[libvirt] [PATCH] Add missing checks for QEMU domain state in tunables APIs

[Daniel P. Berrange]

The methods qemuDomain{Get,Set}{Memory,Blkio,Scheduler}Parameters
all forgot to do a check on virDomainIsActive(), resulting in bogus
error messages from later parts of their impl

* src/qemu/qemu_driver.c: Add missing checks on virDomainIsActive()
---
 src/qemu/qemu_driver.c |   38 +++++++++++++++++++++++++++++++++++++-
 1 files changed, 37 insertions(+), 1 deletions(-)

diff --git a/src/qemu/qemu_driver.c b/src/qemu/qemu_driver.c
index e97c1d9..f54e41c 100644
--- a/src/qemu/qemu_driver.c
+++ b/src/qemu/qemu_driver.c
@@ -4245,6 +4245,12 @@ static int qemuDomainSetBlkioParameters(virDomainPtr dom,
         goto cleanup;
     }
 
+    if (!virDomainObjIsActive(vm)) {
+        qemuReportError(VIR_ERR_OPERATION_INVALID,
+                        "%s", _("domain is not running"));
+        goto cleanup;
+    }
+
     if (virCgroupForDomain(driver->cgroup, vm->def->name, &group, 0) != 0) {
         qemuReportError(VIR_ERR_INTERNAL_ERROR,
                         _("cannot find cgroup for domain %s"), vm->def->name);
@@ -4321,6 +4327,12 @@ static int qemuDomainGetBlkioParameters(virDomainPtr dom,
         goto cleanup;
     }
 
+    if (!virDomainObjIsActive(vm)) {
+        qemuReportError(VIR_ERR_OPERATION_INVALID,
+                        "%s", _("domain is not running"));
+        goto cleanup;
+    }
+
     if ((*nparams) == 0) {
         /* Current number of blkio parameters supported by cgroups */
         *nparams = QEMU_NB_BLKIO_PARAM;
@@ -4405,6 +4417,12 @@ static int qemuDomainSetMemoryParameters(virDomainPtr dom,
         goto cleanup;
     }
 
+    if (!virDomainObjIsActive(vm)) {
+        qemuReportError(VIR_ERR_OPERATION_INVALID,
+                        "%s", _("domain is not running"));
+        goto cleanup;
+    }
+
     if (virCgroupForDomain(driver->cgroup, vm->def->name, &group, 0) != 0) {
         qemuReportError(VIR_ERR_INTERNAL_ERROR,
                         _("cannot find cgroup for domain %s"), vm->def->name);
@@ -4508,6 +4526,12 @@ static int qemuDomainGetMemoryParameters(virDomainPtr dom,
         goto cleanup;
     }
 
+    if (!virDomainObjIsActive(vm)) {
+        qemuReportError(VIR_ERR_OPERATION_INVALID,
+                        "%s", _("domain is not running"));
+        goto cleanup;
+    }
+
     if ((*nparams) == 0) {
         /* Current number of memory parameters supported by cgroups */
         *nparams = QEMU_NB_MEM_PARAM;
@@ -4621,6 +4645,12 @@ static int qemuSetSchedulerParameters(virDomainPtr dom,
         goto cleanup;
     }
 
+    if (!virDomainObjIsActive(vm)) {
+        qemuReportError(VIR_ERR_OPERATION_INVALID,
+                        "%s", _("domain is not running"));
+        goto cleanup;
+    }
+
     if (virCgroupForDomain(driver->cgroup, vm->def->name, &group, 0) != 0) {
         qemuReportError(VIR_ERR_INTERNAL_ERROR,
                         _("cannot find cgroup for domain %s"), vm->def->name);
@@ -4692,6 +4722,12 @@ static int qemuGetSchedulerParameters(virDomainPtr dom,
         goto cleanup;
     }
 
+    if (!virDomainObjIsActive(vm)) {
+        qemuReportError(VIR_ERR_OPERATION_INVALID,
+                        "%s", _("domain is not running"));
+        goto cleanup;
+    }
+
     if (virCgroupForDomain(driver->cgroup, vm->def->name, &group, 0) != 0) {
         qemuReportError(VIR_ERR_INTERNAL_ERROR,
                         _("cannot find cgroup for domain %s"), vm->def->name);
@@ -4751,7 +4787,7 @@ qemudDomainBlockStats (virDomainPtr dom,
     if (qemuDomainObjBeginJob(vm) < 0)
         goto cleanup;
 
-    if (!virDomainObjIsActive (vm)) {
+    if (!virDomainObjIsActive(vm)) {
         qemuReportError(VIR_ERR_OPERATION_INVALID,
                         "%s", _("domain is not running"));
         goto endjob;
-- 
1.7.4