From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org Received: from bombadil.infradead.org (bombadil.infradead.org [198.137.202.133]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.lore.kernel.org (Postfix) with ESMTPS id 8CB6DC55184 for ; Tue, 4 Aug 2026 14:21:46 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=lists.infradead.org; s=bombadil.20210309; h=Sender:List-Subscribe:List-Help :List-Post:List-Archive:List-Unsubscribe:List-Id:In-Reply-To:Content-Type: MIME-Version:References:Message-ID:Subject:Cc:To:From:Date:Reply-To: Content-Transfer-Encoding:Content-ID:Content-Description:Resent-Date: Resent-From:Resent-Sender:Resent-To:Resent-Cc:Resent-Message-ID:List-Owner; bh=SXuWvCMPHuA58AjXtFE+LgWsCi3knhvI6g6+wWexqKo=; b=mL+6l+pCLNl+sQPWdlF421Y1ZO mpnvTmXJDnke63C18jx8pqfyq+IWj4ZuJEJFLyejmwn0Im2S9VRoxmvKGUShM6rXMDQokVvrJrHMQ d3UdpO2UkPV3qx6lw+pyWZoIfcS5wC6pbYwefT79IRQ4w1n4CSGUZKpiAReyKh3wIc1lY6H8l3Du8 H1oMEle8su/Sm4XP5g3TQnBiOgFIdq8ofAinWCte7UpRvzzNOUf8h3aTq7aegCNW0xirFvGHGaXUC P4IRQ7OA+SAb5weLuIbkwoPdabP7EaJWIpvXvwIEgo9s0km1/YD8dVqJk5QsRm5N434ZOd1UUvici X07JsYdg==; Received: from localhost ([::1] helo=bombadil.infradead.org) by bombadil.infradead.org with esmtp (Exim 4.99.1 #2 (Red Hat Linux)) id 1wrG1P-000000024CZ-33Ks; Tue, 04 Aug 2026 14:21:35 +0000 Received: from tor.source.kernel.org ([2600:3c04:e001:324:0:1991:8:25]) by bombadil.infradead.org with esmtps (Exim 4.99.1 #2 (Red Hat Linux)) id 1wrG1O-000000024CL-1uL6 for linux-arm-kernel@lists.infradead.org; Tue, 04 Aug 2026 14:21:34 +0000 Received: from smtp.kernel.org (quasi.space.kernel.org [100.103.45.18]) by tor.source.kernel.org (Postfix) with ESMTP id CE3A560A83; Tue, 4 Aug 2026 14:21:33 +0000 (UTC) Received: by smtp.kernel.org (Postfix) with ESMTPSA id B384E1F000E9; Tue, 4 Aug 2026 14:21:29 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=kernel.org; s=k20260515; t=1785853293; bh=SXuWvCMPHuA58AjXtFE+LgWsCi3knhvI6g6+wWexqKo=; h=Date:From:To:Cc:Subject:References:In-Reply-To; b=MxMkUlSEMSyl400fcanujca9MerVDMrD+X4oLiAd/6QakFTQntELana5HEO7gRi5t XPEM85RdN1R3ZTnD/xvim7V6SOf2UZqnnggSVctyn4EfUhZzpcfNfStR3eD3uDNTo8 zMkbXlqd0+y59qG8qIzuHUI3csXqxDbSUIxGMUISLjL5ypbS7U0qJYx/hWBt6tcl9F ulIR9jO+8mNGR9T1zgyBFYI0PJA8q6N6vzOrhfDLY9YhGXFv5LFCK82qWijBGNJ67L fwuAB44t/3WlDi1dO/cxpa3c87H044QW4vqNNJyx1/Gy9bQC24JrJ1nkmHOJt188el jjGOjgbxXcdGw== Date: Tue, 4 Aug 2026 15:21:14 +0100 From: "Lorenzo Stoakes (ARM)" To: "David Hildenbrand (Arm)" Cc: "Christoph Lameter (Ampere)" , Mark Rutland , Yang Shi , Ryan Roberts , dennis@kernel.org, tj@kernel.org, urezki@gmail.com, catalin.marinas@arm.com, will@kernel.org, akpm@linux-foundation.org, hca@linux.ibm.com, gor@linux.ibm.com, agordeev@linux.ibm.com, linux-mm@kvack.org, linux-arm-kernel@lists.infradead.org, linux-kernel@vger.kernel.org, Linus Torvalds , Jason Gunthorpe Subject: Re: [RFC v2 PATCH 0/16] Optimize this_cpu_*() ops for non-x86 (ARM64 for this series) Message-ID: References: <20260715180455.515692-1-yang@os.amperecomputing.com> <0344c559-1959-4531-9265-d5a5180eb7cd@arm.com> <25d1e09b-53e4-7cd5-87db-b58437e4e690@gentwo.org> <4887267b-dc26-4c33-96ca-8dff054a0d1f@kernel.org> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: X-BeenThere: linux-arm-kernel@lists.infradead.org X-Mailman-Version: 2.1.34 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Sender: "linux-arm-kernel" Errors-To: linux-arm-kernel-bounces+linux-arm-kernel=archiver.kernel.org@lists.infradead.org On Tue, Aug 04, 2026 at 03:15:03PM +0100, Lorenzo Stoakes (ARM) wrote: > Since this work seems to be very much arm64-focused, perhaps it's therefore > worth looking at an alterative solution that's specific to the arch, like the > one suggested by Mark ([1])? Oh I hadn't realised Mark had already posted the series here: https://lore.kernel.org/all/20260728123859.2911495-1-mark.rutland@arm.com/ > [1]:https://lore.kernel.org/linux-arm-kernel/al_DpFJFcmVhxpvW@J2N7QTR9R3/ -- Cheers, Lorenzo