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fix: eventfd leak for v2 runtime with v1 cgroups

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There's no OOM monitoring for the v2 cgroups yet, so it seems unlikely
that there was a leak in that case.

Signed-off-by: Seth Pellegrino <spellegrino@newrelic.com>
This commit is contained in:
Seth Pellegrino 2020-01-13 10:49:11 -08:00
parent 9456040acb
commit 66508589d3
1 changed files with 19 additions and 18 deletions
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37
runtime/v2/runc/v2/service.go
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@ -330,27 +330,28 @@ func (s *service) Start(ctx context.Context, r *taskAPI.StartRequest) (*taskAPI.
s.eventSendMu.Unlock()
return nil, errdefs.ToGRPC(err)
}
switch cg := container.Cgroup().(type) {
case cgroups.Cgroup:
if err := s.ep.Add(container.ID, cg); err != nil {
logrus.WithError(err).Error("add cg to OOM monitor")
}
case *cgroupsv2.Manager:
allControllers, err := cg.RootControllers()
if err != nil {
logrus.WithError(err).Error("failed to get root controllers")
} else {
if err := cg.ToggleControllers(allControllers, cgroupsv2.Enable); err != nil {
logrus.WithError(err).Errorf("failed to enable controllers (%v)", allControllers)
}
}
// OOM monitor is not implemented yet
logrus.WithError(errdefs.ErrNotImplemented).Warn("add cg to OOM monitor")
}
switch r.ExecID {
case "":
switch cg := container.Cgroup().(type) {
case cgroups.Cgroup:
if err := s.ep.Add(container.ID, cg); err != nil {
logrus.WithError(err).Error("add cg to OOM monitor")
}
case *cgroupsv2.Manager:
allControllers, err := cg.RootControllers()
if err != nil {
logrus.WithError(err).Error("failed to get root controllers")
} else {
if err := cg.ToggleControllers(allControllers, cgroupsv2.Enable); err != nil {
logrus.WithError(err).Errorf("failed to enable controllers (%v)", allControllers)
}
}
// OOM monitor is not implemented yet
logrus.WithError(errdefs.ErrNotImplemented).Warn("add cg to OOM monitor")
}
s.send(&eventstypes.TaskStart{
ContainerID: container.ID,
Pid: uint32(p.Pid()),