From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from mail-wm0-f71.google.com (mail-wm0-f71.google.com [74.125.82.71]) by kanga.kvack.org (Postfix) with ESMTP id E28266B0033 for ; Thu, 12 Jan 2017 09:07:32 -0500 (EST) Received: by mail-wm0-f71.google.com with SMTP id c206so4331213wme.3 for ; Thu, 12 Jan 2017 06:07:32 -0800 (PST) Received: from mx2.suse.de (mx2.suse.de. [195.135.220.15]) by mx.google.com with ESMTPS id bs15si7522856wjb.192.2017.01.12.06.07.31 for (version=TLS1 cipher=AES128-SHA bits=128/128); Thu, 12 Jan 2017 06:07:31 -0800 (PST) Date: Thu, 12 Jan 2017 15:07:30 +0100 From: Michal Hocko Subject: Re: [LSF/MM TOPIC][LSF/MM,ATTEND] shared TLB, hugetln reservations Message-ID: <20170112140730.GA2452@dhcp22.suse.cz> References: MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: Sender: owner-linux-mm@kvack.org List-ID: To: Mike Kravetz Cc: lsf-pc@lists.linux-foundation.org, linux-mm@kvack.org On Tue 10-01-17 15:02:22, Mike Kravetz wrote: [...] > proposed the topic "mm patches review bandwidth", and brought up the > related subject of areas in need of attention from an architectural > POV. I suggested that hugetlb reservations was one such area. I'm > guessing it was introduced to solve a rather concrete problem. However, > over time additional hugetlb functionality was added and the > capabilities of the reservation code was stretched to accommodate. > It would be good to step back and take a look at the design of this > code to determine if a rewrite/redesign is necessary. Michal suggested > documenting the current design/code as a first step. If people think > this is worth discussion at the summit, I could put together such a > design before the gathering. I think this would help a lot. Not many people are familiar with the current implementation and resulting problems. A high level design documentation can help to formulate issues easier and allow others to comment. Thanks! -- Michal Hocko SUSE Labs -- To unsubscribe, send a message with 'unsubscribe linux-mm' in the body to majordomo@kvack.org. For more info on Linux MM, see: http://www.linux-mm.org/ . Don't email: email@kvack.org