Added a public domain malloc temporarily.

More changes to fs0, still improvising.

tasks/fs0/include/fs.h

@@ -59,7 +59,7 @@ struct dentry {
 	struct dentry *parent;		/* Parent dentry */
 	struct list_head child;		/* List of dentries with same parent */
 	struct list_head children;	/* List of children dentries */
-	struct list_head dref_list;	/* For vnode's dirent reference list */
+	struct list_head vref;		/* For vnode's dirent reference list */
 	struct vnode *vnode;		/* The vnode associated with dirent */
 	struct dentry_ops ops;
 };

tasks/fs0/include/malloc.h

@@ -0,0 +1,7 @@
+#ifndef __PRIVATE_MALLOC_H__
+#define __PRIVATE_MALLOC_H__
+
+void *kmalloc(size_t size);
+void kfree(void *blk);
+
+#endif /*__PRIVATE_MALLOC_H__ */