From: Christoph Hellwig <hch@lst.de>
To: Eric Biggers <ebiggers@kernel.org>
Cc: Christoph Hellwig <hch@lst.de>,
Andrew Morton <akpm@linux-foundation.org>,
Richard Henderson <richard.henderson@linaro.org>,
Matt Turner <mattst88@gmail.com>,
Magnus Lindholm <linmag7@gmail.com>,
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Catalin Marinas <catalin.marinas@arm.com>,
Will Deacon <will@kernel.org>,
Huacai Chen <chenhuacai@kernel.org>,
WANG Xuerui <kernel@xen0n.name>,
Madhavan Srinivasan <maddy@linux.ibm.com>,
Michael Ellerman <mpe@ellerman.id.au>,
Nicholas Piggin <npiggin@gmail.com>,
"Christophe Leroy (CS GROUP)" <chleroy@kernel.org>,
Paul Walmsley <pjw@kernel.org>,
Palmer Dabbelt <palmer@dabbelt.com>,
Albert Ou <aou@eecs.berkeley.edu>,
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Heiko Carstens <hca@linux.ibm.com>,
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linux-alpha@vger.kernel.org, linux-kernel@vger.kernel.org,
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linux-raid@vger.kernel.org
Subject: Re: [PATCH 21/25] xor: add a better public API
Date: Tue, 3 Mar 2026 17:07:21 +0100 [thread overview]
Message-ID: <20260303160721.GH7021@lst.de> (raw)
In-Reply-To: <20260228065038.GH65277@quark>
On Fri, Feb 27, 2026 at 10:50:38PM -0800, Eric Biggers wrote:
> The alignment requirements on the vectors should be documented, as
> should which values of bytes are accepted. It looks like, at the very
> least, the vectors have to be 32-byte aligned and the length has to be a
> nonzero multiple of 512 bytes. But I didn't check every implementation.
That would match the original use case in the md raid code and also in
file system uses such as btrfs, yes.
next prev parent reply other threads:[~2026-03-03 16:07 UTC|newest]
Thread overview: 71+ messages / expand[flat|nested] mbox.gz Atom feed top
2026-02-26 15:10 cleanup the RAID5 XOR library Christoph Hellwig
2026-02-26 15:10 ` [PATCH 01/25] xor: assert that xor_blocks is not called from interrupt context Christoph Hellwig
2026-02-27 14:24 ` Peter Zijlstra
2026-03-03 16:00 ` Christoph Hellwig
2026-03-03 19:55 ` Eric Biggers
2026-03-04 14:51 ` Christoph Hellwig
2026-03-04 15:15 ` Peter Zijlstra
2026-03-04 15:42 ` Christoph Hellwig
2026-03-04 15:01 ` Heiko Carstens
2026-03-04 15:06 ` Christoph Hellwig
2026-03-04 15:08 ` Heiko Carstens
2026-02-26 15:10 ` [PATCH 02/25] arm/xor: remove in_interrupt() handling Christoph Hellwig
2026-02-26 15:10 ` [PATCH 03/25] um/xor: don't override XOR_SELECT_TEMPLATE Christoph Hellwig
2026-02-26 21:45 ` Richard Weinberger
2026-02-26 22:00 ` hch
2026-02-27 7:39 ` Johannes Berg
2026-02-28 4:30 ` Eric Biggers
2026-03-02 7:38 ` Johannes Berg
2026-02-26 15:10 ` [PATCH 04/25] xor: move to lib/raid/ Christoph Hellwig
2026-02-28 4:35 ` Eric Biggers
2026-03-03 16:01 ` Christoph Hellwig
2026-02-26 15:10 ` [PATCH 05/25] xor: small cleanups Christoph Hellwig
2026-02-26 15:10 ` [PATCH 06/25] xor: cleanup registration and probing Christoph Hellwig
2026-02-28 4:41 ` Eric Biggers
2026-02-26 15:10 ` [PATCH 07/25] xor: split xor.h Christoph Hellwig
2026-02-28 4:43 ` Eric Biggers
2026-03-03 16:03 ` Christoph Hellwig
2026-03-03 16:15 ` Christoph Hellwig
2026-02-26 15:10 ` [PATCH 08/25] xor: remove macro abuse for XOR implementation registrations Christoph Hellwig
2026-02-26 15:10 ` [PATCH 09/25] xor: move generic implementations out of asm-generic/xor.h Christoph Hellwig
2026-02-26 15:40 ` Arnd Bergmann
2026-02-28 7:15 ` Eric Biggers
2026-03-03 16:09 ` Christoph Hellwig
2026-03-10 14:00 ` Christoph Hellwig
2026-02-26 15:10 ` [PATCH 10/25] alpha: move the XOR code to lib/raid/ Christoph Hellwig
2026-02-26 15:10 ` [PATCH 11/25] arm: " Christoph Hellwig
2026-02-26 15:10 ` [PATCH 12/25] arm64: " Christoph Hellwig
2026-02-26 15:10 ` [PATCH 13/25] loongarch: " Christoph Hellwig
2026-02-26 15:10 ` [PATCH 14/25] powerpc: " Christoph Hellwig
2026-02-26 15:10 ` [PATCH 15/25] riscv: " Christoph Hellwig
2026-02-28 5:37 ` Eric Biggers
2026-02-26 15:10 ` [PATCH 16/25] sparc: " Christoph Hellwig
2026-02-28 5:47 ` Eric Biggers
2026-03-03 16:04 ` Christoph Hellwig
2026-02-26 15:10 ` [PATCH 17/25] s390: " Christoph Hellwig
2026-02-27 9:09 ` Heiko Carstens
2026-02-27 14:13 ` Christoph Hellwig
2026-02-26 15:10 ` [PATCH 18/25] x86: " Christoph Hellwig
2026-02-27 14:30 ` Peter Zijlstra
2026-02-27 23:55 ` Eric Biggers
2026-02-28 10:31 ` Peter Zijlstra
2026-03-03 16:05 ` Christoph Hellwig
2026-02-26 15:10 ` [PATCH 19/25] xor: avoid indirect calls for arm64-optimized ops Christoph Hellwig
2026-02-26 15:10 ` [PATCH 20/25] xor: make xor.ko self-contained in lib/raid/ Christoph Hellwig
2026-02-28 6:42 ` Eric Biggers
2026-03-03 16:06 ` Christoph Hellwig
2026-02-26 15:10 ` [PATCH 21/25] xor: add a better public API Christoph Hellwig
2026-02-28 6:50 ` Eric Biggers
2026-03-03 16:07 ` Christoph Hellwig [this message]
2026-03-10 6:58 ` Christoph Hellwig
2026-02-26 15:10 ` [PATCH 22/25] async_xor: use xor_gen Christoph Hellwig
2026-02-28 6:55 ` Eric Biggers
2026-02-26 15:10 ` [PATCH 23/25] btrfs: " Christoph Hellwig
2026-02-26 15:10 ` [PATCH 24/25] xor: pass the entire operation to the low-level ops Christoph Hellwig
2026-02-28 6:58 ` Eric Biggers
2026-03-03 16:09 ` Christoph Hellwig
2026-02-26 15:10 ` [PATCH 25/25] xor: use static_call for xor_gen Christoph Hellwig
2026-02-27 14:36 ` Peter Zijlstra
2026-02-26 18:20 ` cleanup the RAID5 XOR library Andrew Morton
2026-02-28 7:35 ` Eric Biggers
2026-03-03 16:11 ` Christoph Hellwig
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