From patchwork Thu May 2 15:28:35 2019 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Mike Rapoport X-Patchwork-Id: 10927239 Return-Path: Received: from mail.wl.linuxfoundation.org (pdx-wl-mail.web.codeaurora.org [172.30.200.125]) by pdx-korg-patchwork-2.web.codeaurora.org (Postfix) with ESMTP id 0BC6F14B6 for ; Thu, 2 May 2019 15:39:00 +0000 (UTC) Received: from mail.wl.linuxfoundation.org (localhost [127.0.0.1]) by mail.wl.linuxfoundation.org (Postfix) with ESMTP id F13951FF81 for ; Thu, 2 May 2019 15:38:59 +0000 (UTC) Received: by mail.wl.linuxfoundation.org (Postfix, from userid 486) id E4E072018E; Thu, 2 May 2019 15:38:59 +0000 (UTC) X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on pdx-wl-mail.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-7.9 required=2.0 tests=BAYES_00,MAILING_LIST_MULTI, RCVD_IN_DNSWL_HI autolearn=unavailable version=3.3.1 Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.wl.linuxfoundation.org (Postfix) with ESMTP id 887A71FF81 for ; Thu, 2 May 2019 15:38:59 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1728059AbfEBP3w (ORCPT ); Thu, 2 May 2019 11:29:52 -0400 Received: from mx0a-001b2d01.pphosted.com ([148.163.156.1]:54304 "EHLO mx0a-001b2d01.pphosted.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1728526AbfEBP3s (ORCPT ); Thu, 2 May 2019 11:29:48 -0400 Received: from pps.filterd (m0098393.ppops.net [127.0.0.1]) by mx0a-001b2d01.pphosted.com (8.16.0.27/8.16.0.27) with SMTP id x42FSEYl032262 for ; Thu, 2 May 2019 11:29:47 -0400 Received: from e06smtp01.uk.ibm.com (e06smtp01.uk.ibm.com [195.75.94.97]) by mx0a-001b2d01.pphosted.com with ESMTP id 2s81df5ufy-1 (version=TLSv1.2 cipher=AES256-GCM-SHA384 bits=256 verify=NOT) for ; Thu, 02 May 2019 11:29:47 -0400 Received: from localhost by e06smtp01.uk.ibm.com with IBM ESMTP SMTP Gateway: Authorized Use Only! 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Violators will be prosecuted; (version=TLSv1/SSLv3 cipher=AES256-GCM-SHA384 bits=256/256) Thu, 2 May 2019 16:29:35 +0100 Received: from d06av22.portsmouth.uk.ibm.com (d06av22.portsmouth.uk.ibm.com [9.149.105.58]) by b06cxnps4076.portsmouth.uk.ibm.com (8.14.9/8.14.9/NCO v10.0) with ESMTP id x42FTYnT27132096 (version=TLSv1/SSLv3 cipher=DHE-RSA-AES256-GCM-SHA384 bits=256 verify=OK); Thu, 2 May 2019 15:29:34 GMT Received: from d06av22.portsmouth.uk.ibm.com (unknown [127.0.0.1]) by IMSVA (Postfix) with ESMTP id B1E2F4C040; Thu, 2 May 2019 15:29:34 +0000 (GMT) Received: from d06av22.portsmouth.uk.ibm.com (unknown [127.0.0.1]) by IMSVA (Postfix) with ESMTP id 2F94A4C04A; Thu, 2 May 2019 15:29:30 +0000 (GMT) Received: from rapoport-lnx (unknown [9.148.205.209]) by d06av22.portsmouth.uk.ibm.com (Postfix) with ESMTPS; Thu, 2 May 2019 15:29:30 +0000 (GMT) Received: by rapoport-lnx (sSMTP sendmail emulation); Thu, 02 May 2019 18:29:29 +0300 From: Mike Rapoport To: Andrew Morton Cc: Arnd Bergmann , Catalin Marinas , Geert Uytterhoeven , Greentime Hu , Guan Xuetao , Guo Ren , Helge Deller , Ley Foon Tan , Matthew Wilcox , Matt Turner , Michael Ellerman , Michal Hocko , Palmer Dabbelt , Paul Burton , Richard Kuo , Richard Weinberger , Russell King , Sam Creasey , x86@kernel.org, linux-alpha@vger.kernel.org, linux-arch@vger.kernel.org, linux-arm-kernel@lists.infradead.org, linux-hexagon@vger.kernel.org, linux-kernel@vger.kernel.org, linux-m68k@lists.linux-m68k.org, linux-mips@vger.kernel.org, linux-parisc@vger.kernel.org, linuxppc-dev@lists.ozlabs.org, linux-riscv@lists.infradead.org, linux-um@lists.infradead.org, nios2-dev@lists.rocketboards.org, Mike Rapoport Subject: [PATCH 08/15] mips: switch to generic version of pte allocation Date: Thu, 2 May 2019 18:28:35 +0300 X-Mailer: git-send-email 2.7.4 In-Reply-To: <1556810922-20248-1-git-send-email-rppt@linux.ibm.com> References: <1556810922-20248-1-git-send-email-rppt@linux.ibm.com> X-TM-AS-GCONF: 00 x-cbid: 19050215-4275-0000-0000-00000330AE68 X-IBM-AV-DETECTION: SAVI=unused REMOTE=unused XFE=unused x-cbparentid: 19050215-4276-0000-0000-000038400E1C Message-Id: <1556810922-20248-9-git-send-email-rppt@linux.ibm.com> X-Proofpoint-Virus-Version: vendor=fsecure engine=2.50.10434:,, definitions=2019-05-02_08:,, signatures=0 X-Proofpoint-Spam-Details: rule=outbound_notspam policy=outbound score=0 priorityscore=1501 malwarescore=0 suspectscore=2 phishscore=0 bulkscore=0 spamscore=0 clxscore=1015 lowpriorityscore=0 mlxscore=0 impostorscore=0 mlxlogscore=773 adultscore=0 classifier=spam adjust=0 reason=mlx scancount=1 engine=8.0.1-1810050000 definitions=main-1905020103 Sender: linux-mips-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-mips@vger.kernel.org X-Virus-Scanned: ClamAV using ClamSMTP MIPS allocates kernel PTE pages with __get_free_pages(GFP_KERNEL | __GFP_ZERO, PTE_ORDER) and user PTE pages with alloc_pages(GFP_KERNEL | __GFP_ZERO, PTE_ORDER) The PTE_ORDER is hardwired to zero, which makes MIPS implementation almost identical to the generic one. Switch MIPS to the generic version that does exactly the same thing for the kernel page tables and adds __GFP_ACCOUNT for the user PTEs. The pte_free_kernel() and pte_free() versions on mips are identical to the generic ones and can be simply dropped. Signed-off-by: Mike Rapoport --- arch/mips/include/asm/pgalloc.h | 33 ++------------------------------- 1 file changed, 2 insertions(+), 31 deletions(-) diff --git a/arch/mips/include/asm/pgalloc.h b/arch/mips/include/asm/pgalloc.h index 27808d9..aa16b85 100644 --- a/arch/mips/include/asm/pgalloc.h +++ b/arch/mips/include/asm/pgalloc.h @@ -13,6 +13,8 @@ #include #include +#include /* for pte_{alloc,free}_one */ + static inline void pmd_populate_kernel(struct mm_struct *mm, pmd_t *pmd, pte_t *pte) { @@ -50,37 +52,6 @@ static inline void pgd_free(struct mm_struct *mm, pgd_t *pgd) free_pages((unsigned long)pgd, PGD_ORDER); } -static inline pte_t *pte_alloc_one_kernel(struct mm_struct *mm) -{ - return (pte_t *)__get_free_pages(GFP_KERNEL | __GFP_ZERO, PTE_ORDER); -} - -static inline struct page *pte_alloc_one(struct mm_struct *mm) -{ - struct page *pte; - - pte = alloc_pages(GFP_KERNEL, PTE_ORDER); - if (!pte) - return NULL; - clear_highpage(pte); - if (!pgtable_page_ctor(pte)) { - __free_page(pte); - return NULL; - } - return pte; -} - -static inline void pte_free_kernel(struct mm_struct *mm, pte_t *pte) -{ - free_pages((unsigned long)pte, PTE_ORDER); -} - -static inline void pte_free(struct mm_struct *mm, pgtable_t pte) -{ - pgtable_page_dtor(pte); - __free_pages(pte, PTE_ORDER); -} - #define __pte_free_tlb(tlb,pte,address) \ do { \ pgtable_page_dtor(pte); \