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Fri, 26 Jun 2026 08:21:21 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=kernel.org; s=k20260515; t=1782462081; bh=cnDZkcdojzG6TP+7FyMqVMauu4QrpFoQrKFZui4fel0=; h=Subject:From:Date:References:In-Reply-To:To:Cc; b=MC6yAmsds/bx8R7anvknX1AQ8wYErykOAlLqPC3rBrW/haRJJv9chUhiwT+CvnTmN khK/Dcw19LSCUFchb8D/hw+DpMaTb1XpLahGVWuQ2ovAXgjD87gIQurL0gIl9+xHit ncTog7IyU918i0n0R2d/om837p9tvnVMwNZwfwlMdGa5QlmnH1j/rqWXUCSJ6gUh9Z brR2GYKjb1zdGevtCBdmugxCTe8YRqU7Ur91VQYGPcJyxomzPIKGl4smPb/Yxi36dG 9lOJILFIUiOpBT1cUYSLvvKVEE9Xu8TR8Q7d0eK5LtRY1OrEVkIWnTXlTpm48x7ej4 4HMiz7mE0JbVg== Received: from [10.30.226.235] (localhost [IPv6:::1]) by aws-us-west-2-korg-oddjob-rhel9-1.codeaurora.org (Postfix) with ESMTP id 198C839389E8; Fri, 26 Jun 2026 08:21:10 +0000 (UTC) Content-Type: text/plain; charset="utf-8" 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 Content-Transfer-Encoding: 8bit Subject: Re: [PATCH 01/19] btrfs: require at least 4 devices for RAID 6 From: patchwork-bot+linux-riscv@kernel.org Message-Id: <178246206859.3816447.16178589769412306177.git-patchwork-notify@kernel.org> Date: Fri, 26 Jun 2026 08:21:08 +0000 References: <20260512052230.2947683-2-hch@lst.de> In-Reply-To: <20260512052230.2947683-2-hch@lst.de> To: Christoph Hellwig Cc: linux-riscv@lists.infradead.org, akpm@linux-foundation.org, catalin.marinas@arm.com, will@kernel.org, ardb@kernel.org, chenhuacai@kernel.org, kernel@xen0n.name, maddy@linux.ibm.com, mpe@ellerman.id.au, npiggin@gmail.com, chleroy@kernel.org, pjw@kernel.org, palmer@dabbelt.com, aou@eecs.berkeley.edu, alex@ghiti.fr, hca@linux.ibm.com, gor@linux.ibm.com, agordeev@linux.ibm.com, borntraeger@linux.ibm.com, svens@linux.ibm.com, tglx@kernel.org, mingo@redhat.com, bp@alien8.de, dave.hansen@linux.intel.com, x86@kernel.org, hpa@zytor.com, herbert@gondor.apana.org.au, dan.j.williams@intel.com, clm@fb.com, dsterba@suse.com, arnd@arndb.de, song@kernel.org, yukuai@fnnas.com, linan122@huawei.com, linux-kernel@vger.kernel.org, linux-arm-kernel@lists.infradead.org, loongarch@lists.linux.dev, linuxppc-dev@lists.ozlabs.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 Hello: This series was applied to riscv/linux.git (fixes) by Andrew Morton : On Tue, 12 May 2026 07:20:41 +0200 you wrote: > While the RAID6 algorithm could in theory support 3 devices by just > copying the data disk to the two parity disks, this version is not only > useless because it is a suboptimal version of 3-way mirroring, but also > broken with various crashes and incorrect parity generation in various > architecture-optimized implementations. Disallow it similar to mdraid > which requires at least 4 devices for RAID 6. > > [...] Here is the summary with links: - [01/19] btrfs: require at least 4 devices for RAID 6 (no matching commit) - [02/19] raid6: turn the userspace test harness into a kunit test (no matching commit) - [03/19] raid6: remove __KERNEL__ ifdefs https://git.kernel.org/riscv/c/3d6beb659ddf - [04/19] raid6: move to lib/raid/ (no matching commit) - [05/19] raid6: remove unused defines in pq.h https://git.kernel.org/riscv/c/06d2a66fb7c0 - [06/19] raid6: remove raid6_get_zero_page https://git.kernel.org/riscv/c/885d31423183 - [07/19] raid6: use named initializers for struct raid6_calls https://git.kernel.org/riscv/c/7e91f76a9668 - [08/19] raid6: improve the public interface (no matching commit) - [09/19] raid6: hide internals (no matching commit) - [10/19] raid6: rework the init helpers (no matching commit) - [11/19] raid6: use static_call for gen_syndrom and xor_syndrom https://git.kernel.org/riscv/c/10f4b8e2a164 - [12/19] raid6: use static_call for raid6_recov_2data and raid6_recov_datap (no matching commit) - [13/19] raid6: update top of file comments https://git.kernel.org/riscv/c/30bf04bd13a5 - [14/19] raid6_kunit: use KUNIT_CASE_PARAM https://git.kernel.org/riscv/c/2175395f76c3 - [15/19] raid6_kunit: dynamically allocate data buffers using vmalloc https://git.kernel.org/riscv/c/d67c25712fe3 - [16/19] raid6_kunit: cleanup dataptr handling https://git.kernel.org/riscv/c/562bcbfcb99b - [17/19] raid6_kunit: randomize parameters and increase limits (no matching commit) - [18/19] raid6_kunit: randomize parameters and increase limits (no matching commit) - [19/19] raid6_kunit: randomize buffer alignment https://git.kernel.org/riscv/c/8cf0a6c4bb9e You are awesome, thank you! -- Deet-doot-dot, I am a bot. https://korg.docs.kernel.org/patchwork/pwbot.html