[PATCH 2/5] hypervisor: domain_job: add maxQueuedJobs

[Kristina Hanicova]

This patch adds a new variable maxQueuedJobs into the job object
as it is the last hypervisor-based part of the begin job. Since
this patch, it will not be necessary to propagate driver
structure into the job functions.

Signed-off-by: Kristina Hanicova <khanicov at redhat.com>
---
 src/hypervisor/domain_job.h |  1 +
 src/qemu/qemu_domain.c      |  3 +++
 src/qemu/qemu_domainjob.c   | 11 +++++------
 3 files changed, 9 insertions(+), 6 deletions(-)

diff --git a/src/hypervisor/domain_job.h b/src/hypervisor/domain_job.h
index 838cfd16e3..7f35d5ee85 100644
--- a/src/hypervisor/domain_job.h
+++ b/src/hypervisor/domain_job.h
@@ -155,6 +155,7 @@ struct _virDomainJobObj {
     virCond cond;               /* Use to coordinate jobs */
 
     int jobsQueued;
+    unsigned int maxQueuedJobs;
 
     /* The following members are for VIR_JOB_* */
     virDomainJob active;        /* currently running job */
diff --git a/src/qemu/qemu_domain.c b/src/qemu/qemu_domain.c
index 94b50420fe..7ac7c3c05a 100644
--- a/src/qemu/qemu_domain.c
+++ b/src/qemu/qemu_domain.c
@@ -1758,6 +1758,7 @@ static void *
 qemuDomainObjPrivateAlloc(void *opaque)
 {
     g_autoptr(qemuDomainObjPrivate) priv = g_new0(qemuDomainObjPrivate, 1);
+    g_autoptr(virQEMUDriverConfig) cfg = virQEMUDriverGetConfig(opaque);
 
     if (virDomainObjInitJob(&priv->job, &qemuPrivateJobCallbacks) < 0) {
         virReportSystemError(errno, "%s",
@@ -1770,6 +1771,8 @@ qemuDomainObjPrivateAlloc(void *opaque)
 
     priv->blockjobs = virHashNew(virObjectUnref);
 
+    priv->job.maxQueuedJobs = cfg->maxQueuedJobs;
+
     /* agent commands block by default, user can choose different behavior */
     priv->agentTimeout = VIR_DOMAIN_AGENT_RESPONSE_TIMEOUT_BLOCK;
     priv->migMaxBandwidth = QEMU_DOMAIN_MIG_BANDWIDTH_MAX;
diff --git a/src/qemu/qemu_domainjob.c b/src/qemu/qemu_domainjob.c
index 11f30de136..0e1c7210c5 100644
--- a/src/qemu/qemu_domainjob.c
+++ b/src/qemu/qemu_domainjob.c
@@ -723,7 +723,7 @@ qemuDomainObjReleaseAsyncJob(virDomainObj *obj)
  *         -1 otherwise.
  */
 static int ATTRIBUTE_NONNULL(1)
-qemuDomainObjBeginJobInternal(virQEMUDriver *driver,
+qemuDomainObjBeginJobInternal(virQEMUDriver *driver G_GNUC_UNUSED,
                               virDomainObj *obj,
                               virDomainJob job,
                               virDomainAgentJob agentJob,
@@ -734,7 +734,6 @@ qemuDomainObjBeginJobInternal(virQEMUDriver *driver,
     unsigned long long now;
     unsigned long long then;
     bool nested = job == VIR_JOB_ASYNC_NESTED;
-    g_autoptr(virQEMUDriverConfig) cfg = virQEMUDriverGetConfig(driver);
     const char *blocker = NULL;
     const char *agentBlocker = NULL;
     int ret = -1;
@@ -763,8 +762,8 @@ qemuDomainObjBeginJobInternal(virQEMUDriver *driver,
  retry:
     if (job != VIR_JOB_ASYNC &&
         job != VIR_JOB_DESTROY &&
-        cfg->maxQueuedJobs &&
-        priv->job.jobsQueued > cfg->maxQueuedJobs) {
+        priv->job.maxQueuedJobs &&
+        priv->job.jobsQueued > priv->job.maxQueuedJobs) {
         goto error;
     }
 
@@ -907,8 +906,8 @@ qemuDomainObjBeginJobInternal(virQEMUDriver *driver,
                            _("cannot acquire state change lock"));
         }
         ret = -2;
-    } else if (cfg->maxQueuedJobs &&
-               priv->job.jobsQueued > cfg->maxQueuedJobs) {
+    } else if (priv->job.maxQueuedJobs &&
+               priv->job.jobsQueued > priv->job.maxQueuedJobs) {
         if (blocker && agentBlocker) {
             virReportError(VIR_ERR_OPERATION_FAILED,
                            _("cannot acquire state change "
-- 
2.37.1