On Tue, Sep 10, 2013 at 12:12:47PM -0500, Alexander Graf wrote:
>
> On 10.09.2013, at 05:21, Paul Mackerras wrote:
>
> > @@ -212,6 +212,7 @@ struct thread_struct {
> > #endif
> > #endif
> > struct thread_fp_state fp_state;
> > + struct thread_fp_state *fp_save_area;
>
> Why do you need these pointers? Couldn't you handle everything you need through preempt notifiers?
As you note in your review of a later patch, no, I need the pointer so
that if in-kernel code wants to use FP or VSX, potentially in the
context of this same process, it knows where to save the FP/VSX state
away to.
Paul.
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