On Fri, 20 Sep 2019, Andy Lutomirski wrote:
> On Thu, Sep 19, 2019 at 8:09 AM Thomas Gleixner wrote:
> >
> > Evaluating _TIF_NOHZ to decide whether to use the slow syscall entry path
> > is not only pointless, it's actually counterproductive:
> >
> > 1) Context tracking code is invoked unconditi
On Thu, Sep 19, 2019 at 8:09 AM Thomas Gleixner wrote:
>
> Evaluating _TIF_NOHZ to decide whether to use the slow syscall entry path
> is not only pointless, it's actually counterproductive:
>
> 1) Context tracking code is invoked unconditionally before that flag is
> evaluated.
>
> 2) If th
Evaluating _TIF_NOHZ to decide whether to use the slow syscall entry path
is not only pointless, it's actually counterproductive:
1) Context tracking code is invoked unconditionally before that flag is
evaluated.
2) If the flag is set the slow path is invoked for nothing due to #1
Remove i
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