1 files changed, 18 insertions, 0 deletions

diff --git a/include/linux/seq_file.h b/include/linux/seq_file.h
index 8366d8f12e53..03c0232b4169 100644
--- a/include/linux/seq_file.h
+++ b/include/linux/seq_file.h
@@ -135,4 +135,22 @@ extern struct list_head *seq_list_start_head(struct list_head *head,
 extern struct list_head *seq_list_next(void *v, struct list_head *head,
                 loff_t *ppos);
 
+/*
+ * Helpers for iteration over hlist_head-s in seq_files
+ */
+
+extern struct hlist_node *seq_hlist_start(struct hlist_head *head,
+                                          loff_t pos);
+extern struct hlist_node *seq_hlist_start_head(struct hlist_head *head,
+                                               loff_t pos);
+extern struct hlist_node *seq_hlist_next(void *v, struct hlist_head *head,
+                                         loff_t *ppos);
+
+extern struct hlist_node *seq_hlist_start_rcu(struct hlist_head *head,
+                                              loff_t pos);
+extern struct hlist_node *seq_hlist_start_head_rcu(struct hlist_head *head,
+                                                   loff_t pos);
+extern struct hlist_node *seq_hlist_next_rcu(void *v,
+                                                   struct hlist_head *head,
+                                                   loff_t *ppos);
 #endif