From mboxrd@z Thu Jan 1 00:00:00 1970 Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=gmail.com header.i=@gmail.com header.b="WVF7+3/a" Received: from mail-pf1-x42b.google.com (mail-pf1-x42b.google.com [IPv6:2607:f8b0:4864:20::42b]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 15994D63; Wed, 6 Dec 2023 18:45:53 -0800 (PST) Received: by mail-pf1-x42b.google.com with SMTP id d2e1a72fcca58-6cbd24d9557so138797b3a.1; Wed, 06 Dec 2023 18:45:53 -0800 (PST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20230601; t=1701917152; x=1702521952; darn=vger.kernel.org; h=in-reply-to:content-disposition:mime-version:references:message-id :subject:cc:to:from:date:from:to:cc:subject:date:message-id:reply-to; bh=8eVcl2KDPJ4smMer/60vC6K9DZX/lHwn01b8AXePVZA=; b=WVF7+3/atU2PCmAv7Vc085uceTWQR7gSFRI70XASg0Igv6Pws9M74XKlX2omvLcfy2 HJLk2LpLAGrJVPtkLZAGEDn7+4mQRMhLwDoL8hRUvHabaggDCuSObgDu/suYveG2OIER 1vyzVTNLt0eolXdtL7VE9bj4yDRnSuRjZGKj+ukiUs6H7Rv3c+5iaeNxYSGUEjD1MckD Ha1g43CEoLnzwcf9QF8e/rMD6nIIP6z8GUk0izGPdWO2x6dD2GMWJvl43DM4i4YM7AIH vxlg4+buEddR5DTJX4o/KKLGpB8bnJrZD08cndQKi7TJ5vihQJH5/UnlKVxiOgJrF3yY C2Ag== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20230601; t=1701917152; x=1702521952; h=in-reply-to:content-disposition:mime-version:references:message-id :subject:cc:to:from:date:x-gm-message-state:from:to:cc:subject:date :message-id:reply-to; bh=8eVcl2KDPJ4smMer/60vC6K9DZX/lHwn01b8AXePVZA=; b=qMBd+McGDdqViPJh8WCzoxGLHU46kBrJ45Y2BDUqjVuUIAn53HMCrxFD0TwVMw250H LZXlEP3BgxKYrlNQr+EuNhm0gMdbK/b5wZBGwv7HfzJAvCmi17KcuXPcQjDabu8NimKp gZAwcPRdWgF/8xCl0OegVkJXzBnDxAiXVhmz7BdEEh8bImd6Cw6JutNT6So5Wq//Gy9D k6MO+wZznDnU9B6EvRNSGQg/0SkJZnRfUXAB/j45ItsaiCDQnj8tTVugGT26dhLjGIzH /7ZmsRWonmHmycuohmPljDuVyXFupfMS3D72SVTQJTCZFjGWTa7zXBaTgL8XDTEbz33Y 62fA== X-Gm-Message-State: AOJu0YymiNViM6diiHMaDgyi+CLPJJPNzyBEAXuNPt/RQLn/gauvZaBV QlDFoBO79r12ivOvEIAclQs= X-Google-Smtp-Source: AGHT+IH09WqraumX9Od5MBcINZWd36Ny5g3Mp4llOuonrFbnrJCx/jGfRW8jMrVLGD/L56O9ZZS5Qw== X-Received: by 2002:a05:6a21:170f:b0:18f:9c4:d33c with SMTP id nv15-20020a056a21170f00b0018f09c4d33cmr4986434pzb.44.1701917152256; Wed, 06 Dec 2023 18:45:52 -0800 (PST) Received: from localhost.localdomain ([1.245.180.67]) by smtp.gmail.com with ESMTPSA id p24-20020a639518000000b005c676beba08sm177028pgd.65.2023.12.06.18.45.46 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Wed, 06 Dec 2023 18:45:51 -0800 (PST) Date: Thu, 7 Dec 2023 11:45:43 +0900 From: Hyeonggon Yoo <42.hyeyoo@gmail.com> To: Vlastimil Babka Cc: David Rientjes , Christoph Lameter , Pekka Enberg , Joonsoo Kim , Andrew Morton , Roman Gushchin , Andrey Ryabinin , Alexander Potapenko , Andrey Konovalov , Dmitry Vyukov , Vincenzo Frascino , Marco Elver , Johannes Weiner , Michal Hocko , Shakeel Butt , Muchun Song , Kees Cook , linux-mm@kvack.org, linux-kernel@vger.kernel.org, kasan-dev@googlegroups.com, cgroups@vger.kernel.org, linux-hardening@vger.kernel.org, Michal Hocko Subject: Re: [PATCH v2 00/21] remove the SLAB allocator Message-ID: References: <20231120-slab-remove-slab-v2-0-9c9c70177183@suse.cz> Precedence: bulk X-Mailing-List: cgroups@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20231120-slab-remove-slab-v2-0-9c9c70177183@suse.cz> On Mon, Nov 20, 2023 at 07:34:11PM +0100, Vlastimil Babka wrote: > Changes from v1: > - Added new Patch 01 to fix up kernel docs build (thanks Marco Elver) > - Additional changes to Kconfig user visible texts in Patch 02 (thanks Kees > Cook) > - Whitespace fixes and other fixups (thanks Kees) > > The SLAB allocator has been deprecated since 6.5 and nobody has objected > so far. As we agreed at LSF/MM, we should wait with the removal until > the next LTS kernel is released. This is now determined to be 6.6, and > we just missed 6.7, so now we can aim for 6.8 and start exposing the > removal to linux-next during the 6.7 cycle. If nothing substantial pops > up, will start including this in slab-next later this week. I've been testing this for a few weeks on my testing system, It passed a set of mm and slab tests on various SLUB configurations. For the series, feel free to add: Tested-by: Hyeonggon Yoo <42.hyeyoo@gmail.com> Thanks! > To keep the series reasonably sized and not pull in people from other > subsystems than mm and closely related ones, I didn't attempt to remove > every trace of unnecessary reference to dead config options in external > areas, nor in the defconfigs. Such cleanups can be sent to and handled > by respective maintainers after this is merged. > > Instead I have added some patches aimed to reap some immediate benefits > of the removal, mainly by not having to split some fastpath code between > slab_common.c and slub.c anymore. But that is also not an exhaustive > effort and I expect more cleanups and optimizations will follow later. > > Patch 09 updates CREDITS for the removed mm/slab.c. Please point out if > I missed someone not yet credited. > > Git version: https://git.kernel.org/vbabka/l/slab-remove-slab-v2r1