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Don't lock readinessStates on concurrent reads #4724

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Feb 23, 2015
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7 changes: 4 additions & 3 deletions pkg/kubelet/probe.go
Original file line number Diff line number Diff line change
Expand Up @@ -162,7 +162,8 @@ func newReadinessStates() *readinessStates {
}

type readinessStates struct {
sync.Mutex
// guards states
sync.RWMutex
states map[string]bool
}

Expand All @@ -174,8 +175,8 @@ func (r *readinessStates) IsReady(c api.ContainerStatus) bool {
}

func (r *readinessStates) get(key string) bool {
r.Lock()
defer r.Unlock()
r.RLock()
defer r.RUnlock()
state, found := r.states[key]
return state && found
}
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