From 1e5f50fc9d0a653c910df2291f245a8fa7beed11 Mon Sep 17 00:00:00 2001
From: Alexandre Ghiti <alex@ghiti.fr>
Date: Fri, 26 Oct 2018 15:08:03 -0700
Subject: [PATCH] hugetlb: introduce generic version of hugetlb_free_pgd_range
arm, arm64, mips, parisc, sh, x86 architectures use the same version of
hugetlb_free_pgd_range, so move this generic implementation into
asm-generic/hugetlb.h.
Link: http://lkml.kernel.org/r/20180920060358.16606-3-alex@ghiti.fr
Signed-off-by: Alexandre Ghiti <alex@ghiti.fr>
Reviewed-by: Luiz Capitulino <lcapitulino@redhat.com>
Reviewed-by: Mike Kravetz <mike.kravetz@oracle.com>
Tested-by: Helge Deller <deller@gmx.de> [parisc]
Acked-by: Catalin Marinas <catalin.marinas@arm.com> [arm64]
Acked-by: Paul Burton <paul.burton@mips.com> [MIPS]
Acked-by: Ingo Molnar <mingo@kernel.org> [x86]
Cc: Arnd Bergmann <arnd@arndb.de>
Cc: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Cc: David S. Miller <davem@davemloft.net>
Cc: Fenghua Yu <fenghua.yu@intel.com>
Cc: Heiko Carstens <heiko.carstens@de.ibm.com>
Cc: H. Peter Anvin <hpa@zytor.com>
Cc: Ingo Molnar <mingo@redhat.com>
Cc: James E.J. Bottomley <jejb@parisc-linux.org>
Cc: James Hogan <jhogan@kernel.org>
Cc: Martin Schwidefsky <schwidefsky@de.ibm.com>
Cc: Michael Ellerman <mpe@ellerman.id.au>
Cc: Paul Mackerras <paulus@samba.org>
Cc: Ralf Baechle <ralf@linux-mips.org>
Cc: Rich Felker <dalias@libc.org>
Cc: Russell King <linux@armlinux.org.uk>
Cc: Thomas Gleixner <tglx@linutronix.de>
Cc: Tony Luck <tony.luck@intel.com>
Cc: Will Deacon <will.deacon@arm.com>
Cc: Yoshinori Sato <ysato@users.sourceforge.jp>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
---
arch/arm/include/asm/hugetlb.h | 9 ---------
arch/arm64/include/asm/hugetlb.h | 10 ----------
arch/ia64/include/asm/hugetlb.h | 5 +++--
arch/mips/include/asm/hugetlb.h | 13 ++-----------
arch/parisc/include/asm/hugetlb.h | 12 ++----------
arch/powerpc/include/asm/hugetlb.h | 4 +++-
arch/sh/include/asm/hugetlb.h | 12 ++----------
arch/sparc/include/asm/hugetlb.h | 4 +++-
arch/x86/include/asm/hugetlb.h | 8 --------
include/asm-generic/hugetlb.h | 11 +++++++++++
10 files changed, 26 insertions(+), 62 deletions(-)
diff --git a/arch/arm/include/asm/hugetlb.h b/arch/arm/include/asm/hugetlb.h
index 7d26f6c4f0f5e..537660891f9fb 100644
--- a/arch/arm/include/asm/hugetlb.h
+++ b/arch/arm/include/asm/hugetlb.h
@@ -27,15 +27,6 @@
#include <asm/hugetlb-3level.h>
-static inline void hugetlb_free_pgd_range(struct mmu_gather *tlb,
- unsigned long addr, unsigned long end,
- unsigned long floor,
- unsigned long ceiling)
-{
- free_pgd_range(tlb, addr, end, floor, ceiling);
-}
-
-
static inline int is_hugepage_only_range(struct mm_struct *mm,
unsigned long addr, unsigned long len)
{
diff --git a/arch/arm64/include/asm/hugetlb.h b/arch/arm64/include/asm/hugetlb.h
index 3fcf14663dfa2..4af1a800a9000 100644
--- a/arch/arm64/include/asm/hugetlb.h
+++ b/arch/arm64/include/asm/hugetlb.h
@@ -25,16 +25,6 @@ static inline pte_t huge_ptep_get(pte_t *ptep)
return READ_ONCE(*ptep);
}
-
-
-static inline void hugetlb_free_pgd_range(struct mmu_gather *tlb,
- unsigned long addr, unsigned long end,
- unsigned long floor,
- unsigned long ceiling)
-{
- free_pgd_range(tlb, addr, end, floor, ceiling);
-}
-
static inline int is_hugepage_only_range(struct mm_struct *mm,
unsigned long addr, unsigned long len)
{
diff --git a/arch/ia64/include/asm/hugetlb.h b/arch/ia64/include/asm/hugetlb.h
index 74d2a5540aaf9..afe9fa4d969b0 100644
--- a/arch/ia64/include/asm/hugetlb.h
+++ b/arch/ia64/include/asm/hugetlb.h
@@ -3,9 +3,8 @@
#define _ASM_IA64_HUGETLB_H
#include <asm/page.h>
-#include <asm-generic/hugetlb.h>
-
+#define __HAVE_ARCH_HUGETLB_FREE_PGD_RANGE
void hugetlb_free_pgd_range(struct mmu_gather *tlb, unsigned long addr,
unsigned long end, unsigned long floor,
unsigned long ceiling);
@@ -70,4 +69,6 @@ static inline void arch_clear_hugepage_flags(struct page *page)
{
}
+#include <asm-generic/hugetlb.h>
+
#endif /* _ASM_IA64_HUGETLB_H */
diff --git a/arch/mips/include/asm/hugetlb.h b/arch/mips/include/asm/hugetlb.h
index 982bc06853302..53764050243e7 100644
--- a/arch/mips/include/asm/hugetlb.h
+++ b/arch/mips/include/asm/hugetlb.h
@@ -10,8 +10,6 @@
#define __ASM_HUGETLB_H
#include <asm/page.h>
-#include <asm-generic/hugetlb.h>
-
static inline int is_hugepage_only_range(struct mm_struct *mm,
unsigned long addr,
@@ -38,15 +36,6 @@ static inline int prepare_hugepage_range(struct file *file,
return 0;
}
-static inline void hugetlb_free_pgd_range(struct mmu_gather *tlb,
- unsigned long addr,
- unsigned long end,
- unsigned long floor,
- unsigned long ceiling)
-{
- free_pgd_range(tlb, addr, end, floor, ceiling);
-}
-
static inline void set_huge_pte_at(struct mm_struct *mm, unsigned long addr,
pte_t *ptep, pte_t pte)
{
@@ -114,4 +103,6 @@ static inline void arch_clear_hugepage_flags(struct page *page)
{
}
+#include <asm-generic/hugetlb.h>
+
#endif /* __ASM_HUGETLB_H */
diff --git a/arch/parisc/include/asm/hugetlb.h b/arch/parisc/include/asm/hugetlb.h
index 58e0f46204265..28c23b68d38d7 100644
--- a/arch/parisc/include/asm/hugetlb.h
+++ b/arch/parisc/include/asm/hugetlb.h
@@ -3,8 +3,6 @@
#define _ASM_PARISC64_HUGETLB_H
#include <asm/page.h>
-#include <asm-generic/hugetlb.h>
-
void set_huge_pte_at(struct mm_struct *mm, unsigned long addr,
pte_t *ptep, pte_t pte);
@@ -32,14 +30,6 @@ static inline int prepare_hugepage_range(struct file *file,
return 0;
}
-static inline void hugetlb_free_pgd_range(struct mmu_gather *tlb,
- unsigned long addr, unsigned long end,
- unsigned long floor,
- unsigned long ceiling)
-{
- free_pgd_range(tlb, addr, end, floor, ceiling);
-}
-
static inline void huge_ptep_clear_flush(struct vm_area_struct *vma,
unsigned long addr, pte_t *ptep)
{
@@ -71,4 +61,6 @@ static inline void arch_clear_hugepage_flags(struct page *page)
{
}
+#include <asm-generic/hugetlb.h>
+
#endif /* _ASM_PARISC64_HUGETLB_H */
diff --git a/arch/powerpc/include/asm/hugetlb.h b/arch/powerpc/include/asm/hugetlb.h
index 2d00cc5300833..2ab028b73a43e 100644
--- a/arch/powerpc/include/asm/hugetlb.h
+++ b/arch/powerpc/include/asm/hugetlb.h
@@ -4,7 +4,6 @@
#ifdef CONFIG_HUGETLB_PAGE
#include <asm/page.h>
-#include <asm-generic/hugetlb.h>
extern struct kmem_cache *hugepte_cache;
@@ -110,6 +109,7 @@ static inline void flush_hugetlb_page(struct vm_area_struct *vma,
void flush_hugetlb_page(struct vm_area_struct *vma, unsigned long vmaddr);
#endif
+#define __HAVE_ARCH_HUGETLB_FREE_PGD_RANGE
void hugetlb_free_pgd_range(struct mmu_gather *tlb, unsigned long addr,
unsigned long end, unsigned long floor,
unsigned long ceiling);
@@ -176,6 +176,8 @@ static inline void arch_clear_hugepage_flags(struct page *page)
{
}
+#include <asm-generic/hugetlb.h>
+
#else /* ! CONFIG_HUGETLB_PAGE */
static inline void flush_hugetlb_page(struct vm_area_struct *vma,
unsigned long vmaddr)
diff --git a/arch/sh/include/asm/hugetlb.h b/arch/sh/include/asm/hugetlb.h
index 735939c0f513a..f6a51b609409f 100644
--- a/arch/sh/include/asm/hugetlb.h
+++ b/arch/sh/include/asm/hugetlb.h
@@ -4,8 +4,6 @@
#include <asm/cacheflush.h>
#include <asm/page.h>
-#include <asm-generic/hugetlb.h>
-
static inline int is_hugepage_only_range(struct mm_struct *mm,
unsigned long addr,
@@ -27,14 +25,6 @@ static inline int prepare_hugepage_range(struct file *file,
return 0;
}
-static inline void hugetlb_free_pgd_range(struct mmu_gather *tlb,
- unsigned long addr, unsigned long end,
- unsigned long floor,
- unsigned long ceiling)
-{
- free_pgd_range(tlb, addr, end, floor, ceiling);
-}
-
static inline void set_huge_pte_at(struct mm_struct *mm, unsigned long addr,
pte_t *ptep, pte_t pte)
{
@@ -85,4 +75,6 @@ static inline void arch_clear_hugepage_flags(struct page *page)
clear_bit(PG_dcache_clean, &page->flags);
}
+#include <asm-generic/hugetlb.h>
+
#endif /* _ASM_SH_HUGETLB_H */
diff --git a/arch/sparc/include/asm/hugetlb.h b/arch/sparc/include/asm/hugetlb.h
index 300557c66698f..59d89b52ccb7a 100644
--- a/arch/sparc/include/asm/hugetlb.h
+++ b/arch/sparc/include/asm/hugetlb.h
@@ -3,7 +3,6 @@
#define _ASM_SPARC64_HUGETLB_H
#include <asm/page.h>
-#include <asm-generic/hugetlb.h>
#ifdef CONFIG_HUGETLB_PAGE
struct pud_huge_patch_entry {
@@ -84,8 +83,11 @@ static inline void arch_clear_hugepage_flags(struct page *page)
{
}
+#define __HAVE_ARCH_HUGETLB_FREE_PGD_RANGE
void hugetlb_free_pgd_range(struct mmu_gather *tlb, unsigned long addr,
unsigned long end, unsigned long floor,
unsigned long ceiling);
+#include <asm-generic/hugetlb.h>
+
#endif /* _ASM_SPARC64_HUGETLB_H */
diff --git a/arch/x86/include/asm/hugetlb.h b/arch/x86/include/asm/hugetlb.h
index 5ed826da5e071..398da3b3414cb 100644
--- a/arch/x86/include/asm/hugetlb.h
+++ b/arch/x86/include/asm/hugetlb.h
@@ -28,14 +28,6 @@ static inline int prepare_hugepage_range(struct file *file,
return 0;
}
-static inline void hugetlb_free_pgd_range(struct mmu_gather *tlb,
- unsigned long addr, unsigned long end,
- unsigned long floor,
- unsigned long ceiling)
-{
- free_pgd_range(tlb, addr, end, floor, ceiling);
-}
-
static inline void set_huge_pte_at(struct mm_struct *mm, unsigned long addr,
pte_t *ptep, pte_t pte)
{
diff --git a/include/asm-generic/hugetlb.h b/include/asm-generic/hugetlb.h
index 3da7cff523603..c697ca9dda186 100644
--- a/include/asm-generic/hugetlb.h
+++ b/include/asm-generic/hugetlb.h
@@ -40,4 +40,15 @@ static inline void huge_pte_clear(struct mm_struct *mm, unsigned long addr,
}
#endif
+#ifndef __HAVE_ARCH_HUGETLB_FREE_PGD_RANGE
+static inline void hugetlb_free_pgd_range(struct mmu_gather *tlb,
+ unsigned long addr, unsigned long end,
+ unsigned long floor, unsigned long ceiling)
+{
+ free_pgd_range(tlb, addr, end, floor, ceiling);
+}
+
+
+#endif
+
#endif /* _ASM_GENERIC_HUGETLB_H */
--
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