From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1752961AbaIYDDi (ORCPT ); Wed, 24 Sep 2014 23:03:38 -0400 Received: from cnbjrel01.sonyericsson.com ([219.141.167.165]:13437 "EHLO cnbjrel01.sonyericsson.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1752792AbaIYDDg convert rfc822-to-8bit (ORCPT ); Wed, 24 Sep 2014 23:03:36 -0400 From: "Wang, Yalin" To: "'Grant Likely'" , "'robh+dt@kernel.org'" , "'devicetree@vger.kernel.org'" , "'pawel.moll@arm.com'" , "'mark.rutland@arm.com'" , "'ijc+devicetree@hellion.org.uk'" , "'linux-kernel@vger.kernel.org'" Date: Thu, 25 Sep 2014 11:03:33 +0800 Subject: RE: [RFC] fdt:free the fdt reserved memory Thread-Topic: [RFC] fdt:free the fdt reserved memory Thread-Index: Ac/YBi8XwgJNR38BT0CTo0LQUv1JiwAYKydw Message-ID: <35FD53F367049845BC99AC72306C23D103D6DB491635@CNBJMBX05.corpusers.net> References: <35FD53F367049845BC99AC72306C23D103D6DB49161A@CNBJMBX05.corpusers.net> <20140924144520.697A8C40738@trevor.secretlab.ca> In-Reply-To: <20140924144520.697A8C40738@trevor.secretlab.ca> Accept-Language: en-US Content-Language: en-US X-MS-Has-Attach: X-MS-TNEF-Correlator: acceptlanguage: en-US Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 8BIT MIME-Version: 1.0 Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org > On Thu, 18 Sep 2014 17:25:12 +0800, "Wang, Yalin" > wrote: > > This patch make some change to unflatten_dt_node(), make sure the > > device_node don't reference to fdt raw blob memory, so that we can > > free the raw blob reserved memory after initcalls. > > > > Signed-off-by: Yalin Wang > > Do you have any measurements showing a change in available memory before > and after the patch? > > g. > I test it on ARM, Fdt is 164K, <6>[ 5.134319] Freeing fdt memory: 164K Before this patch, the total memory of kernel is, MemTotal: 883224 kB After apply this patch, MemTotal: 883236 kB We can get more 12KB memory. Thanks