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[209.85.220.65]) by mx.google.com with SMTPS id w82sor965852ybw.32.2019.01.30.09.52.25 for (Google Transport Security); Wed, 30 Jan 2019 09:52:25 -0800 (PST) Received-SPF: pass (google.com: domain of htejun@gmail.com designates 209.85.220.65 as permitted sender) client-ip=209.85.220.65; Authentication-Results: mx.google.com; dkim=pass header.i=@gmail.com header.s=20161025 header.b=dOHMTovA; spf=pass (google.com: domain of htejun@gmail.com designates 209.85.220.65 as permitted sender) smtp.mailfrom=htejun@gmail.com; dmarc=fail (p=NONE sp=NONE dis=NONE) header.from=kernel.org 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:user-agent; bh=nqKoowBhVNotvsktwsU7UZYX3ZVWVurI0845PhIUGvE=; b=dOHMTovASZbHyzLMlsR1yiUz4PRvp4/poseV7ogwNMHv3/be5mx/yokv2EEwmfpd7T FK/vMQcx4rU01+ILFFvVnmT19udKPJH0GBaWw3rzZ/59IhlxxwYzXEjCGPx8j4W0slD5 8mjqVJfR0n0h5oQFJ8Bj6WXWQd8hUGp1Pslh3smiu/WkeKL2wL8B4c5hxR30r+V9KW61 kO99vj4we+fQpeuEG3HgawSzwpSgLCBWejrCgd9CsRY1nniS3gTUf6b1YaunN5R0cS88 +9Gud7dyuD1S4gO7Z1GHVUnIdEahBP1feMONom808xwfS7aH2Rws+RibtI316+umNGgI NpIA== X-Google-Smtp-Source: ALg8bN628JXeckvdJGB6xWOnV6HxuTUUu+k4Hb31FKkRaVS5OQhGSk9ocEMHOqrY6prvD44HHm13xA== X-Received: by 2002:a5b:98b:: with SMTP id c11mr22918439ybq.141.1548870745339; Wed, 30 Jan 2019 09:52:25 -0800 (PST) Received: from localhost ([2620:10d:c091:200::7:e55d]) by smtp.gmail.com with ESMTPSA id s35sm3839343ywa.19.2019.01.30.09.52.24 (version=TLS1_2 cipher=ECDHE-RSA-AES128-GCM-SHA256 bits=128/128); Wed, 30 Jan 2019 09:52:24 -0800 (PST) Date: Wed, 30 Jan 2019 09:52:22 -0800 From: Tejun Heo To: Michal Hocko Cc: Johannes Weiner , Chris Down , Andrew Morton , Roman Gushchin , Dennis Zhou , linux-kernel@vger.kernel.org, cgroups@vger.kernel.org, linux-mm@kvack.org, kernel-team@fb.com Subject: Re: [PATCH 2/2] mm: Consider subtrees in memory.events Message-ID: <20190130175222.GA50184@devbig004.ftw2.facebook.com> References: <20190128145407.GP50184@devbig004.ftw2.facebook.com> <20190128151859.GO18811@dhcp22.suse.cz> <20190128154150.GQ50184@devbig004.ftw2.facebook.com> <20190128170526.GQ18811@dhcp22.suse.cz> <20190128174905.GU50184@devbig004.ftw2.facebook.com> <20190129144306.GO18811@dhcp22.suse.cz> <20190129145240.GX50184@devbig004.ftw2.facebook.com> <20190130165058.GA18811@dhcp22.suse.cz> <20190130170658.GY50184@devbig004.ftw2.facebook.com> <20190130174117.GC18811@dhcp22.suse.cz> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20190130174117.GC18811@dhcp22.suse.cz> User-Agent: Mutt/1.5.21 (2010-09-15) 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 Wed, Jan 30, 2019 at 06:41:17PM +0100, Michal Hocko wrote: > But we are discussing the file name effectively. I do not see a long > term maintenance burden. Confusing? Probably yes but that is were the Cost on user side. > documentation would be helpful. which is an a lot worse option with way higher total cost. If you aren't against making it a mount option (and you shouldn't), I think that'd be the best use of time for both of us. Thanks. -- tejun