public inbox for linux-btrfs@vger.kernel.org
 help / color / mirror / Atom feed
From: "Jason A. Donenfeld" <Jason@zx2c4.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>,
	Magnus Lindholm <linmag7@gmail.com>,
	Russell King <linux@armlinux.org.uk>,
	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>,
	"David S. Miller" <davem@davemloft.net>,
	Andreas Larsson <andreas@gaisler.com>,
	Richard Weinberger <richard@nod.at>,
	Anton Ivanov <anton.ivanov@cambridgegreys.com>,
	Johannes Berg <johannes@sipsolutions.net>,
	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>, Theodore Ts'o <tytso@mit.edu>,
	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: [PATCH 26/27] random: factor out a __limit_random_u32_below helper
Date: Thu, 12 Mar 2026 14:46:39 +0100	[thread overview]
Message-ID: <abLDvwa7c3OXm_e2@zx2c4.com> (raw)
In-Reply-To: <20260311070416.972667-27-hch@lst.de>

On Wed, Mar 11, 2026 at 08:03:58AM +0100, Christoph Hellwig wrote:
> Factor out the guts of __get_random_u32_below into a new helper,
> so that callers with their own prng state can reuse this code.

What Eric said. random.c is not "some library code" meant to be pulled
apart like this. If you think there are some good general purpose
arithmetic functions, by all means develop shared infrastructure in the
right place. But I think for this super simple/trivial _below function,
you can probably just place it additionally where you're using it,
without needing to touch random.c.

  parent reply	other threads:[~2026-03-12 13:46 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
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 [this message]
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

Reply instructions:

You may reply publicly to this message via plain-text email
using any one of the following methods:

* Save the following mbox file, import it into your mail client,
  and reply-to-all from there: mbox

  Avoid top-posting and favor interleaved quoting:
  https://en.wikipedia.org/wiki/Posting_style#Interleaved_style

* Reply using the --to, --cc, and --in-reply-to
  switches of git-send-email(1):

  git send-email \
    --in-reply-to=abLDvwa7c3OXm_e2@zx2c4.com \
    --to=jason@zx2c4.com \
    --cc=agordeev@linux.ibm.com \
    --cc=akpm@linux-foundation.org \
    --cc=alex@ghiti.fr \
    --cc=andreas@gaisler.com \
    --cc=anton.ivanov@cambridgegreys.com \
    --cc=aou@eecs.berkeley.edu \
    --cc=arnd@arndb.de \
    --cc=borntraeger@linux.ibm.com \
    --cc=bp@alien8.de \
    --cc=catalin.marinas@arm.com \
    --cc=chenhuacai@kernel.org \
    --cc=chleroy@kernel.org \
    --cc=clm@fb.com \
    --cc=dan.j.williams@intel.com \
    --cc=dave.hansen@linux.intel.com \
    --cc=davem@davemloft.net \
    --cc=dsterba@suse.com \
    --cc=gor@linux.ibm.com \
    --cc=hca@linux.ibm.com \
    --cc=hch@lst.de \
    --cc=herbert@gondor.apana.org.au \
    --cc=hpa@zytor.com \
    --cc=johannes@sipsolutions.net \
    --cc=kernel@xen0n.name \
    --cc=linan122@huawei.com \
    --cc=linmag7@gmail.com \
    --cc=linux-alpha@vger.kernel.org \
    --cc=linux-arch@vger.kernel.org \
    --cc=linux-arm-kernel@lists.infradead.org \
    --cc=linux-btrfs@vger.kernel.org \
    --cc=linux-crypto@vger.kernel.org \
    --cc=linux-kernel@vger.kernel.org \
    --cc=linux-raid@vger.kernel.org \
    --cc=linux-riscv@lists.infradead.org \
    --cc=linux-s390@vger.kernel.org \
    --cc=linux-um@lists.infradead.org \
    --cc=linux@armlinux.org.uk \
    --cc=linuxppc-dev@lists.ozlabs.org \
    --cc=loongarch@lists.linux.dev \
    --cc=maddy@linux.ibm.com \
    --cc=mattst88@gmail.com \
    --cc=mingo@redhat.com \
    --cc=mpe@ellerman.id.au \
    --cc=npiggin@gmail.com \
    --cc=palmer@dabbelt.com \
    --cc=pjw@kernel.org \
    --cc=richard.henderson@linaro.org \
    --cc=richard@nod.at \
    --cc=song@kernel.org \
    --cc=sparclinux@vger.kernel.org \
    --cc=svens@linux.ibm.com \
    --cc=tglx@kernel.org \
    --cc=tytso@mit.edu \
    --cc=will@kernel.org \
    --cc=x86@kernel.org \
    --cc=yukuai@fnnas.com \
    /path/to/YOUR_REPLY

  https://kernel.org/pub/software/scm/git/docs/git-send-email.html

* If your mail client supports setting the In-Reply-To header
  via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line before the message body.
This is a public inbox, see mirroring instructions
for how to clone and mirror all data and code used for this inbox