Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1753789Ab2JIX65 (ORCPT ); Tue, 9 Oct 2012 19:58:57 -0400 Received: from acsinet15.oracle.com ([141.146.126.227]:49908 "EHLO acsinet15.oracle.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1751666Ab2JIX6y (ORCPT ); Tue, 9 Oct 2012 19:58:54 -0400 From: Yinghai Lu To: Thomas Gleixner , Ingo Molnar , "H. Peter Anvin" , Jacob Shin , Tejun Heo Cc: Stefano Stabellini , linux-kernel@vger.kernel.org, Yinghai Lu Subject: [PATCH 4/7] x86, mm: only keep initial mapping for ram Date: Tue, 9 Oct 2012 16:58:32 -0700 Message-Id: <1349827115-16600-5-git-send-email-yinghai@kernel.org> X-Mailer: git-send-email 1.7.7 In-Reply-To: <1349827115-16600-1-git-send-email-yinghai@kernel.org> References: <1349827115-16600-1-git-send-email-yinghai@kernel.org> X-Source-IP: acsinet22.oracle.com [141.146.126.238] Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 1901 Lines: 51 0 mean any e820 type will be kept, and only hole is removed. change to E820_RAM and E820_RESERVED_KERN only. Signed-off-by: Yinghai Lu --- arch/x86/mm/init_64.c | 9 ++++++--- 1 files changed, 6 insertions(+), 3 deletions(-) diff --git a/arch/x86/mm/init_64.c b/arch/x86/mm/init_64.c index 61b3c44..4898e80 100644 --- a/arch/x86/mm/init_64.c +++ b/arch/x86/mm/init_64.c @@ -373,7 +373,8 @@ phys_pte_init(pte_t *pte_page, unsigned long addr, unsigned long end, next = (addr & PAGE_MASK) + PAGE_SIZE; if (addr >= end) { if (!after_bootmem && - !e820_any_mapped(addr & PAGE_MASK, next, 0)) + !e820_any_mapped(addr & PAGE_MASK, next, E820_RAM) && + !e820_any_mapped(addr & PAGE_MASK, next, E820_RESERVED_KERN)) set_pte(pte, __pte(0)); continue; } @@ -420,7 +421,8 @@ phys_pmd_init(pmd_t *pmd_page, unsigned long address, unsigned long end, next = (address & PMD_MASK) + PMD_SIZE; if (address >= end) { if (!after_bootmem && - !e820_any_mapped(address & PMD_MASK, next, 0)) + !e820_any_mapped(address & PMD_MASK, next, E820_RAM) && + !e820_any_mapped(address & PMD_MASK, next, E820_RESERVED_KERN)) set_pmd(pmd, __pmd(0)); continue; } @@ -494,7 +496,8 @@ phys_pud_init(pud_t *pud_page, unsigned long addr, unsigned long end, next = (addr & PUD_MASK) + PUD_SIZE; if (addr >= end) { if (!after_bootmem && - !e820_any_mapped(addr & PUD_MASK, next, 0)) + !e820_any_mapped(addr & PUD_MASK, next, E820_RAM) && + !e820_any_mapped(addr & PUD_MASK, next, E820_RESERVED_KERN)) set_pud(pud, __pud(0)); continue; } -- 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/