Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S934036Ab2KZROq (ORCPT ); Mon, 26 Nov 2012 12:14:46 -0500 Received: from youngberry.canonical.com ([91.189.89.112]:48151 "EHLO youngberry.canonical.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S933941Ab2KZROe (ORCPT ); Mon, 26 Nov 2012 12:14:34 -0500 From: Herton Ronaldo Krzesinski To: linux-kernel@vger.kernel.org, stable@vger.kernel.org, kernel-team@lists.ubuntu.com Cc: Yinghai Lu , "H. Peter Anvin" , Herton Ronaldo Krzesinski Subject: [PATCH 234/270] x86, mm: Use memblock memory loop instead of e820_RAM Date: Mon, 26 Nov 2012 14:58:44 -0200 Message-Id: <1353949160-26803-235-git-send-email-herton.krzesinski@canonical.com> X-Mailer: git-send-email 1.7.9.5 In-Reply-To: <1353949160-26803-1-git-send-email-herton.krzesinski@canonical.com> References: <1353949160-26803-1-git-send-email-herton.krzesinski@canonical.com> Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 1940 Lines: 61 3.5.7u1 -stable review patch. If anyone has any objections, please let me know. ------------------ From: Yinghai Lu commit 1f2ff682ac951ed82cc043cf140d2851084512df upstream. We need to handle E820_RAM and E820_RESERVED_KERNEL at the same time. Also memblock has page aligned range for ram, so we could avoid mapping partial pages. Signed-off-by: Yinghai Lu Link: http://lkml.kernel.org/r/CAE9FiQVZirvaBMFYRfXMmWEcHbKSicQEHz4VAwUv0xFCk51ZNw@mail.gmail.com Acked-by: Jacob Shin Signed-off-by: H. Peter Anvin Signed-off-by: Herton Ronaldo Krzesinski --- arch/x86/kernel/setup.c | 15 ++++++++------- 1 file changed, 8 insertions(+), 7 deletions(-) diff --git a/arch/x86/kernel/setup.c b/arch/x86/kernel/setup.c index e615c31..6cafbcd 100644 --- a/arch/x86/kernel/setup.c +++ b/arch/x86/kernel/setup.c @@ -920,18 +920,19 @@ void __init setup_arch(char **cmdline_p) #ifdef CONFIG_X86_64 if (max_pfn > max_low_pfn) { int i; - for (i = 0; i < e820.nr_map; i++) { - struct e820entry *ei = &e820.map[i]; + unsigned long start, end; + unsigned long start_pfn, end_pfn; - if (ei->addr + ei->size <= 1UL << 32) - continue; + for_each_mem_pfn_range(i, MAX_NUMNODES, &start_pfn, &end_pfn, + NULL) { - if (ei->type == E820_RESERVED) + end = PFN_PHYS(end_pfn); + if (end <= (1UL<<32)) continue; + start = PFN_PHYS(start_pfn); max_pfn_mapped = init_memory_mapping( - ei->addr < 1UL << 32 ? 1UL << 32 : ei->addr, - ei->addr + ei->size); + max((1UL<<32), start), end); } /* can we preseve max_low_pfn ?*/ -- 1.7.9.5 -- 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/