Filter out EOF errors in ReadFile.

file_system.go

@@ -694,7 +694,8 @@ type ReadFileRequest struct {
 }
 
 type ReadFileResponse struct {
-	// The data read.
+	// The data read. If this is less than the requested size, it indicates EOF.
+	// An error should not be returned in this case.
 	Data []byte
 }
 

samples/memfs/fs.go

@@ -16,6 +16,7 @@ package memfs
 
 import (
 	"fmt"
+	"io"
 	"os"
 	"time"
 
@@ -497,6 +498,11 @@ func (fs *memFS) ReadFile(
 	n, err := inode.ReadAt(resp.Data, req.Offset)
 	resp.Data = resp.Data[:n]
 
+	// Don't return EOF errors; we just indicate EOF to fuse using a short read.
+	if err == io.EOF {
+		err = nil
+	}
+
 	return
 }