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authorAlexandre Ghiti <alex@ghiti.fr>2018-10-26 15:08:31 -0700
committerLinus Torvalds <torvalds@linux-foundation.org>2018-10-26 16:26:34 -0700
commit78d6e4e8ea8700fb3973661eb3774f632bab5842 (patch)
tree4fffd557f5c14921e951bfde300d1a695d6b89a6
parentc4916a008665a6650834a736f80559a7f90e5857 (diff)
hugetlb: introduce generic version of prepare_hugepage_range
arm, arm64, powerpc, sparc, x86 architectures use the same version of prepare_hugepage_range, so move this generic implementation into asm-generic/hugetlb.h. Link: http://lkml.kernel.org/r/20180920060358.16606-9-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>
-rw-r--r--arch/arm/include/asm/hugetlb.h11
-rw-r--r--arch/arm64/include/asm/hugetlb.h11
-rw-r--r--arch/ia64/include/asm/hugetlb.h1
-rw-r--r--arch/mips/include/asm/hugetlb.h1
-rw-r--r--arch/parisc/include/asm/hugetlb.h1
-rw-r--r--arch/powerpc/include/asm/hugetlb.h15
-rw-r--r--arch/sh/include/asm/hugetlb.h1
-rw-r--r--arch/sparc/include/asm/hugetlb.h16
-rw-r--r--arch/x86/include/asm/hugetlb.h15
-rw-r--r--include/asm-generic/hugetlb.h15
10 files changed, 19 insertions, 68 deletions
diff --git a/arch/arm/include/asm/hugetlb.h b/arch/arm/include/asm/hugetlb.h
index 9ca14227eeb7..3fcef21ff2c2 100644
--- a/arch/arm/include/asm/hugetlb.h
+++ b/arch/arm/include/asm/hugetlb.h
@@ -33,17 +33,6 @@ static inline int is_hugepage_only_range(struct mm_struct *mm,
return 0;
}
-static inline int prepare_hugepage_range(struct file *file,
- unsigned long addr, unsigned long len)
-{
- struct hstate *h = hstate_file(file);
- if (len & ~huge_page_mask(h))
- return -EINVAL;
- if (addr & ~huge_page_mask(h))
- return -EINVAL;
- return 0;
-}
-
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 1fd64ebf0cd7..3e7f6e69b28d 100644
--- a/arch/arm64/include/asm/hugetlb.h
+++ b/arch/arm64/include/asm/hugetlb.h
@@ -31,17 +31,6 @@ static inline int is_hugepage_only_range(struct mm_struct *mm,
return 0;
}
-static inline int prepare_hugepage_range(struct file *file,
- unsigned long addr, unsigned long len)
-{
- struct hstate *h = hstate_file(file);
- if (len & ~huge_page_mask(h))
- return -EINVAL;
- if (addr & ~huge_page_mask(h))
- return -EINVAL;
- return 0;
-}
-
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 82fe3d7a38d9..cbe296271030 100644
--- a/arch/ia64/include/asm/hugetlb.h
+++ b/arch/ia64/include/asm/hugetlb.h
@@ -9,6 +9,7 @@ void hugetlb_free_pgd_range(struct mmu_gather *tlb, unsigned long addr,
unsigned long end, unsigned long floor,
unsigned long ceiling);
+#define __HAVE_ARCH_PREPARE_HUGEPAGE_RANGE
int prepare_hugepage_range(struct file *file,
unsigned long addr, unsigned long len);
diff --git a/arch/mips/include/asm/hugetlb.h b/arch/mips/include/asm/hugetlb.h
index b3d6bb53ee6e..6ff2531cfb1d 100644
--- a/arch/mips/include/asm/hugetlb.h
+++ b/arch/mips/include/asm/hugetlb.h
@@ -18,6 +18,7 @@ static inline int is_hugepage_only_range(struct mm_struct *mm,
return 0;
}
+#define __HAVE_ARCH_PREPARE_HUGEPAGE_RANGE
static inline int prepare_hugepage_range(struct file *file,
unsigned long addr,
unsigned long len)
diff --git a/arch/parisc/include/asm/hugetlb.h b/arch/parisc/include/asm/hugetlb.h
index 5a102d7251e4..fb7e0fd858a3 100644
--- a/arch/parisc/include/asm/hugetlb.h
+++ b/arch/parisc/include/asm/hugetlb.h
@@ -22,6 +22,7 @@ static inline int is_hugepage_only_range(struct mm_struct *mm,
* If the arch doesn't supply something else, assume that hugepage
* size aligned regions are ok without further preparation.
*/
+#define __HAVE_ARCH_PREPARE_HUGEPAGE_RANGE
static inline int prepare_hugepage_range(struct file *file,
unsigned long addr, unsigned long len)
{
diff --git a/arch/powerpc/include/asm/hugetlb.h b/arch/powerpc/include/asm/hugetlb.h
index b5b57b309564..2a90f387880a 100644
--- a/arch/powerpc/include/asm/hugetlb.h
+++ b/arch/powerpc/include/asm/hugetlb.h
@@ -114,21 +114,6 @@ void hugetlb_free_pgd_range(struct mmu_gather *tlb, unsigned long addr,
unsigned long end, unsigned long floor,
unsigned long ceiling);
-/*
- * If the arch doesn't supply something else, assume that hugepage
- * size aligned regions are ok without further preparation.
- */
-static inline int prepare_hugepage_range(struct file *file,
- unsigned long addr, unsigned long len)
-{
- struct hstate *h = hstate_file(file);
- if (len & ~huge_page_mask(h))
- return -EINVAL;
- if (addr & ~huge_page_mask(h))
- return -EINVAL;
- return 0;
-}
-
#define __HAVE_ARCH_HUGE_PTEP_GET_AND_CLEAR
static inline pte_t huge_ptep_get_and_clear(struct mm_struct *mm,
unsigned long addr, pte_t *ptep)
diff --git a/arch/sh/include/asm/hugetlb.h b/arch/sh/include/asm/hugetlb.h
index 54f65094efe6..f1bbd255ee43 100644
--- a/arch/sh/include/asm/hugetlb.h
+++ b/arch/sh/include/asm/hugetlb.h
@@ -15,6 +15,7 @@ static inline int is_hugepage_only_range(struct mm_struct *mm,
* If the arch doesn't supply something else, assume that hugepage
* size aligned regions are ok without further preparation.
*/
+#define __HAVE_ARCH_PREPARE_HUGEPAGE_RANGE
static inline int prepare_hugepage_range(struct file *file,
unsigned long addr, unsigned long len)
{
diff --git a/arch/sparc/include/asm/hugetlb.h b/arch/sparc/include/asm/hugetlb.h
index f661362376e0..2101ea217f33 100644
--- a/arch/sparc/include/asm/hugetlb.h
+++ b/arch/sparc/include/asm/hugetlb.h
@@ -26,22 +26,6 @@ static inline int is_hugepage_only_range(struct mm_struct *mm,
return 0;
}
-/*
- * If the arch doesn't supply something else, assume that hugepage
- * size aligned regions are ok without further preparation.
- */
-static inline int prepare_hugepage_range(struct file *file,
- unsigned long addr, unsigned long len)
-{
- struct hstate *h = hstate_file(file);
-
- if (len & ~huge_page_mask(h))
- return -EINVAL;
- if (addr & ~huge_page_mask(h))
- return -EINVAL;
- return 0;
-}
-
#define __HAVE_ARCH_HUGE_PTEP_CLEAR_FLUSH
static inline void huge_ptep_clear_flush(struct vm_area_struct *vma,
unsigned long addr, pte_t *ptep)
diff --git a/arch/x86/include/asm/hugetlb.h b/arch/x86/include/asm/hugetlb.h
index 3cd3a2c9840e..59c056adb3c9 100644
--- a/arch/x86/include/asm/hugetlb.h
+++ b/arch/x86/include/asm/hugetlb.h
@@ -13,21 +13,6 @@ static inline int is_hugepage_only_range(struct mm_struct *mm,
return 0;
}
-/*
- * If the arch doesn't supply something else, assume that hugepage
- * size aligned regions are ok without further preparation.
- */
-static inline int prepare_hugepage_range(struct file *file,
- unsigned long addr, unsigned long len)
-{
- struct hstate *h = hstate_file(file);
- if (len & ~huge_page_mask(h))
- return -EINVAL;
- if (addr & ~huge_page_mask(h))
- return -EINVAL;
- return 0;
-}
-
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 cd9697672b79..6c0c8b0c71e0 100644
--- a/include/asm-generic/hugetlb.h
+++ b/include/asm-generic/hugetlb.h
@@ -87,4 +87,19 @@ static inline pte_t huge_pte_wrprotect(pte_t pte)
}
#endif
+#ifndef __HAVE_ARCH_PREPARE_HUGEPAGE_RANGE
+static inline int prepare_hugepage_range(struct file *file,
+ unsigned long addr, unsigned long len)
+{
+ struct hstate *h = hstate_file(file);
+
+ if (len & ~huge_page_mask(h))
+ return -EINVAL;
+ if (addr & ~huge_page_mask(h))
+ return -EINVAL;
+
+ return 0;
+}
+#endif
+
#endif /* _ASM_GENERIC_HUGETLB_H */