From patchwork Tue Jul 31 06:01:53 2018 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Alexandre Ghiti X-Patchwork-Id: 10550079 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 AAE3B96FA for ; Tue, 31 Jul 2018 06:13:20 +0000 (UTC) Received: from mail.wl.linuxfoundation.org (localhost [127.0.0.1]) by mail.wl.linuxfoundation.org (Postfix) with ESMTP id 979F02A6AD for ; Tue, 31 Jul 2018 06:13:20 +0000 (UTC) Received: by mail.wl.linuxfoundation.org (Postfix, from userid 486) id 8A5BA2A6C3; Tue, 31 Jul 2018 06:13:20 +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 ED88E2A6B4 for ; Tue, 31 Jul 2018 06:13:19 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1729099AbeGaHvv (ORCPT ); Tue, 31 Jul 2018 03:51:51 -0400 Received: from relay3-d.mail.gandi.net ([217.70.183.195]:46003 "EHLO relay3-d.mail.gandi.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1726824AbeGaHvu (ORCPT ); Tue, 31 Jul 2018 03:51:50 -0400 X-Originating-IP: 79.86.19.127 Received: from alex.numericable.fr (127.19.86.79.rev.sfr.net [79.86.19.127]) (Authenticated sender: alex@ghiti.fr) by relay3-d.mail.gandi.net (Postfix) with ESMTPSA id 60F2060002; Tue, 31 Jul 2018 06:13:03 +0000 (UTC) From: Alexandre Ghiti To: linux-mm@kvack.org, mike.kravetz@oracle.com, linux@armlinux.org.uk, catalin.marinas@arm.com, will.deacon@arm.com, tony.luck@intel.com, fenghua.yu@intel.com, ralf@linux-mips.org, paul.burton@mips.com, jhogan@kernel.org, jejb@parisc-linux.org, deller@gmx.de, benh@kernel.crashing.org, paulus@samba.org, mpe@ellerman.id.au, ysato@users.sourceforge.jp, dalias@libc.org, davem@davemloft.net, tglx@linutronix.de, mingo@redhat.com, hpa@zytor.com, x86@kernel.org, arnd@arndb.de, linux-arm-kernel@lists.infradead.org, linux-kernel@vger.kernel.org, linux-ia64@vger.kernel.org, linux-mips@linux-mips.org, linux-parisc@vger.kernel.org, linuxppc-dev@lists.ozlabs.org, linux-sh@vger.kernel.org, sparclinux@vger.kernel.org, linux-arch@vger.kernel.org Cc: Alexandre Ghiti Subject: [PATCH v5 09/11] hugetlb: Introduce generic version of huge_ptep_set_wrprotect Date: Tue, 31 Jul 2018 06:01:53 +0000 Message-Id: <20180731060155.16915-10-alex@ghiti.fr> X-Mailer: git-send-email 2.16.2 In-Reply-To: <20180731060155.16915-1-alex@ghiti.fr> References: <20180731060155.16915-1-alex@ghiti.fr> Sender: linux-parisc-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-parisc@vger.kernel.org X-Virus-Scanned: ClamAV using ClamSMTP arm, ia64, mips, sh, x86 architectures use the same version of huge_ptep_set_wrprotect, so move this generic implementation into asm-generic/hugetlb.h. Note: powerpc uses twice for book3s/32 and nohash/32 the same version as the above architectures, but the modification was not straightforward and hence has not been done. Signed-off-by: Alexandre Ghiti Reviewed-by: Mike Kravetz --- arch/arm/include/asm/hugetlb-3level.h | 6 ------ arch/arm64/include/asm/hugetlb.h | 1 + arch/ia64/include/asm/hugetlb.h | 6 ------ arch/mips/include/asm/hugetlb.h | 6 ------ arch/parisc/include/asm/hugetlb.h | 1 + arch/powerpc/include/asm/book3s/32/pgtable.h | 2 ++ arch/powerpc/include/asm/book3s/64/pgtable.h | 1 + arch/powerpc/include/asm/nohash/32/pgtable.h | 2 ++ arch/powerpc/include/asm/nohash/64/pgtable.h | 1 + arch/sh/include/asm/hugetlb.h | 6 ------ arch/sparc/include/asm/hugetlb.h | 1 + arch/x86/include/asm/hugetlb.h | 6 ------ include/asm-generic/hugetlb.h | 8 ++++++++ 13 files changed, 17 insertions(+), 30 deletions(-) diff --git a/arch/arm/include/asm/hugetlb-3level.h b/arch/arm/include/asm/hugetlb-3level.h index b897541520ef..8247cd6a2ac6 100644 --- a/arch/arm/include/asm/hugetlb-3level.h +++ b/arch/arm/include/asm/hugetlb-3level.h @@ -37,12 +37,6 @@ static inline pte_t huge_ptep_get(pte_t *ptep) return retval; } -static inline void huge_ptep_set_wrprotect(struct mm_struct *mm, - unsigned long addr, pte_t *ptep) -{ - ptep_set_wrprotect(mm, addr, ptep); -} - static inline int huge_ptep_set_access_flags(struct vm_area_struct *vma, unsigned long addr, pte_t *ptep, pte_t pte, int dirty) diff --git a/arch/arm64/include/asm/hugetlb.h b/arch/arm64/include/asm/hugetlb.h index 3e7f6e69b28d..f4f69ae5466e 100644 --- a/arch/arm64/include/asm/hugetlb.h +++ b/arch/arm64/include/asm/hugetlb.h @@ -48,6 +48,7 @@ extern int huge_ptep_set_access_flags(struct vm_area_struct *vma, #define __HAVE_ARCH_HUGE_PTEP_GET_AND_CLEAR extern pte_t huge_ptep_get_and_clear(struct mm_struct *mm, unsigned long addr, pte_t *ptep); +#define __HAVE_ARCH_HUGE_PTEP_SET_WRPROTECT extern void huge_ptep_set_wrprotect(struct mm_struct *mm, unsigned long addr, pte_t *ptep); #define __HAVE_ARCH_HUGE_PTEP_CLEAR_FLUSH diff --git a/arch/ia64/include/asm/hugetlb.h b/arch/ia64/include/asm/hugetlb.h index cbe296271030..49d1f7949f3a 100644 --- a/arch/ia64/include/asm/hugetlb.h +++ b/arch/ia64/include/asm/hugetlb.h @@ -27,12 +27,6 @@ static inline void huge_ptep_clear_flush(struct vm_area_struct *vma, { } -static inline void huge_ptep_set_wrprotect(struct mm_struct *mm, - unsigned long addr, pte_t *ptep) -{ - ptep_set_wrprotect(mm, addr, ptep); -} - static inline int huge_ptep_set_access_flags(struct vm_area_struct *vma, unsigned long addr, pte_t *ptep, pte_t pte, int dirty) diff --git a/arch/mips/include/asm/hugetlb.h b/arch/mips/include/asm/hugetlb.h index 6ff2531cfb1d..3dcf5debf8c4 100644 --- a/arch/mips/include/asm/hugetlb.h +++ b/arch/mips/include/asm/hugetlb.h @@ -63,12 +63,6 @@ static inline int huge_pte_none(pte_t pte) return !val || (val == (unsigned long)invalid_pte_table); } -static inline void huge_ptep_set_wrprotect(struct mm_struct *mm, - unsigned long addr, pte_t *ptep) -{ - ptep_set_wrprotect(mm, addr, ptep); -} - static inline int huge_ptep_set_access_flags(struct vm_area_struct *vma, unsigned long addr, pte_t *ptep, pte_t pte, diff --git a/arch/parisc/include/asm/hugetlb.h b/arch/parisc/include/asm/hugetlb.h index fb7e0fd858a3..9c3950ca2974 100644 --- a/arch/parisc/include/asm/hugetlb.h +++ b/arch/parisc/include/asm/hugetlb.h @@ -39,6 +39,7 @@ static inline void huge_ptep_clear_flush(struct vm_area_struct *vma, { } +#define __HAVE_ARCH_HUGE_PTEP_SET_WRPROTECT void huge_ptep_set_wrprotect(struct mm_struct *mm, unsigned long addr, pte_t *ptep); diff --git a/arch/powerpc/include/asm/book3s/32/pgtable.h b/arch/powerpc/include/asm/book3s/32/pgtable.h index 02f5acd7ccc4..d2cd1d0226e9 100644 --- a/arch/powerpc/include/asm/book3s/32/pgtable.h +++ b/arch/powerpc/include/asm/book3s/32/pgtable.h @@ -228,6 +228,8 @@ static inline void ptep_set_wrprotect(struct mm_struct *mm, unsigned long addr, { pte_update(ptep, (_PAGE_RW | _PAGE_HWWRITE), _PAGE_RO); } + +#define __HAVE_ARCH_HUGE_PTEP_SET_WRPROTECT static inline void huge_ptep_set_wrprotect(struct mm_struct *mm, unsigned long addr, pte_t *ptep) { diff --git a/arch/powerpc/include/asm/book3s/64/pgtable.h b/arch/powerpc/include/asm/book3s/64/pgtable.h index 42aafba7a308..7d957f7c47cd 100644 --- a/arch/powerpc/include/asm/book3s/64/pgtable.h +++ b/arch/powerpc/include/asm/book3s/64/pgtable.h @@ -451,6 +451,7 @@ static inline void ptep_set_wrprotect(struct mm_struct *mm, unsigned long addr, pte_update(mm, addr, ptep, 0, _PAGE_PRIVILEGED, 0); } +#define __HAVE_ARCH_HUGE_PTEP_SET_WRPROTECT static inline void huge_ptep_set_wrprotect(struct mm_struct *mm, unsigned long addr, pte_t *ptep) { diff --git a/arch/powerpc/include/asm/nohash/32/pgtable.h b/arch/powerpc/include/asm/nohash/32/pgtable.h index 7c46a98cc7f4..f39e200d9591 100644 --- a/arch/powerpc/include/asm/nohash/32/pgtable.h +++ b/arch/powerpc/include/asm/nohash/32/pgtable.h @@ -249,6 +249,8 @@ static inline void ptep_set_wrprotect(struct mm_struct *mm, unsigned long addr, { pte_update(ptep, (_PAGE_RW | _PAGE_HWWRITE), _PAGE_RO); } + +#define __HAVE_ARCH_HUGE_PTEP_SET_WRPROTECT static inline void huge_ptep_set_wrprotect(struct mm_struct *mm, unsigned long addr, pte_t *ptep) { diff --git a/arch/powerpc/include/asm/nohash/64/pgtable.h b/arch/powerpc/include/asm/nohash/64/pgtable.h index dd0c7236208f..69fbf7e9b4db 100644 --- a/arch/powerpc/include/asm/nohash/64/pgtable.h +++ b/arch/powerpc/include/asm/nohash/64/pgtable.h @@ -238,6 +238,7 @@ static inline void ptep_set_wrprotect(struct mm_struct *mm, unsigned long addr, pte_update(mm, addr, ptep, _PAGE_RW, 0, 0); } +#define __HAVE_ARCH_HUGE_PTEP_SET_WRPROTECT static inline void huge_ptep_set_wrprotect(struct mm_struct *mm, unsigned long addr, pte_t *ptep) { diff --git a/arch/sh/include/asm/hugetlb.h b/arch/sh/include/asm/hugetlb.h index f1bbd255ee43..8df4004977b9 100644 --- a/arch/sh/include/asm/hugetlb.h +++ b/arch/sh/include/asm/hugetlb.h @@ -32,12 +32,6 @@ static inline void huge_ptep_clear_flush(struct vm_area_struct *vma, { } -static inline void huge_ptep_set_wrprotect(struct mm_struct *mm, - unsigned long addr, pte_t *ptep) -{ - ptep_set_wrprotect(mm, addr, ptep); -} - static inline int huge_ptep_set_access_flags(struct vm_area_struct *vma, unsigned long addr, pte_t *ptep, pte_t pte, int dirty) diff --git a/arch/sparc/include/asm/hugetlb.h b/arch/sparc/include/asm/hugetlb.h index 2101ea217f33..c41754a113f3 100644 --- a/arch/sparc/include/asm/hugetlb.h +++ b/arch/sparc/include/asm/hugetlb.h @@ -32,6 +32,7 @@ static inline void huge_ptep_clear_flush(struct vm_area_struct *vma, { } +#define __HAVE_ARCH_HUGE_PTEP_SET_WRPROTECT static inline void huge_ptep_set_wrprotect(struct mm_struct *mm, unsigned long addr, pte_t *ptep) { diff --git a/arch/x86/include/asm/hugetlb.h b/arch/x86/include/asm/hugetlb.h index 59c056adb3c9..a3f781f7a264 100644 --- a/arch/x86/include/asm/hugetlb.h +++ b/arch/x86/include/asm/hugetlb.h @@ -13,12 +13,6 @@ static inline int is_hugepage_only_range(struct mm_struct *mm, return 0; } -static inline void huge_ptep_set_wrprotect(struct mm_struct *mm, - unsigned long addr, pte_t *ptep) -{ - ptep_set_wrprotect(mm, addr, ptep); -} - static inline int huge_ptep_set_access_flags(struct vm_area_struct *vma, unsigned long addr, pte_t *ptep, pte_t pte, int dirty) diff --git a/include/asm-generic/hugetlb.h b/include/asm-generic/hugetlb.h index 6c0c8b0c71e0..9b9039845278 100644 --- a/include/asm-generic/hugetlb.h +++ b/include/asm-generic/hugetlb.h @@ -102,4 +102,12 @@ static inline int prepare_hugepage_range(struct file *file, } #endif +#ifndef __HAVE_ARCH_HUGE_PTEP_SET_WRPROTECT +static inline void huge_ptep_set_wrprotect(struct mm_struct *mm, + unsigned long addr, pte_t *ptep) +{ + ptep_set_wrprotect(mm, addr, ptep); +} +#endif + #endif /* _ASM_GENERIC_HUGETLB_H */