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 lists.ozlabs.org (lists.ozlabs.org [112.213.38.117]) (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 AB330D2505E for ; Mon, 12 Jan 2026 09:46:20 +0000 (UTC) Received: from boromir.ozlabs.org (localhost [127.0.0.1]) by lists.ozlabs.org (Postfix) with ESMTP id 4dqSF70xRfz304f; Mon, 12 Jan 2026 20:46:19 +1100 (AEDT) Authentication-Results: lists.ozlabs.org; arc=none smtp.remote-ip=217.140.110.172 ARC-Seal: i=1; a=rsa-sha256; d=lists.ozlabs.org; s=201707; t=1768211179; cv=none; b=U4TT0geCVwyP5iZyhnQmFnRrJgXTjg/FC9CoO44Wq/Qc7d2Xq+u+UkQSAR0SblAy1ND92ICeR3vhbIR6ysdzgz0Y06z+PWCuBUTvII4mtnpwgmU4FZiSIpUC6huy4QCLi/ml4JzfF45yvUJOA5haUlg+3WJibTc8IXyGHQW9v5Xv+bkVLhygcLZFr4JZks+EVAz7PdPvzi/+BKZsslm/4KJrhLP4H3GD9fW1k5Jn6aydt4OqjWnz98SgkVdKO2lb9Fj+BGC9r1Nlz3b4NJMHYifr2zpuwXqra0IX6xRfQC6Swy9c8J7IQttateWgZgs2SaULxIYgJAyKC0yLiQ/oPg== ARC-Message-Signature: i=1; a=rsa-sha256; d=lists.ozlabs.org; s=201707; t=1768211179; c=relaxed/relaxed; bh=fdMLvjeapQ/bfLWsnXGxaJQDtJcQspJseu6jDbRyKHU=; h=Message-ID:Date:MIME-Version:Subject:To:Cc:References:From: In-Reply-To:Content-Type; b=aXS9rCHk1ifjV0PEx7tsiPnelrsgOgWVwovRjb2ZkbDiqS6+xsZwecF4J6BWqXoCINNY18rSjKX9PqU60yoU9A2OAh/ubr9d4C3wqsId5YPoINqzkL6I5Xbs9u7RHt6fDydpkOGCM20vxM/IKFc7GbFr0wy7ZtRF1Jyp4pVX/egljKtUI6yavvanieIjh6585jT8/oBYDqux/uwrM1UQnStqDzy41m0y86DVC7UsBf/4d2422I4DPx6A23b9viAFhHWCXJB6JMoPVWkdqjnagJweGP2Tods4R3rTxiXpjJ6QF7q/CfTUp1EJ0cZXzpBNE2B/9tv9XtV6QuF+U1b3Lg== ARC-Authentication-Results: i=1; lists.ozlabs.org; dmarc=pass (p=none dis=none) header.from=arm.com; spf=pass (client-ip=217.140.110.172; helo=foss.arm.com; envelope-from=kevin.brodsky@arm.com; receiver=lists.ozlabs.org) smtp.mailfrom=arm.com Authentication-Results: lists.ozlabs.org; dmarc=pass (p=none dis=none) header.from=arm.com Authentication-Results: lists.ozlabs.org; spf=pass (sender SPF authorized) smtp.mailfrom=arm.com (client-ip=217.140.110.172; helo=foss.arm.com; envelope-from=kevin.brodsky@arm.com; receiver=lists.ozlabs.org) Received: from foss.arm.com (foss.arm.com [217.140.110.172]) by lists.ozlabs.org (Postfix) with ESMTP id 4dqSF60Dg9z2ywy for ; Mon, 12 Jan 2026 20:46:16 +1100 (AEDT) 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 5A486339; Mon, 12 Jan 2026 01:45:37 -0800 (PST) Received: from [10.57.48.185] (unknown [10.57.48.185]) by usa-sjc-imap-foss1.foss.arm.com (Postfix) with ESMTPSA id D5C6F3F694; Mon, 12 Jan 2026 01:45:36 -0800 (PST) Message-ID: Date: Mon, 12 Jan 2026 10:45:34 +0100 X-Mailing-List: linuxppc-dev@lists.ozlabs.org List-Id: List-Help: List-Owner: List-Post: List-Archive: , List-Subscribe: , , List-Unsubscribe: Precedence: list MIME-Version: 1.0 User-Agent: Mozilla Thunderbird Subject: Re: [PATCH v6 14/14] mm: Add basic tests for lazy_mmu To: "David Hildenbrand (Red Hat)" , linux-mm@kvack.org Cc: linux-kernel@vger.kernel.org, Alexander Gordeev , Andreas Larsson , Andrew Morton , Anshuman Khandual , Boris Ostrovsky , Borislav Petkov , Catalin Marinas , Christophe Leroy , Dave Hansen , "David S. Miller" , David Woodhouse , "H. Peter Anvin" , Ingo Molnar , Jann Horn , Juergen Gross , "Liam R. Howlett" , Lorenzo Stoakes , Madhavan Srinivasan , Michael Ellerman , Michal Hocko , Mike Rapoport , Nicholas Piggin , Peter Zijlstra , "Ritesh Harjani (IBM)" , Ryan Roberts , Suren Baghdasaryan , Thomas Gleixner , Venkat Rao Bagalkote , Vlastimil Babka , Will Deacon , Yeoreum Yun , linux-arm-kernel@lists.infradead.org, linuxppc-dev@lists.ozlabs.org, sparclinux@vger.kernel.org, xen-devel@lists.xenproject.org, x86@kernel.org References: <20251215150323.2218608-1-kevin.brodsky@arm.com> <20251215150323.2218608-15-kevin.brodsky@arm.com> <1e123306-0efe-457f-953b-d4a27ce6bc60@kernel.org> From: Kevin Brodsky Content-Language: en-GB In-Reply-To: <1e123306-0efe-457f-953b-d4a27ce6bc60@kernel.org> Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit On 09/01/2026 16:07, David Hildenbrand (Red Hat) wrote: > > Very nice test 🙂 Thanks! > > I think I prefer the EXPORT_SYMBOL_IF_KUNIT over disabling the test > for PPC and over making lazy_mmu_mode_enable() non-inlined functions > with an exported symbol The EXPORT_SYMBOL_IF_KUNIT approach is what's currently in mm-unstable (with the fixes from Ritesh and me). - Kevin