Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1752327Ab2JIElJ (ORCPT ); Tue, 9 Oct 2012 00:41:09 -0400 Received: from acsinet15.oracle.com ([141.146.126.227]:45545 "EHLO acsinet15.oracle.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1752024Ab2JIElB (ORCPT ); Tue, 9 Oct 2012 00:41:01 -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 , Konrad Rzeszutek Wilk , Jeremy Fitzhardinge Subject: [PATCH 09/10] x86, mm: Hide pgt_buf_* into internal to xen Date: Mon, 8 Oct 2012 21:39:17 -0700 Message-Id: <1349757558-10856-10-git-send-email-yinghai@kernel.org> X-Mailer: git-send-email 1.7.7 In-Reply-To: <1349757558-10856-1-git-send-email-yinghai@kernel.org> References: <1349757558-10856-1-git-send-email-yinghai@kernel.org> X-Source-IP: ucsinet21.oracle.com [156.151.31.93] Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 1938 Lines: 59 only should be used by init.c and init_64.c and init_32.c Signed-off-by: Yinghai Lu Cc: Konrad Rzeszutek Wilk Cc: Jeremy Fitzhardinge --- arch/x86/include/asm/init.h | 2 ++ arch/x86/mm/init.c | 5 +++++ arch/x86/xen/mmu.c | 2 +- 3 files changed, 8 insertions(+), 1 deletions(-) diff --git a/arch/x86/include/asm/init.h b/arch/x86/include/asm/init.h index 4f13998..b69e537 100644 --- a/arch/x86/include/asm/init.h +++ b/arch/x86/include/asm/init.h @@ -16,4 +16,6 @@ extern unsigned long __initdata pgt_buf_start; extern unsigned long __meminitdata pgt_buf_end; extern unsigned long __meminitdata pgt_buf_top; +bool is_pfn_in_early_pgt_buf(unsigned long pfn); + #endif /* _ASM_X86_INIT_32_H */ diff --git a/arch/x86/mm/init.c b/arch/x86/mm/init.c index 6622d35..1becfbd 100644 --- a/arch/x86/mm/init.c +++ b/arch/x86/mm/init.c @@ -21,6 +21,11 @@ unsigned long __initdata pgt_buf_start; unsigned long __meminitdata pgt_buf_end; unsigned long __meminitdata pgt_buf_top; +bool __init is_pfn_in_early_pgt_buf(unsigned long pfn) +{ + return pfn >= pgt_buf_start && pfn < pgt_buf_top; +} + int after_bootmem; int direct_gbpages diff --git a/arch/x86/xen/mmu.c b/arch/x86/xen/mmu.c index 7607a33..25f68bc 100644 --- a/arch/x86/xen/mmu.c +++ b/arch/x86/xen/mmu.c @@ -1410,7 +1410,7 @@ static pte_t __init mask_rw_pte(pte_t *ptep, pte_t pte) * If the new pfn is within the range of the newly allocated * kernel pagetable, make sure it is RO. */ - if (pfn >= pgt_buf_start && pfn < pgt_buf_top) + if (is_pfn_in_early_pgt_buf(pfn)) pte = pte_wrprotect(pte); return pte; -- 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/