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pkg/cgroup: add enabled controler check for v2
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parent
144d408a6d
commit
3fb1ccd890
@ -130,7 +130,8 @@ func newV1(prefix string, ct *Controllers) (cg Cgroup, err error) {
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func newV2(prefix string, ct *Controllers) (cg Cgroup, err error) {
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v2 := &V2{
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path: path.Join(basePath, prefix),
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path: path.Join(basePath, prefix),
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control: ct,
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}
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if _, err := os.Stat(v2.path); err == nil {
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v2.existing = true
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@ -221,6 +222,7 @@ func openExistingV2(prefix string, ct *Controllers) (cg Cgroup, err error) {
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}
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return &V2{
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path: path.Join(basePath, prefix),
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control: ect,
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existing: true,
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}, nil
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}
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@ -13,6 +13,7 @@ import (
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// V2 provides cgroup interface for v2
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type V2 struct {
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path string
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control *Controllers
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subtreeOnce sync.Once
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subtreeErr error
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existing bool
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@ -41,7 +42,8 @@ func (c *V2) New(name string) (Cgroup, error) {
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return nil, err
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}
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v2 := &V2{
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path: path.Join(c.path, name),
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path: path.Join(c.path, name),
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control: c.control,
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}
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if err := os.Mkdir(v2.path, dirPerm); err != nil {
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if !os.IsExist(err) {
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@ -55,7 +57,8 @@ func (c *V2) New(name string) (Cgroup, error) {
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// Nest creates a sub-cgroup, moves current process into that cgroup
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func (c *V2) Nest(name string) (Cgroup, error) {
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v2 := &V2{
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path: path.Join(c.path, name),
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path: path.Join(c.path, name),
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control: c.control,
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}
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if err := os.Mkdir(v2.path, dirPerm); err != nil {
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if !os.IsExist(err) {
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@ -138,32 +141,50 @@ func (c *V2) CPUUsage() (uint64, error) {
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// MemoryUsage reads memory.current
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func (c *V2) MemoryUsage() (uint64, error) {
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if !c.control.Memory {
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return 0, ErrNotInitialized
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}
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return c.ReadUint("memory.current")
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}
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// MemoryMaxUsage reads memory.peak
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func (c *V2) MemoryMaxUsage() (uint64, error) {
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if !c.control.Memory {
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return 0, ErrNotInitialized
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}
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return c.ReadUint("memory.peak")
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}
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// SetCPUBandwidth set cpu.max quota period
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func (c *V2) SetCPUBandwidth(quota, period uint64) error {
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if !c.control.CPU {
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return ErrNotInitialized
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}
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content := strconv.FormatUint(quota, 10) + " " + strconv.FormatUint(period, 10)
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return c.WriteFile("cpu.max", []byte(content))
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}
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// SetCPUSet sets cpuset.cpus
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func (c *V2) SetCPUSet(content []byte) error {
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if !c.control.CPUSet {
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return ErrNotInitialized
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}
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return c.WriteFile("cpuset.cpus", content)
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}
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// SetMemoryLimit memory.max
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func (c *V2) SetMemoryLimit(l uint64) error {
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if !c.control.Memory {
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return ErrNotInitialized
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}
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return c.WriteUint("memory.max", l)
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}
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// SetProcLimit pids.max
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func (c *V2) SetProcLimit(l uint64) error {
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if !c.control.Pids {
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return ErrNotInitialized
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}
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return c.WriteUint("pids.max", l)
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}
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