diff --git a/src/system/kernel/cache/vnode_store.cpp b/src/system/kernel/cache/vnode_store.cpp
index 90c63ec210..56906c42f8 100644
--- a/src/system/kernel/cache/vnode_store.cpp
+++ b/src/system/kernel/cache/vnode_store.cpp
@@ -34,6 +34,14 @@ VMVnodeCache::Init(struct vnode* vnode, uint32 allocationFlags)
 }
 
 
+status_t
+VMVnodeCache::Commit(off_t size, int priority)
+{
+	// We don't need to commit memory.
+	return B_OK;
+}
+
+
 bool
 VMVnodeCache::HasPage(off_t offset)
 {
diff --git a/src/system/kernel/cache/vnode_store.h b/src/system/kernel/cache/vnode_store.h
index 4c1b5c73eb..c7386c06bc 100644
--- a/src/system/kernel/cache/vnode_store.h
+++ b/src/system/kernel/cache/vnode_store.h
@@ -18,6 +18,7 @@ public:
 			status_t			Init(struct vnode* vnode,
 									uint32 allocationFlags);
 
+	virtual	status_t			Commit(off_t size, int priority);
 	virtual	bool				HasPage(off_t offset);
 
 	virtual	status_t			Read(off_t offset, const generic_io_vec* vecs,