From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from mail.zytor.com (terminus.zytor.com [198.137.202.136]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id 2D8933E9580; Wed, 25 Mar 2026 15:58:34 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=198.137.202.136 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1774454316; cv=none; b=Rf8l0BmT10S+p9Q1SwbmldrlK8vBBAc1Wvn0OQ6G7l8MMhZ9PjZfEDZ3sAp63FrOKI46h8Ol/DqnNOJa7INwIxMmhfY82xYJYx0Qpz1d7WxFRsqOSSnLTnl17/LEfK0jwnYB7/a2Yo4/33uFmOSNU6lhMokMTuoTm4z/qwWbI/o= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1774454316; c=relaxed/simple; bh=3xxfI6gRTrix+3bAjHjl+NqvLIsP+3Ljt4acojJrtbk=; h=Message-ID:Date:MIME-Version:Subject:To:Cc:References:From: In-Reply-To:Content-Type; b=UXkurVSZsy/o9Z9tSPnzrSAAjCoveZHpl57DcBhGxHkZ7MQh3O+uwHTe9sPDY1hwYQ+jVlsCr/EB9rQbjCAtGjP5zjzvT2VGwdIcvA7HQmCR/uILU4XzvYicVPJ8lF6QUQHTgtRdAh18q9hSr/4DMYsofmCNqwOT+Td8/d1gj/c= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=zytor.com; spf=pass smtp.mailfrom=zytor.com; dkim=pass (2048-bit key) header.d=zytor.com header.i=@zytor.com header.b=RHklxLfi; arc=none smtp.client-ip=198.137.202.136 Authentication-Results: smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=zytor.com Authentication-Results: smtp.subspace.kernel.org; spf=pass smtp.mailfrom=zytor.com Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=zytor.com header.i=@zytor.com header.b="RHklxLfi" Received: from [IPV6:2601:646:8081:9481:619:3ffd:957c:6748] ([IPv6:2601:646:8081:9481:619:3ffd:957c:6748]) (authenticated bits=0) by mail.zytor.com (8.18.1/8.17.1) with ESMTPSA id 62PFE0CM3057644 (version=TLSv1.3 cipher=TLS_AES_128_GCM_SHA256 bits=128 verify=NO); Wed, 25 Mar 2026 08:14:01 -0700 DKIM-Filter: OpenDKIM Filter v2.11.0 mail.zytor.com 62PFE0CM3057644 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=zytor.com; s=2026022301; t=1774451646; bh=m+c64TX9TAStG5n4QBbOwBHxDLYCJ+PjBNcVbNtGMx8=; h=Date:Subject:To:Cc:References:From:In-Reply-To:From; b=RHklxLfiOlJf6ydmRmJruDGnJeWMZSbz2TgxABeLCgguQaUbYsc9vR9kpgjAtaRk6 D7BSdsEd+lvAoCQg+RbZcvgtOjl5ikAs97OdfN6AYdowAx+SkUCmf/8a7rxvIX1199 n1C53Bc4syiY0JVf3wcgOdQFaGlli8ZPulCYU+tqXHoikLbqaKaukH46nBwaABbmkR FqzyBozoAq6ydYU475wWtUu9yg9VB2ezfO6KFROa2nbUotE425BtfRIaR4mJKhTxf8 dVWONsYwf/QQWCyfrPeHYwfZmG0pn9A7Kw7p2V6FDiyY1iJynsS0qMGEvvGfkQIYvu dNPPZv5PxcbxQ== Message-ID: <59d1d178-c141-4229-81e9-a6c23fa81f2f@zytor.com> Date: Wed, 25 Mar 2026 08:13:55 -0700 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 02/17] raid6: remove __KERNEL__ ifdefs To: Christoph Hellwig , Andrew Morton Cc: Catalin Marinas , Will Deacon , Ard Biesheuvel , Huacai Chen , WANG Xuerui , Madhavan Srinivasan , Michael Ellerman , Nicholas Piggin , "Christophe Leroy (CS GROUP)" , Paul Walmsley , Palmer Dabbelt , Albert Ou , Alexandre Ghiti , Heiko Carstens , Vasily Gorbik , Alexander Gordeev , Christian Borntraeger , Sven Schnelle , Thomas Gleixner , Ingo Molnar , Borislav Petkov , Dave Hansen , x86@kernel.org, Herbert Xu , Dan Williams , Chris Mason , David Sterba , Arnd Bergmann , Song Liu , Yu Kuai , Li Nan , linux-kernel@vger.kernel.org, linux-arm-kernel@lists.infradead.org, loongarch@lists.linux.dev, linuxppc-dev@lists.ozlabs.org, linux-riscv@lists.infradead.org, linux-s390@vger.kernel.org, linux-crypto@vger.kernel.org, linux-btrfs@vger.kernel.org, linux-arch@vger.kernel.org, linux-raid@vger.kernel.org References: <20260324064115.3217136-1-hch@lst.de> <20260324064115.3217136-3-hch@lst.de> Content-Language: en-US, sv-SE From: "H. Peter Anvin" In-Reply-To: <20260324064115.3217136-3-hch@lst.de> Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 7bit On 2026-03-23 23:40, Christoph Hellwig wrote: > With the test code ported to kernel space, none of this is required. I really *really* don't like this. The ability of running in user space is really useful when it comes to developing new code for new platforms, which happens often enough for this code. -hpa