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-rw-r--r--include/linux/rculist.h13
1 files changed, 13 insertions, 0 deletions
diff --git a/include/linux/rculist.h b/include/linux/rculist.h
index 127f534fec94..36df6ccbc874 100644
--- a/include/linux/rculist.h
+++ b/include/linux/rculist.h
@@ -404,6 +404,19 @@ static inline void list_splice_tail_init_rcu(struct list_head *list,
pos = list_entry_rcu(pos->member.next, typeof(*pos), member))
/**
+ * list_for_each_entry_from_rcu - iterate over a list from current point
+ * @pos: the type * to use as a loop cursor.
+ * @head: the head for your list.
+ * @member: the name of the list_node within the struct.
+ *
+ * Iterate over the tail of a list starting from a given position,
+ * which must have been in the list when the RCU read lock was taken.
+ */
+#define list_for_each_entry_from_rcu(pos, head, member) \
+ for (; &(pos)->member != (head); \
+ pos = list_entry_rcu(pos->member.next, typeof(*(pos)), member))
+
+/**
* hlist_del_rcu - deletes entry from hash list without re-initialization
* @n: the element to delete from the hash list.
*