diff --git a/samples/memfs/inode.go b/samples/memfs/inode.go
index 998a829..8ec18d4 100644
--- a/samples/memfs/inode.go
+++ b/samples/memfs/inode.go
@@ -176,7 +176,7 @@ func (in *inode) isFile() bool {
 // Return the number of children of the directory.
 //
 // REQUIRES: in.isDir()
-// SHARED_LOCKS_REQUIRED(in.mu)
+// LOCKS_REQUIRED(in.mu)
 func (in *inode) Len() (n int) {
 	for _, e := range in.entries {
 		if e.Type != fuseutil.DT_Unknown {
@@ -190,7 +190,7 @@ func (in *inode) Len() (n int) {
 // Find an entry for the given child name and return its inode ID.
 //
 // REQUIRES: in.isDir()
-// SHARED_LOCKS_REQUIRED(in.mu)
+// LOCKS_REQUIRED(in.mu)
 func (in *inode) LookUpChild(name string) (id fuseops.InodeID, ok bool) {
 	index, ok := in.findChild(name)
 	if ok {
@@ -204,7 +204,7 @@ func (in *inode) LookUpChild(name string) (id fuseops.InodeID, ok bool) {
 //
 // REQUIRES: in.isDir()
 // REQUIRES: dt != fuseutil.DT_Unknown
-// EXCLUSIVE_LOCKS_REQUIRED(in.mu)
+// LOCKS_REQUIRED(in.mu)
 func (in *inode) AddChild(
 	id fuseops.InodeID,
 	name string,
@@ -244,7 +244,7 @@ func (in *inode) AddChild(
 //
 // REQUIRES: in.isDir()
 // REQUIRES: An entry for the given name exists.
-// EXCLUSIVE_LOCKS_REQUIRED(in.mu)
+// LOCKS_REQUIRED(in.mu)
 func (in *inode) RemoveChild(name string) {
 	// Update the modification time.
 	in.attributes.Mtime = in.clock.Now()
@@ -265,7 +265,7 @@ func (in *inode) RemoveChild(name string) {
 // Serve a ReadDir request.
 //
 // REQUIRES: in.isDir()
-// SHARED_LOCKS_REQUIRED(in.mu)
+// LOCKS_REQUIRED(in.mu)
 func (in *inode) ReadDir(offset int, size int) (data []byte, err error) {
 	if !in.dir {
 		panic("ReadDir called on non-directory.")
@@ -294,7 +294,7 @@ func (in *inode) ReadDir(offset int, size int) (data []byte, err error) {
 // Read from the file's contents. See documentation for ioutil.ReaderAt.
 //
 // REQUIRES: in.isFile()
-// SHARED_LOCKS_REQUIRED(in.mu)
+// LOCKS_REQUIRED(in.mu)
 func (in *inode) ReadAt(p []byte, off int64) (n int, err error) {
 	if in.dir {
 		panic("ReadAt called on directory.")
@@ -318,7 +318,7 @@ func (in *inode) ReadAt(p []byte, off int64) (n int, err error) {
 // Write to the file's contents. See documentation for ioutil.WriterAt.
 //
 // REQUIRES: in.isFile()
-// EXCLUSIVE_LOCKS_REQUIRED(in.mu)
+// LOCKS_REQUIRED(in.mu)
 func (in *inode) WriteAt(p []byte, off int64) (n int, err error) {
 	if in.dir {
 		panic("WriteAt called on directory.")
@@ -348,7 +348,7 @@ func (in *inode) WriteAt(p []byte, off int64) (n int, err error) {
 
 // Update attributes from non-nil parameters.
 //
-// EXCLUSIVE_LOCKS_REQUIRED(in.mu)
+// LOCKS_REQUIRED(in.mu)
 func (in *inode) SetAttributes(
 	size *uint64,
 	mode *os.FileMode,