[PATCH] list_is_last utility

Add another list utility function to check for last element in a list.
Signed-off-by: NShailabh Nagar <nagar@watson.ibm.com>
Signed-off-by: NAndrew Morton <akpm@osdl.org>
Signed-off-by: NLinus Torvalds <torvalds@osdl.org>

include/linux/list.h

@@ -264,6 +264,17 @@ static inline void list_move_tail(struct list_head *list,
         list_add_tail(list, head);
 }
 
+/**
+ * list_is_last - tests whether @list is the last entry in list @head
+ * @list: the entry to test
+ * @head: the head of the list
+ */
+static inline int list_is_last(const struct list_head *list,
+				const struct list_head *head)
+{
+	return list->next == head;
+}
+
 /**
  * list_empty - tests whether a list is empty
  * @head: the list to test.