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b=W1c4yYbXInfelp0eUQAv9gO8+XT0Sbrv81Gm0Adb5EvlP79aa60vW1qyaRs6863hq ywlFwnEXs2N+Csj1t8AT44QeeKBJG/F49Idi2q4rc2RmYot0SX7HMiTlvtWvn/yDH+ 7trrgahjvxasFZ1G1mSZHuMwpN/FLXdUKO5A3DE4xduSAFmVqypbzmuyI1rt6S5Skg mnVOocE28OqrI3sV0A1xJA4AMsFJUmV+SiC9+WzESG+evlqCHSH4Q/iOf94U+BkWPk AcZh4PrKZrOg/knioNZ+bkeabHdk27YLf4Gl2MWAVIr2/8lUMYASANuBHtyTuYAsV9 CyYJUfeUbdazw== Message-ID: Date: Mon, 13 Apr 2026 15:45:59 +0200 MIME-Version: 1.0 User-Agent: Mozilla Thunderbird Subject: Re: [patch 14/38] slub: Use prandom instead of get_cycles() Content-Language: en-US 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 References: <20260413210252672ZfdcegJLJtyvlYdFAUBlr@zte.com.cn> From: "Vlastimil Babka (SUSE)" In-Reply-To: <20260413210252672ZfdcegJLJtyvlYdFAUBlr@zte.com.cn> Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 7bit X-Rspam-User: X-Stat-Signature: ib3tec3ns7i9ye54qxxipiaisyenr4b1 X-Rspamd-Queue-Id: 1CA03C0010 X-Rspamd-Server: rspam09 X-HE-Tag: 1776087972-467730 X-HE-Meta: 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 RrgOLIOH QBZPmE7KlzEm14Ee/JP7/rZdqbp9qdtZRf1/H/VGKUlOGRbj1viynZqiKzJz8/hE6bheNuGXjArdyaOuEx/ODPdgyP891py23BlELH7NS1oJWlzW7PZhHgbzCUh2u0sNIPYYIflPjbEOH3gO2JWpi2LY2WVCDTb2fjXDyeMjLlwTFlNTpKrqoDVe+GAtR7uf/XKVwOc3yOlkS4SK5f2gWPf/59yaSi7tZeO5Gb8Mxaf4gbgmySaLb8Gt9ovt2zQGk5l8F7u/t5KtNIjjbKVvz9CSnmKfo1FcjxYpd5PNkdIWB1/L1JtF0tXe8clRGtRoaQ+p8g70zKdxPCk1KJFXVr0SQc/PMZ8lOOxFVpaW+BsmJ9q2wmFci8K2WcTaTBE5clSRHrTiyND+FmUAerXHuf2wzfone8ZwYYyCxwWnoU0CIKHrtOVydHPDQBnnwDZ8rNrLROEjqtbweljBAOoem2Yhxx/yLXLcQrtMbDhNSASKsrGwUHRRHJFjQoWR0zLL8E7dOPC8VCxeUP3Q= Sender: owner-linux-mm@kvack.org Precedence: bulk X-Loop: owner-majordomo@kvack.org List-ID: List-Subscribe: List-Unsubscribe: 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 >> > Cc: Vlastimil Babka >> > Cc: linux-mm@kvack.org >> > --- >> >> Acked-by: Harry Yoo (Oracle) >> >> 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.