From mboxrd@z Thu Jan 1 00:00:00 1970 From: Will Deacon Subject: Re: [PATCH v14 7/8] arm64: add pmd_[dirty|mkclean] for THP Date: Fri, 15 Aug 2014 11:55:51 +0100 Message-ID: <20140815105550.GL27466@arm.com> References: <1407981212-17818-1-git-send-email-minchan@kernel.org> <1407981212-17818-8-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: <1407981212-17818-8-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-mm-Bw31MaZKKs3YtjvyW6yDsg@public.gmane.org" , "linux-kernel-u79uwXL29TY76Z2rM5mHXA@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" , Russell King , "linux-arm-kernel-IAPFreCvJWM7uuMidbF8XUB+6BGkLq7r@public.gmane.org" , Steve Capper , Catalin Marinas List-Id: linux-api@vger.kernel.org On Thu, Aug 14, 2014 at 02:53:31AM +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. Acked-by: Will Deacon