[libvirt] [PATCH v3 REBASE 11/16] qemu: always get job condition on getting job stats

Nikolay Shirokovskiy nshirokovskiy at virtuozzo.com
Thu Aug 24 06:56:48 UTC 2017


Looks like it is more simple to drop this optimization as we are
going to add getting disks stats during migration via quering qemu
process and checking if we have to acquire job condition becomes
more complicate.
---
 src/qemu/qemu_driver.c | 15 +++++----------
 1 file changed, 5 insertions(+), 10 deletions(-)

diff --git a/src/qemu/qemu_driver.c b/src/qemu/qemu_driver.c
index e8c0d83..20ae879 100644
--- a/src/qemu/qemu_driver.c
+++ b/src/qemu/qemu_driver.c
@@ -12903,7 +12903,7 @@ qemuDomainGetJobStatsInternal(virQEMUDriverPtr driver,
                               qemuDomainJobInfoPtr jobInfo)
 {
     qemuDomainObjPrivatePtr priv = vm->privateData;
-    bool fetch = virQEMUCapsGet(priv->qemuCaps, QEMU_CAPS_MIGRATION_EVENT);
+    bool events = virQEMUCapsGet(priv->qemuCaps, QEMU_CAPS_MIGRATION_EVENT);
     int ret = -1;
 
     if (completed) {
@@ -12923,12 +12923,7 @@ qemuDomainGetJobStatsInternal(virQEMUDriverPtr driver,
         return -1;
     }
 
-    /* Do not ask QEMU if migration is not even running yet  */
-    if (!priv->job.current ||
-        priv->job.current->status == QEMU_DOMAIN_JOB_STATUS_ACTIVE)
-        fetch = false;
-
-    if (fetch && qemuDomainObjBeginJob(driver, vm, QEMU_JOB_QUERY) < 0)
+    if (qemuDomainObjBeginJob(driver, vm, QEMU_JOB_QUERY) < 0)
         return -1;
 
     if (!virDomainObjIsActive(vm)) {
@@ -12947,7 +12942,8 @@ qemuDomainGetJobStatsInternal(virQEMUDriverPtr driver,
     if (jobInfo->status == QEMU_DOMAIN_JOB_STATUS_ACTIVE ||
         jobInfo->status == QEMU_DOMAIN_JOB_STATUS_MIGRATING ||
         jobInfo->status == QEMU_DOMAIN_JOB_STATUS_POSTCOPY) {
-        if (fetch &&
+
+        if (events && jobInfo->status != QEMU_DOMAIN_JOB_STATUS_ACTIVE &&
             qemuMigrationFetchMigrationStats(driver, vm, QEMU_ASYNC_JOB_NONE,
                                              &jobInfo->stats, false) < 0)
             goto cleanup;
@@ -12959,8 +12955,7 @@ qemuDomainGetJobStatsInternal(virQEMUDriverPtr driver,
     ret = 0;
 
  cleanup:
-    if (fetch)
-        qemuDomainObjEndJob(driver, vm);
+    qemuDomainObjEndJob(driver, vm);
     return ret;
 }
 
-- 
1.8.3.1




More information about the libvir-list mailing list