From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from foss.arm.com (foss.arm.com [217.140.110.172]) by smtp.subspace.kernel.org (Postfix) with ESMTP id 1316E1AF0C8 for ; Fri, 3 Oct 2025 09:38:26 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=217.140.110.172 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1759484309; cv=none; b=G8JGR0Kc3ap5LquNUIwoJeLRIVbVPKZSajjcX4H6FNp5J10M49AbhEp0asel20LJZhLIJ1EFBXl9aqKTawXG1ixJgmfrEtzQQQ8KP4Rv9E/0tTH1H344zsH/wZj53TzcvPTDngz/G29EY9rT/qgR0HuCQ22J33MIQqY+YZjZ08E= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1759484309; c=relaxed/simple; bh=bO2Xi6RrCMi33+65AM5z3Avy5D4qvt/c3ObbwI2c6kw=; h=Message-ID:Date:MIME-Version:Subject:To:Cc:References:From: In-Reply-To:Content-Type; b=N9ClbdywHC1tKJkHlqgvJaMoIG/N6xXKt/nCaJgfPCpdPcYlj4vX+umFr0OAhu/olAS6dVbNGCaawqbECUuiH9dT6/2z3aa+fO2tKFdrfO7aYJJ8IBoCNZSw28dBpQQQzRJT3TdvEl5tNaX0Iiqq/kyYyB2J3A3n3+KOCBXidbM= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=arm.com; spf=pass smtp.mailfrom=arm.com; arc=none smtp.client-ip=217.140.110.172 Authentication-Results: smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=arm.com Authentication-Results: smtp.subspace.kernel.org; spf=pass smtp.mailfrom=arm.com Received: from usa-sjc-imap-foss1.foss.arm.com (unknown [10.121.207.14]) by usa-sjc-mx-foss1.foss.arm.com (Postfix) with ESMTP id F2D271655; Fri, 3 Oct 2025 02:38:17 -0700 (PDT) Received: from [10.44.160.83] (e126510-lin.lund.arm.com [10.44.160.83]) by usa-sjc-imap-foss1.foss.arm.com (Postfix) with ESMTPSA id 6FC5C3F66E; Fri, 3 Oct 2025 02:38:24 -0700 (PDT) Message-ID: Date: Fri, 3 Oct 2025 11:38:21 +0200 Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 User-Agent: Mozilla Thunderbird Subject: Re: [PATCH 6/6] powerpc/64s: Do not re-activate batched TLB flush To: Alexander Gordeev , Madhavan Srinivasan , Michael Ellerman , Nicholas Piggin Cc: linux-kernel@vger.kernel.org, linuxppc-dev@lists.ozlabs.org References: <8625a1d97dcf4ae499b4bb341e27346f768a7248.1749747752.git.agordeev@linux.ibm.com> Content-Language: en-GB From: Kevin Brodsky In-Reply-To: Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 7bit On 17/06/2025 17:11, Alexander Gordeev wrote: > 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 >> --- >> 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. Yes, I agree. I arrived at the same conclusion working on the next version of the nested lazy_mmu series [1]. May I include this patch in v3? - Kevin [1] https://lore.kernel.org/all/20250908073931.4159362-1-kevin.brodsky@arm.com/