From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from smtp.kernel.org (aws-us-west-2-korg-mail-1.web.codeaurora.org [10.30.226.201]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id 5DC6C3AB29F; Mon, 13 Apr 2026 09:01:09 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=10.30.226.201 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1776070869; cv=none; b=sz8or/idaWNXS0ZdAI5vWWdJvimix8yif1vkPpD7F4ERQkjLY70T7L7FNW2KsTYCQIRJ7W0DrWqK1caziNzZvnfU3ZFU3XK0I1tkcXed+E076WiOp8fHPFGYOSdtPXrANXRSucDHV1fntpNaZ6t2yAYJxQYjCTupPDZLv5bZT2U= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1776070869; c=relaxed/simple; bh=NmWTXdFZa2PXaXxihxiBwP6/fcqhMPMR8Odd5UUj3qI=; h=Message-ID:Date:MIME-Version:Subject:To:Cc:References:From: In-Reply-To:Content-Type; b=pogm6Dfb4hUByDnqPXpZyHDFnFKFNSi6VrhjpQH4WlgmrMIYXn5GzHNty6rZNKOHDT8LBJgXxDBoz9+wMojxmdok9I81MwuPv2nz5QmkBVJtmrU0/8QcC2MEITRQaqBA2LjfdECNZjtleXn2UiDBu9yegOwk/YnV+/KkNFvalUU= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=kernel.org header.i=@kernel.org header.b=bfyW73rE; arc=none smtp.client-ip=10.30.226.201 Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=kernel.org header.i=@kernel.org header.b="bfyW73rE" Received: by smtp.kernel.org (Postfix) with ESMTPSA id 57513C116C6; Mon, 13 Apr 2026 09:00:59 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=k20201202; t=1776070868; bh=NmWTXdFZa2PXaXxihxiBwP6/fcqhMPMR8Odd5UUj3qI=; h=Date:Subject:To:Cc:References:From:In-Reply-To:From; b=bfyW73rEx6WunGZVvr1kdbuQhIZW0auQdr185ZFOdqezYfVI8EqIl4RV+jZMHErnf HHqywW91vp7CVLzZ8tl9LuEsJL2nKmijW0OQ98WRnNBsFsW1LYo4ZFpZLLA1RAeRqi fLF9xsDW37jcs+y2EAiBEgZnfjWYwDz/hvRsB2Ow2oVioAmoaeXLVkxbmWKx3ILDyy OFKArZB3La00uc7rhVgunFkOn3bZFgPE1fuUov3rdMuNp+wqIMsO2YWxMIl1vusQFL bBAU79v+8ddAl2Ytb2JX6K5ckn/0H32ur+wYUjKyGCCdFu1O+cEC54vJcUyB4ZJ+rF y0fFboG7dTA8g== Message-ID: <67c579d4-4e7e-4b3a-a2b9-7ba669664bdf@kernel.org> Date: Mon, 13 Apr 2026 11:00:57 +0200 Precedence: bulk X-Mailing-List: linux-s390@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: 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: Thomas Gleixner , LKML Cc: linux-mm@kvack.org, Arnd Bergmann , x86@kernel.org, Lu Baolu , iommu@lists.linux.dev, Michael Grzeschik , netdev@vger.kernel.org, linux-wireless@vger.kernel.org, Herbert Xu , linux-crypto@vger.kernel.org, David Woodhouse , Bernie Thompson , linux-fbdev@vger.kernel.org, Theodore Tso , linux-ext4@vger.kernel.org, Andrew Morton , Uladzislau Rezki , Marco Elver , Dmitry Vyukov , kasan-dev@googlegroups.com, Andrey Ryabinin , Thomas Sailer , linux-hams@vger.kernel.org, "Jason A. Donenfeld" , Richard Henderson , linux-alpha@vger.kernel.org, Russell King , linux-arm-kernel@lists.infradead.org, Catalin Marinas , Huacai Chen , loongarch@lists.linux.dev, Geert Uytterhoeven , linux-m68k@lists.linux-m68k.org, Dinh Nguyen , Jonas Bonn , linux-openrisc@vger.kernel.org, Helge Deller , linux-parisc@vger.kernel.org, Michael Ellerman , linuxppc-dev@lists.ozlabs.org, Paul Walmsley , linux-riscv@lists.infradead.org, Heiko Carstens , linux-s390@vger.kernel.org, "David S. Miller" , sparclinux@vger.kernel.org, "Harry Yoo (Oracle)" , Hao Li References: <20260410120044.031381086@kernel.org> <20260410120318.525653921@kernel.org> From: "Vlastimil Babka (SUSE)" In-Reply-To: <20260410120318.525653921@kernel.org> Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 7bit On 4/10/26 14:19, 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 LGTM. Acked-by: Vlastimil Babka (SUSE)