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 X-Spam-Level: X-Spam-Status: No, score=-2.5 required=3.0 tests=MAILING_LIST_MULTI, SPF_HELO_NONE,SPF_PASS,USER_AGENT_SANE_1 autolearn=no autolearn_force=no version=3.4.0 Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id EC18FC3F68F for ; Thu, 9 Jan 2020 20:13:41 +0000 (UTC) Received: from kanga.kvack.org (kanga.kvack.org [205.233.56.17]) by mail.kernel.org (Postfix) with ESMTP id A9416206ED for ; Thu, 9 Jan 2020 20:13:41 +0000 (UTC) DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org A9416206ED Authentication-Results: mail.kernel.org; dmarc=fail (p=none dis=none) header.from=kernel.org Authentication-Results: mail.kernel.org; spf=pass smtp.mailfrom=owner-linux-mm@kvack.org Received: by kanga.kvack.org (Postfix) id 1F1838E0006; Thu, 9 Jan 2020 15:13:41 -0500 (EST) Received: by kanga.kvack.org (Postfix, from userid 40) id 1A1F98E0001; Thu, 9 Jan 2020 15:13:41 -0500 (EST) X-Delivered-To: int-list-linux-mm@kvack.org Received: by kanga.kvack.org (Postfix, from userid 63042) id 0B8B28E0006; Thu, 9 Jan 2020 15:13:41 -0500 (EST) X-Delivered-To: linux-mm@kvack.org Received: from forelay.hostedemail.com (smtprelay0142.hostedemail.com [216.40.44.142]) by kanga.kvack.org (Postfix) with ESMTP id EB7FB8E0001 for ; Thu, 9 Jan 2020 15:13:40 -0500 (EST) Received: from smtpin06.hostedemail.com (10.5.19.251.rfc1918.com [10.5.19.251]) by forelay02.hostedemail.com (Postfix) with SMTP id 912B04435 for ; Thu, 9 Jan 2020 20:13:40 +0000 (UTC) X-FDA: 76359196200.06.work38_775b0f033e60f X-HE-Tag: work38_775b0f033e60f X-Filterd-Recvd-Size: 3562 Received: from mail-wr1-f67.google.com (mail-wr1-f67.google.com [209.85.221.67]) by imf34.hostedemail.com (Postfix) with ESMTP for ; Thu, 9 Jan 2020 20:13:39 +0000 (UTC) Received: by mail-wr1-f67.google.com with SMTP id b6so8855726wrq.0 for ; Thu, 09 Jan 2020 12:13:39 -0800 (PST) X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20161025; h=x-gm-message-state:date:from:to:cc:subject:message-id:references :mime-version:content-disposition:in-reply-to:user-agent; bh=0bTCYhmwhUsF2jDWQOxPlGiD1ry+I9YZ+HPlDbTNi+w=; b=R+BfaRnt56QrY+vJQLPBYDnGu06heB5A8Hb/aGvbBslhWfazNxYb587sKJJHHWYCJi Z9ekjeaZUxniDVEfKKGiUJnwlNdLaW503dojtpcymZoRl647jFwLYIc3U+K0vBUOrxH9 OwJVKpl0FSKaD/vdI3opOehpDpalZqQhe1P0ZnDeyoFJ5XOKNe+CvVrP+JsFugsSpe/0 CIwDzfnByzqdDGeB5mAnHYw2ktZVx0OuPlgxISshV97fZuv1l7jGtH6P5uyn52IhAE5H vruc7tXSijscOwmmBIKYlE1WDYSw50uKRwpYTVZQZH0FBy5V97mgUF+tQKTfo2ArP4bk IXiw== X-Gm-Message-State: APjAAAXlvbdKvX1Ju9XGmz7bBbbm8H3pcbgm+4liDr+E7VccfCYBuPAX ip+zbCzeZD+NQtjuG3BnnnY= X-Google-Smtp-Source: APXvYqxdYEb3O33FLr38TIL6vlIiDaBklOPc8zdsq0e/RR8mTCav5wDEsB880JQODAHjhPLy0eXsbA== X-Received: by 2002:adf:fe4d:: with SMTP id m13mr11546015wrs.179.1578600818725; Thu, 09 Jan 2020 12:13:38 -0800 (PST) Received: from localhost (ip-37-188-146-105.eurotel.cz. [37.188.146.105]) by smtp.gmail.com with ESMTPSA id x11sm3999313wmg.46.2020.01.09.12.13.37 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Thu, 09 Jan 2020 12:13:37 -0800 (PST) Date: Thu, 9 Jan 2020 21:13:36 +0100 From: Michal Hocko To: Andrew Morton Cc: Christopher Lameter , LKML , linux-mm@kvack.org Subject: Re: SLUB: purpose of sysfs events on cache creation/removal Message-ID: <20200109201336.GX4951@dhcp22.suse.cz> References: <20191127174317.GD26807@dhcp22.suse.cz> <20191204132812.GF25242@dhcp22.suse.cz> <20191204153225.GM25242@dhcp22.suse.cz> <20191204173224.GN25242@dhcp22.suse.cz> <20200106115733.GH12699@dhcp22.suse.cz> <20200109145236.GS4951@dhcp22.suse.cz> <20200109114415.cf01bd3ad30c5c4aec981653@linux-foundation.org> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20200109114415.cf01bd3ad30c5c4aec981653@linux-foundation.org> User-Agent: Mutt/1.12.2 (2019-09-21) 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 09-01-20 11:44:15, Andrew Morton wrote: > On Thu, 9 Jan 2020 15:52:36 +0100 Michal Hocko wrote: > > > On Mon 06-01-20 15:51:26, Cristopher Lameter wrote: > > > On Mon, 6 Jan 2020, Michal Hocko wrote: > > > > > > > On Wed 04-12-19 18:32:24, Michal Hocko wrote: > > > > > [Cc akpm - the email thread starts > > > > > http://lkml.kernel.org/r/20191126121901.GE20912@dhcp22.suse.cz] > > > > > > > > ping. > > > > > > There does not seem to be much of an interest in the patch? > > > > It seems it has just fallen through cracks. > > I looked at it - there wasn't really any compelling followup. The primary motivation is the pointless udev event for each created cache. There are not that many on the global case but memcg just adds up. -- Michal Hocko SUSE Labs