On Fri, 2 May 2014, Linus Torvalds wrote:
> On Fri, May 2, 2014 at 1:30 PM, Thomas Gleixner <t...@linutronix.de> wrote:
> >
> > So what about manipulating the stack so that the popf does not enable
> > interrupts and do an explicit sti to get the benefit of the
> > one-instruction shadow ?
>
> That's what I already suggested in the original "I don't think popf
> works" email.
Missed that.
> It does get more complex since you now have to test things (there are
> very much cases where we get page faults and other exceptions with
> interrupts disabled), but it shouldn't be much worse.
Right. The extra conditional is probably not noticable at all.
Thanks,
tglx
--
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majord...@vger.kernel.org
More majordomo info at http://vger.kernel.org/majordomo-info.html
Please read the FAQ at http://www.tux.org/lkml/
