From patchwork Thu Mar 23 23:01:49 2017 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Pavel Tatashin X-Patchwork-Id: 742982 X-Patchwork-Delegate: davem@davemloft.net Return-Path: X-Original-To: patchwork-incoming@ozlabs.org Delivered-To: patchwork-incoming@ozlabs.org Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by ozlabs.org (Postfix) with ESMTP id 3vq23M4HPbz9s7R for ; Fri, 24 Mar 2017 09:56:15 +1100 (AEDT) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1756038AbdCWWza (ORCPT ); Thu, 23 Mar 2017 18:55:30 -0400 Received: from aserp1040.oracle.com ([141.146.126.69]:50837 "EHLO aserp1040.oracle.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1751235AbdCWWz3 (ORCPT ); Thu, 23 Mar 2017 18:55:29 -0400 Received: from aserv0022.oracle.com (aserv0022.oracle.com [141.146.126.234]) by aserp1040.oracle.com (Sentrion-MTA-4.3.2/Sentrion-MTA-4.3.2) with ESMTP id v2NMtJYC000543 (version=TLSv1.2 cipher=ECDHE-RSA-AES256-GCM-SHA384 bits=256 verify=OK); Thu, 23 Mar 2017 22:55:19 GMT Received: from aserv0122.oracle.com (aserv0122.oracle.com [141.146.126.236]) by aserv0022.oracle.com (8.14.4/8.14.4) with ESMTP id v2NMtJnw011588 (version=TLSv1/SSLv3 cipher=DHE-RSA-AES256-GCM-SHA384 bits=256 verify=OK); Thu, 23 Mar 2017 22:55:19 GMT Received: from abhmp0008.oracle.com (abhmp0008.oracle.com [141.146.116.14]) by aserv0122.oracle.com (8.14.4/8.14.4) with ESMTP id v2NMtH7k015175; Thu, 23 Mar 2017 22:55:17 GMT Received: from ca-ldom103.us.oracle.com (/10.129.68.23) by default (Oracle Beehive Gateway v4.0) with ESMTP ; Thu, 23 Mar 2017 15:55:17 -0700 From: Pavel Tatashin To: linux-kernel@vger.kernel.org, sparclinux@vger.kernel.org, linux-mm@kvack.org, linuxppc-dev@lists.ozlabs.org, linux-s390@vger.kernel.or Subject: [v1 1/5] sparc64: simplify vmemmap_populate Date: Thu, 23 Mar 2017 19:01:49 -0400 Message-Id: <1490310113-824438-2-git-send-email-pasha.tatashin@oracle.com> X-Mailer: git-send-email 1.7.1 In-Reply-To: <1490310113-824438-1-git-send-email-pasha.tatashin@oracle.com> References: <1490310113-824438-1-git-send-email-pasha.tatashin@oracle.com> X-Source-IP: aserv0022.oracle.com [141.146.126.234] Sender: sparclinux-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: sparclinux@vger.kernel.org Remove duplicating code, by using common functions vmemmap_pud_populate and vmemmap_pgd_populate functions. Signed-off-by: Pavel Tatashin Reviewed-by: Shannon Nelson --- arch/sparc/mm/init_64.c | 23 ++++++----------------- 1 files changed, 6 insertions(+), 17 deletions(-) diff --git a/arch/sparc/mm/init_64.c b/arch/sparc/mm/init_64.c index 2c0cb2a..01eccab 100644 --- a/arch/sparc/mm/init_64.c +++ b/arch/sparc/mm/init_64.c @@ -2526,30 +2526,19 @@ int __meminit vmemmap_populate(unsigned long vstart, unsigned long vend, vstart = vstart & PMD_MASK; vend = ALIGN(vend, PMD_SIZE); for (; vstart < vend; vstart += PMD_SIZE) { - pgd_t *pgd = pgd_offset_k(vstart); + pgd_t *pgd = vmemmap_pgd_populate(vstart, node); unsigned long pte; pud_t *pud; pmd_t *pmd; - if (pgd_none(*pgd)) { - pud_t *new = vmemmap_alloc_block(PAGE_SIZE, node); + if (!pgd) + return -ENOMEM; - if (!new) - return -ENOMEM; - pgd_populate(&init_mm, pgd, new); - } - - pud = pud_offset(pgd, vstart); - if (pud_none(*pud)) { - pmd_t *new = vmemmap_alloc_block(PAGE_SIZE, node); - - if (!new) - return -ENOMEM; - pud_populate(&init_mm, pud, new); - } + pud = vmemmap_pud_populate(pgd, vstart, node); + if (!pud) + return -ENOMEM; pmd = pmd_offset(pud, vstart); - pte = pmd_val(*pmd); if (!(pte & _PAGE_VALID)) { void *block = vmemmap_alloc_block(PMD_SIZE, node);