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 4FD22D2505F for ; Mon, 12 Jan 2026 09:45:55 +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:Content-Transfer-Encoding: Content-Type:In-Reply-To:From:References:Cc:To:Subject:MIME-Version:Date: Message-ID:Reply-To:Content-ID:Content-Description:Resent-Date:Resent-From: Resent-Sender:Resent-To:Resent-Cc:Resent-Message-ID:List-Owner; bh=fdMLvjeapQ/bfLWsnXGxaJQDtJcQspJseu6jDbRyKHU=; b=bipA7UlgsTQ/LtqOiw2n960CmB CNjlrszscwluQhPIXLhD7s/sgp9vRIJGsxD3t+J21Z0CmvG/BaC19nBVhFj6IKXxKdw3hpIei9eTB J2a/WFflNlY7vg8erI5FheKTSuPCeHniH7cciVivWlwt7GIvzaGNEWeTc30l4Y1LnHvVehrmVhkI9 bbgoagZLwBnXtMS+61XuVCht1iaRB9evBZvdb6NN2Vxm+3djUjKLs5ww++18cJKFVNpquB/Wv/xkZ rcsuz5XYlQly/E1V7CIc5uX4radRSbRSRrk07deT0DJqZlzsgy4ITENr6U7u13RAOwLXf+jkd/ccT 9H3+LTog==; Received: from localhost ([::1] helo=bombadil.infradead.org) by bombadil.infradead.org with esmtp (Exim 4.98.2 #2 (Red Hat Linux)) id 1vfEUe-000000056XA-1WTy; Mon, 12 Jan 2026 09:45:48 +0000 Received: from foss.arm.com ([217.140.110.172]) by bombadil.infradead.org with esmtp (Exim 4.98.2 #2 (Red Hat Linux)) id 1vfEUb-000000056Wf-3U29 for linux-arm-kernel@lists.infradead.org; Mon, 12 Jan 2026 09:45:47 +0000 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 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 X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20260112_014546_060085_399F0B28 X-CRM114-Status: UNSURE ( 8.23 ) X-CRM114-Notice: Please train this message. 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 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