From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org Received: from bombadil.infradead.org (bombadil.infradead.org [198.137.202.133]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.lore.kernel.org (Postfix) with ESMTPS id D8B11C43219 for ; Thu, 24 Nov 2022 20:31:26 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=lists.infradead.org; s=bombadil.20210309; h=Sender: Content-Transfer-Encoding:Content-Type:List-Subscribe:List-Help:List-Post: List-Archive:List-Unsubscribe:List-Id:In-Reply-To:MIME-Version:References: Message-ID:Subject:Cc:To:From:Date:Reply-To:Content-ID:Content-Description: Resent-Date:Resent-From:Resent-Sender:Resent-To:Resent-Cc:Resent-Message-ID: List-Owner; bh=gNtz7u1J2+/BjEsd+wxg7aDyn2IOY0RX/DzXkRvDsFg=; b=r4pPjuqkpnWR83 p5PO1NNT04dTVoOgO5h8eW97Ab51fN9aSU6WU3bimEypYZKupsapIJtmRsaMpDWFyZGURMpip6La1 qBCuQNPLEaJNMGdadUgO4aqt0z8fLUI5cVN/0CsUgbKDMtVDFeMzAcqIWICyYiatg6cWY+1tuRXyy 6b0ZnvJzrtPf1yZ0VjhfNhFFMr2fjPSguHgK9sHbHzL6U49bx/XuqfUSUTHWtKVqhOw/ufVUvI9JT 9huOx7v4BVwDTrrkipKr7RBohX0j4LQbtZDkiE6Z7CfU8QtnxmtXcCNsHi1vo7sqvUb27CFRy5o25 JohApID+BzFmri6XXrTQ==; Received: from localhost ([::1] helo=bombadil.infradead.org) by bombadil.infradead.org with esmtp (Exim 4.94.2 #2 (Red Hat Linux)) id 1oyIsR-00BTT3-4J; Thu, 24 Nov 2022 20:31:19 +0000 Received: from ams.source.kernel.org ([145.40.68.75]) by bombadil.infradead.org with esmtps (Exim 4.94.2 #2 (Red Hat Linux)) id 1oyIsG-00BTPv-1O; Thu, 24 Nov 2022 20:31:10 +0000 Received: from smtp.kernel.org (relay.kernel.org [52.25.139.140]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by ams.source.kernel.org (Postfix) with ESMTPS id 40E4DB828DB; Thu, 24 Nov 2022 20:31:03 +0000 (UTC) Received: by smtp.kernel.org (Postfix) with ESMTPSA id 9BB9BC433D6; Thu, 24 Nov 2022 20:30:51 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=k20201202; t=1669321862; bh=VYogHO/QzC0Ie7JtQNRyLU+4odaED0lO+ZqrQ2anQ4g=; h=Date:From:To:Cc:Subject:References:In-Reply-To:From; b=B4JIUPPb4GNyqmaugd+1VesUVg/rY2YBuh9jPZSEa9LfSEQzH3zDygt0HPqdzet2M Dp4c/55O2yCFMpzlwelwJsAnq/cWVHvGVHOAbVO908xeu84LN7567KgsRaE4IVVlI4 irQCMsnXsSJ21jNJaw6RWjzOUpRxJ6RKhWjRfpd9wRYv71gwQVQAvT0UvpbAXv+eDr jBzcX+3BhUu0qt/DvQCSNER8QfDrEQGt+TJ9slcZjWNwkaVshc7is4iQ3Zq0vSzdZc hcrepLOFcnDEx3g9ybGBdkV9QmYuTZxJxy7F+stexs8bO96+DDGYQXJXkj+qDrkXGn djLsL9V97W7iw== Date: Thu, 24 Nov 2022 22:30:41 +0200 From: Mike Rapoport To: Vlastimil Babka Cc: Christoph Lameter , David Rientjes , Joonsoo Kim , Pekka Enberg , Hyeonggon Yoo <42.hyeyoo@gmail.com>, Roman Gushchin , Andrew Morton , Linus Torvalds , Matthew Wilcox , patches@lists.linux.dev, linux-mm@kvack.org, linux-kernel@vger.kernel.org, Aaro Koskinen , Arnd Bergmann , Christophe Leroy , Conor Dooley , Damien Le Moal , Geert Uytterhoeven , Janusz Krzysztofik , Jonas Bonn , Josh Triplett , Kees Cook , linux-arm-kernel@lists.infradead.org, linux-omap@vger.kernel.org, linux-riscv@lists.infradead.org, linux-sh@vger.kernel.org, openrisc@lists.librecores.org, Rich Felker , Russell King , Stafford Horne , Stefan Kristiansson , Tony Lindgren , Yoshinori Sato Subject: Re: [PATCH 00/12] Introduce CONFIG_SLUB_TINY and deprecate SLOB Message-ID: References: <20221121171202.22080-1-vbabka@suse.cz> MIME-Version: 1.0 Content-Disposition: inline In-Reply-To: <20221121171202.22080-1-vbabka@suse.cz> X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20221124_123108_420318_8B3EDDBA X-CRM114-Status: GOOD ( 21.43 ) X-BeenThere: linux-riscv@lists.infradead.org X-Mailman-Version: 2.1.34 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit Sender: "linux-riscv" Errors-To: linux-riscv-bounces+linux-riscv=archiver.kernel.org@lists.infradead.org On Mon, Nov 21, 2022 at 06:11:50PM +0100, Vlastimil Babka wrote: > Hi, > > this continues the discussion from [1]. Reasons to remove SLOB are > outlined there and no-one has objected so far. The last patch of this > series therefore deprecates CONFIG_SLOB and updates all the defconfigs > using CONFIG_SLOB=y in the tree. > > There is a k210 board with 8MB RAM where switching to SLUB caused issues > [2] and the lkp bot wasn't also happy about code bloat [3]. To address > both, this series introduces CONFIG_SLUB_TINY to perform some rather > low-hanging fruit modifications to SLUB to reduce its memory overhead. > This seems to have been successful at least in the k210 case [4]. I > consider this as an acceptable tradeoff for getting rid of SLOB. > > The series is also available in git: > https://git.kernel.org/pub/scm/linux/kernel/git/vbabka/linux.git/log/?h=slub-tiny-v1r2 > > [1] https://lore.kernel.org/all/b35c3f82-f67b-2103-7d82-7a7ba7521439@suse.cz/ > [2] https://lore.kernel.org/all/a5bba3ca-da19-293c-c01b-a28291533466@opensource.wdc.com/ > [3] https://lore.kernel.org/all/Y25E9cJbhDAKi1vd@99bb1221be19/ > [4] https://lore.kernel.org/all/6a1883c4-4c3f-545a-90e8-2cd805bcf4ae@opensource.wdc.com/ > > Vlastimil Babka (12): > mm, slab: ignore hardened usercopy parameters when disabled > mm, slub: add CONFIG_SLUB_TINY > mm, slub: disable SYSFS support with CONFIG_SLUB_TINY > mm, slub: retain no free slabs on partial list with CONFIG_SLUB_TINY > mm, slub: lower the default slub_max_order with CONFIG_SLUB_TINY > mm, slub: don't create kmalloc-rcl caches with CONFIG_SLUB_TINY > mm, slab: ignore SLAB_RECLAIM_ACCOUNT with CONFIG_SLUB_TINY > mm, slub: refactor free debug processing > mm, slub: split out allocations from pre/post hooks > mm, slub: remove percpu slabs with CONFIG_SLUB_TINY > mm, slub: don't aggressively inline with CONFIG_SLUB_TINY > mm, slob: rename CONFIG_SLOB to CONFIG_SLOB_DEPRECATED > > arch/arm/configs/clps711x_defconfig | 3 +- > arch/arm/configs/collie_defconfig | 3 +- > arch/arm/configs/multi_v4t_defconfig | 3 +- > arch/arm/configs/omap1_defconfig | 3 +- > arch/arm/configs/pxa_defconfig | 3 +- > arch/arm/configs/tct_hammer_defconfig | 3 +- > arch/arm/configs/xcep_defconfig | 3 +- > arch/openrisc/configs/or1ksim_defconfig | 3 +- > arch/openrisc/configs/simple_smp_defconfig | 3 +- > arch/riscv/configs/nommu_k210_defconfig | 3 +- > .../riscv/configs/nommu_k210_sdcard_defconfig | 3 +- > arch/riscv/configs/nommu_virt_defconfig | 3 +- > arch/sh/configs/rsk7201_defconfig | 3 +- > arch/sh/configs/rsk7203_defconfig | 3 +- > arch/sh/configs/se7206_defconfig | 3 +- > arch/sh/configs/shmin_defconfig | 3 +- > arch/sh/configs/shx3_defconfig | 3 +- > include/linux/slab.h | 8 + > include/linux/slub_def.h | 6 +- > kernel/configs/tiny.config | 5 +- > mm/Kconfig | 38 +- > mm/Kconfig.debug | 2 +- > mm/slab_common.c | 16 +- > mm/slub.c | 415 ++++++++++++------ > 24 files changed, 377 insertions(+), 164 deletions(-) For the series Acked-by: Mike Rapoport -- Sincerely yours, Mike. _______________________________________________ linux-riscv mailing list linux-riscv@lists.infradead.org http://lists.infradead.org/mailman/listinfo/linux-riscv