hugetlb: introduce generic version of huge_ptep_set_access_flags()
authorAlexandre Ghiti <alex@ghiti.fr>
Fri, 26 Oct 2018 22:08:39 +0000 (15:08 -0700)
committerLinus Torvalds <torvalds@linux-foundation.org>
Fri, 26 Oct 2018 23:26:34 +0000 (16:26 -0700)
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>
arch/arm/include/asm/hugetlb-3level.h
arch/arm64/include/asm/hugetlb.h
arch/ia64/include/asm/hugetlb.h
arch/mips/include/asm/hugetlb.h
arch/parisc/include/asm/hugetlb.h
arch/powerpc/include/asm/hugetlb.h
arch/sh/include/asm/hugetlb.h
arch/sparc/include/asm/hugetlb.h
arch/x86/include/asm/hugetlb.h
include/asm-generic/hugetlb.h

index 8247cd6..54e4b09 100644 (file)
@@ -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 */
index f4f69ae..80887ab 100644 (file)
@@ -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);
index 49d1f79..e9b4275 100644 (file)
@@ -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;
index 3dcf5de..120adc3 100644 (file)
@@ -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,
index 9c3950c..165b4e5 100644 (file)
@@ -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);
index 2a90f38..d4d9cf6 100644 (file)
@@ -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);
index 8df4004..c87195a 100644 (file)
@@ -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;
index c41754a..028a146 100644 (file)
@@ -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)
index a3f781f..574d42e 100644 (file)
@@ -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;
index 9b90398..f3c99a0 100644 (file)
@@ -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 */