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vircgroup: introduce virCgroupSetBackends helper

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Signed-off-by: Pavel Hrdina <phrdina@redhat.com>
Reviewed-by: Michal Privoznik <mprivozn@redhat.com>
This commit is contained in:
Pavel Hrdina 2020-10-14 11:08:21 +02:00
parent c88b3712ca
commit a4353381f1
1 changed files with 28 additions and 16 deletions
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44
src/util/vircgroup.c
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@ -212,6 +212,33 @@ virCgroupPartitionEscape(char **path)
}
static int
virCgroupSetBackends(virCgroupPtr group)
{
virCgroupBackendPtr *backends = virCgroupBackendGetAll();
bool backendAvailable = false;
size_t i;
if (!backends)
return -1;
for (i = 0; i < VIR_CGROUP_BACKEND_TYPE_LAST; i++) {
if (backends[i] && backends[i]->available()) {
group->backends[i] = backends[i];
backendAvailable = true;
}
}
if (!backendAvailable) {
virReportError(VIR_ERR_INTERNAL_ERROR, "%s",
_("no cgroup backend available"));
return -1;
}
return 0;
}
/*
* Process /proc/mounts figuring out what controllers are
* mounted and where
@ -339,29 +366,14 @@ virCgroupDetect(virCgroupPtr group,
virCgroupPtr parent)
{
size_t i;
bool backendAvailable = false;
int controllersAvailable = 0;
virCgroupBackendPtr *backends = virCgroupBackendGetAll();
VIR_DEBUG("group=%p controllers=%d path=%s parent=%p",
group, controllers, path, parent);
if (!backends)
if (virCgroupSetBackends(group) < 0)
return -1;
for (i = 0; i < VIR_CGROUP_BACKEND_TYPE_LAST; i++) {
if (backends[i] && backends[i]->available()) {
group->backends[i] = backends[i];
backendAvailable = true;
}
}
if (!backendAvailable) {
virReportError(VIR_ERR_INTERNAL_ERROR, "%s",
_("no cgroup backend available"));
return -1;
}
if (parent) {
for (i = 0; i < VIR_CGROUP_BACKEND_TYPE_LAST; i++) {
if (group->backends[i] &&