Commit a4d83853 authored by Alexandre Ghiti's avatar Alexandre Ghiti Committed by Linus Torvalds

hugetlb: introduce generic version of huge_ptep_get_and_clear()

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

Link: http://lkml.kernel.org/r/20180920060358.16606-5-alex@ghiti.frSigned-off-by: default avatarAlexandre Ghiti <alex@ghiti.fr>
Reviewed-by: default avatarLuiz Capitulino <lcapitulino@redhat.com>
Reviewed-by: default avatarMike 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: default avatarAndrew Morton <akpm@linux-foundation.org>
Signed-off-by: default avatarLinus Torvalds <torvalds@linux-foundation.org>
parent cea685d5
...@@ -49,12 +49,6 @@ static inline void huge_ptep_set_wrprotect(struct mm_struct *mm, ...@@ -49,12 +49,6 @@ static inline void huge_ptep_set_wrprotect(struct mm_struct *mm,
ptep_set_wrprotect(mm, addr, ptep); ptep_set_wrprotect(mm, addr, ptep);
} }
static inline pte_t huge_ptep_get_and_clear(struct mm_struct *mm,
unsigned long addr, pte_t *ptep)
{
return ptep_get_and_clear(mm, addr, ptep);
}
static inline int huge_ptep_set_access_flags(struct vm_area_struct *vma, static inline int huge_ptep_set_access_flags(struct vm_area_struct *vma,
unsigned long addr, pte_t *ptep, unsigned long addr, pte_t *ptep,
pte_t pte, int dirty) pte_t pte, int dirty)
......
...@@ -66,6 +66,7 @@ extern void set_huge_pte_at(struct mm_struct *mm, unsigned long addr, ...@@ -66,6 +66,7 @@ extern void set_huge_pte_at(struct mm_struct *mm, unsigned long addr,
extern int huge_ptep_set_access_flags(struct vm_area_struct *vma, extern int huge_ptep_set_access_flags(struct vm_area_struct *vma,
unsigned long addr, pte_t *ptep, unsigned long addr, pte_t *ptep,
pte_t pte, int dirty); pte_t pte, int dirty);
#define __HAVE_ARCH_HUGE_PTEP_GET_AND_CLEAR
extern pte_t huge_ptep_get_and_clear(struct mm_struct *mm, extern pte_t huge_ptep_get_and_clear(struct mm_struct *mm,
unsigned long addr, pte_t *ptep); unsigned long addr, pte_t *ptep);
extern void huge_ptep_set_wrprotect(struct mm_struct *mm, extern void huge_ptep_set_wrprotect(struct mm_struct *mm,
......
...@@ -20,12 +20,6 @@ static inline int is_hugepage_only_range(struct mm_struct *mm, ...@@ -20,12 +20,6 @@ static inline int is_hugepage_only_range(struct mm_struct *mm,
REGION_NUMBER((addr)+(len)-1) == RGN_HPAGE); REGION_NUMBER((addr)+(len)-1) == RGN_HPAGE);
} }
static inline pte_t huge_ptep_get_and_clear(struct mm_struct *mm,
unsigned long addr, pte_t *ptep)
{
return ptep_get_and_clear(mm, addr, ptep);
}
static inline void huge_ptep_clear_flush(struct vm_area_struct *vma, static inline void huge_ptep_clear_flush(struct vm_area_struct *vma,
unsigned long addr, pte_t *ptep) unsigned long addr, pte_t *ptep)
{ {
......
...@@ -36,6 +36,7 @@ static inline int prepare_hugepage_range(struct file *file, ...@@ -36,6 +36,7 @@ static inline int prepare_hugepage_range(struct file *file,
return 0; return 0;
} }
#define __HAVE_ARCH_HUGE_PTEP_GET_AND_CLEAR
static inline pte_t huge_ptep_get_and_clear(struct mm_struct *mm, static inline pte_t huge_ptep_get_and_clear(struct mm_struct *mm,
unsigned long addr, pte_t *ptep) unsigned long addr, pte_t *ptep)
{ {
......
...@@ -8,6 +8,7 @@ ...@@ -8,6 +8,7 @@
void set_huge_pte_at(struct mm_struct *mm, unsigned long addr, void set_huge_pte_at(struct mm_struct *mm, unsigned long addr,
pte_t *ptep, pte_t pte); pte_t *ptep, pte_t pte);
#define __HAVE_ARCH_HUGE_PTEP_GET_AND_CLEAR
pte_t huge_ptep_get_and_clear(struct mm_struct *mm, unsigned long addr, pte_t huge_ptep_get_and_clear(struct mm_struct *mm, unsigned long addr,
pte_t *ptep); pte_t *ptep);
......
...@@ -129,6 +129,7 @@ static inline int prepare_hugepage_range(struct file *file, ...@@ -129,6 +129,7 @@ static inline int prepare_hugepage_range(struct file *file,
return 0; return 0;
} }
#define __HAVE_ARCH_HUGE_PTEP_GET_AND_CLEAR
static inline pte_t huge_ptep_get_and_clear(struct mm_struct *mm, static inline pte_t huge_ptep_get_and_clear(struct mm_struct *mm,
unsigned long addr, pte_t *ptep) unsigned long addr, pte_t *ptep)
{ {
......
...@@ -25,12 +25,6 @@ static inline int prepare_hugepage_range(struct file *file, ...@@ -25,12 +25,6 @@ static inline int prepare_hugepage_range(struct file *file,
return 0; return 0;
} }
static inline pte_t huge_ptep_get_and_clear(struct mm_struct *mm,
unsigned long addr, pte_t *ptep)
{
return ptep_get_and_clear(mm, addr, ptep);
}
static inline void huge_ptep_clear_flush(struct vm_area_struct *vma, static inline void huge_ptep_clear_flush(struct vm_area_struct *vma,
unsigned long addr, pte_t *ptep) unsigned long addr, pte_t *ptep)
{ {
......
...@@ -16,6 +16,7 @@ extern struct pud_huge_patch_entry __pud_huge_patch, __pud_huge_patch_end; ...@@ -16,6 +16,7 @@ extern struct pud_huge_patch_entry __pud_huge_patch, __pud_huge_patch_end;
void set_huge_pte_at(struct mm_struct *mm, unsigned long addr, void set_huge_pte_at(struct mm_struct *mm, unsigned long addr,
pte_t *ptep, pte_t pte); pte_t *ptep, pte_t pte);
#define __HAVE_ARCH_HUGE_PTEP_GET_AND_CLEAR
pte_t huge_ptep_get_and_clear(struct mm_struct *mm, unsigned long addr, pte_t huge_ptep_get_and_clear(struct mm_struct *mm, unsigned long addr,
pte_t *ptep); pte_t *ptep);
......
...@@ -28,12 +28,6 @@ static inline int prepare_hugepage_range(struct file *file, ...@@ -28,12 +28,6 @@ static inline int prepare_hugepage_range(struct file *file,
return 0; return 0;
} }
static inline pte_t huge_ptep_get_and_clear(struct mm_struct *mm,
unsigned long addr, pte_t *ptep)
{
return ptep_get_and_clear(mm, addr, ptep);
}
static inline void huge_ptep_clear_flush(struct vm_area_struct *vma, static inline void huge_ptep_clear_flush(struct vm_area_struct *vma,
unsigned long addr, pte_t *ptep) unsigned long addr, pte_t *ptep)
{ {
......
...@@ -57,4 +57,12 @@ static inline void set_huge_pte_at(struct mm_struct *mm, unsigned long addr, ...@@ -57,4 +57,12 @@ static inline void set_huge_pte_at(struct mm_struct *mm, unsigned long addr,
} }
#endif #endif
#ifndef __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)
{
return ptep_get_and_clear(mm, addr, ptep);
}
#endif
#endif /* _ASM_GENERIC_HUGETLB_H */ #endif /* _ASM_GENERIC_HUGETLB_H */
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