[libvirt] [PATCH v5 02/10] qemu: Introduce QEMU_DOMAIN_JOB_STATS_TYPE_SAVEDUMP

[John Ferlan]

Add a TYPE_SAVEDUMP so that when coalescing stats for a save or
dump we don't needlessly try to get the mirror stats for a migration.
Other conditions can still use MIGRATION and SAVEDUMP interchangably
including usage of the @migStats field to fetch/store the data.

Signed-off-by: John Ferlan <jferlan at redhat.com>
---
 src/qemu/qemu_domain.c | 13 +++++++++++++
 src/qemu/qemu_domain.h |  1 +
 src/qemu/qemu_driver.c |  6 ++++--
 3 files changed, 18 insertions(+), 2 deletions(-)

diff --git a/src/qemu/qemu_domain.c b/src/qemu/qemu_domain.c
index 1456cd805..bdb942f57 100644
--- a/src/qemu/qemu_domain.c
+++ b/src/qemu/qemu_domain.c
@@ -461,6 +461,12 @@ qemuDomainJobInfoToInfo(qemuDomainJobInfoPtr jobInfo,
                               jobInfo->mirrorStats.transferred;
         break;
 
+    case QEMU_DOMAIN_JOB_STATS_TYPE_SAVEDUMP:
+        info->memTotal = jobInfo->stats.mig.ram_total;
+        info->memRemaining = jobInfo->stats.mig.ram_remaining;
+        info->memProcessed = jobInfo->stats.mig.ram_transferred;
+        break;
+
     case QEMU_DOMAIN_JOB_STATS_TYPE_NONE:
         break;
     }
@@ -585,6 +591,11 @@ qemuDomainMigrationJobInfoToParams(qemuDomainJobInfoPtr jobInfo,
                                 stats->ram_page_size) < 0)
         goto error;
 
+    /* The remaining stats are disk, mirror, or migration specific
+     * so if this is a SAVEDUMP, we can just skip them */
+    if (jobInfo->statsType == QEMU_DOMAIN_JOB_STATS_TYPE_SAVEDUMP)
+        goto done;
+
     if (virTypedParamsAddULLong(&par, &npar, &maxpar,
                                 VIR_DOMAIN_JOB_DISK_TOTAL,
                                 stats->disk_total +
@@ -630,6 +641,7 @@ qemuDomainMigrationJobInfoToParams(qemuDomainJobInfoPtr jobInfo,
                              stats->cpu_throttle_percentage) < 0)
         goto error;
 
+ done:
     *type = qemuDomainJobStatusToType(jobInfo->status);
     *params = par;
     *nparams = npar;
@@ -649,6 +661,7 @@ qemuDomainJobInfoToParams(qemuDomainJobInfoPtr jobInfo,
 {
     switch (jobInfo->statsType) {
     case QEMU_DOMAIN_JOB_STATS_TYPE_MIGRATION:
+    case QEMU_DOMAIN_JOB_STATS_TYPE_SAVEDUMP:
         return qemuDomainMigrationJobInfoToParams(jobInfo, type, params, nparams);
 
     case QEMU_DOMAIN_JOB_STATS_TYPE_NONE:
diff --git a/src/qemu/qemu_domain.h b/src/qemu/qemu_domain.h
index b913d1918..29a5c7c9a 100644
--- a/src/qemu/qemu_domain.h
+++ b/src/qemu/qemu_domain.h
@@ -113,6 +113,7 @@ typedef enum {
 typedef enum {
     QEMU_DOMAIN_JOB_STATS_TYPE_NONE = 0,
     QEMU_DOMAIN_JOB_STATS_TYPE_MIGRATION,
+    QEMU_DOMAIN_JOB_STATS_TYPE_SAVEDUMP,
 } qemuDomainJobStatsType;
 
 
diff --git a/src/qemu/qemu_driver.c b/src/qemu/qemu_driver.c
index 01d9bf1f6..382f03bbe 100644
--- a/src/qemu/qemu_driver.c
+++ b/src/qemu/qemu_driver.c
@@ -3386,7 +3386,7 @@ qemuDomainSaveInternal(virQEMUDriverPtr driver, virDomainPtr dom,
         goto endjob;
     }
 
-    priv->job.current->statsType = QEMU_DOMAIN_JOB_STATS_TYPE_MIGRATION;
+    priv->job.current->statsType = QEMU_DOMAIN_JOB_STATS_TYPE_SAVEDUMP;
 
     /* Pause */
     if (virDomainObjGetState(vm, NULL) == VIR_DOMAIN_RUNNING) {
@@ -3940,7 +3940,7 @@ qemuDomainCoreDumpWithFormat(virDomainPtr dom,
     }
 
     priv = vm->privateData;
-    priv->job.current->statsType = QEMU_DOMAIN_JOB_STATS_TYPE_MIGRATION;
+    priv->job.current->statsType = QEMU_DOMAIN_JOB_STATS_TYPE_SAVEDUMP;
 
     /* Migrate will always stop the VM, so the resume condition is
        independent of whether the stop command is issued.  */
@@ -13178,6 +13178,7 @@ qemuDomainGetJobInfoMigrationStats(virQEMUDriverPtr driver,
             return -1;
 
         if (jobInfo->status == QEMU_DOMAIN_JOB_STATUS_ACTIVE &&
+            jobInfo->statsType == QEMU_DOMAIN_JOB_STATS_TYPE_MIGRATION &&
             qemuMigrationFetchMirrorStats(driver, vm, QEMU_ASYNC_JOB_NONE,
                                           jobInfo) < 0)
             return -1;
@@ -13233,6 +13234,7 @@ qemuDomainGetJobStatsInternal(virQEMUDriverPtr driver,
 
     switch (jobInfo->statsType) {
     case QEMU_DOMAIN_JOB_STATS_TYPE_MIGRATION:
+    case QEMU_DOMAIN_JOB_STATS_TYPE_SAVEDUMP:
         if (qemuDomainGetJobInfoMigrationStats(driver, vm, jobInfo) < 0)
             goto cleanup;
         ret = 0;
-- 
2.13.6