Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1754285Ab2KQDkw (ORCPT ); Fri, 16 Nov 2012 22:40:52 -0500 Received: from aserp1040.oracle.com ([141.146.126.69]:27527 "EHLO aserp1040.oracle.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1754263Ab2KQDku (ORCPT ); Fri, 16 Nov 2012 22:40:50 -0500 From: Yinghai Lu To: Thomas Gleixner , Ingo Molnar , "H. Peter Anvin" , Jacob Shin Cc: Andrew Morton , Stefano Stabellini , Konrad Rzeszutek Wilk , linux-kernel@vger.kernel.org, Yinghai Lu Subject: [PATCH v8 41/46] x86, mm: Use clamp_t() in init_range_memory_mapping Date: Fri, 16 Nov 2012 19:39:18 -0800 Message-Id: <1353123563-3103-42-git-send-email-yinghai@kernel.org> X-Mailer: git-send-email 1.7.7 In-Reply-To: <1353123563-3103-1-git-send-email-yinghai@kernel.org> References: <1353123563-3103-1-git-send-email-yinghai@kernel.org> X-Source-IP: ucsinet22.oracle.com [156.151.31.94] Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 1606 Lines: 56 save some lines, and make code more readable. Signed-off-by: Yinghai Lu --- arch/x86/mm/init.c | 21 +++++---------------- 1 files changed, 5 insertions(+), 16 deletions(-) diff --git a/arch/x86/mm/init.c b/arch/x86/mm/init.c index 2a27e5a..6f85de8 100644 --- a/arch/x86/mm/init.c +++ b/arch/x86/mm/init.c @@ -357,31 +357,20 @@ unsigned long __init_refok init_memory_mapping(unsigned long start, * would have hole in the middle or ends, and only ram parts will be mapped. */ static unsigned long __init init_range_memory_mapping( - unsigned long range_start, - unsigned long range_end) + unsigned long r_start, + unsigned long r_end) { unsigned long start_pfn, end_pfn; unsigned long mapped_ram_size = 0; int i; for_each_mem_pfn_range(i, MAX_NUMNODES, &start_pfn, &end_pfn, NULL) { - u64 start = (u64)start_pfn << PAGE_SHIFT; - u64 end = (u64)end_pfn << PAGE_SHIFT; - - if (end <= range_start) - continue; - - if (start < range_start) - start = range_start; - - if (start >= range_end) + u64 start = clamp_val(PFN_PHYS(start_pfn), r_start, r_end); + u64 end = clamp_val(PFN_PHYS(end_pfn), r_start, r_end); + if (start >= end) continue; - if (end > range_end) - end = range_end; - init_memory_mapping(start, end); - mapped_ram_size += end - start; } -- 1.7.7 -- 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/