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| author | Rick Edgecombe <rick.p.edgecombe@intel.com> | 2023-06-13 02:10:35 +0200 |
|---|---|---|
| committer | Rick Edgecombe <rick.p.edgecombe@intel.com> | 2023-07-11 23:12:19 +0200 |
| commit | a956efc09b106173c6c85da7e3bb6e0f452a5681 (patch) | |
| tree | 67253ec7555f45cbf3e5c6e85b35c5b502febcc5 /arch/x86/include/asm/pgtable.h | |
| parent | x86/cpufeatures: Add CPU feature flags for shadow stacks (diff) | |
| download | linux-a956efc09b106173c6c85da7e3bb6e0f452a5681.tar.xz linux-a956efc09b106173c6c85da7e3bb6e0f452a5681.zip | |
x86/mm: Move pmd_write(), pud_write() up in the file
To prepare the introduction of _PAGE_SAVED_DIRTY, move pmd_write() and
pud_write() up in the file, so that they can be used by other
helpers below. No functional changes.
Co-developed-by: Yu-cheng Yu <yu-cheng.yu@intel.com>
Signed-off-by: Yu-cheng Yu <yu-cheng.yu@intel.com>
Signed-off-by: Rick Edgecombe <rick.p.edgecombe@intel.com>
Signed-off-by: Dave Hansen <dave.hansen@linux.intel.com>
Reviewed-by: Borislav Petkov (AMD) <bp@alien8.de>
Reviewed-by: Kees Cook <keescook@chromium.org>
Reviewed-by: Kirill A. Shutemov <kirill.shutemov@linux.intel.com>
Acked-by: Mike Rapoport (IBM) <rppt@kernel.org>
Tested-by: Pengfei Xu <pengfei.xu@intel.com>
Tested-by: John Allen <john.allen@amd.com>
Tested-by: Kees Cook <keescook@chromium.org>
Link: https://lore.kernel.org/all/20230613001108.3040476-10-rick.p.edgecombe%40intel.com
Diffstat (limited to 'arch/x86/include/asm/pgtable.h')
| -rw-r--r-- | arch/x86/include/asm/pgtable.h | 24 |
1 files changed, 12 insertions, 12 deletions
diff --git a/arch/x86/include/asm/pgtable.h b/arch/x86/include/asm/pgtable.h index 0aa295cc6277..5f6e4ac1aad8 100644 --- a/arch/x86/include/asm/pgtable.h +++ b/arch/x86/include/asm/pgtable.h @@ -161,6 +161,18 @@ 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; @@ -1121,12 +1133,6 @@ 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) @@ -1156,12 +1162,6 @@ 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, |