diff --git a/kernel/kalloc.c b/kernel/kalloc.c
index 0699e7eed4..332e321cce 100644
--- a/kernel/kalloc.c
+++ b/kernel/kalloc.c
@@ -80,3 +80,14 @@ kalloc(void)
     memset((char*)r, 5, PGSIZE); // fill with junk
   return (void*)r;
 }
+extern struct run *freelist;  // This is the free memory list
+
+int kfreepages(void) {
+    int count = 0;
+    struct run *r;
+    acquire(&kmem.lock);  // Lock memory during the free page count
+    for (r = kmem.freelist; r; r = r->next)
+        count++;
+    release(&kmem.lock);  // Unlock memory
+    return count;
+}