From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from psmtp.com (na3sys010amx109.postini.com [74.125.245.109]) by kanga.kvack.org (Postfix) with SMTP id 174356B0034 for ; Sun, 28 Apr 2013 15:37:50 -0400 (EDT) Received: from /spool/local by e28smtp02.in.ibm.com with IBM ESMTP SMTP Gateway: Authorized Use Only! Violators will be prosecuted for from ; Mon, 29 Apr 2013 01:02:01 +0530 Received: from d28relay01.in.ibm.com (d28relay01.in.ibm.com [9.184.220.58]) by d28dlp03.in.ibm.com (Postfix) with ESMTP id 69890125804F for ; Mon, 29 Apr 2013 01:09:24 +0530 (IST) Received: from d28av03.in.ibm.com (d28av03.in.ibm.com [9.184.220.65]) by d28relay01.in.ibm.com (8.13.8/8.13.8/NCO v10.0) with ESMTP id r3SJbcwP54722656 for ; Mon, 29 Apr 2013 01:07:38 +0530 Received: from d28av03.in.ibm.com (loopback [127.0.0.1]) by d28av03.in.ibm.com (8.14.4/8.13.1/NCO v10.0 AVout) with ESMTP id r3SJbh08002980 for ; Mon, 29 Apr 2013 05:37:44 +1000 From: "Aneesh Kumar K.V" Subject: [PATCH -V7 01/18] mm/THP: HPAGE_SHIFT is not a #define on some arch Date: Mon, 29 Apr 2013 01:07:22 +0530 Message-Id: <1367177859-7893-2-git-send-email-aneesh.kumar@linux.vnet.ibm.com> In-Reply-To: <1367177859-7893-1-git-send-email-aneesh.kumar@linux.vnet.ibm.com> References: <1367177859-7893-1-git-send-email-aneesh.kumar@linux.vnet.ibm.com> Sender: owner-linux-mm@kvack.org List-ID: To: benh@kernel.crashing.org, paulus@samba.org, dwg@au1.ibm.com, linux-mm@kvack.org Cc: linuxppc-dev@lists.ozlabs.org, "Aneesh Kumar K.V" From: "Aneesh Kumar K.V" On archs like powerpc that support different hugepage sizes, HPAGE_SHIFT and other derived values like HPAGE_PMD_ORDER are not constants. So move that to hugepage_init Reviewed-by: Andrea Arcangeli Reviewed-by: David Gibson Signed-off-by: Aneesh Kumar K.V --- include/linux/huge_mm.h | 3 --- mm/huge_memory.c | 9 ++++++--- 2 files changed, 6 insertions(+), 6 deletions(-) diff --git a/include/linux/huge_mm.h b/include/linux/huge_mm.h index ee1c244..bdc5aef 100644 --- a/include/linux/huge_mm.h +++ b/include/linux/huge_mm.h @@ -119,9 +119,6 @@ extern void __split_huge_page_pmd(struct vm_area_struct *vma, } while (0) extern void split_huge_page_pmd_mm(struct mm_struct *mm, unsigned long address, pmd_t *pmd); -#if HPAGE_PMD_ORDER > MAX_ORDER -#error "hugepages can't be allocated by the buddy allocator" -#endif extern int hugepage_madvise(struct vm_area_struct *vma, unsigned long *vm_flags, int advice); extern void __vma_adjust_trans_huge(struct vm_area_struct *vma, diff --git a/mm/huge_memory.c b/mm/huge_memory.c index e2f7f5aa..78bd84f 100644 --- a/mm/huge_memory.c +++ b/mm/huge_memory.c @@ -45,7 +45,7 @@ unsigned long transparent_hugepage_flags __read_mostly = (1< MAX_ORDER)) { transparent_hugepage_flags = 0; return -EINVAL; } + khugepaged_pages_to_scan = HPAGE_PMD_NR*8; + khugepaged_max_ptes_none = HPAGE_PMD_NR-1; + err = hugepage_init_sysfs(&hugepage_kobj); if (err) return err; -- 1.8.1.2 -- 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