--- 2.4.0-test5/fs/buffer.c	Fri Jul 28 07:24:13 2000
+++ 2.4.0-test5-classzone/fs/buffer.c	Thu Aug 17 19:46:40 2000
@@ -1685,8 +1705,10 @@
 	loff_t pos = ((loff_t)page->index << PAGE_CACHE_SHIFT) + to;
 	__block_commit_write(inode,page,from,to);
 	kunmap(page);
-	if (pos > inode->i_size)
+	if (pos > inode->i_size) {
 		inode->i_size = pos;
+		mark_inode_dirty(inode);
+	}
 	return 0;
 }