From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1751266AbeAVXXT convert rfc822-to-8bit (ORCPT ); Mon, 22 Jan 2018 18:23:19 -0500 Received: from mail.linuxfoundation.org ([140.211.169.12]:60194 "EHLO mail.linuxfoundation.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1751049AbeAVXXR (ORCPT ); Mon, 22 Jan 2018 18:23:17 -0500 Date: Mon, 22 Jan 2018 15:23:15 -0800 From: Andrew Morton To: Andrey Grodzovsky Cc: , , , , Subject: Re: [RFC] Per file OOM badness Message-Id: <20180122152315.749d88f3c91ffce4d70ac450@linux-foundation.org> In-Reply-To: <1516294072-17841-1-git-send-email-andrey.grodzovsky@amd.com> References: <1516294072-17841-1-git-send-email-andrey.grodzovsky@amd.com> X-Mailer: Sylpheed 3.4.1 (GTK+ 2.24.23; x86_64-pc-linux-gnu) Mime-Version: 1.0 Content-Type: text/plain; charset=ISO-8859-1 Content-Transfer-Encoding: 8BIT Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org On Thu, 18 Jan 2018 11:47:48 -0500 Andrey Grodzovsky wrote: > Hi, this series is a revised version of an RFC sent by Christian König > a few years ago. The original RFC can be found at > https://lists.freedesktop.org/archives/dri-devel/2015-September/089778.html > > This is the same idea and I've just adressed his concern from the original RFC > and switched to a callback into file_ops instead of a new member in struct file. Should be in address_space_operations, I suspect. If an application opens a file twice, we only want to count it once? But we're putting the cart ahead of the horse here. Please provide us with a detailed description of the problem which you are addressing so that the MM developers can better consider how to address your requirements.