Initial commit; kernel source import

drivers/md/dm-verity.h

@@ -0,0 +1,45 @@
+/*
+ * Copyright (C) 2010 The Chromium OS Authors <chromium-os-dev@chromium.org>
+ *                    All Rights Reserved.
+ *
+ * This file is released under the GPL.
+ *
+ * Provide error types for use when creating a custom error handler.
+ * See Documentation/device-mapper/dm-verity.txt
+ */
+#ifndef DM_VERITY_H
+#define DM_VERITY_H
+
+#include <linux/notifier.h>
+
+struct dm_verity_error_state {
+	int code;
+	int transient;  /* Likely to not happen after a reboot */
+	u64 block;
+	const char *message;
+
+	sector_t dev_start;
+	sector_t dev_len;
+	struct block_device *dev;
+
+	sector_t hash_dev_start;
+	sector_t hash_dev_len;
+	struct block_device *hash_dev;
+
+	/* Final behavior after all notifications are completed. */
+	int behavior;
+};
+
+/* This enum must be matched to allowed_error_behaviors in dm-verity.c */
+enum dm_verity_error_behavior {
+	DM_VERITY_ERROR_BEHAVIOR_EIO = 0,
+	DM_VERITY_ERROR_BEHAVIOR_PANIC,
+	DM_VERITY_ERROR_BEHAVIOR_NONE,
+	DM_VERITY_ERROR_BEHAVIOR_NOTIFY
+};
+
+
+int dm_verity_register_error_notifier(struct notifier_block *nb);
+int dm_verity_unregister_error_notifier(struct notifier_block *nb);
+
+#endif  /* DM_VERITY_H */