From: "Vlastimil Babka (SUSE)" <vbabka@kernel.org>
To: hu.shengming@zte.com.cn, harry@kernel.org
Cc: tglx@kernel.org, linux-kernel@vger.kernel.org,
linux-mm@kvack.org, arnd@arndb.de, x86@kernel.org,
baolu.lu@linux.intel.com, iommu@lists.linux.dev,
m.grzeschik@pengutronix.de, netdev@vger.kernel.org,
linux-wireless@vger.kernel.org, herbert@gondor.apana.org.au,
linux-crypto@vger.kernel.org, dwmw2@infradead.org,
bernie@plugable.com, linux-fbdev@vger.kernel.org, tytso@mit.edu,
linux-ext4@vger.kernel.org, akpm@linux-foundation.org,
urezki@gmail.com, elver@google.com, dvyukov@google.com,
kasan-dev@googlegroups.com, ryabinin.a.a@gmail.com,
t.sailer@alumni.ethz.ch, linux-hams@vger.kernel.org,
Jason@zx2c4.com, richard.henderson@linaro.org,
linux-alpha@vger.kernel.org, linux@armlinux.org.uk,
linux-arm-kernel@lists.infradead.org, catalin.marinas@arm.com,
chenhuacai@kernel.org, loongarch@lists.linux.dev,
geert@linux-m68k.org, linux-m68k@lists.linux-m68k.org,
dinguyen@kernel.org, jonas@southpole.se,
linux-openrisc@vger.kernel.org, deller@gmx.de,
linux-parisc@vger.kernel.org, mpe@ellerman.id.au,
linuxppc-dev@lists.ozlabs.org, pjw@kernel.org,
linux-riscv@lists.infradead.org, hca@linux.ibm.com,
linux-s390@vger.kernel.org, davem@davemloft.net,
sparclinux@vger.kernel.org, hao.li@linux.dev, cl@gentwo.org,
rientjes@google.com, roman.gushchin@linux.dev
Subject: Re: [patch 14/38] slub: Use prandom instead of get_cycles()
Date: Mon, 13 Apr 2026 15:45:59 +0200 [thread overview]
Message-ID: <ed8cf7e9-4271-48ab-a410-d7c0e2832020@kernel.org> (raw)
In-Reply-To: <20260413210252672ZfdcegJLJtyvlYdFAUBlr@zte.com.cn>
On 4/13/26 15:02, hu.shengming@zte.com.cn wrote:
> Harry wrote:
>> [Resending after fixing broken email headers]
>>
>> On Fri, Apr 10, 2026 at 02:19:37PM +0200, Thomas Gleixner wrote:
>> > The decision whether to scan remote nodes is based on a 'random' number
>> > retrieved via get_cycles(). get_cycles() is about to be removed.
>> >
>> > There is already prandom state in the code, so use that instead.
>> >
>> > Signed-off-by: Thomas Gleixner <tglx@kernel.org>
>> > Cc: Vlastimil Babka <vbabka@kernel.org>
>> > Cc: linux-mm@kvack.org
>> > ---
>>
>> Acked-by: Harry Yoo (Oracle) <harry@kernel.org>
>>
>> Is this for this merge window?
I'd say it's not intended for 7.1 as it's not in -next and v1 was posted
just before the merge window.
>> This may conflict with upcoming changes on freelist shuffling [1]
>> (not queued for slab/for-next yet though), but it should be easy to
>> resolve.
Indeed, it's a simple conflict.
>
> Hi Harry,
>
> Would you like me to wait for this patch to land linux-next and then
> rebase and send v6 on top?
Just send it now based same as previously so we can finish the reviews, and
we'll deal with it after rc1.
next prev parent reply other threads:[~2026-04-13 13:46 UTC|newest]
Thread overview: 58+ messages / expand[flat|nested] mbox.gz Atom feed top
2026-04-10 12:18 [patch 00/38] treewide: Cleanup LATCH, CLOCK_TICK_RATE and get_cycles() [ab]use Thomas Gleixner
2026-04-10 12:18 ` [patch 01/38] percpu: Sanitize __percpu_qual include hell Thomas Gleixner
2026-04-10 12:18 ` [patch 02/38] x86: Cleanup include recursion hell Thomas Gleixner
2026-04-10 20:55 ` [patch V1.1 " Thomas Gleixner
2026-04-10 12:18 ` [patch 03/38] x86/apm: Remove last LATCH usage Thomas Gleixner
2026-04-10 12:18 ` [patch 04/38] x86: Use PIT_TICK_RATE instead of CLOCK_TICK_RATE Thomas Gleixner
2026-04-10 12:18 ` [patch 05/38] treewide: Remove CLOCK_TICK_RATE Thomas Gleixner
2026-04-10 12:18 ` [patch 06/38] calibrate: Rework delay timer calibration Thomas Gleixner
2026-04-10 12:19 ` [patch 07/38] treewide: Consolidate cycles_t Thomas Gleixner
2026-04-13 9:15 ` Ojaswin Mujoo
2026-04-10 12:19 ` [patch 08/38] x86/tsc: Use rdtsc() instead of get_cycles() Thomas Gleixner
2026-04-10 12:19 ` [patch 09/38] iommu/vt-d: Use sched_clock() " Thomas Gleixner
2026-04-10 13:45 ` Baolu Lu
2026-04-10 15:14 ` Thomas Gleixner
2026-04-10 12:19 ` [patch 10/38] arcnet: Remove function timing code Thomas Gleixner
2026-04-13 15:29 ` David Woodhouse
2026-04-10 12:19 ` [patch 11/38] misc: sgi-gru: Remove get_cycles() [ab]use Thomas Gleixner
2026-04-10 20:56 ` [patch V1.1 " Thomas Gleixner
2026-04-10 12:19 ` [patch 12/38] wifi: wil6210: Replace get_cyles() usage Thomas Gleixner
2026-04-10 12:19 ` [patch 13/38] crypto: tcrypt: Replace get_cycles() with ktime_get() Thomas Gleixner
2026-04-10 12:19 ` [patch 14/38] slub: Use prandom instead of get_cycles() Thomas Gleixner
2026-04-13 9:00 ` Vlastimil Babka (SUSE)
2026-04-13 9:07 ` Harry Yoo (Oracle)
2026-04-13 13:02 ` hu.shengming
2026-04-13 13:45 ` Vlastimil Babka (SUSE) [this message]
2026-04-10 12:19 ` [patch 15/38] ptp: ptp_vmclock: Replace get_cycles() usage Thomas Gleixner
2026-04-13 15:33 ` David Woodhouse
2026-04-10 12:19 ` [patch 16/38] fbdev: udlfb: Replace get_cycles() with ktime_get() Thomas Gleixner
2026-04-10 12:19 ` [patch 17/38] ext4: Replace get_cycles() usage " Thomas Gleixner
2026-04-13 14:46 ` Arnd Bergmann
2026-04-10 12:19 ` [patch 18/38] lib/tests: Replace get_cycles() " Thomas Gleixner
2026-04-10 12:20 ` [patch 19/38] kcsan: Replace get_cycles() usage Thomas Gleixner
2026-04-10 13:39 ` Marco Elver
2026-04-10 12:20 ` [patch 20/38] kasan: sw_tags: Replace get_cycles() by random_get_entropy() Thomas Gleixner
2026-04-10 12:20 ` [patch 21/38] hamradio: baycom_epp: Remove BAYCOM_DEBUG Thomas Gleixner
2026-04-10 12:20 ` [patch 22/38] random: Provide CONFIG_ARCH_HAS_RANDOM_ENTROPY Thomas Gleixner
2026-04-10 12:20 ` [patch 23/38] alpha: Select ARCH_HAS_RANDOM_ENTROPY Thomas Gleixner
2026-04-12 13:22 ` Magnus Lindholm
2026-04-10 12:20 ` [patch 24/38] ARM: " Thomas Gleixner
2026-04-10 12:20 ` [patch 25/38] arm64: " Thomas Gleixner
2026-04-10 12:20 ` [patch 26/38] loongarch: " Thomas Gleixner
2026-04-10 12:20 ` [patch 27/38] m68k: " Thomas Gleixner
2026-04-10 15:31 ` Daniel Palmer
2026-04-10 12:20 ` [patch 28/38] mips: " Thomas Gleixner
2026-04-13 5:47 ` Maciej W. Rozycki
2026-04-10 12:20 ` [patch 29/38] nios2: " Thomas Gleixner
2026-04-10 12:20 ` [patch 30/38] openrisc: " Thomas Gleixner
2026-04-12 8:56 ` Stafford Horne
2026-04-10 12:21 ` [patch 31/38] parisc: " Thomas Gleixner
2026-04-10 12:21 ` [patch 32/38] powerpc/spufs: Use mftb() directly Thomas Gleixner
2026-04-13 14:43 ` Arnd Bergmann
2026-04-10 12:21 ` [patch 33/38] powerpc: Select ARCH_HAS_RANDOM_ENTROPY Thomas Gleixner
2026-04-10 12:21 ` [patch 34/38] riscv: " Thomas Gleixner
2026-04-10 12:21 ` [patch 35/38] s390: " Thomas Gleixner
2026-04-10 12:21 ` [patch 36/38] sparc: Select ARCH_HAS_RANDOM_ENTROPY for SPARC64 Thomas Gleixner
2026-04-10 12:21 ` [patch 37/38] x86: Select ARCH_HAS_RANDOM_ENTROPY Thomas Gleixner
2026-04-10 12:21 ` [patch 38/38] treewide: Remove asm/timex.h includes from generic code Thomas Gleixner
2026-04-13 14:45 ` Arnd Bergmann
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=ed8cf7e9-4271-48ab-a410-d7c0e2832020@kernel.org \
--to=vbabka@kernel.org \
--cc=Jason@zx2c4.com \
--cc=akpm@linux-foundation.org \
--cc=arnd@arndb.de \
--cc=baolu.lu@linux.intel.com \
--cc=bernie@plugable.com \
--cc=catalin.marinas@arm.com \
--cc=chenhuacai@kernel.org \
--cc=cl@gentwo.org \
--cc=davem@davemloft.net \
--cc=deller@gmx.de \
--cc=dinguyen@kernel.org \
--cc=dvyukov@google.com \
--cc=dwmw2@infradead.org \
--cc=elver@google.com \
--cc=geert@linux-m68k.org \
--cc=hao.li@linux.dev \
--cc=harry@kernel.org \
--cc=hca@linux.ibm.com \
--cc=herbert@gondor.apana.org.au \
--cc=hu.shengming@zte.com.cn \
--cc=iommu@lists.linux.dev \
--cc=jonas@southpole.se \
--cc=kasan-dev@googlegroups.com \
--cc=linux-alpha@vger.kernel.org \
--cc=linux-arm-kernel@lists.infradead.org \
--cc=linux-crypto@vger.kernel.org \
--cc=linux-ext4@vger.kernel.org \
--cc=linux-fbdev@vger.kernel.org \
--cc=linux-hams@vger.kernel.org \
--cc=linux-kernel@vger.kernel.org \
--cc=linux-m68k@lists.linux-m68k.org \
--cc=linux-mm@kvack.org \
--cc=linux-openrisc@vger.kernel.org \
--cc=linux-parisc@vger.kernel.org \
--cc=linux-riscv@lists.infradead.org \
--cc=linux-s390@vger.kernel.org \
--cc=linux-wireless@vger.kernel.org \
--cc=linux@armlinux.org.uk \
--cc=linuxppc-dev@lists.ozlabs.org \
--cc=loongarch@lists.linux.dev \
--cc=m.grzeschik@pengutronix.de \
--cc=mpe@ellerman.id.au \
--cc=netdev@vger.kernel.org \
--cc=pjw@kernel.org \
--cc=richard.henderson@linaro.org \
--cc=rientjes@google.com \
--cc=roman.gushchin@linux.dev \
--cc=ryabinin.a.a@gmail.com \
--cc=sparclinux@vger.kernel.org \
--cc=t.sailer@alumni.ethz.ch \
--cc=tglx@kernel.org \
--cc=tytso@mit.edu \
--cc=urezki@gmail.com \
--cc=x86@kernel.org \
/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