[PATCH v3 3/5] fs: Wire up SED/Opal to ioctl

[Christoph Hellwig]

> @@ -853,6 +854,7 @@ struct file {
>  #ifdef CONFIG_SECURITY
>  	void			*f_security;
>  #endif
> +	struct sed_context      *f_sedctx;

Adding a new field to the global struct file for a block driver
feature is not acceptable.  And I don't really see why it would
be nessecary anyway.