> + if (qemuDomainJobInfoUpdateTime(priv->job.current) < 0 ||
> + qemuDomainJobInfoToParams(priv->job.current,
> + type, params, nparams) < 0)
> goto cleanup;
> - priv->job.info.timeElapsed -= priv->job.start;
>
> - if (virTypedParamsAddULLong(&par, &npar, &maxpar,
> - VIR_DOMAIN_JOB_TIME_ELAPSED,
> - priv->job.info.timeElapsed) < 0)
> - goto cleanup;
> -
> - if (priv->job.info.type == VIR_DOMAIN_JOB_BOUNDED &&
> - virTypedParamsAddULLong(&par, &npar, &maxpar,
> - VIR_DOMAIN_JOB_TIME_REMAINING,
> - priv->job.info.timeRemaining) < 0)
> - goto cleanup;
> -
> - if (priv->job.status.downtime_set &&
> - virTypedParamsAddULLong(&par, &npar, &maxpar,
> - VIR_DOMAIN_JOB_DOWNTIME,
> - priv->job.status.downtime) < 0)
> - goto cleanup;
> -
> - if (virTypedParamsAddULLong(&par, &npar, &maxpar,
> - VIR_DOMAIN_JOB_DATA_TOTAL,
> - priv->job.info.dataTotal) < 0 ||
> - virTypedParamsAddULLong(&par, &npar, &maxpar,
> - VIR_DOMAIN_JOB_DATA_PROCESSED,
> - priv->job.info.dataProcessed) < 0 ||
> - virTypedParamsAddULLong(&par, &npar, &maxpar,
> - VIR_DOMAIN_JOB_DATA_REMAINING,
> - priv->job.info.dataRemaining) < 0)
> - goto cleanup;
> -
> - if (virTypedParamsAddULLong(&par, &npar, &maxpar,
> - VIR_DOMAIN_JOB_MEMORY_TOTAL,
> - priv->job.info.memTotal) < 0 ||
> - virTypedParamsAddULLong(&par, &npar, &maxpar,
> - VIR_DOMAIN_JOB_MEMORY_PROCESSED,
> - priv->job.info.memProcessed) < 0 ||
> - virTypedParamsAddULLong(&par, &npar, &maxpar,
> - VIR_DOMAIN_JOB_MEMORY_REMAINING,
> - priv->job.info.memRemaining) < 0)
> - goto cleanup;
> -
> - if (priv->job.status.ram_duplicate_set) {
> - if (virTypedParamsAddULLong(&par, &npar, &maxpar,
> - VIR_DOMAIN_JOB_MEMORY_CONSTANT,
> - priv->job.status.ram_duplicate) < 0 ||
> - virTypedParamsAddULLong(&par, &npar, &maxpar,
> - VIR_DOMAIN_JOB_MEMORY_NORMAL,
> - priv->job.status.ram_normal) < 0 ||
> - virTypedParamsAddULLong(&par, &npar, &maxpar,
> - VIR_DOMAIN_JOB_MEMORY_NORMAL_BYTES,
> - priv->job.status.ram_normal_bytes) < 0)
> - goto cleanup;
> - }
> -
> - if (virTypedParamsAddULLong(&par, &npar, &maxpar,
> - VIR_DOMAIN_JOB_DISK_TOTAL,
> - priv->job.info.fileTotal) < 0 ||
> - virTypedParamsAddULLong(&par, &npar, &maxpar,
> - VIR_DOMAIN_JOB_DISK_PROCESSED,
> - priv->job.info.fileProcessed) < 0 ||
> - virTypedParamsAddULLong(&par, &npar, &maxpar,
> - VIR_DOMAIN_JOB_DISK_REMAINING,
> - priv->job.info.fileRemaining) < 0)
> - goto cleanup;
> -
> - if (priv->job.status.xbzrle_set) {
> - if (virTypedParamsAddULLong(&par, &npar, &maxpar,
> - VIR_DOMAIN_JOB_COMPRESSION_CACHE,
> - priv->job.status.xbzrle_cache_size) < 0 ||
> - virTypedParamsAddULLong(&par, &npar, &maxpar,
> - VIR_DOMAIN_JOB_COMPRESSION_BYTES,
> - priv->job.status.xbzrle_bytes) < 0 ||
> - virTypedParamsAddULLong(&par, &npar, &maxpar,
> - VIR_DOMAIN_JOB_COMPRESSION_PAGES,
> - priv->job.status.xbzrle_pages) < 0 ||
> - virTypedParamsAddULLong(&par, &npar, &maxpar,
> - VIR_DOMAIN_JOB_COMPRESSION_CACHE_MISSES,
> - priv->job.status.xbzrle_cache_miss) < 0 ||
> - virTypedParamsAddULLong(&par, &npar, &maxpar,
> - VIR_DOMAIN_JOB_COMPRESSION_OVERFLOW,
> - priv->job.status.xbzrle_overflow) < 0)
> - goto cleanup;
> - }
> -
> - *type = priv->job.info.type;
> - *params = par;
> - *nparams = npar;
> ret = 0;
>
> cleanup:
> if (vm)
> virObjectUnlock(vm);
> - if (ret < 0)
> - virTypedParamsFree(par, npar);
> return ret;
> }
>
> diff --git a/src/qemu/qemu_migration.c b/src/qemu/qemu_migration.c
> index 9cfb77e..64adab4 100644
> --- a/src/qemu/qemu_migration.c
> +++ b/src/qemu/qemu_migration.c
> @@ -1723,8 +1723,9 @@ qemuMigrationUpdateJobStatus(virQEMUDriverPtr driver,
> qemuDomainAsyncJob asyncJob)
> {
> qemuDomainObjPrivatePtr priv = vm->privateData;
> - int ret;
> qemuMonitorMigrationStatus status;
> + qemuDomainJobInfoPtr jobInfo;
> + int ret;
>
> memset(&status, 0, sizeof(status));
>
> @@ -1738,62 +1739,40 @@ qemuMigrationUpdateJobStatus(virQEMUDriverPtr driver,
>
> qemuDomainObjExitMonitor(driver, vm);
>
> - priv->job.status = status;
> -
> - if (ret < 0 || virTimeMillisNow(&priv->job.info.timeElapsed) < 0)
> + if (ret < 0 ||
> + qemuDomainJobInfoUpdateTime(priv->job.current) < 0)
Here (and below) it's assumed job.current is valid.
> return -1;
>
> - priv->job.info.timeElapsed -= priv->job.start;
> -
> ret = -1;
> - switch (priv->job.status.status) {
> - case QEMU_MONITOR_MIGRATION_STATUS_INACTIVE:
> - priv->job.info.type = VIR_DOMAIN_JOB_NONE;
> - virReportError(VIR_ERR_OPERATION_FAILED,
> - _("%s: %s"), job, _("is not active"));
> - break;
> -
> + jobInfo = priv->job.current;
> + switch (status.status) {
> + case QEMU_MONITOR_MIGRATION_STATUS_COMPLETED:
> + jobInfo->type = VIR_DOMAIN_JOB_COMPLETED;
> + /* fall through */
> case QEMU_MONITOR_MIGRATION_STATUS_SETUP:
> - ret = 0;
> - break;
> -
> case QEMU_MONITOR_MIGRATION_STATUS_ACTIVE:
> - priv->job.info.fileTotal = priv->job.status.disk_total;
> - priv->job.info.fileRemaining = priv->job.status.disk_remaining;
> - priv->job.info.fileProcessed = priv->job.status.disk_transferred;
> -
> - priv->job.info.memTotal = priv->job.status.ram_total;
> - priv->job.info.memRemaining = priv->job.status.ram_remaining;
> - priv->job.info.memProcessed = priv->job.status.ram_transferred;
> -
> - priv->job.info.dataTotal =
> - priv->job.status.ram_total + priv->job.status.disk_total;
> - priv->job.info.dataRemaining =
> - priv->job.status.ram_remaining + priv->job.status.disk_remaining;
> - priv->job.info.dataProcessed =
> - priv->job.status.ram_transferred +
> - priv->job.status.disk_transferred;
> -
> ret = 0;
> break;
>
> - case QEMU_MONITOR_MIGRATION_STATUS_COMPLETED:
> - priv->job.info.type = VIR_DOMAIN_JOB_COMPLETED;
> - ret = 0;
> + case QEMU_MONITOR_MIGRATION_STATUS_INACTIVE:
> + jobInfo->type = VIR_DOMAIN_JOB_NONE;
> + virReportError(VIR_ERR_OPERATION_FAILED,
> + _("%s: %s"), job, _("is not active"));
> break;
>
> case QEMU_MONITOR_MIGRATION_STATUS_ERROR:
> - priv->job.info.type = VIR_DOMAIN_JOB_FAILED;
> + jobInfo->type = VIR_DOMAIN_JOB_FAILED;
> virReportError(VIR_ERR_OPERATION_FAILED,
> _("%s: %s"), job, _("unexpectedly failed"));
> break;
>
> case QEMU_MONITOR_MIGRATION_STATUS_CANCELLED:
> - priv->job.info.type = VIR_DOMAIN_JOB_CANCELLED;
> + jobInfo->type = VIR_DOMAIN_JOB_CANCELLED;
> virReportError(VIR_ERR_OPERATION_ABORTED,
> _("%s: %s"), job, _("canceled by client"));
> break;
> }
> + jobInfo->status = status;
>
> return ret;
> }
> @@ -1803,11 +1782,14 @@ qemuMigrationUpdateJobStatus(virQEMUDriverPtr driver,
> * QEMU reports failed migration.
> */
> static int
> -qemuMigrationWaitForCompletion(virQEMUDriverPtr driver, virDomainObjPtr vm,
> +qemuMigrationWaitForCompletion(virQEMUDriverPtr driver,
> + virDomainObjPtr vm,
> qemuDomainAsyncJob asyncJob,
> - virConnectPtr dconn, bool abort_on_error)
> + virConnectPtr dconn,
> + bool abort_on_error)
> {
> qemuDomainObjPrivatePtr priv = vm->privateData;
> + qemuDomainJobInfoPtr jobInfo = priv->job.current;
Hopefully nothing has cleared or could clear this before this point...
> const char *job;
> int pauseReason;
>
> @@ -1825,9 +1807,9 @@ qemuMigrationWaitForCompletion(virQEMUDriverPtr driver, virDomainObjPtr vm,
> job = _("job");
> }
>
> - priv->job.info.type = VIR_DOMAIN_JOB_UNBOUNDED;
> + jobInfo->type = VIR_DOMAIN_JOB_UNBOUNDED;
>
> - while (priv->job.info.type == VIR_DOMAIN_JOB_UNBOUNDED) {
> + while (jobInfo->type == VIR_DOMAIN_JOB_UNBOUNDED) {
> /* Poll every 50ms for progress & to allow cancellation */
> struct timespec ts = { .tv_sec = 0, .tv_nsec = 50 * 1000 * 1000ull };
>
> @@ -1856,13 +1838,13 @@ qemuMigrationWaitForCompletion(virQEMUDriverPtr driver, virDomainObjPtr vm,
> virObjectLock(vm);
> }
>
> - if (priv->job.info.type == VIR_DOMAIN_JOB_COMPLETED) {
> + if (jobInfo->type == VIR_DOMAIN_JOB_COMPLETED) {
> return 0;
> - } else if (priv->job.info.type == VIR_DOMAIN_JOB_UNBOUNDED) {
> + } else if (jobInfo->type == VIR_DOMAIN_JOB_UNBOUNDED) {
> /* The migration was aborted by us rather than QEMU itself so let's
> * update the job type and notify the caller to send migrate_cancel.
> */
> - priv->job.info.type = VIR_DOMAIN_JOB_FAILED;
> + jobInfo->type = VIR_DOMAIN_JOB_FAILED;
> return -2;
> } else {
> return -1;
> @@ -4912,7 +4894,7 @@ qemuMigrationJobStart(virQEMUDriverPtr driver,
> JOB_MASK(QEMU_JOB_MIGRATION_OP));
> }
>
> - priv->job.info.type = VIR_DOMAIN_JOB_UNBOUNDED;
> + priv->job.current->type = VIR_DOMAIN_JOB_UNBOUNDED;
This assumption of current-> should be OK since a failure from
qemuDomainObjBeginAsyncJob() wouldn't go through here.
>
> return 0;
> }
>
In general - I'm AOK with the code - my main concern has to do with
alloc'd memory...
John
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