From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1753702AbbGOLcX (ORCPT ); Wed, 15 Jul 2015 07:32:23 -0400 Received: from e28smtp07.in.ibm.com ([122.248.162.7]:57387 "EHLO e28smtp07.in.ibm.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1750861AbbGOLcW (ORCPT ); Wed, 15 Jul 2015 07:32:22 -0400 X-Helo: d28dlp01.in.ibm.com X-MailFrom: aneesh.kumar@linux.vnet.ibm.com X-RcptTo: linux-kernel@vger.kernel.org From: "Aneesh Kumar K.V" To: "Kirill A. Shutemov" , Andrew Morton , Andrea Arcangeli , Hugh Dickins Cc: Dave Hansen , Mel Gorman , Rik van Riel , Vlastimil Babka , Christoph Lameter , Naoya Horiguchi , Steve Capper , Johannes Weiner , Michal Hocko , Jerome Marchand , Sasha Levin , linux-kernel@vger.kernel.org, linux-mm@kvack.org, "Kirill A. Shutemov" Subject: Re: [PATCH 20/36] powerpc, thp: remove infrastructure for handling splitting PMDs In-Reply-To: <1436550130-112636-21-git-send-email-kirill.shutemov@linux.intel.com> References: <1436550130-112636-1-git-send-email-kirill.shutemov@linux.intel.com> <1436550130-112636-21-git-send-email-kirill.shutemov@linux.intel.com> User-Agent: Notmuch/0.19+103~g294bb6d (http://notmuchmail.org) Emacs/24.4.1 (x86_64-pc-linux-gnu) Date: Wed, 15 Jul 2015 17:01:57 +0530 Message-ID: <87r3o91wsy.fsf@linux.vnet.ibm.com> MIME-Version: 1.0 Content-Type: text/plain X-TM-AS-MML: disable X-Content-Scanned: Fidelis XPS MAILER x-cbid: 15071511-0025-0000-0000-000005D9A1B3 Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org "Kirill A. Shutemov" writes: > With new refcounting we don't need to mark PMDs splitting. Let's drop > code to handle this. > > pmdp_splitting_flush() is not needed too: on splitting PMD we will do > pmdp_clear_flush() + set_pte_at(). pmdp_clear_flush() will do IPI as > needed for fast_gup. > Reviewed-by: Aneesh Kumar K.V From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from mail-pa0-f54.google.com (mail-pa0-f54.google.com [209.85.220.54]) by kanga.kvack.org (Postfix) with ESMTP id 4577F28027E for ; Wed, 15 Jul 2015 07:32:30 -0400 (EDT) Received: by padck2 with SMTP id ck2so22764804pad.0 for ; Wed, 15 Jul 2015 04:32:30 -0700 (PDT) Received: from e28smtp08.in.ibm.com (e28smtp08.in.ibm.com. [122.248.162.8]) by mx.google.com with ESMTPS id hb1si7095762pbd.49.2015.07.15.04.32.28 for (version=TLS1 cipher=AES128-SHA bits=128/128); Wed, 15 Jul 2015 04:32:29 -0700 (PDT) Received: from /spool/local by e28smtp08.in.ibm.com with IBM ESMTP SMTP Gateway: Authorized Use Only! Violators will be prosecuted for from ; Wed, 15 Jul 2015 17:02:26 +0530 Received: from d28relay04.in.ibm.com (d28relay04.in.ibm.com [9.184.220.61]) by d28dlp01.in.ibm.com (Postfix) with ESMTP id C26D9E006C for ; Wed, 15 Jul 2015 17:06:14 +0530 (IST) Received: from d28av04.in.ibm.com (d28av04.in.ibm.com [9.184.220.66]) by d28relay04.in.ibm.com (8.14.9/8.14.9/NCO v10.0) with ESMTP id t6FBW0F820709582 for ; Wed, 15 Jul 2015 17:02:01 +0530 Received: from d28av04.in.ibm.com (localhost [127.0.0.1]) by d28av04.in.ibm.com (8.14.4/8.14.4/NCO v10.0 AVout) with ESMTP id t6FBVwNK016953 for ; Wed, 15 Jul 2015 17:02:00 +0530 From: "Aneesh Kumar K.V" Subject: Re: [PATCH 20/36] powerpc, thp: remove infrastructure for handling splitting PMDs In-Reply-To: <1436550130-112636-21-git-send-email-kirill.shutemov@linux.intel.com> References: <1436550130-112636-1-git-send-email-kirill.shutemov@linux.intel.com> <1436550130-112636-21-git-send-email-kirill.shutemov@linux.intel.com> Date: Wed, 15 Jul 2015 17:01:57 +0530 Message-ID: <87r3o91wsy.fsf@linux.vnet.ibm.com> MIME-Version: 1.0 Content-Type: text/plain Sender: owner-linux-mm@kvack.org List-ID: To: "Kirill A. Shutemov" , Andrew Morton , Andrea Arcangeli , Hugh Dickins Cc: Dave Hansen , Mel Gorman , Rik van Riel , Vlastimil Babka , Christoph Lameter , Naoya Horiguchi , Steve Capper , Johannes Weiner , Michal Hocko , Jerome Marchand , Sasha Levin , linux-kernel@vger.kernel.org, linux-mm@kvack.org "Kirill A. Shutemov" writes: > With new refcounting we don't need to mark PMDs splitting. Let's drop > code to handle this. > > pmdp_splitting_flush() is not needed too: on splitting PMD we will do > pmdp_clear_flush() + set_pte_at(). pmdp_clear_flush() will do IPI as > needed for fast_gup. > Reviewed-by: Aneesh Kumar K.V -- 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