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skip set cpu.weight when cpu.idle is enabled in cgroups v2 #4143

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skip set cpu.weight when cpu.idle is enabled in cgroups v2 #4143

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3 changes: 2 additions & 1 deletion libcontainer/cgroups/fs2/cpu.go
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Original file line number Diff line number Diff line change
Expand Up @@ -29,7 +29,8 @@ func setCpu(dirPath string, r *configs.Resources) error {
}

// NOTE: .CpuShares is not used here. Conversion is the caller's responsibility.
if r.CpuWeight != 0 {
// can not set cpu.weight if cpu.idle is enabled
if r.CpuWeight != 0 && (r.CPUIdle == nil || *r.CPUIdle == 0) {
if err := cgroups.WriteFile(dirPath, "cpu.weight", strconv.FormatUint(r.CpuWeight, 10)); err != nil {
return err
}
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