Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S262143AbVDLUOn (ORCPT ); Tue, 12 Apr 2005 16:14:43 -0400 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S262144AbVDLUNc (ORCPT ); Tue, 12 Apr 2005 16:13:32 -0400 Received: from fire.osdl.org ([65.172.181.4]:29384 "EHLO smtp.osdl.org") by vger.kernel.org with ESMTP id S262143AbVDLKbe (ORCPT ); Tue, 12 Apr 2005 06:31:34 -0400 Message-Id: <200504121030.j3CAUie5005135@shell0.pdx.osdl.net> Subject: [patch 006/198] arm: add comment about max_low_pfn/max_pfn To: torvalds@osdl.org Cc: linux-kernel@vger.kernel.org, akpm@osdl.org, rmk+lkml@arm.linux.org.uk, rmk@arm.linux.org.uk From: akpm@osdl.org Date: Tue, 12 Apr 2005 03:30:37 -0700 Sender: linux-kernel-owner@vger.kernel.org X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 1356 Lines: 33 From: Russell King Oddly, max_low_pfn/max_pfn end up being the number of pages in the system, rather than the maximum PFN on ARM. This doesn't seem to cause any problems, so just add a note about it. Signed-off-by: Russell King Signed-off-by: Andrew Morton --- 25-akpm/arch/arm/mm/init.c | 3 +++ 1 files changed, 3 insertions(+) diff -puN arch/arm/mm/init.c~arm-add-comment-about-max_low_pfn-max_pfn arch/arm/mm/init.c --- 25/arch/arm/mm/init.c~arm-add-comment-about-max_low_pfn-max_pfn 2005-04-12 03:21:04.967381744 -0700 +++ 25-akpm/arch/arm/mm/init.c 2005-04-12 03:21:04.971381136 -0700 @@ -223,6 +223,9 @@ find_memend_and_nodes(struct meminfo *mi * This doesn't seem to be used by the Linux memory * manager any more. If we can get rid of it, we * also get rid of some of the stuff above as well. + * + * Note: max_low_pfn and max_pfn reflect the number + * of _pages_ in the system, not the maximum PFN. */ max_low_pfn = memend_pfn - O_PFN_DOWN(PHYS_OFFSET); max_pfn = memend_pfn - O_PFN_DOWN(PHYS_OFFSET); _ - To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/