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Diffstat (limited to 'pkg/cgroups/cpuset.go')
-rw-r--r--pkg/cgroups/cpuset.go85
1 files changed, 0 insertions, 85 deletions
diff --git a/pkg/cgroups/cpuset.go b/pkg/cgroups/cpuset.go
deleted file mode 100644
index 46d0484f2..000000000
--- a/pkg/cgroups/cpuset.go
+++ /dev/null
@@ -1,85 +0,0 @@
-package cgroups
-
-import (
- "fmt"
- "io/ioutil"
- "path/filepath"
- "strings"
-
- spec "github.com/opencontainers/runtime-spec/specs-go"
- "github.com/pkg/errors"
-)
-
-type cpusetHandler struct {
-}
-
-func cpusetCopyFileFromParent(dir, file string, cgroupv2 bool) ([]byte, error) {
- if dir == cgroupRoot {
- return nil, fmt.Errorf("could not find parent to initialize cpuset %s", file)
- }
- path := filepath.Join(dir, file)
- parentPath := path
- if cgroupv2 {
- parentPath = fmt.Sprintf("%s.effective", parentPath)
- }
- data, err := ioutil.ReadFile(parentPath)
- if err != nil {
- return nil, errors.Wrapf(err, "open %s", path)
- }
- if len(strings.Trim(string(data), "\n")) != 0 {
- return data, nil
- }
- data, err = cpusetCopyFileFromParent(filepath.Dir(dir), file, cgroupv2)
- if err != nil {
- return nil, err
- }
- if err := ioutil.WriteFile(path, data, 0644); err != nil {
- return nil, errors.Wrapf(err, "write %s", path)
- }
- return data, nil
-}
-
-func cpusetCopyFromParent(path string, cgroupv2 bool) error {
- for _, file := range []string{"cpuset.cpus", "cpuset.mems"} {
- if _, err := cpusetCopyFileFromParent(path, file, cgroupv2); err != nil {
- return err
- }
- }
- return nil
-}
-
-func getCpusetHandler() *cpusetHandler {
- return &cpusetHandler{}
-}
-
-// Apply set the specified constraints
-func (c *cpusetHandler) Apply(ctr *CgroupControl, res *spec.LinuxResources) error {
- if res.CPU == nil {
- return nil
- }
- return fmt.Errorf("cpuset apply not implemented yet")
-}
-
-// Create the cgroup
-func (c *cpusetHandler) Create(ctr *CgroupControl) (bool, error) {
- if ctr.cgroup2 {
- path := filepath.Join(cgroupRoot, ctr.path)
- return true, cpusetCopyFromParent(path, true)
- }
-
- created, err := ctr.createCgroupDirectory(CPUset)
- if !created || err != nil {
- return created, err
- }
- return true, cpusetCopyFromParent(ctr.getCgroupv1Path(CPUset), false)
-}
-
-// Destroy the cgroup
-func (c *cpusetHandler) Destroy(ctr *CgroupControl) error {
- return rmDirRecursively(ctr.getCgroupv1Path(CPUset))
-}
-
-// Stat fills a metrics structure with usage stats for the controller
-func (c *cpusetHandler) Stat(ctr *CgroupControl, m *Metrics) error {
- return nil
-}