linux-kernel - Re: [PATCH 6/6] powerpc/64s: Do not re-activate batched TLB flush

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Message-ID: <aFGFl9Dvb9zdC3JS@li-008a6a4c-3549-11b2-a85c-c5cc2836eea2.ibm.com>
Date: Tue, 17 Jun 2025 17:11:19 +0200
From: Alexander Gordeev <agordeev@...ux.ibm.com>
To: Madhavan Srinivasan <maddy@...ux.ibm.com>,
        Michael Ellerman <mpe@...erman.id.au>,
        Nicholas Piggin <npiggin@...il.com>
Cc: linux-kernel@...r.kernel.org, linuxppc-dev@...ts.ozlabs.org
Subject: Re: [PATCH 6/6] powerpc/64s: Do not re-activate batched TLB flush

On Thu, Jun 12, 2025 at 07:36:13PM +0200, Alexander Gordeev wrote:
> Since commit b9ef323ea168 ("powerpc/64s: Disable preemption in hash
> lazy mmu mode") a task can not be preempted while in lazy MMU mode.
> Therefore, the batch re-activation code is never called, so remove it.
> 
> Signed-off-by: Alexander Gordeev <agordeev@...ux.ibm.com>
> ---
>  arch/powerpc/include/asm/thread_info.h |  2 --
>  arch/powerpc/kernel/process.c          | 25 -------------------------
>  2 files changed, 27 deletions(-)

Hi All,

(I trimmed non-ppc mailing lists/people).

The whole series does not seem to make it, but this patch alone is still
applicable and makes sence, if I am not mistaken.

Thanks!