Re: [RFC] [PATCH] cache pollution aware __copy_from_user_ll()

Hiro Yoshioka
2005-08-25T04:57:49Z

From: Hirokazu Takahashi <taka@valinux.co.jp>
> > The following patch does not use MMX regsiters so that we don't have
> > to worry about save/restore the FPU/MMX states.
> >
> > What do you think?
>
> I think __copy_user_zeroing_intel_nocache() should be followed by sfence
> or mfence instruction to flush the data.

Thanks. I'll implement it.

Regards,
Hiro