[Mesa-dev] [RFC 2/3] util: add LIST_MOVE_TAIL to list.h

[Samuel Pitoiset]

Signed-off-by: Samuel Pitoiset <samuel.pitoiset at gmail.com>
---
 src/util/list.h | 9 +++++++++
 1 file changed, 9 insertions(+)

diff --git a/src/util/list.h b/src/util/list.h
index fb566f5..c782ef5 100644
--- a/src/util/list.h
+++ b/src/util/list.h
@@ -116,12 +116,21 @@ static inline void list_validate(struct list_head *list)
       assert(node->next->prev == node && node->prev->next == node);
 }
 
+static inline void list_move_tail(struct list_head *list,
+                                  struct list_head *head)
+{
+    list->next->prev = list->prev;
+    list->prev->next = list->next;
+    list_addtail(list, head);
+}
+
 #define LIST_INITHEAD(__item) list_inithead(__item)
 #define LIST_ADD(__item, __list) list_add(__item, __list)
 #define LIST_ADDTAIL(__item, __list) list_addtail(__item, __list)
 #define LIST_REPLACE(__from, __to) list_replace(__from, __to)
 #define LIST_DEL(__item) list_del(__item)
 #define LIST_DELINIT(__item) list_delinit(__item)
+#define LIST_MOVE_TAIL(__list, __head) list_move_tail(__list, __head)
 
 #define LIST_ENTRY(__type, __item, __field)   \
     ((__type *)(((char *)(__item)) - offsetof(__type, __field)))
-- 
2.4.2