| lists.openwall.net | lists / announce owl-users owl-dev john-users john-dev passwdqc-users yescrypt popa3d-users / oss-security kernel-hardening musl sabotage tlsify passwords / crypt-dev xvendor / Bugtraq Full-Disclosure linux-kernel linux-netdev linux-ext4 linux-hardening linux-cve-announce PHC | |
|
Open Source and information security mailing list archives
| ||
|
Message-ID: <8a8f0608-ff9a-04ea-7c63-2b3bb99b7966@oracle.com>
Date: Thu, 26 Jul 2018 12:05:17 -0700
From: Mike Kravetz <mike.kravetz@...cle.com>
To: Alexandre Ghiti <alex@...ti.fr>, linux@...linux.org.uk,
catalin.marinas@....com, will.deacon@....com, tony.luck@...el.com,
fenghua.yu@...el.com, ralf@...ux-mips.org, paul.burton@...s.com,
jhogan@...nel.org, jejb@...isc-linux.org, deller@....de,
benh@...nel.crashing.org, paulus@...ba.org, mpe@...erman.id.au,
ysato@...rs.sourceforge.jp, dalias@...c.org, davem@...emloft.net,
tglx@...utronix.de, mingo@...hat.com, hpa@...or.com,
x86@...nel.org, arnd@...db.de,
linux-arm-kernel@...ts.infradead.org, linux-kernel@...r.kernel.org,
linux-ia64@...r.kernel.org, linux-mips@...ux-mips.org,
linux-parisc@...r.kernel.org, linuxppc-dev@...ts.ozlabs.org,
linux-sh@...r.kernel.org, sparclinux@...r.kernel.org,
linux-arch@...r.kernel.org
Subject: Re: [PATCH v4 07/11] hugetlb: Introduce generic version of
huge_pte_wrprotect
On 07/05/2018 04:07 AM, Alexandre Ghiti wrote:
> arm, arm64, ia64, mips, parisc, powerpc, sh, sparc, x86
> architectures use the same version of huge_pte_wrprotect, so move
> this generic implementation into asm-generic/hugetlb.h.
>
Reviewed-by: Mike Kravetz <mike.kravetz@...cle.com>
--
Mike Kravetz
> Signed-off-by: Alexandre Ghiti <alex@...ti.fr>
> ---
> arch/arm/include/asm/hugetlb.h | 5 -----
> arch/arm64/include/asm/hugetlb.h | 5 -----
> arch/ia64/include/asm/hugetlb.h | 5 -----
> arch/mips/include/asm/hugetlb.h | 5 -----
> arch/parisc/include/asm/hugetlb.h | 5 -----
> arch/powerpc/include/asm/hugetlb.h | 5 -----
> arch/sh/include/asm/hugetlb.h | 5 -----
> arch/sparc/include/asm/hugetlb.h | 5 -----
> arch/x86/include/asm/hugetlb.h | 5 -----
> include/asm-generic/hugetlb.h | 7 +++++++
> 10 files changed, 7 insertions(+), 45 deletions(-)
>
> diff --git a/arch/arm/include/asm/hugetlb.h b/arch/arm/include/asm/hugetlb.h
> index 3d2ce4dbc145..1e718a626ef9 100644
> --- a/arch/arm/include/asm/hugetlb.h
> +++ b/arch/arm/include/asm/hugetlb.h
> @@ -43,11 +43,6 @@ static inline int prepare_hugepage_range(struct file *file,
> return 0;
> }
>
> -static inline pte_t huge_pte_wrprotect(pte_t pte)
> -{
> - return pte_wrprotect(pte);
> -}
> -
> static inline void arch_clear_hugepage_flags(struct page *page)
> {
> clear_bit(PG_dcache_clean, &page->flags);
> diff --git a/arch/arm64/include/asm/hugetlb.h b/arch/arm64/include/asm/hugetlb.h
> index 49247c6f94db..1fd64ebf0cd7 100644
> --- a/arch/arm64/include/asm/hugetlb.h
> +++ b/arch/arm64/include/asm/hugetlb.h
> @@ -42,11 +42,6 @@ static inline int prepare_hugepage_range(struct file *file,
> return 0;
> }
>
> -static inline pte_t huge_pte_wrprotect(pte_t pte)
> -{
> - return pte_wrprotect(pte);
> -}
> -
> static inline void arch_clear_hugepage_flags(struct page *page)
> {
> clear_bit(PG_dcache_clean, &page->flags);
> diff --git a/arch/ia64/include/asm/hugetlb.h b/arch/ia64/include/asm/hugetlb.h
> index bf573500b3c4..82fe3d7a38d9 100644
> --- a/arch/ia64/include/asm/hugetlb.h
> +++ b/arch/ia64/include/asm/hugetlb.h
> @@ -26,11 +26,6 @@ static inline void huge_ptep_clear_flush(struct vm_area_struct *vma,
> {
> }
>
> -static inline pte_t huge_pte_wrprotect(pte_t pte)
> -{
> - return pte_wrprotect(pte);
> -}
> -
> static inline void huge_ptep_set_wrprotect(struct mm_struct *mm,
> unsigned long addr, pte_t *ptep)
> {
> diff --git a/arch/mips/include/asm/hugetlb.h b/arch/mips/include/asm/hugetlb.h
> index 1c9c4531376c..b3d6bb53ee6e 100644
> --- a/arch/mips/include/asm/hugetlb.h
> +++ b/arch/mips/include/asm/hugetlb.h
> @@ -62,11 +62,6 @@ static inline int huge_pte_none(pte_t pte)
> return !val || (val == (unsigned long)invalid_pte_table);
> }
>
> -static inline pte_t huge_pte_wrprotect(pte_t pte)
> -{
> - return pte_wrprotect(pte);
> -}
> -
> static inline void huge_ptep_set_wrprotect(struct mm_struct *mm,
> unsigned long addr, pte_t *ptep)
> {
> diff --git a/arch/parisc/include/asm/hugetlb.h b/arch/parisc/include/asm/hugetlb.h
> index c09d8c74553c..5a102d7251e4 100644
> --- a/arch/parisc/include/asm/hugetlb.h
> +++ b/arch/parisc/include/asm/hugetlb.h
> @@ -38,11 +38,6 @@ static inline void huge_ptep_clear_flush(struct vm_area_struct *vma,
> {
> }
>
> -static inline pte_t huge_pte_wrprotect(pte_t pte)
> -{
> - return pte_wrprotect(pte);
> -}
> -
> void huge_ptep_set_wrprotect(struct mm_struct *mm,
> unsigned long addr, pte_t *ptep);
>
> diff --git a/arch/powerpc/include/asm/hugetlb.h b/arch/powerpc/include/asm/hugetlb.h
> index 3562d46585ba..7123599089c6 100644
> --- a/arch/powerpc/include/asm/hugetlb.h
> +++ b/arch/powerpc/include/asm/hugetlb.h
> @@ -152,11 +152,6 @@ static inline void huge_ptep_clear_flush(struct vm_area_struct *vma,
> flush_hugetlb_page(vma, addr);
> }
>
> -static inline pte_t huge_pte_wrprotect(pte_t pte)
> -{
> - return pte_wrprotect(pte);
> -}
> -
> extern 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/sh/include/asm/hugetlb.h b/arch/sh/include/asm/hugetlb.h
> index a9f8266f33cf..54f65094efe6 100644
> --- a/arch/sh/include/asm/hugetlb.h
> +++ b/arch/sh/include/asm/hugetlb.h
> @@ -31,11 +31,6 @@ static inline void huge_ptep_clear_flush(struct vm_area_struct *vma,
> {
> }
>
> -static inline pte_t huge_pte_wrprotect(pte_t pte)
> -{
> - return pte_wrprotect(pte);
> -}
> -
> static inline void huge_ptep_set_wrprotect(struct mm_struct *mm,
> unsigned long addr, pte_t *ptep)
> {
> diff --git a/arch/sparc/include/asm/hugetlb.h b/arch/sparc/include/asm/hugetlb.h
> index 11115bbd712e..f661362376e0 100644
> --- a/arch/sparc/include/asm/hugetlb.h
> +++ b/arch/sparc/include/asm/hugetlb.h
> @@ -48,11 +48,6 @@ static inline void huge_ptep_clear_flush(struct vm_area_struct *vma,
> {
> }
>
> -static inline pte_t huge_pte_wrprotect(pte_t pte)
> -{
> - return pte_wrprotect(pte);
> -}
> -
> 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 c5fdc53b6e41..19668672ab37 100644
> --- a/arch/x86/include/asm/hugetlb.h
> +++ b/arch/x86/include/asm/hugetlb.h
> @@ -27,11 +27,6 @@ static inline int prepare_hugepage_range(struct file *file,
> return 0;
> }
>
> -static inline pte_t huge_pte_wrprotect(pte_t pte)
> -{
> - return pte_wrprotect(pte);
> -}
> -
> static inline void huge_ptep_set_wrprotect(struct mm_struct *mm,
> unsigned long addr, pte_t *ptep)
> {
> diff --git a/include/asm-generic/hugetlb.h b/include/asm-generic/hugetlb.h
> index 2fc3d68424e9..cd9697672b79 100644
> --- a/include/asm-generic/hugetlb.h
> +++ b/include/asm-generic/hugetlb.h
> @@ -80,4 +80,11 @@ static inline int huge_pte_none(pte_t pte)
> }
> #endif
>
> +#ifndef __HAVE_ARCH_HUGE_PTE_WRPROTECT
> +static inline pte_t huge_pte_wrprotect(pte_t pte)
> +{
> + return pte_wrprotect(pte);
> +}
> +#endif
> +
> #endif /* _ASM_GENERIC_HUGETLB_H */
>
Powered by blists - more mailing lists