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 C32E5F54ADC for ; Tue, 24 Mar 2026 16:42:35 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=lists.infradead.org; s=bombadil.20210309; h=Sender: Content-Transfer-Encoding:Content-Type:List-Subscribe:List-Help:List-Post: List-Archive:List-Unsubscribe:List-Id:Mime-Version:References:In-Reply-To: Message-Id:Subject:Cc:To:From:Date:Reply-To:Content-ID:Content-Description: Resent-Date:Resent-From:Resent-Sender:Resent-To:Resent-Cc:Resent-Message-ID: List-Owner; bh=P54lqsYBzJ4rBa+hOJ6JSxdwJDtrBsz4HB1KCQ8akz4=; b=pjo5O5v7oAlgj3 UrTpSrs+vHKqTkiGU8WVmDv5Dg8ORd2HK5aZ/gs/Lz3wG6YYhIGo9wSlVNyjmIiXCnAb7Qg9ZFqtG 2cE3Xcoz9lZz6Cszp8j4ZPVgRK4oxORb58KxKvzUyMdUxrioaT/TyU8A0gkocwYZYQmv83OBWTpeQ QOB8F1Ach82VDw9kyTVi7uX0thw3l6ovpxpirQSrJ7iQjo3Tsi3iQaei0mBKYqIYHppNy+Rp4tOO9 35bel3w2ILHlEw48NtyPcNyEa70ldrtx7s14+37zPaJZMiARwaVZbtZTso8P28aWf+rrWXK0FhrTe 0/MTrzacl0GOAqS09gdQ==; Received: from localhost ([::1] helo=bombadil.infradead.org) by bombadil.infradead.org with esmtp (Exim 4.98.2 #2 (Red Hat Linux)) id 1w54pn-00000001u9M-22kb; Tue, 24 Mar 2026 16:42:27 +0000 Received: from sea.source.kernel.org ([2600:3c0a:e001:78e:0:1991:8:25]) by bombadil.infradead.org with esmtps (Exim 4.98.2 #2 (Red Hat Linux)) id 1w54pk-00000001u8s-07Gr; Tue, 24 Mar 2026 16:42:25 +0000 Received: from smtp.kernel.org (transwarp.subspace.kernel.org [100.75.92.58]) by sea.source.kernel.org (Postfix) with ESMTP id B7A3344260; Tue, 24 Mar 2026 16:42:22 +0000 (UTC) Received: by smtp.kernel.org (Postfix) with ESMTPSA id E44B6C19424; Tue, 24 Mar 2026 16:42:20 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=linux-foundation.org; s=korg; t=1774370542; bh=TDgLcRhij5JQVZa60QmaxqOx203j51xbjV/q4WkoTac=; h=Date:From:To:Cc:Subject:In-Reply-To:References:From; b=DQOwZZrwl+GxIARWYI809PrjYZgIC0xfeubUvTNhKKAudWXflkBkHkOQxqHhcKfI5 YEd8AoepFJifaDz0cIKUFkW85RTTMclmIhV4gfAqh3VY34KIx4Pm4UqjUG6y+A3vml FWjY7pXOdRDrlwOVcmMMkatFHeB/Fbf82T5tVjrs= Date: Tue, 24 Mar 2026 09:42:20 -0700 From: Andrew Morton To: Christoph Hellwig Cc: Richard Henderson , Matt Turner , Magnus Lindholm , Russell King , 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 , "David S. Miller" , Andreas Larsson , Richard Weinberger , Anton Ivanov , Johannes Berg , Thomas Gleixner , Ingo Molnar , Borislav Petkov , Dave Hansen , x86@kernel.org, "H. Peter Anvin" , Herbert Xu , Dan Williams , Chris Mason , David Sterba , Arnd Bergmann , Song Liu , Yu Kuai , Li Nan , "Theodore Ts'o" , "Jason A. Donenfeld" , linux-alpha@vger.kernel.org, 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, sparclinux@vger.kernel.org, linux-um@lists.infradead.org, linux-crypto@vger.kernel.org, linux-btrfs@vger.kernel.org, linux-arch@vger.kernel.org, linux-raid@vger.kernel.org Subject: Re: cleanup the RAID5 XOR library v3 Message-Id: <20260324094220.09e6eb90afc7f55937847f22@linux-foundation.org> In-Reply-To: <20260324062211.3216301-1-hch@lst.de> References: <20260324062211.3216301-1-hch@lst.de> X-Mailer: Sylpheed 3.8.0beta1 (GTK+ 2.24.33; x86_64-pc-linux-gnu) Mime-Version: 1.0 X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20260324_094224_130597_5BB1B2B4 X-CRM114-Status: GOOD ( 17.23 ) X-BeenThere: linux-riscv@lists.infradead.org X-Mailman-Version: 2.1.34 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit Sender: "linux-riscv" Errors-To: linux-riscv-bounces+linux-riscv=archiver.kernel.org@lists.infradead.org On Tue, 24 Mar 2026 07:21:36 +0100 Christoph Hellwig wrote: > the XOR library used for the RAID5 parity is a bit of a mess right now. > The main file sits in crypto/ despite not being cryptography and not > using the crypto API, with the generic implementations sitting in > include/asm-generic and the arch implementations sitting in an asm/ > header in theory. The latter doesn't work for many cases, so > architectures often build the code directly into the core kernel, or > create another module for the architecture code. > > Changes this to a single module in lib/ that also contains the > architecture optimizations, similar to the library work Eric Biggers > has done for the CRC and crypto libraries later. After that it changes > to better calling conventions that allow for smarter architecture > implementations (although none is contained here yet), and uses > static_call to avoid indirection function call overhead. Thanks, I've updated mm.git's mm-nonmm-unstable branch to this version of the patchset. _______________________________________________ linux-riscv mailing list linux-riscv@lists.infradead.org http://lists.infradead.org/mailman/listinfo/linux-riscv