From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1756714Ab3A1J1g (ORCPT ); Mon, 28 Jan 2013 04:27:36 -0500 Received: from mga03.intel.com ([143.182.124.21]:49106 "EHLO mga03.intel.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1756321Ab3A1JXi (ORCPT ); Mon, 28 Jan 2013 04:23:38 -0500 X-ExtLoop1: 1 X-IronPort-AV: E=Sophos;i="4.84,550,1355126400"; d="scan'208";a="249123707" From: "Kirill A. Shutemov" To: Andrea Arcangeli , Andrew Morton , Al Viro Cc: Wu Fengguang , Jan Kara , Mel Gorman , linux-mm@kvack.org, Andi Kleen , Matthew Wilcox , "Kirill A. Shutemov" , linux-fsdevel@vger.kernel.org, linux-kernel@vger.kernel.org, "Kirill A. Shutemov" Subject: [PATCH, RFC 05/16] thp, mm: basic defines for transparent huge page cache Date: Mon, 28 Jan 2013 11:24:17 +0200 Message-Id: <1359365068-10147-6-git-send-email-kirill.shutemov@linux.intel.com> X-Mailer: git-send-email 1.7.10.4 In-Reply-To: <1359365068-10147-1-git-send-email-kirill.shutemov@linux.intel.com> References: <1359365068-10147-1-git-send-email-kirill.shutemov@linux.intel.com> Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org From: "Kirill A. Shutemov" Signed-off-by: Kirill A. Shutemov --- include/linux/huge_mm.h | 8 ++++++++ 1 file changed, 8 insertions(+) diff --git a/include/linux/huge_mm.h b/include/linux/huge_mm.h index ee1c244..a54939c 100644 --- a/include/linux/huge_mm.h +++ b/include/linux/huge_mm.h @@ -64,6 +64,10 @@ extern pmd_t *page_check_address_pmd(struct page *page, #define HPAGE_PMD_MASK HPAGE_MASK #define HPAGE_PMD_SIZE HPAGE_SIZE +#define HPAGE_CACHE_ORDER (HPAGE_SHIFT - PAGE_CACHE_SHIFT) +#define HPAGE_CACHE_NR (1L << HPAGE_CACHE_ORDER) +#define HPAGE_CACHE_INDEX_MASK (HPAGE_CACHE_NR - 1) + extern bool is_vma_temporary_stack(struct vm_area_struct *vma); #define transparent_hugepage_enabled(__vma) \ @@ -181,6 +185,10 @@ extern int do_huge_pmd_numa_page(struct mm_struct *mm, struct vm_area_struct *vm #define HPAGE_PMD_MASK ({ BUILD_BUG(); 0; }) #define HPAGE_PMD_SIZE ({ BUILD_BUG(); 0; }) +#define HPAGE_CACHE_ORDER ({ BUILD_BUG(); 0; }) +#define HPAGE_CACHE_NR ({ BUILD_BUG(); 0; }) +#define HPAGE_CACHE_INDEX_MASK ({ BUILD_BUG(); 0; }) + #define hpage_nr_pages(x) 1 #define transparent_hugepage_enabled(__vma) 0 -- 1.7.10.4