[PATCH 2/3] list: introduce list_for_each_continue()

From: Pavel Begunkov
Date: Thu Nov 28 2019 - 16:12:32 EST


As other *continue() helpers, this continues iteration from a given
position.

Signed-off-by: Pavel Begunkov <asml.silence@xxxxxxxxx>
---
include/linux/list.h | 10 ++++++++++
1 file changed, 10 insertions(+)

diff --git a/include/linux/list.h b/include/linux/list.h
index 85c92555e31f..3c391bbd03c3 100644
--- a/include/linux/list.h
+++ b/include/linux/list.h
@@ -538,6 +538,16 @@ static inline void list_splice_tail_init(struct list_head *list,
#define list_for_each(pos, head) \
for (pos = (head)->next; pos != (head); pos = pos->next)

+/**
+ * list_for_each_continue - continue iteration over a list
+ * @pos: the &struct list_head to use as a loop cursor.
+ * @head: the head for your list.
+ *
+ * Continue to iterate over a list, continuing after the current position.
+ */
+#define list_for_each_continue(pos, head) \
+ for (pos = pos->next; pos != (head); pos = pos->next)
+
/**
* list_for_each_prev - iterate over a list backwards
* @pos: the &struct list_head to use as a loop cursor.
--
2.24.0