From mboxrd@z Thu Jan 1 00:00:00 1970 From: Will Deacon Subject: Re: [PATCH v10 6/7] ARM: add pmd_[dirty|mkclean] for THP Date: Mon, 7 Jul 2014 10:12:24 +0100 Message-ID: <20140707091223.GC3145@arm.com> References: <1404694438-10272-1-git-send-email-minchan@kernel.org> <1404694438-10272-7-git-send-email-minchan@kernel.org> Mime-Version: 1.0 Content-Type: text/plain; charset=us-ascii Return-path: Content-Disposition: inline In-Reply-To: <1404694438-10272-7-git-send-email-minchan-DgEjT+Ai2ygdnm+yROfE0A@public.gmane.org> Sender: linux-api-owner-u79uwXL29TY76Z2rM5mHXA@public.gmane.org To: Minchan Kim Cc: Andrew Morton , "linux-kernel-u79uwXL29TY76Z2rM5mHXA@public.gmane.org" , "linux-mm-Bw31MaZKKs3YtjvyW6yDsg@public.gmane.org" , Michael Kerrisk , Linux API , Hugh Dickins , Johannes Weiner , Rik van Riel , KOSAKI Motohiro , Mel Gorman , Jason Evans , Zhang Yanfei , "Kirill A. Shutemov" , Catalin Marinas , Steve Capper , Russell King , "linux-arm-kernel-IAPFreCvJWM7uuMidbF8XUB+6BGkLq7r@public.gmane.org" List-Id: linux-api@vger.kernel.org On Mon, Jul 07, 2014 at 01:53:57AM +0100, Minchan Kim wrote: > MADV_FREE needs pmd_dirty and pmd_mkclean for detecting recent > overwrite of the contents since MADV_FREE syscall is called for > THP page. > > This patch adds pmd_dirty and pmd_mkclean for THP page MADV_FREE > support. Looks fine to me, but it would be good if Steve can take a look too. BTW: the subject of the patch says 'ARM:' but this only affects arm64. Is there a corresponding patch for arch/arm/ too? Will From mboxrd@z Thu Jan 1 00:00:00 1970 From: will.deacon@arm.com (Will Deacon) Date: Mon, 7 Jul 2014 10:12:24 +0100 Subject: [PATCH v10 6/7] ARM: add pmd_[dirty|mkclean] for THP In-Reply-To: <1404694438-10272-7-git-send-email-minchan@kernel.org> References: <1404694438-10272-1-git-send-email-minchan@kernel.org> <1404694438-10272-7-git-send-email-minchan@kernel.org> Message-ID: <20140707091223.GC3145@arm.com> To: linux-arm-kernel@lists.infradead.org List-Id: linux-arm-kernel.lists.infradead.org On Mon, Jul 07, 2014 at 01:53:57AM +0100, Minchan Kim wrote: > MADV_FREE needs pmd_dirty and pmd_mkclean for detecting recent > overwrite of the contents since MADV_FREE syscall is called for > THP page. > > This patch adds pmd_dirty and pmd_mkclean for THP page MADV_FREE > support. Looks fine to me, but it would be good if Steve can take a look too. BTW: the subject of the patch says 'ARM:' but this only affects arm64. Is there a corresponding patch for arch/arm/ too? Will From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from mail-pa0-f53.google.com (mail-pa0-f53.google.com [209.85.220.53]) by kanga.kvack.org (Postfix) with ESMTP id 60EBC6B0037 for ; Mon, 7 Jul 2014 05:13:02 -0400 (EDT) Received: by mail-pa0-f53.google.com with SMTP id ey11so5136984pad.12 for ; Mon, 07 Jul 2014 02:13:02 -0700 (PDT) Received: from cam-admin0.cambridge.arm.com (cam-admin0.cambridge.arm.com. [217.140.96.50]) by mx.google.com with ESMTP id bh2si40608529pbb.204.2014.07.07.02.12.59 for ; Mon, 07 Jul 2014 02:13:01 -0700 (PDT) Date: Mon, 7 Jul 2014 10:12:24 +0100 From: Will Deacon Subject: Re: [PATCH v10 6/7] ARM: add pmd_[dirty|mkclean] for THP Message-ID: <20140707091223.GC3145@arm.com> References: <1404694438-10272-1-git-send-email-minchan@kernel.org> <1404694438-10272-7-git-send-email-minchan@kernel.org> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <1404694438-10272-7-git-send-email-minchan@kernel.org> Sender: owner-linux-mm@kvack.org List-ID: To: Minchan Kim Cc: Andrew Morton , "linux-kernel@vger.kernel.org" , "linux-mm@kvack.org" , Michael Kerrisk , Linux API , Hugh Dickins , Johannes Weiner , Rik van Riel , KOSAKI Motohiro , Mel Gorman , Jason Evans , Zhang Yanfei , "Kirill A. Shutemov" , Catalin Marinas , Steve Capper , Russell King , "linux-arm-kernel@lists.infradead.org" On Mon, Jul 07, 2014 at 01:53:57AM +0100, Minchan Kim wrote: > MADV_FREE needs pmd_dirty and pmd_mkclean for detecting recent > overwrite of the contents since MADV_FREE syscall is called for > THP page. > > This patch adds pmd_dirty and pmd_mkclean for THP page MADV_FREE > support. Looks fine to me, but it would be good if Steve can take a look too. BTW: the subject of the patch says 'ARM:' but this only affects arm64. Is there a corresponding patch for arch/arm/ too? Will -- 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 From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1752183AbaGGJMW (ORCPT ); Mon, 7 Jul 2014 05:12:22 -0400 Received: from cam-admin0.cambridge.arm.com ([217.140.96.50]:64147 "EHLO cam-admin0.cambridge.arm.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1751401AbaGGJMS (ORCPT ); Mon, 7 Jul 2014 05:12:18 -0400 Date: Mon, 7 Jul 2014 10:12:24 +0100 From: Will Deacon To: Minchan Kim Cc: Andrew Morton , "linux-kernel@vger.kernel.org" , "linux-mm@kvack.org" , Michael Kerrisk , Linux API , Hugh Dickins , Johannes Weiner , Rik van Riel , KOSAKI Motohiro , Mel Gorman , Jason Evans , Zhang Yanfei , "Kirill A. Shutemov" , Catalin Marinas , Steve Capper , Russell King , "linux-arm-kernel@lists.infradead.org" Subject: Re: [PATCH v10 6/7] ARM: add pmd_[dirty|mkclean] for THP Message-ID: <20140707091223.GC3145@arm.com> References: <1404694438-10272-1-git-send-email-minchan@kernel.org> <1404694438-10272-7-git-send-email-minchan@kernel.org> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <1404694438-10272-7-git-send-email-minchan@kernel.org> User-Agent: Mutt/1.5.23 (2014-03-12) Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org On Mon, Jul 07, 2014 at 01:53:57AM +0100, Minchan Kim wrote: > MADV_FREE needs pmd_dirty and pmd_mkclean for detecting recent > overwrite of the contents since MADV_FREE syscall is called for > THP page. > > This patch adds pmd_dirty and pmd_mkclean for THP page MADV_FREE > support. Looks fine to me, but it would be good if Steve can take a look too. BTW: the subject of the patch says 'ARM:' but this only affects arm64. Is there a corresponding patch for arch/arm/ too? Will