Re: [PATCH 5/5] arm64: Remove TIF_NOHZ

[Will Deacon]

On Fri, Feb 14, 2020 at 04:26:15PM +0100, Frederic Weisbecker wrote:
> The syscall slow path is spuriously invoked when context tracking is
> activated while the entry code calls context tracking from fast path.
> 
> Remove that overhead and the unused flag itself while at it.
> 
> Signed-off-by: Frederic Weisbecker <frederic@xxxxxxxxxx>
> Cc: Thomas Gleixner <tglx@xxxxxxxxxxxxx>
> Cc: Ingo Molnar <mingo@xxxxxxxxxx>
> Cc: Peter Zijlstra <peterz@xxxxxxxxxxxxx>
> Cc: Borislav Petkov <bp@xxxxxxxxx>
> Cc: Catalin Marinas <catalin.marinas@xxxxxxx>
> Cc: Will Deacon <will@xxxxxxxxxx>
> ---
>  arch/arm64/Kconfig                   | 1 -
>  arch/arm64/include/asm/thread_info.h | 4 +---
>  2 files changed, 1 insertion(+), 4 deletions(-)

Acked-by: Will Deacon <will@xxxxxxxxxx>

Do you want this to go via the arm64 tree? It looks like it makes sense
on its own to me, so I could pick it as a fix.

Will