From: Magnus Lindholm <linmag7@gmail.com>
To: Christoph Hellwig <hch@lst.de>
Cc: Andrew Morton <akpm@linux-foundation.org>,
Richard Henderson <richard.henderson@linaro.org>,
Matt Turner <mattst88@gmail.com>,
Russell King <linux@armlinux.org.uk>,
Catalin Marinas <catalin.marinas@arm.com>,
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Huacai Chen <chenhuacai@kernel.org>,
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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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linux-alpha@vger.kernel.org, linux-kernel@vger.kernel.org,
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linux-raid@vger.kernel.org
Subject: Re: [PATCH 10/27] alpha: move the XOR code to lib/raid/
Date: Mon, 16 Mar 2026 23:12:39 +0100 [thread overview]
Message-ID: <CA+=Fv5QkJm8+ysx8W=ypr84oSR=rrikfk-iMMU6_xrtS1PsWvg@mail.gmail.com> (raw)
In-Reply-To: <20260311070416.972667-11-hch@lst.de>
On Wed, Mar 11, 2026 at 8:06 AM Christoph Hellwig <hch@lst.de> wrote:
>
> Move the optimized XOR code out of line into lib/raid.
>
> Note that the giant inline assembly block might be better off as a
> separate assembly source file now, but I'll leave that to the alpha
> maintainers.
>
> Signed-off-by: Christoph Hellwig <hch@lst.de>
> ---
> arch/alpha/include/asm/xor.h | 853 +----------------------------------
> lib/raid/xor/Makefile | 2 +
> lib/raid/xor/alpha/xor.c | 849 ++++++++++++++++++++++++++++++++++
> 3 files changed, 855 insertions(+), 849 deletions(-)
> create mode 100644 lib/raid/xor/alpha/xor.c
>
Hi,
I applied this patch and ran it on my UP2000+
The kernel builds and boots, and I verified the new lib/raid/xor/alpha
implementation using the XOR KUnit test, the test passed, see below:
[ 25.705064] KTAP version 1
[ 25.705064] # Subtest: xor
[ 25.705064] # module: xor_kunit
[ 25.705064] 1..1
[ 28.957992] # xor_test: Test should be marked slow (runtime:
3.253413330s)
[ 28.958969] ok 1 xor_test
Acked-by: Magnus Lindholm <linmag7@gmail.com>
Tested-by: Magnus Lindholm <linmag7@gmail.com>
next prev parent reply other threads:[~2026-03-16 22:12 UTC|newest]
Thread overview: 36+ messages / expand[flat|nested] mbox.gz Atom feed top
2026-03-11 7:03 cleanup the RAID5 XOR library v2 Christoph Hellwig
2026-03-11 7:03 ` [PATCH 01/27] xor: assert that xor_blocks is not from preemptible user context Christoph Hellwig
2026-03-11 7:03 ` [PATCH 02/27] arm/xor: remove in_interrupt() handling Christoph Hellwig
2026-03-11 7:03 ` [PATCH 03/27] um/xor: cleanup xor.h Christoph Hellwig
2026-03-11 8:45 ` Richard Weinberger
2026-03-11 7:03 ` [PATCH 04/27] xor: move to lib/raid/ Christoph Hellwig
2026-03-11 7:03 ` [PATCH 05/27] xor: small cleanups Christoph Hellwig
2026-03-11 7:03 ` [PATCH 06/27] xor: cleanup registration and probing Christoph Hellwig
2026-03-11 7:03 ` [PATCH 07/27] xor: split xor.h Christoph Hellwig
2026-03-11 7:03 ` [PATCH 08/27] xor: remove macro abuse for XOR implementation registrations Christoph Hellwig
2026-03-11 7:03 ` [PATCH 09/27] xor: move generic implementations out of asm-generic/xor.h Christoph Hellwig
2026-03-11 7:03 ` [PATCH 10/27] alpha: move the XOR code to lib/raid/ Christoph Hellwig
2026-03-16 22:12 ` Magnus Lindholm [this message]
2026-03-11 7:03 ` [PATCH 11/27] arm: " Christoph Hellwig
2026-03-11 7:03 ` [PATCH 12/27] arm64: " Christoph Hellwig
2026-03-11 7:03 ` [PATCH 13/27] loongarch: " Christoph Hellwig
2026-03-11 7:03 ` [PATCH 14/27] powerpc: " Christoph Hellwig
2026-03-11 7:03 ` [PATCH 15/27] riscv: " Christoph Hellwig
2026-03-11 7:03 ` [PATCH 16/27] sparc: " Christoph Hellwig
2026-03-11 7:03 ` [PATCH 17/27] s390: " Christoph Hellwig
2026-03-11 7:03 ` [PATCH 18/27] x86: " Christoph Hellwig
2026-03-11 7:03 ` [PATCH 19/27] xor: avoid indirect calls for arm64-optimized ops Christoph Hellwig
2026-03-11 7:03 ` [PATCH 20/27] xor: make xor.ko self-contained in lib/raid/ Christoph Hellwig
2026-03-11 7:03 ` [PATCH 21/27] xor: add a better public API Christoph Hellwig
2026-03-11 7:03 ` [PATCH 22/27] async_xor: use xor_gen Christoph Hellwig
2026-03-11 7:03 ` [PATCH 23/27] btrfs: " Christoph Hellwig
2026-03-12 6:14 ` David Sterba
2026-03-11 7:03 ` [PATCH 24/27] xor: pass the entire operation to the low-level ops Christoph Hellwig
2026-03-11 7:03 ` [PATCH 25/27] xor: use static_call for xor_gen Christoph Hellwig
2026-03-11 7:03 ` [PATCH 26/27] random: factor out a __limit_random_u32_below helper Christoph Hellwig
2026-03-11 22:29 ` Eric Biggers
2026-03-12 8:38 ` David Laight
2026-03-12 13:46 ` Jason A. Donenfeld
2026-03-11 7:03 ` [PATCH 27/27] xor: add a kunit test case Christoph Hellwig
2026-03-12 0:54 ` Eric Biggers
2026-03-11 18:57 ` cleanup the RAID5 XOR library v2 Andrew Morton
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