Implement a proper block layer with partition support.

[pintos-anon] / src / lib / kernel / list.h

diff --git a/src/lib/kernel/list.h b/src/lib/kernel/list.h
index 2388f9acdbf8e553d79ff6a27b93703020a3739e..82efbb5b1c19053a4b7c68723f358bb413ece4c2 100644 (file)
--- a/src/lib/kernel/list.h
+++ b/src/lib/kernel/list.h
@@ -109,6 +109,19 @@ struct list
         ((STRUCT *) ((uint8_t *) &(LIST_ELEM)->next     \
                      - offsetof (STRUCT, MEMBER.next)))
 
+/* List initialization.
+
+   A list may be initialized by calling list_init():
+
+       struct list my_list;
+       list_init (&my_list);
+
+   or with an initializer using LIST_INITIALIZER:
+
+       struct list my_list = LIST_INITIALIZER (my_list); */
+#define LIST_INITIALIZER(NAME) { { NULL, &(NAME).tail }, \
+                                 { &(NAME).head, NULL } }
+
 void list_init (struct list *);
 
 /* List traversal. */