// some may be local and some remote.
	getEndpoints func() []Endpoint

	// getEndpoints returns list of endpoint strings belonging this set.
	// some may be local and some remote.
	getEndpointStrings func() []string

	// Locker mutex map.
	nsMutex *nsLockMap
}

// NewNSLock - initialize a new namespace RWLocker instance.
func (er erasureObjects) NewNSLock(bucket string, objects ...string) RWLocker {

				defaultParityCount: defaultParityCount,
				getDisks:           s.GetDisks(i),
				getLockers:         s.GetLockers(i),
				getEndpoints:       s.GetEndpoints(i),
				getEndpointStrings: s.GetEndpointStrings(i),
				nsMutex:            mutex,
			}
		}(i)
	}

	wg.Wait()

	// start cleanup stale uploads go-routine.
	go s.cleanupStaleUploads(ctx)