From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from mail-pd0-f175.google.com (mail-pd0-f175.google.com [209.85.192.175]) by kanga.kvack.org (Postfix) with ESMTP id 27D696B0032 for ; Fri, 5 Dec 2014 17:31:38 -0500 (EST) Received: by mail-pd0-f175.google.com with SMTP id y10so1509563pdj.6 for ; Fri, 05 Dec 2014 14:31:37 -0800 (PST) Received: from mail.linuxfoundation.org (mail.linuxfoundation.org. [140.211.169.12]) by mx.google.com with ESMTPS id e1si45999690pdi.234.2014.12.05.14.31.36 for (version=TLSv1.2 cipher=ECDHE-RSA-AES128-GCM-SHA256 bits=128/128); Fri, 05 Dec 2014 14:31:36 -0800 (PST) Date: Fri, 5 Dec 2014 14:31:34 -0800 From: Andrew Morton Subject: Re: [RFC] mm:add KPF_ZERO_PAGE flag for /proc/kpageflags Message-Id: <20141205143134.37139da2208c654a0d3cd942@linux-foundation.org> In-Reply-To: <35FD53F367049845BC99AC72306C23D103E688B313F2@CNBJMBX05.corpusers.net> References: <35FD53F367049845BC99AC72306C23D103E688B313EE@CNBJMBX05.corpusers.net> <35FD53F367049845BC99AC72306C23D103E688B313F2@CNBJMBX05.corpusers.net> Mime-Version: 1.0 Content-Type: text/plain; charset=US-ASCII Content-Transfer-Encoding: 7bit Sender: owner-linux-mm@kvack.org List-ID: To: "Wang, Yalin" Cc: 'Konstantin Khlebnikov' , "linux-kernel@vger.kernel.org" , "linux-mm@kvack.org" , "linux-arm-kernel@lists.infradead.org" , "n-horiguchi@ah.jp.nec.com" On Fri, 5 Dec 2014 18:22:33 +0800 "Wang, Yalin" wrote: > > -----Original Message----- > > From: Konstantin Khlebnikov [mailto:koct9i@gmail.com] > > Sent: Friday, December 05, 2014 5:21 PM > > To: Wang, Yalin > > Cc: linux-kernel@vger.kernel.org; linux-mm@kvack.org; linux-arm- > > kernel@lists.infradead.org; akpm@linux-foundation.org; n- > > horiguchi@ah.jp.nec.com > > Subject: Re: [RFC] mm:add KPF_ZERO_PAGE flag for /proc/kpageflags > > > > On Fri, Dec 5, 2014 at 11:57 AM, Wang, Yalin > > wrote: > > > This patch add KPF_ZERO_PAGE flag for zero_page, so that userspace > > > process can notice zero_page from /proc/kpageflags, and then do memory > > > analysis more accurately. > > > > It would be nice to mark also huge_zero_page. See (completely > > untested) patch in attachment. > > > Got it, > Thanks for your patch. Documentation/vm/pagemap.txt will need updating please. -- 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