SYS_OBREAK                   = 17  // { int obreak(char *nsize); } break \
	SYS_GETPID                   = 20  // { pid_t getpid(void); }
	SYS_MOUNT                    = 21  // { int mount(char *type, char *path, \
	SYS_UNMOUNT                  = 22  // { int unmount(char *path, int flags); }
	SYS_SETUID                   = 23  // { int setuid(uid_t uid); }
	SYS_GETUID                   = 24  // { uid_t getuid(void); }

}

func isCorruptedDir(dir string) bool {
	_, pathErr := mount.PathExists(dir)
	return pathErr != nil && mount.IsCorruptedMnt(pathErr)
}

// removeMountDir cleans the mount dir when dir is not mounted and removed the volume data file in dir
func removeMountDir(plug *csiPlugin, mountPath string) error {
	klog.V(4).Info(log("removing mount path [%s]", mountPath))

	mnt, err := isDirMounted(plug, mountPath)

	if err5 != nil {
		t.Errorf("NestedPendingOperations failed. Expected: <no error> Actual: <%v>", err5)
	}
	time.Sleep(delay)

	// Assert
	// Operation5 will override operation2, since we successfully finished unmount operation on pod2, it should be removed from operations array
	grm.(*nestedPendingOperations).lock.Lock()

	SYS_GETFSSTAT     = 18  // { int getfsstat(struct statfs *buf, long bufsize, \
	SYS_GETPID        = 20  // { pid_t getpid(void); }
	SYS_MOUNT         = 21  // { int mount(char *type, char *path, int flags, \
	SYS_UNMOUNT       = 22  // { int unmount(char *path, int flags); }
	SYS_SETUID        = 23  // { int setuid(uid_t uid); }
	SYS_GETUID        = 24  // { uid_t getuid(void); }
	SYS_GETEUID       = 25  // { uid_t geteuid(void); }

//sys	Utime(path string, buf *Utimbuf) (err error)

//sys	Getsystemcfg(label int) (n uint64)

//sys	umount(target string) (err error)

func Unmount(target string, flags int) (err error) {
	if flags != 0 {
		// AIX doesn't have any flags for umount.
		return ENOSYS
	}
	return umount(target)

//sys	Umask(newmask int) (oldmask int)
//sys	Undelete(path string) (err error)
//sys	Unlink(path string) (err error)
//sys	Unlinkat(dirfd int, path string, flags int) (err error)
//sys	Unmount(path string, flags int) (err error)
//sys	write(fd int, p []byte) (n int, err error)
//sys	mmap(addr uintptr, length uintptr, prot int, flag int, fd int, pos int64) (ret uintptr, err error)

	}{
		"empty": {
			[]string{},
			[]string{},
		},
		"not-pod-mount": {
			[]string{"/mnt/outside"},
			[]string{},
		},
		"pod-mount": {
			[]string{filepath.Join(podsDir, "pod-mount")},
			[]string{filepath.Join(podsDir, "pod-mount")},
		},
		"not-directory-prefix": {
			[]string{podsDir + "pod-mount"},
			[]string{},
		},
		"mix": {
			[]string{"/mnt/outside",

	// save the data file prior to unmount
	targetDir := getTargetPath(testPodUID, pv.ObjectMeta.Name, plug.host)
	dir := filepath.Join(targetDir, "mount")
	if err := os.MkdirAll(dir, 0755); err != nil && !os.IsNotExist(err) {
		t.Errorf("failed to create dir [%s]: %v", dir, err)
	}

	// do a fake local mount
	diskMounter := util.NewSafeFormatAndMountFromHost(plug.GetPluginName(), plug.host)

	SYS_BREAK                = 17  // { int|sys||obreak(char *nsize); }
	SYS_GETPID               = 20  // { pid_t|sys||getpid_with_ppid(void); }
	SYS_UNMOUNT              = 22  // { int|sys||unmount(const char *path, int flags); }
	SYS_SETUID               = 23  // { int|sys||setuid(uid_t uid); }
	SYS_GETUID               = 24  // { uid_t|sys||getuid_with_euid(void); }

	SYS_BREAK                = 17  // { int|sys||obreak(char *nsize); }
	SYS_GETPID               = 20  // { pid_t|sys||getpid_with_ppid(void); }
	SYS_UNMOUNT              = 22  // { int|sys||unmount(const char *path, int flags); }
	SYS_SETUID               = 23  // { int|sys||setuid(uid_t uid); }
	SYS_GETUID               = 24  // { uid_t|sys||getuid_with_euid(void); }