---

yaml --- r: 29075 b: refs/heads/master c: 54e7377 h: refs/heads/master i: 29073: 121a7d6 29071: ce604ec v: v3
git-mirror · Jun 23, 2006 · 4b34a74 · 4b34a74
1 parent 7c7263a
commit 4b34a74
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Showing 2 changed files with 24 additions and 1 deletion.
diff --git a/[refs] b/[refs]
@@ -1,2 +1,2 @@
 ---
-refs/heads/master: cb259f07b1daacafac3b12ecd7f180faf7e506b0
+refs/heads/master: 54e73770357142e297c916c7865f5fca7499f69c
diff --git a/trunk/include/linux/list.h b/trunk/include/linux/list.h
@@ -197,12 +197,35 @@ static inline void list_del_rcu(struct list_head *entry)
 	entry->prev = LIST_POISON2;
 }
 
+/**
+ * list_replace - replace old entry by new one
+ * @old : the element to be replaced
+ * @new : the new element to insert
+ * Note: if 'old' was empty, it will be overwritten.
+ */
+static inline void list_replace(struct list_head *old,
+				struct list_head *new)
+{
+	new->next = old->next;
+	new->next->prev = new;
+	new->prev = old->prev;
+	new->prev->next = new;
+}
+
+static inline void list_replace_init(struct list_head *old,
+					struct list_head *new)
+{
+	list_replace(old, new);
+	INIT_LIST_HEAD(old);
+}
+
 /*
  * list_replace_rcu - replace old entry by new one
  * @old : the element to be replaced
  * @new : the new element to insert
  *
  * The old entry will be replaced with the new entry atomically.
+ * Note: 'old' should not be empty.
  */
 static inline void list_replace_rcu(struct list_head *old,
 				struct list_head *new)