INNER CODE UNIT · Go

isNvidiaModuleLoaded

NVIDIA/gpu-operator · cmd/nvidia-validator/main.go:924

func isNvidiaModuleLoaded() bool {
	// Check if the nvidia module is loaded by checking if nvidiaModuleRefcntPath exists
	if _, err := os.Stat(nvidiaModuleRefcntPath); err == nil {
		refcntData, err := os.ReadFile(nvidiaModuleRefcntPath)
		if err == nil {
			refcnt := strings.TrimSpace(string(refcntData))
			log.Infof("NVIDIA kernel module already loaded in kernel memory (refcnt=%s)", refcnt)
			return true
		}
	}
	return false
}

// createDevCharSymlinks creates symlinks in /host-dev-char that point to all possible NVIDIA devices nodes.
func createDevCharSymlinks(driverInfo driverInfo, disableDevCharSymlinkCreation bool) error {
	if disableDevCharSymlinkCreation {
		log.WithField("disableDevCharSymlinkCreation", true).
			Info("skipping the creation of symlinks under /dev/char that correspond to NVIDIA character devices")

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