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 kanga.kvack.org (kanga.kvack.org [205.233.56.17]) by smtp.lore.kernel.org (Postfix) with ESMTP id 74ADAECAAD3 for ; Fri, 2 Sep 2022 00:24:53 +0000 (UTC) Received: by kanga.kvack.org (Postfix) id 18B5A8D0002; Thu, 1 Sep 2022 20:24:53 -0400 (EDT) Received: by kanga.kvack.org (Postfix, from userid 40) id 115258D0001; Thu, 1 Sep 2022 20:24:53 -0400 (EDT) X-Delivered-To: int-list-linux-mm@kvack.org Received: by kanga.kvack.org (Postfix, from userid 63042) id ED0538D0002; Thu, 1 Sep 2022 20:24:52 -0400 (EDT) X-Delivered-To: linux-mm@kvack.org Received: from relay.hostedemail.com (smtprelay0011.hostedemail.com [216.40.44.11]) by kanga.kvack.org (Postfix) with ESMTP id DAE038D0001 for ; Thu, 1 Sep 2022 20:24:52 -0400 (EDT) Received: from smtpin10.hostedemail.com (a10.router.float.18 [10.200.18.1]) by unirelay07.hostedemail.com (Postfix) with ESMTP id AD8AB1609F9 for ; Fri, 2 Sep 2022 00:24:52 +0000 (UTC) X-FDA: 79865250024.10.7528CC7 Received: from mail-yb1-f182.google.com (mail-yb1-f182.google.com [209.85.219.182]) by imf17.hostedemail.com (Postfix) with ESMTP id 68B8340046 for ; Fri, 2 Sep 2022 00:24:52 +0000 (UTC) Received: by mail-yb1-f182.google.com with SMTP id y197so1014688yby.13 for ; Thu, 01 Sep 2022 17:24:52 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=google.com; s=20210112; h=cc:to:subject:message-id:date:from:in-reply-to:references :mime-version:from:to:cc:subject:date; bh=/pPOPbPw8AnpH29BUzSqTrm5ZvDmaEgEyFxuBQlNiEg=; b=JFydOg9QoPX5QvCMFfTX+qzkxy7dX+yug3qLsycd8X5fIiKliNhG2sOdd7n2FZxg0x wlIQ0PSe2w+jF1eYJALDSn9VwIQg7e+fojjEXzmIOWtowrPcZ8vVaDgvGlc5viuLzbLq BuWwUYh3dJTjnuDVzKYwlUlnzQN1dlqhuf8e4UUJj0Gz3yVOw7ZhtZlACThcN+JogWbQ XLiaLX50zBOT8vT4sikyfQhvA5G9n7Ys1zkULvj3Bu6V7OPgO3m2SYNlgkEGLVgRXA6S YaT8WKnNiPs7HVTvCKPZfxYMJ9fk0eCfVfQjSQqADIJwkH1wr6+8aSYndPr9n1G1vqpS RvLg== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20210112; h=cc:to:subject:message-id:date:from:in-reply-to:references :mime-version:x-gm-message-state:from:to:cc:subject:date; bh=/pPOPbPw8AnpH29BUzSqTrm5ZvDmaEgEyFxuBQlNiEg=; b=oolgyk/50OY27Loemern36AwbO4c1s3/HWjGN2i8kXw+TbXWJVdFQDbDGdTyKddLQB Sl+vO2VOSEKuCmC9qKj85eTCpZwkMZ+0rcsbgNgMxYoNCK8wOLqnXmCjM7Ewcpj5idMl Ujp2414YArSbN3Sq3RFhY44SYUrdeJ4tF24QdDPEqt7xUZceTlsC4OIXxe7u9/UBRwII e3tH7hPMjpuN+w6hegkGAIGorgJABGojHKhibsr0q8WSMGqF2Ig0fbMsajWwCNRSCyca hCvBXCMnECwuSMRbGewzHmv/3i3Dj4syvsA2QUXIZY0fiKK2V9WpzH1TAkqyEZ40LNFY LgJA== X-Gm-Message-State: ACgBeo123aALI7fDJa2nskciL/FCVmFyQHwddsKUbPoP5wnL2NT7JvM4 V9w+OvfcR3gEbbIGvHOEfOgW2pQjjsaN3lJZC8146w== X-Google-Smtp-Source: AA6agR5/Ulv2F+QXTz0x1dcq0Ynnhj3rjvCeoD8VrxwV966KDu/pwW+2XwncQnNg3JY46QNFp+MHM1SP5XYuAvh7JKU= X-Received: by 2002:a05:6902:705:b0:695:b3b9:41bc with SMTP id k5-20020a056902070500b00695b3b941bcmr21283555ybt.426.1662078291363; Thu, 01 Sep 2022 17:24:51 -0700 (PDT) MIME-Version: 1.0 References: <20220830214919.53220-1-surenb@google.com> <20220830214919.53220-15-surenb@google.com> In-Reply-To: From: Suren Baghdasaryan Date: Thu, 1 Sep 2022 17:24:40 -0700 Message-ID: Subject: Re: [RFC PATCH 14/30] mm: prevent slabobj_ext allocations for slabobj_ext and kmem_cache objects To: Roman Gushchin Cc: Andrew Morton , Kent Overstreet , Michal Hocko , Vlastimil Babka , Johannes Weiner , Mel Gorman , Davidlohr Bueso , Matthew Wilcox , "Liam R. Howlett" , David Vernet , Peter Zijlstra , Juri Lelli , Laurent Dufour , Peter Xu , David Hildenbrand , Jens Axboe , mcgrof@kernel.org, masahiroy@kernel.org, nathan@kernel.org, changbin.du@intel.com, ytcoode@gmail.com, Vincent Guittot , Dietmar Eggemann , Steven Rostedt , Benjamin Segall , Daniel Bristot de Oliveira , Valentin Schneider , Christopher Lameter , Pekka Enberg , Joonsoo Kim , 42.hyeyoo@gmail.com, Alexander Potapenko , Marco Elver , Dmitry Vyukov , Shakeel Butt , Muchun Song , arnd@arndb.de, jbaron@akamai.com, David Rientjes , Minchan Kim , Kalesh Singh , kernel-team , linux-mm , iommu@lists.linux.dev, kasan-dev@googlegroups.com, io-uring@vger.kernel.org, linux-arch@vger.kernel.org, xen-devel@lists.xenproject.org, linux-bcache@vger.kernel.org, linux-modules@vger.kernel.org, LKML Content-Type: text/plain; charset="UTF-8" ARC-Message-Signature: i=1; a=rsa-sha256; c=relaxed/relaxed; d=hostedemail.com; s=arc-20220608; t=1662078292; h=from:from:sender:reply-to:subject:subject:date:date: message-id:message-id:to:to:cc:cc:mime-version:mime-version: content-type:content-type:content-transfer-encoding: in-reply-to:in-reply-to:references:references:dkim-signature; bh=/pPOPbPw8AnpH29BUzSqTrm5ZvDmaEgEyFxuBQlNiEg=; b=FsgauheB9uN5LC/emJuYurCYXjmCGiife0CSonYpIe2El+Q35fv5piaHtCGwG2Mee3EvPV h2w/m2GvTVuNq4456IKa45i97EMD8czBEHLHAU2rx+dDaWI4jMCp6dX767rxaL+fzH8nLJ rUCpU98PSjBjw80fD7J001/FjS0nnPk= ARC-Authentication-Results: i=1; imf17.hostedemail.com; dkim=pass header.d=google.com header.s=20210112 header.b=JFydOg9Q; spf=pass (imf17.hostedemail.com: domain of surenb@google.com designates 209.85.219.182 as permitted sender) smtp.mailfrom=surenb@google.com; dmarc=pass (policy=reject) header.from=google.com ARC-Seal: i=1; s=arc-20220608; d=hostedemail.com; t=1662078292; a=rsa-sha256; cv=none; b=5aHV6HsaHMX+9vDxpdO9CHevYTdLiJN7tv7i2NOZ9dNniIJ62RGwm0YBjb5pIBJXV+0ybI pKJpeAXC35ie4RpW3515VyLbYY3j6wIJgM3HQsBbD6gQRMzmptPQiR1ShWVmd6UuAzt/JZ a45zPyNfnTMn+za9dvrZ3f/mDXsv/lk= X-Stat-Signature: 9trhqogq1hcawrw58ix89gs5qgn4u7km X-Rspamd-Queue-Id: 68B8340046 Authentication-Results: imf17.hostedemail.com; dkim=pass header.d=google.com header.s=20210112 header.b=JFydOg9Q; spf=pass (imf17.hostedemail.com: domain of surenb@google.com designates 209.85.219.182 as permitted sender) smtp.mailfrom=surenb@google.com; dmarc=pass (policy=reject) header.from=google.com X-Rspamd-Server: rspam12 X-Rspam-User: X-HE-Tag: 1662078292-125897 X-Bogosity: Ham, tests=bogofilter, spamicity=0.000000, version=1.2.4 Sender: owner-linux-mm@kvack.org Precedence: bulk X-Loop: owner-majordomo@kvack.org List-ID: On Thu, Sep 1, 2022 at 4:41 PM Roman Gushchin wrote: > > On Tue, Aug 30, 2022 at 02:49:03PM -0700, Suren Baghdasaryan wrote: > > Use __GFP_NO_OBJ_EXT to prevent recursions when allocating slabobj_ext > > objects. Also prevent slabobj_ext allocations for kmem_cache objects. > > > > Signed-off-by: Suren Baghdasaryan > > Patches 12-14 look good to me. > It's probably to early to ack anything, but otherwise I'd ack them. Thank you for reviewing! > > Thanks!