From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from psmtp.com (na3sys010amx204.postini.com [74.125.245.204]) by kanga.kvack.org (Postfix) with SMTP id 2AD5D6B00A8 for ; Fri, 5 Apr 2013 07:58:22 -0400 (EDT) From: "Kirill A. Shutemov" Subject: [PATCHv3, RFC 07/34] thp, mm: basic defines for transparent huge page cache Date: Fri, 5 Apr 2013 14:59:31 +0300 Message-Id: <1365163198-29726-8-git-send-email-kirill.shutemov@linux.intel.com> In-Reply-To: <1365163198-29726-1-git-send-email-kirill.shutemov@linux.intel.com> References: <1365163198-29726-1-git-send-email-kirill.shutemov@linux.intel.com> Sender: owner-linux-mm@kvack.org List-ID: To: Andrea Arcangeli , Andrew Morton Cc: Al Viro , Hugh Dickins , Wu Fengguang , Jan Kara , Mel Gorman , linux-mm@kvack.org, Andi Kleen , Matthew Wilcox , "Kirill A. Shutemov" , Hillf Danton , Dave Hansen , linux-fsdevel@vger.kernel.org, linux-kernel@vger.kernel.org, "Kirill A. Shutemov" 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 -- To unsubscribe, send a message with 'unsubscribe linux-mm' in the body to majordomo@kvack.org. For more info on Linux MM, see: http://www.linux-mm.org/ . Don't email: email@kvack.org