[NETFILTER]: {ip,ip6,arp}_tables: consolidate iterator macros

[safe/jmp/linux-2.6] / include / linux / list.h

diff --git a/include/linux/list.h b/include/linux/list.h
index 9202703..75ce2cb 100644 (file)
--- a/include/linux/list.h
+++ b/include/linux/list.h
@@ -264,8 +264,8 @@ static inline void list_del_init(struct list_head *entry)
  */
 static inline void list_move(struct list_head *list, struct list_head *head)
 {
-        __list_del(list->prev, list->next);
-        list_add(list, head);
+       __list_del(list->prev, list->next);
+       list_add(list, head);
 }
 
 /**
@@ -276,8 +276,8 @@ static inline void list_move(struct list_head *list, struct list_head *head)
 static inline void list_move_tail(struct list_head *list,
                                  struct list_head *head)
 {
-        __list_del(list->prev, list->next);
-        list_add_tail(list, head);
+       __list_del(list->prev, list->next);
+       list_add_tail(list, head);
 }
 
 /**
@@ -478,6 +478,17 @@ static inline void list_splice_init_rcu(struct list_head *list,
                pos = n, n = pos->next)
 
 /**
+ * list_for_each_prev_safe - iterate over a list backwards safe against removal of list entry
+ * @pos:       the &struct list_head to use as a loop cursor.
+ * @n:         another &struct list_head to use as temporary storage
+ * @head:      the head for your list.
+ */
+#define list_for_each_prev_safe(pos, n, head) \
+       for (pos = (head)->prev, n = pos->prev; \
+            prefetch(pos->prev), pos != (head); \
+            pos = n, n = pos->prev)
+
+/**
  * list_for_each_entry -       iterate over list of given type
  * @pos:       the type * to use as a loop cursor.
  * @head:      the head for your list.
@@ -525,6 +536,20 @@ static inline void list_splice_init_rcu(struct list_head *list,
             pos = list_entry(pos->member.next, typeof(*pos), member))
 
 /**
+ * list_for_each_entry_continue_reverse - iterate backwards from the given point
+ * @pos:       the type * to use as a loop cursor.
+ * @head:      the head for your list.
+ * @member:    the name of the list_struct within the struct.
+ *
+ * Start to iterate over list of given type backwards, continuing after
+ * the current position.
+ */
+#define list_for_each_entry_continue_reverse(pos, head, member)                \
+       for (pos = list_entry(pos->member.prev, typeof(*pos), member);  \
+            prefetch(pos->member.prev), &pos->member != (head);        \
+            pos = list_entry(pos->member.prev, typeof(*pos), member))
+
+/**
  * list_for_each_entry_from - iterate over list of given type from the current point
  * @pos:       the type * to use as a loop cursor.
  * @head:      the head for your list.