From: "Ard Biesheuvel" <ardb@kernel•org>
To: "Christoph Hellwig" <hch@lst•de>,
"Andrew Morton" <akpm@linux-foundation•org>
Cc: "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>,
"Alexandre Ghiti" <alex@ghiti•fr>,
"Heiko Carstens" <hca@linux•ibm.com>,
"Vasily Gorbik" <gor@linux•ibm.com>,
"Alexander Gordeev" <agordeev@linux•ibm.com>,
"Christian Borntraeger" <borntraeger@linux•ibm.com>,
"Sven Schnelle" <svens@linux•ibm.com>,
"Thomas Gleixner" <tglx@kernel•org>,
"Ingo Molnar" <mingo@redhat•com>,
"Borislav Petkov" <bp@alien8•de>,
"Dave Hansen" <dave.hansen@linux•intel.com>,
x86@kernel•org, "H . Peter Anvin" <hpa@zytor•com>,
"Herbert Xu" <herbert@gondor•apana.org.au>,
"Dan Williams" <dan.j.williams@intel•com>,
"Chris Mason" <clm@fb•com>, "David Sterba" <dsterba@suse•com>,
"Arnd Bergmann" <arnd@arndb•de>, "Song Liu" <song@kernel•org>,
"Yu Kuai" <yukuai@fnnas•com>, "Li Nan" <linan122@huawei•com>,
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
Subject: Re: cleanup the RAID6 P/Q library v2
Date: Tue, 12 May 2026 11:50:15 +0200 [thread overview]
Message-ID: <d40e984f-7dec-425c-bf80-a255980c7457@app.fastmail.com> (raw)
In-Reply-To: <20260512052230.2947683-1-hch@lst.de>
On Tue, 12 May 2026, at 07:20, Christoph Hellwig wrote:
> Hi all,
>
> this series cleans up the RAID6 P/Q library to match the recent updates
> to the RAID 5 XOR library and other CRC/crypto libraries. This includes
> providing properly documented external interfaces, hiding the internals,
> using static_call instead of indirect calls and turning the user space
> test suite into an in-kernel kunit test which is also extended to
> improve coverage.
>
> Note that this changes registration so that non-priority algorithms are
> not registered, which greatly helps with the benchmark time at boot time.
> I'd like to encourage all architecture maintainers to see if they can
> further optimized this by registering as few as possible algorithms when
> there is a clear benefit in optimized or more unrolled implementations.
>
> This series sits on top of the "cleanup the RAID5 XOR library v3" series.
>
> A git tree is also available here:
>
> git://git.infradead.org/users/hch/misc.git lib-raid6
>
> Gitweb:
>
>
> https://git.infradead.org/?p=users/hch/misc.git;a=shortlog;h=refs/heads/lib-raid6
>
> Changes since v1:
> - fix arm64 objdir != srcdir builds
> - call the kunit module raid6_kunit.ko from the beginning
> - update MAINTAINERS
> - don't require preemptible context and apply the same restrictions as
> the merged version of the XOR API
> - fix the arm64 default in Kconfig
> - pick the last registered (and presumably most optimized) algorithm when
> benchmarking is disabled
> - port over the randomization fixes from the XOR series
> - misc other kunit cleanups
> - require at least 4 devices for RAID6 to skip broken special cases
>
Tested-by: Ard Biesheuvel <ardb@kernel•org> # kunit only on arm64
Acked-by: Ard Biesheuvel <ardb@kernel•org>
prev parent reply other threads:[~2026-05-12 9:50 UTC|newest]
Thread overview: 36+ messages / expand[flat|nested] mbox.gz Atom feed top
2026-05-12 5:20 cleanup the RAID6 P/Q library v2 Christoph Hellwig
2026-05-12 5:20 ` [PATCH 01/19] btrfs: require at least 4 devices for RAID 6 Christoph Hellwig
2026-05-12 11:42 ` David Sterba
2026-05-13 5:47 ` Christoph Hellwig
2026-05-13 20:19 ` David Sterba
2026-05-14 19:51 ` Goffredo Baroncelli
2026-05-14 19:57 ` H. Peter Anvin
2026-05-15 4:37 ` Christoph Hellwig
2026-05-15 14:51 ` David Sterba
2026-05-15 4:37 ` Christoph Hellwig
2026-05-15 16:50 ` Goffredo Baroncelli
2026-05-15 19:59 ` H. Peter Anvin
2026-05-18 5:12 ` Christoph Hellwig
2026-05-20 8:41 ` Qu Wenruo
2026-05-22 0:17 ` Andrew Morton
2026-05-22 0:27 ` Qu Wenruo
2026-05-13 16:14 ` H. Peter Anvin
2026-05-12 5:20 ` [PATCH 02/19] raid6: turn the userspace test harness into a kunit test Christoph Hellwig
2026-05-12 5:20 ` [PATCH 03/19] raid6: remove __KERNEL__ ifdefs Christoph Hellwig
2026-05-12 5:20 ` [PATCH 04/19] raid6: move to lib/raid/ Christoph Hellwig
2026-05-12 5:20 ` [PATCH 05/19] raid6: remove unused defines in pq.h Christoph Hellwig
2026-05-12 5:20 ` [PATCH 06/19] raid6: remove raid6_get_zero_page Christoph Hellwig
2026-05-12 5:20 ` [PATCH 07/19] raid6: use named initializers for struct raid6_calls Christoph Hellwig
2026-05-12 5:20 ` [PATCH 08/19] raid6: improve the public interface Christoph Hellwig
2026-05-12 5:20 ` [PATCH 09/19] raid6: hide internals Christoph Hellwig
2026-05-12 5:20 ` [PATCH 10/19] raid6: rework the init helpers Christoph Hellwig
2026-05-12 5:20 ` [PATCH 11/19] raid6: use static_call for gen_syndrom and xor_syndrom Christoph Hellwig
2026-05-12 5:20 ` [PATCH 12/19] raid6: use static_call for raid6_recov_2data and raid6_recov_datap Christoph Hellwig
2026-05-12 5:20 ` [PATCH 13/19] raid6: update top of file comments Christoph Hellwig
2026-05-12 5:20 ` [PATCH 14/19] raid6_kunit: use KUNIT_CASE_PARAM Christoph Hellwig
2026-05-12 5:20 ` [PATCH 15/19] raid6_kunit: dynamically allocate data buffers using vmalloc Christoph Hellwig
2026-05-12 5:20 ` [PATCH 16/19] raid6_kunit: cleanup dataptr handling Christoph Hellwig
2026-05-12 5:20 ` [PATCH 17/19] raid6_kunit: randomize parameters and increase limits Christoph Hellwig
2026-05-12 5:20 ` [PATCH 18/19] " Christoph Hellwig
2026-05-12 5:20 ` [PATCH 19/19] raid6_kunit: randomize buffer alignment Christoph Hellwig
2026-05-12 9:50 ` Ard Biesheuvel [this message]
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