Re: [patch 17/24] x86/speculation: Move IBPB control out of switch_mm()

[Thomas Gleixner]

On Thu, 22 Nov 2018, Ingo Molnar wrote:
> * Thomas Gleixner <tglx@xxxxxxxxxxxxx> wrote:
> >  	/*
> >  	 * Now maybe reload the debug registers and handle I/O bitmaps
> >  	 */
> > -	if (unlikely(task_thread_info(next_p)->flags & _TIF_WORK_CTXSW_NEXT ||
> > -		     task_thread_info(prev_p)->flags & _TIF_WORK_CTXSW_PREV))
> > +	if (unlikely(next_tif & _TIF_WORK_CTXSW_NEXT ||
> > +		     prev_tif & _TIF_WORK_CTXSW_PREV))
> >  		__switch_to_xtra(prev_p, next_p, tss);
> 
> Hm, the repetition between process_32.c and process_64.c is getting 
> stronger - could some of this be unified into process.c? (in later 
> patches)

Yes, for the price of an out of line call.

Thanks,

	tglx