From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from mail190.messagelabs.com (mail190.messagelabs.com [216.82.249.51]) by kanga.kvack.org (Postfix) with ESMTP id C7DD48D0040 for ; Mon, 28 Mar 2011 05:32:48 -0400 (EDT) Received: (from localhost user: 'dkiper' uid#4000 fake: STDIN (dkiper@router-fw.net-space.pl)) by router-fw-old.local.net-space.pl id S1577721Ab1C1Jcb (ORCPT ); Mon, 28 Mar 2011 11:32:31 +0200 Date: Mon, 28 Mar 2011 11:32:31 +0200 From: Daniel Kiper Subject: [PATCH 1/4] xen/balloon: Use PageHighMem() for high memory page detection Message-ID: <20110328093231.GF13826@router-fw-old.local.net-space.pl> Mime-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline Sender: owner-linux-mm@kvack.org List-ID: To: ian.campbell@citrix.com, akpm@linux-foundation.org, andi.kleen@intel.com, haicheng.li@linux.intel.com, fengguang.wu@intel.com, jeremy@goop.org, konrad.wilk@oracle.com, dan.magenheimer@oracle.com, v.tolstov@selfip.ru, pasik@iki.fi, dave@linux.vnet.ibm.com, wdauchy@gmail.com, rientjes@google.com, xen-devel@lists.xensource.com, linux-kernel@vger.kernel.org, linux-mm@kvack.org Replace pfn < max_low_pfn by !PageHighMem() in increase_reservation(). It makes more clearer what is going on. Signed-off-by: Daniel Kiper --- drivers/xen/balloon.c | 2 +- 1 files changed, 1 insertions(+), 1 deletions(-) diff --git a/drivers/xen/balloon.c b/drivers/xen/balloon.c index 043af8a..61665b2 100644 --- a/drivers/xen/balloon.c +++ b/drivers/xen/balloon.c @@ -246,7 +246,7 @@ static enum bp_state increase_reservation(unsigned long nr_pages) set_phys_to_machine(pfn, frame_list[i]); /* Link back into the page tables if not highmem. */ - if (!xen_hvm_domain() && pfn < max_low_pfn) { + if (!xen_hvm_domain() && !PageHighMem(page)) { int ret; ret = HYPERVISOR_update_va_mapping( (unsigned long)__va(pfn << PAGE_SHIFT), -- 1.5.6.5 -- 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/ . Fight unfair telecom internet charges in Canada: sign http://stopthemeter.ca/ Don't email: email@kvack.org