1 files changed, 34 insertions, 0 deletions

diff --git a/fs/seq_file.c b/fs/seq_file.c
index 0ac22af7afe5..49194a4e6b91 100644
--- a/fs/seq_file.c
+++ b/fs/seq_file.c
@@ -447,3 +447,37 @@ int seq_puts(struct seq_file *m, const char *s)
         return -1;
 }
 EXPORT_SYMBOL(seq_puts);
+
+struct list_head *seq_list_start(struct list_head *head, loff_t pos)
+{
+        struct list_head *lh;
+
+        list_for_each(lh, head)
+                if (pos-- == 0)
+                        return lh;
+
+        return NULL;
+}
+
+EXPORT_SYMBOL(seq_list_start);
+
+struct list_head *seq_list_start_head(struct list_head *head, loff_t pos)
+{
+        if (!pos)
+                return head;
+
+        return seq_list_start(head, pos - 1);
+}
+
+EXPORT_SYMBOL(seq_list_start_head);
+
+struct list_head *seq_list_next(void *v, struct list_head *head, loff_t *ppos)
+{
+        struct list_head *lh;
+
+        lh = ((struct list_head *)v)->next;
+        ++*ppos;
+        return lh == head ? NULL : lh;
+}
+
+EXPORT_SYMBOL(seq_list_next);