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[23.128.96.18]) by mx.google.com with ESMTP id d11si173849ilg.24.2021.07.28.08.40.07; Wed, 28 Jul 2021 08:40:18 -0700 (PDT) Received-SPF: pass (google.com: domain of linux-kernel-owner@vger.kernel.org designates 23.128.96.18 as permitted sender) client-ip=23.128.96.18; Authentication-Results: mx.google.com; dkim=pass header.i=@gmail.com header.s=20161025 header.b=eCuSx67r; spf=pass (google.com: domain of linux-kernel-owner@vger.kernel.org designates 23.128.96.18 as permitted sender) smtp.mailfrom=linux-kernel-owner@vger.kernel.org; dmarc=pass (p=NONE sp=NONE dis=NONE) header.from=kernel.org Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S235688AbhG1Pis (ORCPT + 99 others); Wed, 28 Jul 2021 11:38:48 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:55216 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S229880AbhG1Pis (ORCPT ); Wed, 28 Jul 2021 11:38:48 -0400 Received: from mail-pj1-x1034.google.com (mail-pj1-x1034.google.com [IPv6:2607:f8b0:4864:20::1034]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 7A3AFC061757; Wed, 28 Jul 2021 08:38:45 -0700 (PDT) Received: by mail-pj1-x1034.google.com with SMTP id a4-20020a17090aa504b0290176a0d2b67aso10666963pjq.2; Wed, 28 Jul 2021 08:38:45 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20161025; h=sender:date:from:to:cc:subject:message-id:references:mime-version :content-disposition:in-reply-to; bh=DHb1viiq/M1erLr2X07zcQ77mhbJoJfUhPFzGDRbbgk=; b=eCuSx67rfqyMOyriSQb1ffa/WuN7WKoJYkCifLb4icEiL3Na9lr1lgBva/EV3IsW1j SC9BTzDRtxiJrFSJabc9C2jIqi0Mtyl42GPLBULan6SY56jK364YbFbOJwS4pR5ae3Ts azWrICO+Ts7LoJwkmgYNcXI6IS6OqjD5CA9ohdhhq3ob/kql5wHVkXBi5alr5MqT4tg+ NWm0++pZ/XJbL04cDL4YZR6SS/6TqRu82e98h8+C6Q9DdnxJNxiK73ypXVpVYAmrCnko GgOoPUP/0ncWvxHFncNrSuribzkOrjsWtplELgnujfG+9iWLyn1es1Q6WMNsem+f7lWO X0tQ== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20161025; h=x-gm-message-state:sender:date:from:to:cc:subject:message-id :references:mime-version:content-disposition:in-reply-to; bh=DHb1viiq/M1erLr2X07zcQ77mhbJoJfUhPFzGDRbbgk=; b=UJ38o5uygs222FsvRi0w229j2dnnRhdQUb3o4CkCL5tyo/9prtS4qWIg87zV7D/ZRy rRfBrMLesNqxvjl8Jz74mGNLP3X3OJJJ6ATzx2HuuQsTZLtElpvsVQRv3F4NehKVFQ2Z T6MmAduVWcu0eR6c1ukfMXOhaOdqeMvSyiNaI64ewM3muDL9s8uXw4nVgCEWA820R2nL ZJ/VvmrASN63N3ivXX+C+AU3Kf5LDjSmYUMKadfFDKT5cgbJ93KVReCI837BbmON0WRE PXyz+lqGYQtUArdlAbkNmGcpVAqM3DdF6NchmG/p4y5EV3B9zOAhQMBqZJJZlkMyVRUH kmsw== X-Gm-Message-State: AOAM5320GXcoj2YKr3R014bt/gtsUHv2wfROxTdgnOeeUcXo3+9DHbdf rK2b7Qcg7OvglzPYYw9iIxE= X-Received: by 2002:a63:6f8c:: with SMTP id k134mr387286pgc.35.1627486724843; Wed, 28 Jul 2021 08:38:44 -0700 (PDT) Received: from localhost ([2620:10d:c090:400::5:3784]) by smtp.gmail.com with ESMTPSA id f4sm82823pgi.68.2021.07.28.08.38.44 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Wed, 28 Jul 2021 08:38:44 -0700 (PDT) Sender: Tejun Heo Date: Wed, 28 Jul 2021 05:38:39 -1000 From: Tejun Heo To: brookxu Cc: viro@zeniv.linux.org.uk, lizefan.x@bytedance.com, hannes@cmpxchg.org, linux-kernel@vger.kernel.org, linux-fsdevel@vger.kernel.org, cgroups@vger.kernel.org Subject: Re: [RFC PATCH v2 1/3] misc_cgroup: add support for nofile limit Message-ID: References: <3fd94563b4949ffbfe10e7d18ac1df3852b103a6.1626966339.git.brookxu@tencent.com> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Hello, On Wed, Jul 28, 2021 at 05:47:05PM +0800, brookxu wrote: > But considering stability issues(k8s), There are still many production environments use > cgroup v1 without kmem. If kmem is enabled, due to the relatively large granularity > of kmem, this feature can also prevent the abnormal open behavior from making the entire > container unavailable? but I currently do not have this scenario. Now we are repeating the same points. This simply doesn't justify adding a user-facing feature that we have to maintain for eternity. Thanks. -- tejun