[patch 3/6] statistics infrastructure - prerequisite: list operation
This patch adds another list_for_each_* derivate. I can't work around it
because there is a list that I need to search both ways.
Signed-off-by: Martin Peschke <[email protected]>
---
list.h | 12 ++++++++++++
1 files changed, 12 insertions(+)
diff -Nurp c/include/linux/list.h d/include/linux/list.h
--- c/include/linux/list.h 2005-12-14 12:51:52.000000000 +0100
+++ d/include/linux/list.h 2005-12-14 13:56:08.000000000 +0100
@@ -409,6 +409,18 @@ static inline void list_splice_init(stru
pos = list_entry(pos->member.next, typeof(*pos), member))
/**
+ * list_for_each_entry_continue_reverse - iterate backwards over list
+ * of given type continuing before existing point
+ * @pos: the type * to use as a loop counter.
+ * @head: the head for your list.
+ * @member: the name of the list_struct within the struct.
+ */
+#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_safe - iterate over list of given type safe against removal of list entry
* @pos: the type * to use as a loop counter.
* @n: another type * to use as temporary storage