From: Arnaldo Carvalho de Melo <acme@mandriva.com>
Date: Tue, 21 Mar 2006 01:19:17 +0000 (-0800)
Subject: [LIST]: Introduce list_for_each_entry_from
X-Git-Tag: firefly_0821_release~37598^2~195
X-Git-Url: http://demsky.eecs.uci.edu/git/?a=commitdiff_plain;h=e229c2fb3370a0c4ebac06cad67ce1cb35abcfe6;p=firefly-linux-kernel-4.4.55.git

[LIST]: Introduce list_for_each_entry_from

For iterating over list of given type continuing from existing point.

Signed-off-by: Arnaldo Carvalho de Melo <acme@mandriva.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
---

diff --git a/include/linux/list.h b/include/linux/list.h
index beb6e48e116f..67258b47e9ca 100644
--- a/include/linux/list.h
+++ b/include/linux/list.h
@@ -410,6 +410,17 @@ static inline void list_splice_init(struct list_head *list,
 	     prefetch(pos->member.next), &pos->member != (head);	\
 	     pos = list_entry(pos->member.next, typeof(*pos), member))
 
+/**
+ * list_for_each_entry_from -	iterate over list of given type
+ *			continuing from 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_from(pos, head, member) 			\
+	for (; prefetch(pos->member.next), &pos->member != (head);	\
+	     pos = list_entry(pos->member.next, 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.