From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from mail-pa0-f52.google.com (mail-pa0-f52.google.com [209.85.220.52]) by kanga.kvack.org (Postfix) with ESMTP id EA7686B0031 for ; Tue, 15 Oct 2013 16:43:20 -0400 (EDT) Received: by mail-pa0-f52.google.com with SMTP id kl14so9576146pab.39 for ; Tue, 15 Oct 2013 13:43:20 -0700 (PDT) Date: Tue, 15 Oct 2013 13:43:17 -0700 From: Andrew Morton Subject: Re: [PATCH 0/11] update page table walker Message-Id: <20131015134317.02d819f6905f790007ba1842@linux-foundation.org> In-Reply-To: <1381772230-26878-1-git-send-email-n-horiguchi@ah.jp.nec.com> References: <1381772230-26878-1-git-send-email-n-horiguchi@ah.jp.nec.com> Mime-Version: 1.0 Content-Type: text/plain; charset=US-ASCII Content-Transfer-Encoding: 7bit Sender: owner-linux-mm@kvack.org List-ID: To: Naoya Horiguchi Cc: linux-mm@kvack.org, Matt Mackall , Cliff Wickman , KOSAKI Motohiro , Johannes Weiner , KAMEZAWA Hiroyuki , Michal Hocko , "Aneesh Kumar K.V" , Pavel Emelyanov , linux-kernel@vger.kernel.org, Thierry Reding , Mark Brown On Mon, 14 Oct 2013 13:36:59 -0400 Naoya Horiguchi wrote: > Page table walker is widely used when you want to traverse page table > tree and do some work for the entries (and pages pointed to by them.) > This is a common operation, and keep the code clean and maintainable > is important. Moreover this patchset introduces caller-specific walk > control function which is helpful for us to newly introduce page table > walker to some other users. Core change comes from patch 1, so please > see it for how it's supposed to work. > > This patchset changes core code in mm/pagewalk.c at first in patch 1 and 2, > and then updates all of current users to make the code cleaner in patch > 3-9. Patch 10 changes the interface of hugetlb_entry(), I put it here to > keep bisectability of the whole patchset. Patch 11 applies page table walker > to a new user queue_pages_range(). Unfortunately this is very incompatible with pending changes in fs/proc/task_mmu.c. Especially Kirill's "mm, thp: change pmd_trans_huge_lock() to return taken lock". Stephen will be away for a couple more weeks so I'll get an mmotm released and hopefully Thierry and Mark will scoop it up(?). Alternatively, http://git.cmpxchg.org/?p=linux-mmots.git;a=summary is up to date. Please take a look, decide what you think we should do? -- 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