Import all this stuff into a single repo called Serenity.

VirtualFileSystem/InodeIdentifier.h

@@ -0,0 +1,40 @@
+#pragma once
+
+#include <AK/ByteBuffer.h>
+#include <AK/Types.h>
+
+class FileSystem;
+struct InodeMetadata;
+
+class InodeIdentifier {
+public:
+    InodeIdentifier() { }
+    InodeIdentifier(dword fileSystemID, dword inode)
+        : m_fileSystemID(fileSystemID)
+        , m_index(inode)
+    {
+    }
+
+    bool isValid() const { return m_fileSystemID != 0 && m_index != 0; }
+
+    dword fileSystemID() const { return m_fileSystemID; }
+    dword index() const { return m_index; }
+
+    FileSystem* fileSystem();
+    const FileSystem* fileSystem() const;
+
+    bool operator==(const InodeIdentifier& other) const
+    {
+        return m_fileSystemID == other.m_fileSystemID && m_index == other.m_index;
+    }
+
+    InodeMetadata metadata() const;
+    bool isRootInode() const;
+
+    ByteBuffer readEntireFile() const;
+
+private:
+    dword m_fileSystemID { 0 };
+    dword m_index { 0 };
+};
+