Re: [patch V2 09/17] x86/entry: Remove _TIF_NOHZ from _TIF_WORK_SYSCALL_ENTRY

[Frederic Weisbecker]

On Wed, Oct 23, 2019 at 02:27:14PM +0200, Thomas Gleixner wrote:
> From: Thomas Gleixner <tglx@xxxxxxxxxxxxx>
> 
> 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 it.
> 
> Signed-off-by: Thomas Gleixner <tglx@xxxxxxxxxxxxx>

I'm borrowing this patch for a series of mine. But if you apply
it in the meantime, that would be even better :-)

Thanks!