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From: Yu-cheng Yu <yu-cheng.yu@intel.com> To: x86@kernel.org, "H. Peter Anvin" <hpa@zytor.com>, Thomas Gleixner <tglx@linutronix.de>, Ingo Molnar <mingo@redhat.com>, linux-kernel@vger.kernel.org, linux-doc@vger.kernel.org, linux-mm@kvack.org, linux-arch@vger.kernel.org, linux-api@vger.kernel.org, Arnd Bergmann <arnd@arndb.de>, Andy Lutomirski <luto@kernel.org>, Balbir Singh <bsingharora@gmail.com>, Borislav Petkov <bp@alien8.de>, Cyrill Gorcunov <gorcunov@gmail.com>, Dave Hansen <dave.hansen@linux.intel.com>, Eugene Syromiatnikov <esyr@redhat.com>, Florian Weimer <fweimer@redhat.com>, "H.J. Lu" <hjl.tools@gmail.com>, Jann Horn <jannh@google.com>, Jonathan Corbet <corbet@lwn.net>, Kees Cook <keescook@chromium.org>, Mike Kravetz <mike.kravetz@oracle.com>, Nadav Amit <nadav.amit@gmail.com>, Oleg Nesterov <oleg@redhat.com>, Pavel Machek <pavel@ucw.cz>, Peter Zijlstra <peterz@infradead.org>, Randy Dunlap <rdunlap@infradead.org>, "Ravi V. Shankar" <ravi.v.shankar@intel.com>, Dave Martin <Dave.Martin@arm.com>, Weijiang Yang <weijiang.yang@intel.com>, Pengfei Xu <pengfei.xu@intel.com>, Haitao Huang <haitao.huang@intel.com>, Rick P Edgecombe <rick.p.edgecombe@intel.com> Cc: Yu-cheng Yu <yu-cheng.yu@intel.com>, "Kirill A . Shutemov" <kirill.shutemov@linux.intel.com> Subject: [PATCH v30 08/32] x86/mm: Move pmd_write(), pud_write() up in the file Date: Mon, 30 Aug 2021 11:15:04 -0700 [thread overview] Message-ID: <20210830181528.1569-9-yu-cheng.yu@intel.com> (raw) In-Reply-To: <20210830181528.1569-1-yu-cheng.yu@intel.com> To prepare the introduction of _PAGE_COW, move pmd_write() and pud_write() up in the file, so that they can be used by other helpers below. No functional changes. Signed-off-by: Yu-cheng Yu <yu-cheng.yu@intel.com> Reviewed-by: Kirill A. Shutemov <kirill.shutemov@linux.intel.com> --- arch/x86/include/asm/pgtable.h | 24 ++++++++++++------------ 1 file changed, 12 insertions(+), 12 deletions(-) diff --git a/arch/x86/include/asm/pgtable.h b/arch/x86/include/asm/pgtable.h index 448cd01eb3ec..0ddeda0bc0c0 100644 --- a/arch/x86/include/asm/pgtable.h +++ b/arch/x86/include/asm/pgtable.h @@ -156,6 +156,18 @@ static inline int pte_write(pte_t pte) return pte_flags(pte) & _PAGE_RW; } +#define pmd_write pmd_write +static inline int pmd_write(pmd_t pmd) +{ + return pmd_flags(pmd) & _PAGE_RW; +} + +#define pud_write pud_write +static inline int pud_write(pud_t pud) +{ + return pud_flags(pud) & _PAGE_RW; +} + static inline int pte_huge(pte_t pte) { return pte_flags(pte) & _PAGE_PSE; @@ -1099,12 +1111,6 @@ extern int pmdp_clear_flush_young(struct vm_area_struct *vma, unsigned long address, pmd_t *pmdp); -#define pmd_write pmd_write -static inline int pmd_write(pmd_t pmd) -{ - return pmd_flags(pmd) & _PAGE_RW; -} - #define __HAVE_ARCH_PMDP_HUGE_GET_AND_CLEAR static inline pmd_t pmdp_huge_get_and_clear(struct mm_struct *mm, unsigned long addr, pmd_t *pmdp) @@ -1126,12 +1132,6 @@ static inline void pmdp_set_wrprotect(struct mm_struct *mm, clear_bit(_PAGE_BIT_RW, (unsigned long *)pmdp); } -#define pud_write pud_write -static inline int pud_write(pud_t pud) -{ - return pud_flags(pud) & _PAGE_RW; -} - #ifndef pmdp_establish #define pmdp_establish pmdp_establish static inline pmd_t pmdp_establish(struct vm_area_struct *vma, -- 2.21.0
next prev parent reply other threads:[~2021-08-30 18:18 UTC|newest] Thread overview: 34+ messages / expand[flat|nested] mbox.gz Atom feed top 2021-08-30 18:14 [PATCH v30 00/32] Control-flow Enforcement: Shadow Stack Yu-cheng Yu 2021-08-30 18:14 ` [PATCH v30 01/32] Documentation/x86: Add CET description Yu-cheng Yu 2021-10-05 14:26 ` Dave Hansen 2021-08-30 18:14 ` [PATCH v30 02/32] x86/cet/shstk: Add Kconfig option for Shadow Stack Yu-cheng Yu 2021-08-30 18:14 ` [PATCH v30 03/32] x86/cpufeatures: Add CET CPU feature flags for Control-flow Enforcement Technology (CET) Yu-cheng Yu 2021-08-30 18:15 ` [PATCH v30 04/32] x86/cpufeatures: Introduce CPU setup and option parsing for CET Yu-cheng Yu 2021-08-30 18:15 ` [PATCH v30 05/32] x86/fpu/xstate: Introduce CET MSR and XSAVES supervisor states Yu-cheng Yu 2021-08-30 18:15 ` [PATCH v30 06/32] x86/cet: Add control-protection fault handler Yu-cheng Yu 2021-08-30 18:15 ` [PATCH v30 07/32] x86/mm: Remove _PAGE_DIRTY from kernel RO pages Yu-cheng Yu 2021-08-30 18:15 ` Yu-cheng Yu [this message] 2021-08-30 18:15 ` [PATCH v30 09/32] x86/mm: Introduce _PAGE_COW Yu-cheng Yu 2021-08-30 18:15 ` [PATCH v30 10/32] drm/i915/gvt: Change _PAGE_DIRTY to _PAGE_DIRTY_BITS Yu-cheng Yu 2021-08-30 18:15 ` [PATCH v30 11/32] x86/mm: Update pte_modify for _PAGE_COW Yu-cheng Yu 2021-08-30 18:15 ` [PATCH v30 12/32] x86/mm: Update ptep_set_wrprotect() and pmdp_set_wrprotect() for transition from _PAGE_DIRTY to _PAGE_COW Yu-cheng Yu 2021-08-30 18:15 ` [PATCH v30 13/32] mm: Move VM_UFFD_MINOR_BIT from 37 to 38 Yu-cheng Yu 2021-08-30 18:15 ` [PATCH v30 14/32] mm: Introduce VM_SHADOW_STACK for shadow stack memory Yu-cheng Yu 2021-08-30 18:15 ` [PATCH v30 15/32] x86/mm: Check Shadow Stack page fault errors Yu-cheng Yu 2021-08-30 18:15 ` [PATCH v30 16/32] x86/mm: Update maybe_mkwrite() for shadow stack Yu-cheng Yu 2021-08-30 18:15 ` [PATCH v30 17/32] mm: Fixup places that call pte_mkwrite() directly Yu-cheng Yu 2021-08-30 18:15 ` [PATCH v30 18/32] mm: Add guard pages around a shadow stack Yu-cheng Yu 2021-08-30 18:15 ` [PATCH v30 19/32] mm/mmap: Add shadow stack pages to memory accounting Yu-cheng Yu 2021-08-30 18:15 ` [PATCH v30 20/32] mm: Update can_follow_write_pte() for shadow stack Yu-cheng Yu 2021-08-30 18:15 ` [PATCH v30 21/32] mm/mprotect: Exclude shadow stack from preserve_write Yu-cheng Yu 2021-08-30 18:15 ` [PATCH v30 22/32] mm: Re-introduce vm_flags to do_mmap() Yu-cheng Yu 2021-08-30 18:15 ` [PATCH v30 23/32] x86/cet/shstk: Add user-mode shadow stack support Yu-cheng Yu 2021-08-30 18:15 ` [PATCH v30 24/32] x86/process: Change copy_thread() argument 'arg' to 'stack_size' Yu-cheng Yu 2021-08-30 18:15 ` [PATCH v30 25/32] x86/cet/shstk: Handle thread shadow stack Yu-cheng Yu 2021-08-30 18:15 ` [PATCH v30 26/32] x86/cet/shstk: Introduce shadow stack token setup/verify routines Yu-cheng Yu 2021-08-30 18:15 ` [PATCH v30 27/32] x86/cet/shstk: Handle signals for shadow stack Yu-cheng Yu 2021-08-30 18:15 ` [PATCH v30 28/32] ELF: Introduce arch_setup_elf_property() Yu-cheng Yu 2021-08-30 18:15 ` [PATCH v30 29/32] x86/cet/shstk: Add arch_prctl functions for shadow stack Yu-cheng Yu 2021-08-30 18:15 ` [PATCH v30 30/32] mm: Move arch_calc_vm_prot_bits() to arch/x86/include/asm/mman.h Yu-cheng Yu 2021-08-30 18:15 ` [PATCH v30 31/32] mm: Update arch_validate_flags() to test vma anonymous Yu-cheng Yu 2021-08-30 18:15 ` [PATCH v30 32/32] mm: Introduce PROT_SHADOW_STACK for shadow stack Yu-cheng Yu
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