*portworxVolume
}

var _ volume.Unmounter = &portworxVolumeUnmounter{}

// Unmounts the bind mount, and detaches the disk only if the PD
// resource was the last reference to that disk on the kubelet.
func (c *portworxVolumeUnmounter) TearDown() error {
	return c.TearDownAt(c.GetPath())
}

// Unmounts the bind mount, and detaches the disk only if the PD
// resource was the last reference to that disk on the kubelet.

//sys	Sync() (err error)
//sys	Truncate(path string, length int64) (err error)
//sys	Umask(newmask int) (oldmask int)
//sys	Undelete(path string) (err error)
//sys	Unlink(path string) (err error)
//sys	Unmount(path string, flags int) (err error)
//sys	write(fd int, p []byte) (n int, err error)
//sys	writev(fd int, iovecs []Iovec) (cnt uintptr, err error)

//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)

//sys	Sync() (err error)
//sys	Truncate(path string, length int64) (err error)
//sys	Umask(newmask int) (oldmask int)
//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)

- Seal the KMS such that it cannot be accessed by MinIO server anymore. That will lock **all** SSE-S3 encrypted objects protected by master keys stored on the KMS. All these objects can not be decrypted as long as the KMS is sealed.
- Seal/Unmount one/some master keys. That will lock all SSE-S3 encrypted objects protected by these master keys. All these objects can not be decrypted as long as the key(s) are sealed.

//sys	Sync() (err error)
//sys	Truncate(path string, length int64) (err error)
//sys	Umask(newmask int) (oldmask int)
//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)

// Breaking this up helps with testing
func detectMountpointInternal(m mount.Interface, path string) (string, error) {
	for path != "" && path != "/" {
		// per k8s.io/mount-utils/mount_linux this detects all but
		// a bind mount from one part of a mount to another.
		// For our purposes that's fine; we simply want the "true"
		// mount point
		//
		// IsNotMountPoint proved much more troublesome; it actually

	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); }

		if len(arg.Name) == 0 {
			allErrs = append(allErrs, field.Invalid(fldPath, fmt.Sprintf("index %d", idx), "argument has no name"))
		}
	}

	return allErrs
}

// ValidateUnmountFlags validates a set of unmount flags and collects all encountered errors
func ValidateUnmountFlags(flags []string, fldPath *field.Path) field.ErrorList {
	allErrs := field.ErrorList{}

	for idx, flag := range flags {
		switch flag {

	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); }