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Report full errors from virCgroupNew* 

Instead of returning raw errno values, report full libvirt
errors in virCgroupNew* functions.

Signed-off-by: Daniel P. Berrange <berrange@redhat.com>
This commit is contained in:
Daniel P. Berrange 2013-07-04 16:49:24 +01:00
parent f5384eed3f
commit b64dabff27
9 changed files with 418 additions and 443 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

2
src/libvirt_private.syms
View File

@ -1156,6 +1156,7 @@ virCgroupAddTaskController;
virCgroupAllowDevice;
virCgroupAllowDeviceMajor;
virCgroupAllowDevicePath;
virCgroupAvailable;
virCgroupControllerTypeFromString;
virCgroupControllerTypeToString;
virCgroupDenyAllDevices;
@ -1188,6 +1189,7 @@ virCgroupNewDomainDriver;
virCgroupNewDomainPartition;
virCgroupNewDriver;
virCgroupNewEmulator;
virCgroupNewIgnoreError;
virCgroupNewPartition;
virCgroupNewSelf;
virCgroupNewVcpu;

65
src/lxc/lxc_cgroup.c
View File

@ -306,33 +306,29 @@ cleanup:
int virLXCCgroupGetMeminfo(virLXCMeminfoPtr meminfo)
{
int ret;
int ret = -1, rc;
virCgroupPtr cgroup;
ret = virCgroupNewSelf(&cgroup);
if (ret < 0) {
virReportSystemError(-ret, "%s",
_("Unable to get cgroup for container"));
return ret;
}
if (virCgroupNewSelf(&cgroup) < 0)
return -1;
ret = virLXCCgroupGetMemStat(cgroup, meminfo);
if (ret < 0) {
virReportSystemError(-ret, "%s",
rc = virLXCCgroupGetMemStat(cgroup, meminfo);
if (rc < 0) {
virReportSystemError(-rc, "%s",
_("Unable to get memory cgroup stat info"));
goto cleanup;
}
ret = virLXCCgroupGetMemTotal(cgroup, meminfo);
if (ret < 0) {
virReportSystemError(-ret, "%s",
rc = virLXCCgroupGetMemTotal(cgroup, meminfo);
if (rc < 0) {
virReportSystemError(-rc, "%s",
_("Unable to get memory cgroup total"));
goto cleanup;
}
ret = virLXCCgroupGetMemUsage(cgroup, meminfo);
if (ret < 0) {
virReportSystemError(-ret, "%s",
rc = virLXCCgroupGetMemUsage(cgroup, meminfo);
if (rc < 0) {
virReportSystemError(-rc, "%s",
_("Unable to get memory cgroup stat usage"));
goto cleanup;
}
@ -541,7 +537,6 @@ cleanup:
virCgroupPtr virLXCCgroupCreate(virDomainDefPtr def, bool startup)
{
int rc;
virCgroupPtr parent = NULL;
virCgroupPtr cgroup = NULL;
@ -569,51 +564,31 @@ virCgroupPtr virLXCCgroupCreate(virDomainDefPtr def, bool startup)
}
/* We only auto-create the default partition. In other
* cases we expec the sysadmin/app to have done so */
rc = virCgroupNewPartition(def->resource->partition,
if (virCgroupNewPartition(def->resource->partition,
STREQ(def->resource->partition, "/machine"),
-1,
&parent);
if (rc != 0) {
virReportSystemError(-rc,
_("Unable to initialize %s cgroup"),
def->resource->partition);
&parent) < 0)
goto cleanup;
}
rc = virCgroupNewDomainPartition(parent,
if (virCgroupNewDomainPartition(parent,
"lxc",
def->name,
true,
&cgroup);
if (rc != 0) {
virReportSystemError(-rc,
_("Unable to create cgroup for %s"),
def->name);
&cgroup) < 0)
goto cleanup;
}
} else {
rc = virCgroupNewDriver("lxc",
if (virCgroupNewDriver("lxc",
true,
-1,
&parent);
if (rc != 0) {
virReportSystemError(-rc,
_("Unable to create cgroup for %s"),
def->name);
&parent) < 0)
goto cleanup;
}
rc = virCgroupNewDomainDriver(parent,
if (virCgroupNewDomainDriver(parent,
def->name,
true,
&cgroup);
if (rc != 0) {
virReportSystemError(-rc,
_("Unable to create cgroup for %s"),
def->name);
&cgroup) < 0)
goto cleanup;
}
}
cleanup:
virCgroupFree(&parent);

6
src/lxc/lxc_container.c
View File

@ -1466,7 +1466,6 @@ static int lxcContainerSetupPivotRoot(virDomainDefPtr vmDef,
virSecurityManagerPtr securityDriver)
{
virCgroupPtr cgroup = NULL;
int rc;
int ret = -1;
char *sec_mount_options;
char *stateDir = NULL;
@ -1478,11 +1477,8 @@ static int lxcContainerSetupPivotRoot(virDomainDefPtr vmDef,
/* Before pivoting we need to identify any
* cgroups controllers that are mounted */
if ((rc = virCgroupNewSelf(&cgroup)) != 0) {
virReportSystemError(-rc, "%s",
_("Cannot identify cgroup placement"));
if (virCgroupNewSelf(&cgroup) < 0)
goto cleanup;
}
if (virFileResolveAllLinks(LXC_STATE_DIR, &stateDir) < 0)
goto cleanup;

6
src/lxc/lxc_fuse.c
View File

@ -139,8 +139,10 @@ static int lxcProcReadMeminfo(char *hostpath, virDomainDefPtr def,
virBuffer buffer = VIR_BUFFER_INITIALIZER;
virBufferPtr new_meminfo = &buffer;
if ((res = virLXCCgroupGetMeminfo(&meminfo)) < 0)
return res;
if (virLXCCgroupGetMeminfo(&meminfo) < 0) {
virErrorSetErrnoFromLastError();
return -errno;
}
fd = fopen(hostpath, "r");
if (fd == NULL) {

66
src/qemu/qemu_cgroup.c
View File

@ -731,6 +731,9 @@ qemuInitCgroup(virQEMUDriverPtr driver,
if (!cfg->privileged)
goto done;
if (!virCgroupAvailable())
goto done;
virCgroupFree(&priv->cgroup);
if (!vm->def->resource && startup) {
@ -757,65 +760,39 @@ qemuInitCgroup(virQEMUDriverPtr driver,
}
/* We only auto-create the default partition. In other
* cases we expec the sysadmin/app to have done so */
rc = virCgroupNewPartition(vm->def->resource->partition,
if (virCgroupNewPartition(vm->def->resource->partition,
STREQ(vm->def->resource->partition, "/machine"),
cfg->cgroupControllers,
&parent);
if (rc != 0) {
if (rc == -ENXIO ||
rc == -EPERM ||
rc == -EACCES) { /* No cgroups mounts == success */
VIR_DEBUG("No cgroups present/configured/accessible, ignoring error");
&parent) < 0) {
if (virCgroupNewIgnoreError())
goto done;
}
virReportSystemError(-rc,
_("Unable to initialize %s cgroup"),
vm->def->resource->partition);
goto cleanup;
}
rc = virCgroupNewDomainPartition(parent,
if (virCgroupNewDomainPartition(parent,
"qemu",
vm->def->name,
true,
&priv->cgroup);
if (rc != 0) {
virReportSystemError(-rc,
_("Unable to create cgroup for %s"),
vm->def->name);
&priv->cgroup) < 0)
goto cleanup;
}
} else {
rc = virCgroupNewDriver("qemu",
if (virCgroupNewDriver("qemu",
true,
cfg->cgroupControllers,
&parent);
if (rc != 0) {
if (rc == -ENXIO ||
rc == -EPERM ||
rc == -EACCES) { /* No cgroups mounts == success */
VIR_DEBUG("No cgroups present/configured/accessible, ignoring error");
&parent) < 0) {
if (virCgroupNewIgnoreError())
goto done;
}
virReportSystemError(-rc,
_("Unable to create cgroup for %s"),
vm->def->name);
goto cleanup;
}
rc = virCgroupNewDomainDriver(parent,
if (virCgroupNewDomainDriver(parent,
vm->def->name,
true,
&priv->cgroup);
if (rc != 0) {
virReportSystemError(-rc,
_("Unable to create cgroup for %s"),
vm->def->name);
&priv->cgroup) < 0)
goto cleanup;
}
}
done:
rc = 0;
@ -994,14 +971,8 @@ qemuSetupCgroupForVcpu(virDomainObjPtr vm)
}
for (i = 0; i < priv->nvcpupids; i++) {
rc = virCgroupNewVcpu(priv->cgroup, i, true, &cgroup_vcpu);
if (rc < 0) {
virReportSystemError(-rc,
_("Unable to create vcpu cgroup for %s(vcpu:"
" %zu)"),
vm->def->name, i);
if (virCgroupNewVcpu(priv->cgroup, i, true, &cgroup_vcpu) < 0)
goto cleanup;
}
/* move the thread for vcpu to sub dir */
rc = virCgroupAddTask(cgroup_vcpu, priv->vcpupids[i]);
@ -1061,7 +1032,7 @@ qemuSetupCgroupForEmulator(virQEMUDriverPtr driver,
qemuDomainObjPrivatePtr priv = vm->privateData;
unsigned long long period = vm->def->cputune.emulator_period;
long long quota = vm->def->cputune.emulator_quota;
int rc;
int rc = -1;
if ((period || quota) &&
!virCgroupHasController(priv->cgroup, VIR_CGROUP_CONTROLLER_CPU)) {
@ -1073,13 +1044,8 @@ qemuSetupCgroupForEmulator(virQEMUDriverPtr driver,
if (priv->cgroup == NULL)
return 0; /* Not supported, so claim success */
rc = virCgroupNewEmulator(priv->cgroup, true, &cgroup_emulator);
if (rc < 0) {
virReportSystemError(-rc,
_("Unable to create emulator cgroup for %s"),
vm->def->name);
if (virCgroupNewEmulator(priv->cgroup, true, &cgroup_emulator) < 0)
goto cleanup;
}
rc = virCgroupMoveTask(priv->cgroup, cgroup_emulator);
if (rc < 0) {

64
src/qemu/qemu_driver.c
View File

@ -3940,14 +3940,8 @@ static int qemuDomainHotplugVcpus(virQEMUDriverPtr driver,
if (priv->cgroup) {
int rv = -1;
/* Create cgroup for the onlined vcpu */
rv = virCgroupNewVcpu(priv->cgroup, i, true, &cgroup_vcpu);
if (rv < 0) {
virReportSystemError(-rv,
_("Unable to create vcpu cgroup for %s(vcpu:"
" %zu)"),
vm->def->name, i);
if (virCgroupNewVcpu(priv->cgroup, i, true, &cgroup_vcpu) < 0)
goto cleanup;
}
/* Add vcpu thread to the cgroup */
rv = virCgroupAddTask(cgroup_vcpu, cpupids[i]);
@ -4008,16 +4002,8 @@ static int qemuDomainHotplugVcpus(virQEMUDriverPtr driver,
virDomainVcpuPinDefPtr vcpupin = NULL;
if (priv->cgroup) {
int rv = -1;
rv = virCgroupNewVcpu(priv->cgroup, i, false, &cgroup_vcpu);
if (rv < 0) {
virReportSystemError(-rv,
_("Unable to access vcpu cgroup for %s(vcpu:"
" %zu)"),
vm->def->name, i);
if (virCgroupNewVcpu(priv->cgroup, i, false, &cgroup_vcpu) < 0)
goto cleanup;
}
/* Remove cgroup for the offlined vcpu */
virCgroupRemove(cgroup_vcpu);
@ -4358,8 +4344,9 @@ qemuDomainPinVcpuFlags(virDomainPtr dom,
/* Configure the corresponding cpuset cgroup before set affinity. */
if (virCgroupHasController(priv->cgroup, VIR_CGROUP_CONTROLLER_CPUSET)) {
if (virCgroupNewVcpu(priv->cgroup, vcpu, false, &cgroup_vcpu) == 0 &&
qemuSetupCgroupVcpuPin(cgroup_vcpu, newVcpuPin, newVcpuPinNum, vcpu) < 0) {
if (virCgroupNewVcpu(priv->cgroup, vcpu, false, &cgroup_vcpu) < 0)
goto cleanup;
if (qemuSetupCgroupVcpuPin(cgroup_vcpu, newVcpuPin, newVcpuPinNum, vcpu) < 0) {
virReportError(VIR_ERR_OPERATION_INVALID,
_("failed to set cpuset.cpus in cgroup"
" for vcpu %d"), vcpu);
@ -4620,9 +4607,9 @@ qemuDomainPinEmulator(virDomainPtr dom,
VIR_CGROUP_CONTROLLER_CPUSET)) {
/*
* Configure the corresponding cpuset cgroup.
* If no cgroup for domain or hypervisor exists, do nothing.
*/
if (virCgroupNewEmulator(priv->cgroup, false, &cgroup_emulator) == 0) {
if (virCgroupNewEmulator(priv->cgroup, false, &cgroup_emulator) < 0)
goto cleanup;
if (qemuSetupCgroupEmulatorPin(cgroup_emulator,
newVcpuPin[0]->cpumask) < 0) {
virReportError(VIR_ERR_OPERATION_INVALID, "%s",
@ -4630,7 +4617,6 @@ qemuDomainPinEmulator(virDomainPtr dom,
" for emulator threads"));
goto cleanup;
}
}
} else {
if (virProcessSetAffinity(pid, pcpumap) < 0) {
virReportError(VIR_ERR_SYSTEM_ERROR, "%s",
@ -8596,7 +8582,6 @@ qemuSetVcpusBWLive(virDomainObjPtr vm, virCgroupPtr cgroup,
size_t i;
qemuDomainObjPrivatePtr priv = vm->privateData;
virCgroupPtr cgroup_vcpu = NULL;
int rc;
if (period == 0 && quota == 0)
return 0;
@ -8607,14 +8592,8 @@ qemuSetVcpusBWLive(virDomainObjPtr vm, virCgroupPtr cgroup,
*/
if (priv->nvcpupids != 0 && priv->vcpupids[0] != vm->pid) {
for (i = 0; i < priv->nvcpupids; i++) {
rc = virCgroupNewVcpu(cgroup, i, false, &cgroup_vcpu);
if (rc < 0) {
virReportSystemError(-rc,
_("Unable to find vcpu cgroup for %s(vcpu:"
" %zu)"),
vm->def->name, i);
if (virCgroupNewVcpu(cgroup, i, false, &cgroup_vcpu) < 0)
goto cleanup;
}
if (qemuSetupCgroupVcpuBW(cgroup_vcpu, period, quota) < 0)
goto cleanup;
@ -8636,7 +8615,6 @@ qemuSetEmulatorBandwidthLive(virDomainObjPtr vm, virCgroupPtr cgroup,
{
qemuDomainObjPrivatePtr priv = vm->privateData;
virCgroupPtr cgroup_emulator = NULL;
int rc;
if (period == 0 && quota == 0)
return 0;
@ -8645,13 +8623,8 @@ qemuSetEmulatorBandwidthLive(virDomainObjPtr vm, virCgroupPtr cgroup,
return 0;
}
rc = virCgroupNewEmulator(cgroup, false, &cgroup_emulator);
if (rc < 0) {
virReportSystemError(-rc,
_("Unable to find emulator cgroup for %s"),
vm->def->name);
if (virCgroupNewEmulator(cgroup, false, &cgroup_emulator) < 0)
goto cleanup;
}
if (qemuSetupCgroupVcpuBW(cgroup_emulator, period, quota) < 0)
goto cleanup;
@ -8897,13 +8870,8 @@ qemuGetVcpusBWLive(virDomainObjPtr vm,
}
/* get period and quota for vcpu0 */
rc = virCgroupNewVcpu(priv->cgroup, 0, false, &cgroup_vcpu);
if (!cgroup_vcpu) {
virReportSystemError(-rc,
_("Unable to find vcpu cgroup for %s(vcpu: 0)"),
vm->def->name);
if (virCgroupNewVcpu(priv->cgroup, 0, false, &cgroup_vcpu) < 0)
goto cleanup;
}
rc = qemuGetVcpuBWLive(cgroup_vcpu, period, quota);
if (rc < 0)
@ -8935,13 +8903,8 @@ qemuGetEmulatorBandwidthLive(virDomainObjPtr vm, virCgroupPtr cgroup,
}
/* get period and quota for emulator */
rc = virCgroupNewEmulator(cgroup, false, &cgroup_emulator);
if (!cgroup_emulator) {
virReportSystemError(-rc,
_("Unable to find emulator cgroup for %s"),
vm->def->name);
if (virCgroupNewEmulator(cgroup, false, &cgroup_emulator) < 0)
goto cleanup;
}
rc = qemuGetVcpuBWLive(cgroup_emulator, period, quota);
if (rc < 0)
@ -15537,11 +15500,8 @@ getSumVcpuPercpuStats(virDomainObjPtr vm,
unsigned long long tmp;
size_t j;
if (virCgroupNewVcpu(priv->cgroup, i, false, &group_vcpu) < 0) {
virReportError(VIR_ERR_INTERNAL_ERROR, "%s",
_("error accessing cgroup cpuacct for vcpu"));
if (virCgroupNewVcpu(priv->cgroup, i, false, &group_vcpu) < 0)
goto cleanup;
}
if (virCgroupGetCpuacctPercpuUsage(group_vcpu, &buf) < 0)
goto cleanup;

455
src/util/vircgroup.c
View File

@ -67,6 +67,30 @@ typedef enum {
*/
} virCgroupFlags;
bool virCgroupAvailable(void)
{
FILE *mounts = NULL;
struct mntent entry;
bool ret = false;
char buf[CGROUP_MAX_VAL];
if (!virFileExists("/proc/cgroups"))
return false;
if (!(mounts = fopen("/proc/mounts", "r")))
return false;
while (getmntent_r(mounts, &entry, buf, sizeof(buf)) != NULL) {
if (STREQ(entry.mnt_type, "cgroup")) {
ret = true;
break;
}
}
VIR_FORCE_FCLOSE(mounts);
return ret;
}
/**
* virCgroupFree:
*
@ -116,13 +140,13 @@ static int virCgroupCopyMounts(virCgroupPtr group,
if (!parent->controllers[i].mountPoint)
continue;
if (VIR_STRDUP_QUIET(group->controllers[i].mountPoint,
if (VIR_STRDUP(group->controllers[i].mountPoint,
parent->controllers[i].mountPoint) < 0)
return -ENOMEM;
return -1;
if (VIR_STRDUP_QUIET(group->controllers[i].linkPoint,
if (VIR_STRDUP(group->controllers[i].linkPoint,
parent->controllers[i].linkPoint) < 0)
return -ENOMEM;
return -1;
}
return 0;
}
@ -140,8 +164,9 @@ static int virCgroupDetectMounts(virCgroupPtr group)
mounts = fopen("/proc/mounts", "r");
if (mounts == NULL) {
VIR_ERROR(_("Unable to open /proc/mounts"));
return -ENOENT;
virReportSystemError(errno, "%s",
_("Unable to open /proc/mounts"));
return -1;
}
while (getmntent_r(mounts, &entry, buf, sizeof(buf)) != NULL) {
@ -171,13 +196,15 @@ static int virCgroupDetectMounts(virCgroupPtr group)
struct stat sb;
char *tmp2;
if (VIR_STRDUP_QUIET(group->controllers[i].mountPoint,
if (VIR_STRDUP(group->controllers[i].mountPoint,
entry.mnt_dir) < 0)
goto error;
tmp2 = strrchr(entry.mnt_dir, '/');
if (!tmp2) {
errno = EINVAL;
virReportError(VIR_ERR_INTERNAL_ERROR,
_("Missing '/' separator in cgroup mount '%s'"),
entry.mnt_dir);
goto error;
}
*tmp2 = '\0';
@ -195,6 +222,8 @@ static int virCgroupDetectMounts(virCgroupPtr group)
typestr, entry.mnt_dir, linksrc);
VIR_FREE(linksrc);
} else {
virReportSystemError(errno,
_("Cannot stat %s"), linksrc);
goto error;
}
} else {
@ -218,7 +247,7 @@ static int virCgroupDetectMounts(virCgroupPtr group)
error:
VIR_FORCE_FCLOSE(mounts);
return -errno;
return -1;
}
@ -232,8 +261,8 @@ static int virCgroupCopyPlacement(virCgroupPtr group,
continue;
if (path[0] == '/') {
if (VIR_STRDUP_QUIET(group->controllers[i].placement, path) < 0)
return -ENOMEM;
if (VIR_STRDUP(group->controllers[i].placement, path) < 0)
return -1;
} else {
/*
* parent=="/" + path="" => "/"
@ -246,7 +275,7 @@ static int virCgroupCopyPlacement(virCgroupPtr group,
(STREQ(parent->controllers[i].placement, "/") ||
STREQ(path, "") ? "" : "/"),
path) < 0)
return -ENOMEM;
return -1;
}
}
@ -282,11 +311,13 @@ static int virCgroupDetectPlacement(virCgroupPtr group,
size_t i;
FILE *mapping = NULL;
char line[1024];
int ret = -1;
mapping = fopen("/proc/self/cgroup", "r");
if (mapping == NULL) {
VIR_ERROR(_("Unable to open /proc/self/cgroup"));
return -ENOENT;
virReportSystemError(errno, "%s",
_("Unable to open /proc/self/cgroup"));
return -1;
}
while (fgets(line, sizeof(line), mapping) != NULL) {
@ -329,7 +360,7 @@ static int virCgroupDetectPlacement(virCgroupPtr group,
(STREQ(selfpath, "/") ||
STREQ(path, "") ? "" : "/"),
path) < 0)
goto no_memory;
goto cleanup;
}
tmp = next;
@ -337,14 +368,12 @@ static int virCgroupDetectPlacement(virCgroupPtr group,
}
}
ret = 0;
cleanup:
VIR_FORCE_FCLOSE(mapping);
return 0;
no_memory:
VIR_FORCE_FCLOSE(mapping);
return -ENOMEM;
return ret;
}
static int virCgroupDetect(virCgroupPtr group,
@ -352,19 +381,17 @@ static int virCgroupDetect(virCgroupPtr group,
const char *path,
virCgroupPtr parent)
{
int rc;
size_t i;
size_t j;
VIR_DEBUG("group=%p controllers=%d path=%s parent=%p",
group, controllers, path, parent);
if (parent)
rc = virCgroupCopyMounts(group, parent);
else
rc = virCgroupDetectMounts(group);
if (rc < 0) {
VIR_ERROR(_("Failed to detect mounts for %s"), group->path);
return rc;
if (parent) {
if (virCgroupCopyMounts(group, parent) < 0)
return -1;
} else {
if (virCgroupDetectMounts(group) < 0)
return -1;
}
if (controllers >= 0) {
@ -392,10 +419,11 @@ static int virCgroupDetect(virCgroupPtr group,
if (STREQ_NULLABLE(group->controllers[i].mountPoint,
group->controllers[j].mountPoint)) {
VIR_DEBUG("Controller '%s' is not wanted, but '%s' is co-mounted",
virReportSystemError(EINVAL,
_("Controller '%s' is not wanted, but '%s' is co-mounted"),
virCgroupControllerTypeToString(i),
virCgroupControllerTypeToString(j));
return -EINVAL;
return -1;
}
}
VIR_FREE(group->controllers[i].mountPoint);
@ -416,27 +444,30 @@ static int virCgroupDetect(virCgroupPtr group,
/* Check that at least 1 controller is available */
if (!controllers) {
VIR_DEBUG("No controllers set");
return -ENXIO;
virReportSystemError(ENXIO, "%s",
_("At least one cgroup controller is required"));
return -1;
}
if (parent || path[0] == '/')
rc = virCgroupCopyPlacement(group, path, parent);
else
rc = virCgroupDetectPlacement(group, path);
if (parent || path[0] == '/') {
if (virCgroupCopyPlacement(group, path, parent) < 0)
return -1;
} else {
if (virCgroupDetectPlacement(group, path) < 0)
return -1;
}
if (rc == 0) {
/* Check that for every mounted controller, we found our placement */
for (i = 0; i < VIR_CGROUP_CONTROLLER_LAST; i++) {
if (!group->controllers[i].mountPoint)
continue;
if (!group->controllers[i].placement) {
VIR_ERROR(_("Could not find placement for controller %s at %s"),
virReportError(VIR_ERR_INTERNAL_ERROR,
_("Could not find placement for controller %s at %s"),
virCgroupControllerTypeToString(i),
group->controllers[i].placement);
rc = -ENOENT;
break;
return -1;
}
VIR_DEBUG("Detected mount/mapping %zu:%s at %s in %s", i,
@ -444,11 +475,8 @@ static int virCgroupDetect(virCgroupPtr group,
group->controllers[i].mountPoint,
group->controllers[i].placement);
}
} else {
VIR_ERROR(_("Failed to detect mapping for %s"), group->path);
}
return rc;
return 0;
}
#endif
@ -646,8 +674,9 @@ static int virCgroupCpuSetInherit(virCgroupPtr parent, virCgroupPtr group)
inherit_values[i],
&value);
if (rc != 0) {
VIR_ERROR(_("Failed to get %s %d"), inherit_values[i], rc);
break;
virReportSystemError(-rc,
_("Failed to get '%s'"), inherit_values[i]);
return -1;
}
VIR_DEBUG("Inherit %s = %s", inherit_values[i], value);
@ -659,12 +688,13 @@ static int virCgroupCpuSetInherit(virCgroupPtr parent, virCgroupPtr group)
VIR_FREE(value);
if (rc != 0) {
VIR_ERROR(_("Failed to set %s %d"), inherit_values[i], rc);
break;
virReportSystemError(-rc,
_("Failed to set '%s'"), inherit_values[i]);
return -1;
}
}
return rc;
return 0;
}
static int virCgroupSetMemoryUseHierarchy(virCgroupPtr group)
@ -677,8 +707,9 @@ static int virCgroupSetMemoryUseHierarchy(virCgroupPtr group)
VIR_CGROUP_CONTROLLER_MEMORY,
filename, &value);
if (rc != 0) {
VIR_ERROR(_("Failed to read %s/%s (%d)"), group->path, filename, rc);
return rc;
virReportSystemError(-rc,
_("Failed to get '%s'"), filename);
return -1;
}
/* Setting twice causes error, so if already enabled, skip setting */
@ -691,10 +722,12 @@ static int virCgroupSetMemoryUseHierarchy(virCgroupPtr group)
filename, 1);
if (rc != 0) {
VIR_ERROR(_("Failed to set %s/%s (%d)"), group->path, filename, rc);
virReportSystemError(-rc,
_("Failed to set '%s'"), filename);
return -1;
}
return rc;
return 0;
}
static int virCgroupMakeGroup(virCgroupPtr parent,
@ -703,7 +736,7 @@ static int virCgroupMakeGroup(virCgroupPtr parent,
unsigned int flags)
{
size_t i;
int rc = 0;
int ret = -1;
VIR_DEBUG("Make group %s", group->path);
for (i = 0; i < VIR_CGROUP_CONTROLLER_LAST; i++) {
@ -716,11 +749,11 @@ static int virCgroupMakeGroup(virCgroupPtr parent,
continue;
}
rc = virCgroupPathOfController(group, i, "", &path);
if (rc < 0) {
VIR_DEBUG("Failed to find path of controller %s",
if (virCgroupPathOfController(group, i, "", &path) < 0) {
virReportError(VIR_ERR_INTERNAL_ERROR,
_("Failed to find path of controller %s"),
virCgroupControllerTypeToString(i));
return rc;
return -1;
}
/* As of Feb 2011, clang can't see that the above function
* call did not modify group. */
@ -736,25 +769,23 @@ static int virCgroupMakeGroup(virCgroupPtr parent,
* treat blkio as unmounted if mkdir fails. */
if (i == VIR_CGROUP_CONTROLLER_BLKIO) {
VIR_DEBUG("Ignoring mkdir failure with blkio controller. Kernel probably too old");
rc = 0;
VIR_FREE(group->controllers[i].mountPoint);
VIR_FREE(path);
continue;
} else {
VIR_DEBUG("Failed to create controller %s for group",
virReportSystemError(errno,
_("Failed to create controller %s for group"),
virCgroupControllerTypeToString(i));
rc = -errno;
VIR_FREE(path);
break;
goto cleanup;
}
}
if (group->controllers[VIR_CGROUP_CONTROLLER_CPUSET].mountPoint != NULL &&
(i == VIR_CGROUP_CONTROLLER_CPUSET ||
STREQ(group->controllers[i].mountPoint, group->controllers[VIR_CGROUP_CONTROLLER_CPUSET].mountPoint))) {
rc = virCgroupCpuSetInherit(parent, group);
if (rc != 0) {
if (virCgroupCpuSetInherit(parent, group) < 0) {
VIR_FREE(path);
break;
goto cleanup;
}
}
/*
@ -765,10 +796,9 @@ static int virCgroupMakeGroup(virCgroupPtr parent,
(group->controllers[VIR_CGROUP_CONTROLLER_MEMORY].mountPoint != NULL) &&
(i == VIR_CGROUP_CONTROLLER_MEMORY ||
STREQ(group->controllers[i].mountPoint, group->controllers[VIR_CGROUP_CONTROLLER_MEMORY].mountPoint))) {
rc = virCgroupSetMemoryUseHierarchy(group);
if (rc != 0) {
if (virCgroupSetMemoryUseHierarchy(group) < 0) {
VIR_FREE(path);
break;
goto cleanup;
}
}
}
@ -777,7 +807,10 @@ static int virCgroupMakeGroup(virCgroupPtr parent,
}
VIR_DEBUG("Done making controllers for group");
return rc;
ret = 0;
cleanup:
return ret;
}
@ -795,51 +828,41 @@ static int virCgroupMakeGroup(virCgroupPtr parent,
* @parent is NULL, then the placement of the current
* process is used.
*
* Returns 0 on success, -1 on error
*/
static int virCgroupNew(const char *path,
virCgroupPtr parent,
int controllers,
virCgroupPtr *group)
{
int rc = 0;
char *typpath = NULL;
VIR_DEBUG("parent=%p path=%s controllers=%d",
parent, path, controllers);
*group = NULL;
if (VIR_ALLOC((*group)) != 0) {
rc = -ENOMEM;
goto err;
}
if (VIR_ALLOC((*group)) < 0)
goto error;
if (path[0] == '/' || !parent) {
if (VIR_STRDUP_QUIET((*group)->path, path) < 0) {
rc = -ENOMEM;
goto err;
}
if (VIR_STRDUP((*group)->path, path) < 0)
goto error;
} else {
if (virAsprintf(&(*group)->path, "%s%s%s",
parent->path,
STREQ(parent->path, "") ? "" : "/",
path) < 0) {
rc = -ENOMEM;
goto err;
}
path) < 0)
goto error;
}
rc = virCgroupDetect(*group, controllers, path, parent);
if (rc < 0)
goto err;
if (virCgroupDetect(*group, controllers, path, parent) < 0)
goto error;
return rc;
err:
return 0;
error:
virCgroupFree(group);
*group = NULL;
VIR_FREE(typpath);
return rc;
return -1;
}
static int virCgroupAppRoot(virCgroupPtr *group,
@ -847,22 +870,21 @@ static int virCgroupAppRoot(virCgroupPtr *group,
int controllers)
{
virCgroupPtr selfgrp = NULL;
int rc;
int ret = -1;
rc = virCgroupNewSelf(&selfgrp);
if (virCgroupNewSelf(&selfgrp) < 0)
return -1;
if (rc != 0)
return rc;
rc = virCgroupNew("libvirt", selfgrp, controllers, group);
if (rc != 0)
if (virCgroupNew("libvirt", selfgrp, controllers, group) < 0)
goto cleanup;
rc = virCgroupMakeGroup(selfgrp, *group, create, VIR_CGROUP_NONE);
if (virCgroupMakeGroup(selfgrp, *group, create, VIR_CGROUP_NONE) < 0)
goto cleanup;
ret = 0;
cleanup:
virCgroupFree(&selfgrp);
return rc;
return ret;
}
#endif
@ -918,8 +940,9 @@ int virCgroupRemoveRecursively(char *grppath)
#else
int virCgroupRemoveRecursively(char *grppath ATTRIBUTE_UNUSED)
{
/* Claim no support */
return -ENXIO;
virReportSystemError(ENXIO, "%s",
_("Control groups not supported on this platform"));
return -1;
}
#endif
@ -1119,7 +1142,9 @@ static int virCgroupPartitionNeedsEscaping(const char *path)
* if cgroups are not available on a host */
if (errno == ENOENT)
errno = ENXIO;
return -errno;
virReportSystemError(errno, "%s",
_("Cannot open /proc/cgroups"));
return -1;
}
/*
@ -1152,7 +1177,8 @@ static int virCgroupPartitionNeedsEscaping(const char *path)
}
if (ferror(fp)) {
ret = -EIO;
virReportSystemError(errno, "%s",
_("Error while reading /proc/cgroups"));
goto cleanup;
}
@ -1172,18 +1198,18 @@ static int virCgroupPartitionEscape(char **path)
return rc;
if (VIR_INSERT_ELEMENT(*path, 0, len, escape) < 0)
return -ENOMEM;
return -1;
return 0;
}
static int virCgroupSetPartitionSuffix(const char *path, char **res)
{
char **tokens = virStringSplit(path, "/", 0);
char **tokens;
size_t i;
int ret = -1;
if (!tokens)
if (!(tokens = virStringSplit(path, "/", 0)))
return ret;
for (i = 0; tokens[i] != NULL; i++) {
@ -1202,23 +1228,17 @@ static int virCgroupSetPartitionSuffix(const char *path, char **res)
if (STRNEQ(tokens[i], "") &&
!strchr(tokens[i], '.')) {
if (VIR_REALLOC_N(tokens[i],
strlen(tokens[i]) + strlen(".partition") + 1) < 0) {
ret = -ENOMEM;
strlen(tokens[i]) + strlen(".partition") + 1) < 0)
goto cleanup;
}
strcat(tokens[i], ".partition");
}
ret = virCgroupPartitionEscape(&(tokens[i]));
if (ret < 0) {
if (virCgroupPartitionEscape(&(tokens[i])) < 0)
goto cleanup;
}
}
if (!(*res = virStringJoin((const char **)tokens, "/"))) {
ret = -ENOMEM;
if (!(*res = virStringJoin((const char **)tokens, "/")))
goto cleanup;
}
ret = 0;
@ -1236,64 +1256,59 @@ cleanup:
* Creates a new cgroup to represent the resource
* partition path identified by @name.
*
* Returns 0 on success, -errno on failure
* Returns 0 on success, -1 on failure
*/
int virCgroupNewPartition(const char *path,
bool create,
int controllers,
virCgroupPtr *group)
{
int rc;
int ret = -1;
char *parentPath = NULL;
virCgroupPtr parent = NULL;
char *newpath = NULL;
VIR_DEBUG("path=%s create=%d controllers=%x",
path, create, controllers);
if (path[0] != '/')
return -EINVAL;
/* XXX convert all cgroups APIs to use error report
* APIs instead of returning errno */
rc = virCgroupSetPartitionSuffix(path, &newpath);
if (rc < 0) {
virResetLastError();
goto cleanup;
if (path[0] != '/') {
virReportError(VIR_ERR_INTERNAL_ERROR,
_("Partition path '%s' must start with '/'"),
path);
return -1;
}
rc = virCgroupNew(newpath, NULL, controllers, group);
if (rc != 0)
if (virCgroupSetPartitionSuffix(path, &newpath) < 0)
goto cleanup;
if (virCgroupNew(newpath, NULL, controllers, group) < 0)
goto cleanup;
if (STRNEQ(newpath, "/")) {
char *tmp;
if (VIR_STRDUP_QUIET(parentPath, newpath) < 0) {
rc = -ENOMEM;
if (VIR_STRDUP(parentPath, newpath) < 0)
goto cleanup;
}
tmp = strrchr(parentPath, '/');
tmp++;
*tmp = '\0';
rc = virCgroupNew(parentPath, NULL, controllers, &parent);
if (rc != 0)
if (virCgroupNew(parentPath, NULL, controllers, &parent) < 0)
goto cleanup;
rc = virCgroupMakeGroup(parent, *group, create, VIR_CGROUP_NONE);
if (rc != 0) {
if (virCgroupMakeGroup(parent, *group, create, VIR_CGROUP_NONE) < 0) {
virCgroupRemove(*group);
goto cleanup;
}
}
ret = 0;
cleanup:
if (rc != 0)
if (ret != 0)
virCgroupFree(group);
virCgroupFree(&parent);
VIR_FREE(parentPath);
VIR_FREE(newpath);
return rc;
return ret;
}
#else
int virCgroupNewPartition(const char *path ATTRIBUTE_UNUSED,
@ -1301,8 +1316,9 @@ int virCgroupNewPartition(const char *path ATTRIBUTE_UNUSED,
int controllers ATTRIBUTE_UNUSED,
virCgroupPtr *group ATTRIBUTE_UNUSED)
{
/* Claim no support */
return -ENXIO;
virReportSystemError(ENXIO, "%s",
_("Control groups not supported on this platform"));
return -1;
}
#endif
@ -1312,7 +1328,7 @@ int virCgroupNewPartition(const char *path ATTRIBUTE_UNUSED,
* @name: name of this driver (e.g., xen, qemu, lxc)
* @group: Pointer to returned virCgroupPtr
*
* Returns 0 on success
* Returns 0 on success, or -1 on error
*/
#if defined HAVE_MNTENT_H && defined HAVE_GETMNTENT_R
int virCgroupNewDriver(const char *name,
@ -1320,26 +1336,27 @@ int virCgroupNewDriver(const char *name,
int controllers,
virCgroupPtr *group)
{
int rc;
int ret = -1;
virCgroupPtr rootgrp = NULL;
rc = virCgroupAppRoot(&rootgrp,
create, controllers);
if (rc != 0)
goto out;
if (virCgroupAppRoot(&rootgrp,
create, controllers) < 0)
goto cleanup;
rc = virCgroupNew(name, rootgrp, -1, group);
if (rc == 0) {
rc = virCgroupMakeGroup(rootgrp, *group, create, VIR_CGROUP_NONE);
if (rc != 0) {
if (virCgroupNew(name, rootgrp, -1, group) < 0)
goto cleanup;
if (virCgroupMakeGroup(rootgrp, *group, create, VIR_CGROUP_NONE) < 0) {
virCgroupRemove(*group);
virCgroupFree(group);
goto cleanup;
}
}
out:
virCgroupFree(&rootgrp);
return rc;
ret = 0;
cleanup:
virCgroupFree(&rootgrp);
return ret;
}
#else
int virCgroupNewDriver(const char *name ATTRIBUTE_UNUSED,
@ -1347,8 +1364,9 @@ int virCgroupNewDriver(const char *name ATTRIBUTE_UNUSED,
int controllers ATTRIBUTE_UNUSED,
virCgroupPtr *group ATTRIBUTE_UNUSED)
{
/* Claim no support */
return -ENXIO;
virReportSystemError(ENXIO, "%s",
_("Control groups not supported on this platform"));
return -1;
}
#endif
@ -1360,7 +1378,7 @@ int virCgroupNewDriver(const char *name ATTRIBUTE_UNUSED,
* Obtain a cgroup representing the config of the
* current process
*
* Returns 0 on success
* Returns 0 on success, or -1 on error
*/
#if defined HAVE_MNTENT_H && defined HAVE_GETMNTENT_R
int virCgroupNewSelf(virCgroupPtr *group)
@ -1370,7 +1388,9 @@ int virCgroupNewSelf(virCgroupPtr *group)
#else
int virCgroupNewSelf(virCgroupPtr *group ATTRIBUTE_UNUSED)
{
return -ENXIO;
virReportSystemError(ENXIO, "%s",
_("Control groups not supported on this platform"));
return -1;
}
#endif
@ -1381,7 +1401,7 @@ int virCgroupNewSelf(virCgroupPtr *group ATTRIBUTE_UNUSED)
* @name: name of the domain
* @group: Pointer to returned virCgroupPtr
*
* Returns 0 on success
* Returns 0 on success, or -1 on error
*/
#if defined HAVE_MNTENT_H && defined HAVE_GETMNTENT_R
int virCgroupNewDomainDriver(virCgroupPtr driver,
@ -1389,11 +1409,11 @@ int virCgroupNewDomainDriver(virCgroupPtr driver,
bool create,
virCgroupPtr *group)
{
int rc;
int ret = -1;
rc = virCgroupNew(name, driver, -1, group);
if (virCgroupNew(name, driver, -1, group) < 0)
goto cleanup;
if (rc == 0) {
/*
* Create a cgroup with memory.use_hierarchy enabled to
* surely account memory usage of lxc with ns subsystem
@ -1404,14 +1424,15 @@ int virCgroupNewDomainDriver(virCgroupPtr driver,
* a group for driver, is to avoid overhead to track
* cumulative usage that we don't need.
*/
rc = virCgroupMakeGroup(driver, *group, create, VIR_CGROUP_MEM_HIERACHY);
if (rc != 0) {
if (virCgroupMakeGroup(driver, *group, create, VIR_CGROUP_MEM_HIERACHY) < 0) {
virCgroupRemove(*group);
virCgroupFree(group);
}
goto cleanup;
}
return rc;
ret = 0;
cleanup:
return ret;
}
#else
int virCgroupNewDomainDriver(virCgroupPtr driver ATTRIBUTE_UNUSED,
@ -1419,7 +1440,9 @@ int virCgroupNewDomainDriver(virCgroupPtr driver ATTRIBUTE_UNUSED,
bool create ATTRIBUTE_UNUSED,
virCgroupPtr *group ATTRIBUTE_UNUSED)
{
return -ENXIO;
virReportSystemError(ENXIO, "%s",
_("Control groups not supported on this platform"));
return -1;
}
#endif
@ -1431,7 +1454,7 @@ int virCgroupNewDomainDriver(virCgroupPtr driver ATTRIBUTE_UNUSED,
* @name: name of the domain
* @group: Pointer to returned virCgroupPtr
*
* Returns 0 on success
* Returns 0 on success, or -1 on error
*/
#if defined HAVE_MNTENT_H && defined HAVE_GETMNTENT_R
int virCgroupNewDomainPartition(virCgroupPtr partition,
@ -1440,19 +1463,19 @@ int virCgroupNewDomainPartition(virCgroupPtr partition,
bool create,
virCgroupPtr *group)
{
int rc;
int ret = -1;
char *grpname = NULL;
if (virAsprintf(&grpname, "%s.libvirt-%s",
name, driver) < 0)
return -ENOMEM;
goto cleanup;
if ((rc = virCgroupPartitionEscape(&grpname)) < 0)
return rc;
if (virCgroupPartitionEscape(&grpname) < 0)
goto cleanup;
rc = virCgroupNew(grpname, partition, -1, group);
if (virCgroupNew(grpname, partition, -1, group) < 0)
goto cleanup;
if (rc == 0) {
/*
* Create a cgroup with memory.use_hierarchy enabled to
* surely account memory usage of lxc with ns subsystem
@ -1463,15 +1486,17 @@ int virCgroupNewDomainPartition(virCgroupPtr partition,
* a group for driver, is to avoid overhead to track
* cumulative usage that we don't need.
*/
rc = virCgroupMakeGroup(partition, *group, create, VIR_CGROUP_MEM_HIERACHY);
if (rc != 0) {
if (virCgroupMakeGroup(partition, *group, create, VIR_CGROUP_MEM_HIERACHY) < 0) {
virCgroupRemove(*group);
virCgroupFree(group);
}
goto cleanup;
}
ret = 0;
cleanup:
VIR_FREE(grpname);
return rc;
return ret;
}
#else
int virCgroupNewDomainPartition(virCgroupPtr partition ATTRIBUTE_UNUSED,
@ -1480,7 +1505,9 @@ int virCgroupNewDomainPartition(virCgroupPtr partition ATTRIBUTE_UNUSED,
bool create ATTRIBUTE_UNUSED,
virCgroupPtr *group ATTRIBUTE_UNUSED)
{
return -ENXIO;
virReportSystemError(ENXIO, "%s",
_("Control groups not supported on this platform"));
return -1;
}
#endif
@ -1492,7 +1519,7 @@ int virCgroupNewDomainPartition(virCgroupPtr partition ATTRIBUTE_UNUSED,
* @create: true to create if not already existing
* @group: Pointer to returned virCgroupPtr
*
* Returns 0 on success
* Returns 0 on success, or -1 on error
*/
#if defined HAVE_MNTENT_H && defined HAVE_GETMNTENT_R
int virCgroupNewVcpu(virCgroupPtr domain,
@ -1500,29 +1527,30 @@ int virCgroupNewVcpu(virCgroupPtr domain,
bool create,
virCgroupPtr *group)
{
int rc;
char *name;
int ret = -1;
char *name = NULL;
int controllers;
if (virAsprintf(&name, "vcpu%d", vcpuid) < 0)
return -ENOMEM;
goto cleanup;
controllers = ((1 << VIR_CGROUP_CONTROLLER_CPU) |
(1 << VIR_CGROUP_CONTROLLER_CPUACCT) |
(1 << VIR_CGROUP_CONTROLLER_CPUSET));
rc = virCgroupNew(name, domain, controllers, group);
VIR_FREE(name);
if (virCgroupNew(name, domain, controllers, group) < 0)
goto cleanup;
if (rc == 0) {
rc = virCgroupMakeGroup(domain, *group, create, VIR_CGROUP_NONE);
if (rc != 0) {
if (virCgroupMakeGroup(domain, *group, create, VIR_CGROUP_NONE) < 0) {
virCgroupRemove(*group);
virCgroupFree(group);
}
goto cleanup;
}
return rc;
ret = 0;
cleanup:
VIR_FREE(name);
return ret;
}
#else
int virCgroupNewVcpu(virCgroupPtr domain ATTRIBUTE_UNUSED,
@ -1530,7 +1558,9 @@ int virCgroupNewVcpu(virCgroupPtr domain ATTRIBUTE_UNUSED,
bool create ATTRIBUTE_UNUSED,
virCgroupPtr *group ATTRIBUTE_UNUSED)
{
return -ENXIO;
virReportSystemError(ENXIO, "%s",
_("Control groups not supported on this platform"));
return -1;
}
#endif
@ -1541,41 +1571,57 @@ int virCgroupNewVcpu(virCgroupPtr domain ATTRIBUTE_UNUSED,
* @create: true to create if not already existing
* @group: Pointer to returned virCgroupPtr
*
* Returns: 0 on success or -errno on failure
* Returns: 0 on success or -1 on error
*/
#if defined HAVE_MNTENT_H && defined HAVE_GETMNTENT_R
int virCgroupNewEmulator(virCgroupPtr domain,
bool create,
virCgroupPtr *group)
{
int rc;
int ret = -1;
int controllers;
controllers = ((1 << VIR_CGROUP_CONTROLLER_CPU) |
(1 << VIR_CGROUP_CONTROLLER_CPUACCT) |
(1 << VIR_CGROUP_CONTROLLER_CPUSET));
rc = virCgroupNew("emulator", domain, controllers, group);
if (virCgroupNew("emulator", domain, controllers, group) < 0)
goto cleanup;
if (rc == 0) {
rc = virCgroupMakeGroup(domain, *group, create, VIR_CGROUP_NONE);
if (rc != 0) {
if (virCgroupMakeGroup(domain, *group, create, VIR_CGROUP_NONE) < 0) {
virCgroupRemove(*group);
virCgroupFree(group);
}
goto cleanup;
}
return rc;
ret = 0;
cleanup:
return ret;
}
#else
int virCgroupNewEmulator(virCgroupPtr domain ATTRIBUTE_UNUSED,
bool create ATTRIBUTE_UNUSED,
virCgroupPtr *group ATTRIBUTE_UNUSED)
{
return -ENXIO;
virReportSystemError(ENXIO, "%s",
_("Control groups not supported on this platform"));
return -1;
}
#endif
bool virCgroupNewIgnoreError(void)
{
if (virLastErrorIsSystemErrno(ENXIO) ||
virLastErrorIsSystemErrno(EPERM) ||
virLastErrorIsSystemErrno(EACCES)) {
virResetLastError();
VIR_DEBUG("No cgroups present/configured/accessible, ignoring error");
return true;
}
return false;
}
/**
* virCgroupSetBlkioWeight:
*
@ -2454,8 +2500,11 @@ static int virCgroupKillRecursiveInternal(virCgroupPtr group, int signum, virHas
VIR_DEBUG("Process subdir %s", ent->d_name);
if ((rc = virCgroupNew(ent->d_name, group, -1, &subgroup)) != 0)
if (virCgroupNew(ent->d_name, group, -1, &subgroup) < 0) {
virErrorSetErrnoFromLastError();
rc = -errno;
goto cleanup;
}
if ((rc = virCgroupKillRecursiveInternal(subgroup, signum, pids, true)) < 0)
goto cleanup;

4
src/util/vircgroup.h
View File

@ -46,6 +46,8 @@ enum {
VIR_ENUM_DECL(virCgroupController);
bool virCgroupAvailable(void);
int virCgroupNewPartition(const char *path,
bool create,
int controllers,
@ -84,6 +86,8 @@ int virCgroupNewEmulator(virCgroupPtr domain,
virCgroupPtr *group)
ATTRIBUTE_NONNULL(1) ATTRIBUTE_NONNULL(3);
bool virCgroupNewIgnoreError(void);
int virCgroupPathOfController(virCgroupPtr group,
int controller,
const char *key,

43
tests/vircgrouptest.c
View File

@ -136,6 +136,18 @@ cleanup:
}
# define ENSURE_ERRNO(en) \
do { \
if (!virLastErrorIsSystemErrno(en)) { \
virErrorPtr err = virGetLastError(); \
fprintf(stderr, "Did not get " #en " error code: %d:%d\n", \
err ? err->code : 0, err ? err->int1 : 0); \
goto cleanup; \
} } while (0)
/* Asking for impossible combination since CPU is co-mounted */
static int testCgroupNewForDriver(const void *args ATTRIBUTE_UNUSED)
{
virCgroupPtr cgroup = NULL;
@ -160,26 +172,28 @@ static int testCgroupNewForDriver(const void *args ATTRIBUTE_UNUSED)
[VIR_CGROUP_CONTROLLER_BLKIO] = "/libvirt/lxc",
};
if ((rv = virCgroupNewDriver("lxc", false, -1, &cgroup)) != -ENOENT) {
if ((rv = virCgroupNewDriver("lxc", false, -1, &cgroup)) != -1) {
fprintf(stderr, "Unexpected found LXC cgroup: %d\n", -rv);
goto cleanup;
}
ENSURE_ERRNO(ENOENT);
/* Asking for impossible combination since CPU is co-mounted */
if ((rv = virCgroupNewDriver("lxc", true,
(1 << VIR_CGROUP_CONTROLLER_CPU),
&cgroup)) != -EINVAL) {
&cgroup)) != -1) {
fprintf(stderr, "Should not have created LXC cgroup: %d\n", -rv);
goto cleanup;
}
ENSURE_ERRNO(EINVAL);
/* Asking for impossible combination since devices is not mounted */
if ((rv = virCgroupNewDriver("lxc", true,
(1 << VIR_CGROUP_CONTROLLER_DEVICES),
&cgroup)) != -ENXIO) {
&cgroup)) != -1) {
fprintf(stderr, "Should not have created LXC cgroup: %d\n", -rv);
goto cleanup;
}
ENSURE_ERRNO(ENXIO);
/* Asking for small combination since devices is not mounted */
if ((rv = virCgroupNewDriver("lxc", true,
@ -264,26 +278,29 @@ static int testCgroupNewForPartition(const void *args ATTRIBUTE_UNUSED)
[VIR_CGROUP_CONTROLLER_BLKIO] = "/virtualmachines.partition",
};
if ((rv = virCgroupNewPartition("/virtualmachines", false, -1, &cgroup)) != -ENOENT) {
if ((rv = virCgroupNewPartition("/virtualmachines", false, -1, &cgroup)) != -1) {
fprintf(stderr, "Unexpected found /virtualmachines cgroup: %d\n", -rv);
goto cleanup;
}
ENSURE_ERRNO(ENOENT);
/* Asking for impossible combination since CPU is co-mounted */
if ((rv = virCgroupNewPartition("/virtualmachines", true,
(1 << VIR_CGROUP_CONTROLLER_CPU),
&cgroup)) != -EINVAL) {
&cgroup)) != -1) {
fprintf(stderr, "Should not have created /virtualmachines cgroup: %d\n", -rv);
goto cleanup;
}
ENSURE_ERRNO(EINVAL);
/* Asking for impossible combination since devices is not mounted */
if ((rv = virCgroupNewPartition("/virtualmachines", true,
(1 << VIR_CGROUP_CONTROLLER_DEVICES),
&cgroup)) != -ENXIO) {
&cgroup)) != -1) {
fprintf(stderr, "Should not have created /virtualmachines cgroup: %d\n", -rv);
goto cleanup;
}
ENSURE_ERRNO(ENXIO);
/* Asking for small combination since devices is not mounted */
if ((rv = virCgroupNewPartition("/virtualmachines", true,
@ -324,16 +341,18 @@ static int testCgroupNewForPartitionNested(const void *args ATTRIBUTE_UNUSED)
[VIR_CGROUP_CONTROLLER_BLKIO] = "/deployment.partition/production.partition",
};
if ((rv = virCgroupNewPartition("/deployment/production", false, -1, &cgroup)) != -ENOENT) {
if ((rv = virCgroupNewPartition("/deployment/production", false, -1, &cgroup)) != -1) {
fprintf(stderr, "Unexpected found /deployment/production cgroup: %d\n", -rv);
goto cleanup;
}
ENSURE_ERRNO(ENOENT);
/* Should not work, since we require /deployment to be pre-created */
if ((rv = virCgroupNewPartition("/deployment/production", true, -1, &cgroup)) != -ENOENT) {
if ((rv = virCgroupNewPartition("/deployment/production", true, -1, &cgroup)) != -1) {
fprintf(stderr, "Unexpected created /deployment/production cgroup: %d\n", -rv);
goto cleanup;
}
ENSURE_ERRNO(ENOENT);
if ((rv = virCgroupNewPartition("/deployment", true, -1, &cgroup)) != 0) {
fprintf(stderr, "Failed to create /deployment cgroup: %d\n", -rv);
@ -370,16 +389,18 @@ static int testCgroupNewForPartitionNestedDeep(const void *args ATTRIBUTE_UNUSED
[VIR_CGROUP_CONTROLLER_BLKIO] = "/user/berrange.user/production.partition",
};
if ((rv = virCgroupNewPartition("/user/berrange.user/production", false, -1, &cgroup)) != -ENOENT) {
if ((rv = virCgroupNewPartition("/user/berrange.user/production", false, -1, &cgroup)) != -1) {
fprintf(stderr, "Unexpected found /user/berrange.user/production cgroup: %d\n", -rv);
goto cleanup;
}
ENSURE_ERRNO(ENOENT);
/* Should not work, since we require /user/berrange.user to be pre-created */
if ((rv = virCgroupNewPartition("/user/berrange.user/production", true, -1, &cgroup)) != -ENOENT) {
if ((rv = virCgroupNewPartition("/user/berrange.user/production", true, -1, &cgroup)) != -1) {
fprintf(stderr, "Unexpected created /user/berrange.user/production cgroup: %d\n", -rv);
goto cleanup;
}
ENSURE_ERRNO(ENOENT);
if ((rv = virCgroupNewPartition("/user", true, -1, &cgroup)) != 0) {
fprintf(stderr, "Failed to create /user/berrange.user cgroup: %d\n", -rv);