linux-kernel - [PATCH 2/3] list: introduce list_for_each

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Message-Id: <2b54707c0640114d24a3e08f57fce2576e05bd27.1574974577.git.asml.silence@gmail.com>
Date:   Fri, 29 Nov 2019 00:11:54 +0300
From:   Pavel Begunkov <asml.silence@...il.com>
To:     Jens Axboe <axboe@...nel.dk>, linux-block@...r.kernel.org,
        linux-kernel@...r.kernel.org
Subject: [PATCH 2/3] list: introduce list_for_each_continue()

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

Signed-off-by: Pavel Begunkov <asml.silence@...il.com>
---
 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