[PATCH][2.5] introduce list_move macros (revisited)

[Lightweight patch manager]

This is the only _global_ patch about the list_move macros, which means 
introducing them. Here they are, revisited:

--- linus-2.5/include/linux/list.h	Sun Jun  9 04:17:14 2002
+++ thunder-2.5/include/linux/list.h	Sun Jun  9 06:40:14 2002
@@ -174,6 +174,26 @@
 	for (pos = (head)->next, n = pos->next; pos != (head); \
 		pos = n, n = pos->next)
 
+/**
+ * list_move           - move a list entry from a right after b
+ * @list       the entry to move
+ * @head       the entry to move after
+ */
+#define list_move(list,head) \
+        do { __list_del(list->prev, list->next); \
+             list_add(list,head); } \
+        while(0)
+
+/**
+ * list_move_tail      - move a list entry from a right before b
+ * @list       the entry to move
+ * @head       the entry that will come after ours
+ */
+#define list_move_tail(list,head) \
+        do { __list_del(list->prev, list->next); \
+             list_add_tail(list,head); } \
+        while(0)
+
 #endif /* __KERNEL__ || _LVM_H_INCLUDE */
 
 #endif

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