Re: [patch 13/18] x86, ds: add leakage warning

[Ingo Molnar <mingo@elte.hu>]

* markus.t.metzger@intel.com <markus.t.metzger@intel.com> wrote:

> +static inline void ds_warn_leak(struct task_struct *tsk)
> +{
> +	WARN(tsk->thread.ds_ctx, "leaking DS context\n");
> +}

> +	ds_warn_leak(tsk);

since we normally expect X86_DS enabled i'd suggest this 
simplification: always have thread.ds_ctx around so the WARN_ON can 
go there unconditionally. (it wont trigger in the !DS case)

>  struct task_struct;
>  struct mm_struct;
> +struct ds_context;

why is this needed in processor.h?

ds.h should be split into ds_types.h and ds_api.h, with the pure 
data type definitions in ds_types.h. processor.h (which needs to 
know about the DS context type) then includes ds_types.h - which
is a lightweight header.

Actual DS using facilities also disable ds_api.h.

This keeps data types nicely separated from methods and inlines.

	Ingo