From: Dave Hansen <dave.hansen@linux.intel.com>
To: linux-kernel@vger.kernel.org
Cc: x86@kernel.org,tglx@linutronix.de,bp@alien8.de,joro@8bytes.org,luto@kernel.org,peterz@infradead.org,kirill.shutemov@linux.intel.com,rick.p.edgecombe@intel.com,jgross@suse.com,Dave
Hansen <dave.hansen@linux.intel.com>
Subject: [PATCH 8/8] x86/mm: Remove now unused SHARED_KERNEL_PMD
Date: Mon, 14 Apr 2025 10:32:44 -0700 [thread overview]
Message-ID: <20250414173244.1125BEC3@davehans-spike.ostc.intel.com> (raw)
In-Reply-To: <20250414173232.32444FF6@davehans-spike.ostc.intel.com>
From: Dave Hansen <dave.hansen@linux.intel.com>
All the users of SHARED_KERNEL_PMD are gone. Zap it.
Signed-off-by: Dave Hansen <dave.hansen@linux.intel.com>
---
b/arch/x86/include/asm/pgtable-2level_types.h | 2 --
b/arch/x86/include/asm/pgtable-3level_types.h | 2 --
b/arch/x86/include/asm/pgtable_64_types.h | 2 --
3 files changed, 6 deletions(-)
diff -puN arch/x86/include/asm/pgtable-2level_types.h~zap-SHARED_KERNEL_PMD arch/x86/include/asm/pgtable-2level_types.h
--- a/arch/x86/include/asm/pgtable-2level_types.h~zap-SHARED_KERNEL_PMD 2025-04-14 09:00:36.905759325 -0700
+++ b/arch/x86/include/asm/pgtable-2level_types.h 2025-04-14 09:00:36.912759582 -0700
@@ -18,8 +18,6 @@ typedef union {
} pte_t;
#endif /* !__ASSEMBLER__ */
-#define SHARED_KERNEL_PMD 0
-
#define ARCH_PAGE_TABLE_SYNC_MASK PGTBL_PMD_MODIFIED
/*
diff -puN arch/x86/include/asm/pgtable-3level_types.h~zap-SHARED_KERNEL_PMD arch/x86/include/asm/pgtable-3level_types.h
--- a/arch/x86/include/asm/pgtable-3level_types.h~zap-SHARED_KERNEL_PMD 2025-04-14 09:00:36.908759435 -0700
+++ b/arch/x86/include/asm/pgtable-3level_types.h 2025-04-14 09:00:36.913759618 -0700
@@ -27,8 +27,6 @@ typedef union {
} pmd_t;
#endif /* !__ASSEMBLER__ */
-#define SHARED_KERNEL_PMD (!static_cpu_has(X86_FEATURE_PTI))
-
#define ARCH_PAGE_TABLE_SYNC_MASK PGTBL_PMD_MODIFIED
/*
diff -puN arch/x86/include/asm/pgtable_64_types.h~zap-SHARED_KERNEL_PMD arch/x86/include/asm/pgtable_64_types.h
--- a/arch/x86/include/asm/pgtable_64_types.h~zap-SHARED_KERNEL_PMD 2025-04-14 09:00:36.910759508 -0700
+++ b/arch/x86/include/asm/pgtable_64_types.h 2025-04-14 09:00:36.913759618 -0700
@@ -46,8 +46,6 @@ extern unsigned int ptrs_per_p4d;
#endif /* !__ASSEMBLER__ */
-#define SHARED_KERNEL_PMD 0
-
#ifdef CONFIG_X86_5LEVEL
/*
_
prev parent reply other threads:[~2025-04-14 17:34 UTC|newest]
Thread overview: 13+ messages / expand[flat|nested] mbox.gz Atom feed top
2025-04-14 17:32 [PATCH 0/8] x86/mm: Simplify PAE page table handling Dave Hansen
2025-04-14 17:32 ` [PATCH 1/8] x86/mm: Always allocate a whole page for PAE PGDs Dave Hansen
2025-04-14 17:32 ` [PATCH 2/8] x86/mm: Always "broadcast" PMD setting operations Dave Hansen
2025-04-15 8:25 ` Kirill A. Shutemov
2025-04-15 14:10 ` Dave Hansen
2025-04-14 17:32 ` [PATCH 3/8] x86/mm: Always tell core mm to sync kernel mappings Dave Hansen
2025-04-15 8:28 ` Kirill A. Shutemov
2025-04-15 14:12 ` Dave Hansen
2025-04-14 17:32 ` [PATCH 4/8] x86/mm: Simplify PAE PGD sharing macros Dave Hansen
2025-04-14 17:32 ` [PATCH 5/8] x86/mm: Fix up comments around PMD preallocation Dave Hansen
2025-04-14 17:32 ` [PATCH 6/8] x86/mm: Preallocate all PAE page tables Dave Hansen
2025-04-14 17:32 ` [PATCH 7/8] x86/mm: Remove duplicated PMD preallocation macro Dave Hansen
2025-04-14 17:32 ` Dave Hansen [this message]
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