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Date: Mon, 6 Aug 2018 17:57:08 +0000
From: Alexandre Ghiti <alex@...ti.fr>
To: linux-mm@...ck.org, mike.kravetz@...cle.com, linux@...linux.org.uk,
catalin.marinas@....com, will.deacon@....com, tony.luck@...el.com,
fenghua.yu@...el.com, ralf@...ux-mips.org, paul.burton@...s.com,
jhogan@...nel.org, jejb@...isc-linux.org, deller@....de,
benh@...nel.crashing.org, paulus@...ba.org, mpe@...erman.id.au,
ysato@...rs.sourceforge.jp, dalias@...c.org, davem@...emloft.net,
tglx@...utronix.de, mingo@...hat.com, hpa@...or.com,
x86@...nel.org, arnd@...db.de,
linux-arm-kernel@...ts.infradead.org, linux-kernel@...r.kernel.org,
linux-ia64@...r.kernel.org, linux-mips@...ux-mips.org,
linux-parisc@...r.kernel.org, linuxppc-dev@...ts.ozlabs.org,
linux-sh@...r.kernel.org, sparclinux@...r.kernel.org,
linux-arch@...r.kernel.org
Cc: Alexandre Ghiti <alex@...ti.fr>
Subject: [PATCH v6 08/11] 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.
Signed-off-by: Alexandre Ghiti <alex@...ti.fr>
Tested-by: Helge Deller <deller@....de> # parisc
Acked-by: Catalin Marinas <catalin.marinas@....com> # arm64
Acked-by: Paul Burton <paul.burton@...s.com> # MIPS parts
Reviewed-by: Luiz Capitulino <lcapitulino@...hat.com>
Reviewed-by: Mike Kravetz <mike.kravetz@...cle.com>
---
arch/arm/include/asm/hugetlb.h | 11 -----------
arch/arm64/include/asm/hugetlb.h | 11 -----------
arch/ia64/include/asm/hugetlb.h | 1 +
arch/mips/include/asm/hugetlb.h | 1 +
arch/parisc/include/asm/hugetlb.h | 1 +
arch/powerpc/include/asm/hugetlb.h | 15 ---------------
arch/sh/include/asm/hugetlb.h | 1 +
arch/sparc/include/asm/hugetlb.h | 16 ----------------
arch/x86/include/asm/hugetlb.h | 15 ---------------
include/asm-generic/hugetlb.h | 15 +++++++++++++++
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 7123599089c6..69c14ecac133 100644
--- a/arch/powerpc/include/asm/hugetlb.h
+++ b/arch/powerpc/include/asm/hugetlb.h
@@ -117,21 +117,6 @@ 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 */
--
2.16.2
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