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-rw-r--r--kernel/bpf/map_in_map.h23
1 files changed, 23 insertions, 0 deletions
diff --git a/kernel/bpf/map_in_map.h b/kernel/bpf/map_in_map.h
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index 000000000000..177fadb689dc
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+++ b/kernel/bpf/map_in_map.h
@@ -0,0 +1,23 @@
+/* Copyright (c) 2017 Facebook
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of version 2 of the GNU General Public
+ * License as published by the Free Software Foundation.
+ */
+#ifndef __MAP_IN_MAP_H__
+#define __MAP_IN_MAP_H__
+
+#include <linux/types.h>
+
+struct file;
+struct bpf_map;
+
+struct bpf_map *bpf_map_meta_alloc(int inner_map_ufd);
+void bpf_map_meta_free(struct bpf_map *map_meta);
+bool bpf_map_meta_equal(const struct bpf_map *meta0,
+ const struct bpf_map *meta1);
+void *bpf_map_fd_get_ptr(struct bpf_map *map, struct file *map_file,
+ int ufd);
+void bpf_map_fd_put_ptr(void *ptr);
+
+#endif