hugetlb: introduce generic version of huge_ptep_set_access_flags()

arm, ia64, sh, x86 architectures use the same version
of huge_ptep_set_access_flags, so move this generic implementation
into asm-generic/hugetlb.h.

Link: http://lkml.kernel.org/r/20180920060358.16606-11-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>

diff --git a/arch/arm/include/asm/hugetlb-3level.h b/arch/arm/include/asm/hugetlb-3level.h
index 8247cd6a2ac67348d7c70f7ec70e9511d7e2d9e8..54e4b097b1f5da79b7f27f2a0acfc8d9127f2892 100644 (file)
--- a/arch/arm/include/asm/hugetlb-3level.h
+++ b/arch/arm/include/asm/hugetlb-3level.h
@@ -37,11 +37,4 @@ static inline pte_t huge_ptep_get(pte_t *ptep)
        return retval;
 }
 
-static inline int huge_ptep_set_access_flags(struct vm_area_struct *vma,
-                                            unsigned long addr, pte_t *ptep,
-                                            pte_t pte, int dirty)
-{
-       return ptep_set_access_flags(vma, addr, ptep, pte, dirty);
-}
-
 #endif /* _ASM_ARM_HUGETLB_3LEVEL_H */

diff --git a/arch/arm64/include/asm/hugetlb.h b/arch/arm64/include/asm/hugetlb.h
index f4f69ae5466e8a822a2ccb6640d95756abe82029..80887abcef7fed10b2700dba7aaaad9c07c43446 100644 (file)
--- a/arch/arm64/include/asm/hugetlb.h
+++ b/arch/arm64/include/asm/hugetlb.h
@@ -42,6 +42,7 @@ extern pte_t arch_make_huge_pte(pte_t entry, struct vm_area_struct *vma,
 #define __HAVE_ARCH_HUGE_SET_HUGE_PTE_AT
 extern void set_huge_pte_at(struct mm_struct *mm, unsigned long addr,
                            pte_t *ptep, pte_t pte);
+#define __HAVE_ARCH_HUGE_PTEP_SET_ACCESS_FLAGS
 extern int huge_ptep_set_access_flags(struct vm_area_struct *vma,
                                      unsigned long addr, pte_t *ptep,
                                      pte_t pte, int dirty);

diff --git a/arch/ia64/include/asm/hugetlb.h b/arch/ia64/include/asm/hugetlb.h
index 49d1f7949f3a58a0c0af308be882de8520ad52a5..e9b42750fdf5a2d54260fa1271e303ce8a97db2c 100644 (file)
--- a/arch/ia64/include/asm/hugetlb.h
+++ b/arch/ia64/include/asm/hugetlb.h
@@ -27,13 +27,6 @@ static inline void huge_ptep_clear_flush(struct vm_area_struct *vma,
 {
 }
 
-static inline int huge_ptep_set_access_flags(struct vm_area_struct *vma,
-                                            unsigned long addr, pte_t *ptep,
-                                            pte_t pte, int dirty)
-{
-       return ptep_set_access_flags(vma, addr, ptep, pte, dirty);
-}
-
 static inline pte_t huge_ptep_get(pte_t *ptep)
 {
        return *ptep;

diff --git a/arch/mips/include/asm/hugetlb.h b/arch/mips/include/asm/hugetlb.h
index 3dcf5debf8c4ac1aff7c4bc1ea4173eae12baa15..120adc3b2ffd48a3b0967b356602edad2eeea62a 100644 (file)
--- a/arch/mips/include/asm/hugetlb.h
+++ b/arch/mips/include/asm/hugetlb.h
@@ -63,6 +63,7 @@ static inline int huge_pte_none(pte_t pte)
        return !val || (val == (unsigned long)invalid_pte_table);
 }
 
+#define __HAVE_ARCH_HUGE_PTEP_SET_ACCESS_FLAGS
 static inline int huge_ptep_set_access_flags(struct vm_area_struct *vma,
                                             unsigned long addr,
                                             pte_t *ptep, pte_t pte,

diff --git a/arch/parisc/include/asm/hugetlb.h b/arch/parisc/include/asm/hugetlb.h
index 9c3950ca29746fc08f8ec46233ad159e0d0ce272..165b4e5a6f3258cdc23c6bf47c56882866cb0a72 100644 (file)
--- a/arch/parisc/include/asm/hugetlb.h
+++ b/arch/parisc/include/asm/hugetlb.h
@@ -43,6 +43,7 @@ static inline void huge_ptep_clear_flush(struct vm_area_struct *vma,
 void huge_ptep_set_wrprotect(struct mm_struct *mm,
                                           unsigned long addr, pte_t *ptep);
 
+#define __HAVE_ARCH_HUGE_PTEP_SET_ACCESS_FLAGS
 int huge_ptep_set_access_flags(struct vm_area_struct *vma,
                                             unsigned long addr, pte_t *ptep,
                                             pte_t pte, int dirty);

diff --git a/arch/powerpc/include/asm/hugetlb.h b/arch/powerpc/include/asm/hugetlb.h
index 2a90f387880a4dd39a000418fd92fd17931eed62..d4d9cf6cb8460c032c4c66786eb28c744b772852 100644 (file)
--- a/arch/powerpc/include/asm/hugetlb.h
+++ b/arch/powerpc/include/asm/hugetlb.h
@@ -134,6 +134,7 @@ static inline void huge_ptep_clear_flush(struct vm_area_struct *vma,
        flush_hugetlb_page(vma, addr);
 }
 
+#define __HAVE_ARCH_HUGE_PTEP_SET_ACCESS_FLAGS
 extern int huge_ptep_set_access_flags(struct vm_area_struct *vma,
                                      unsigned long addr, pte_t *ptep,
                                      pte_t pte, int dirty);

diff --git a/arch/sh/include/asm/hugetlb.h b/arch/sh/include/asm/hugetlb.h
index 8df4004977b9c0a9ce663632566fc6167eb20eed..c87195ae0cfa4824e5b3ba4d773ba0ddebe7bb5c 100644 (file)
--- a/arch/sh/include/asm/hugetlb.h
+++ b/arch/sh/include/asm/hugetlb.h
@@ -32,13 +32,6 @@ static inline void huge_ptep_clear_flush(struct vm_area_struct *vma,
 {
 }
 
-static inline int huge_ptep_set_access_flags(struct vm_area_struct *vma,
-                                            unsigned long addr, pte_t *ptep,
-                                            pte_t pte, int dirty)
-{
-       return ptep_set_access_flags(vma, addr, ptep, pte, dirty);
-}
-
 static inline pte_t huge_ptep_get(pte_t *ptep)
 {
        return *ptep;

diff --git a/arch/sparc/include/asm/hugetlb.h b/arch/sparc/include/asm/hugetlb.h
index c41754a113f360a9b3aa4047269a1deec372abd2..028a1465fbe79ac779504b8da3dbff6ce526633a 100644 (file)
--- a/arch/sparc/include/asm/hugetlb.h
+++ b/arch/sparc/include/asm/hugetlb.h
@@ -40,6 +40,7 @@ static inline void huge_ptep_set_wrprotect(struct mm_struct *mm,
        set_huge_pte_at(mm, addr, ptep, pte_wrprotect(old_pte));
 }
 
+#define __HAVE_ARCH_HUGE_PTEP_SET_ACCESS_FLAGS
 static inline int huge_ptep_set_access_flags(struct vm_area_struct *vma,
                                             unsigned long addr, pte_t *ptep,
                                             pte_t pte, int dirty)

diff --git a/arch/x86/include/asm/hugetlb.h b/arch/x86/include/asm/hugetlb.h
index a3f781f7a264e6d6d8a6c81a18a351f7d7dfbea0..574d42eb081eb80683fdc189a65b59e58bbdfec6 100644 (file)
--- a/arch/x86/include/asm/hugetlb.h
+++ b/arch/x86/include/asm/hugetlb.h
@@ -13,13 +13,6 @@ static inline int is_hugepage_only_range(struct mm_struct *mm,
        return 0;
 }
 
-static inline int huge_ptep_set_access_flags(struct vm_area_struct *vma,
-                                            unsigned long addr, pte_t *ptep,
-                                            pte_t pte, int dirty)
-{
-       return ptep_set_access_flags(vma, addr, ptep, pte, dirty);
-}
-
 static inline pte_t huge_ptep_get(pte_t *ptep)
 {
        return *ptep;

diff --git a/include/asm-generic/hugetlb.h b/include/asm-generic/hugetlb.h
index 9b9039845278479119c996538f3d133250b64d9f..f3c99a03ee83bcaaf68cbe92ef5edc2936654b0e 100644 (file)
--- a/include/asm-generic/hugetlb.h
+++ b/include/asm-generic/hugetlb.h
@@ -110,4 +110,13 @@ static inline void huge_ptep_set_wrprotect(struct mm_struct *mm,
 }
 #endif
 
+#ifndef __HAVE_ARCH_HUGE_PTEP_SET_ACCESS_FLAGS
+static inline int huge_ptep_set_access_flags(struct vm_area_struct *vma,
+               unsigned long addr, pte_t *ptep,
+               pte_t pte, int dirty)
+{
+       return ptep_set_access_flags(vma, addr, ptep, pte, dirty);
+}
+#endif
+
 #endif /* _ASM_GENERIC_HUGETLB_H */