Commit 8e581d43 authored by Alexandre Ghiti's avatar Alexandre Ghiti Committed by Linus Torvalds
Browse files

hugetlb: introduce generic version of huge_ptep_set_wrprotect() 

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

Link: http://lkml.kernel.org/r/20180920060358.16606-10-alex@ghiti.fr


Signed-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 78d6e4e8

arch/arm/include/asm/hugetlb-3level.h

+0 −6
Original line number Diff line number Diff line
@@ -37,12 +37,6 @@ static inline pte_t huge_ptep_get(pte_t *ptep) 
	return retval;

}



static inline void huge_ptep_set_wrprotect(struct mm_struct *mm,

					   unsigned long addr, pte_t *ptep)

{

	ptep_set_wrprotect(mm, addr, ptep);

}



static inline int huge_ptep_set_access_flags(struct vm_area_struct *vma,

					     unsigned long addr, pte_t *ptep,

					     pte_t pte, int dirty)

arch/arm64/include/asm/hugetlb.h

+1 −0
Original line number Diff line number Diff line
@@ -48,6 +48,7 @@ extern int huge_ptep_set_access_flags(struct vm_area_struct *vma, 
#define __HAVE_ARCH_HUGE_PTEP_GET_AND_CLEAR

extern pte_t huge_ptep_get_and_clear(struct mm_struct *mm,

				     unsigned long addr, pte_t *ptep);

#define __HAVE_ARCH_HUGE_PTEP_SET_WRPROTECT

extern void huge_ptep_set_wrprotect(struct mm_struct *mm,

				    unsigned long addr, pte_t *ptep);

#define __HAVE_ARCH_HUGE_PTEP_CLEAR_FLUSH

arch/ia64/include/asm/hugetlb.h

+0 −6
Original line number Diff line number Diff line
@@ -27,12 +27,6 @@ static inline void huge_ptep_clear_flush(struct vm_area_struct *vma, 
{

}



static inline void huge_ptep_set_wrprotect(struct mm_struct *mm,

					   unsigned long addr, pte_t *ptep)

{

	ptep_set_wrprotect(mm, addr, ptep);

}



static inline int huge_ptep_set_access_flags(struct vm_area_struct *vma,

					     unsigned long addr, pte_t *ptep,

					     pte_t pte, int dirty)

arch/mips/include/asm/hugetlb.h

+0 −6
Original line number Diff line number Diff line
@@ -63,12 +63,6 @@ static inline int huge_pte_none(pte_t pte) 
	return !val || (val == (unsigned long)invalid_pte_table);

}



static inline void huge_ptep_set_wrprotect(struct mm_struct *mm,

					   unsigned long addr, pte_t *ptep)

{

	ptep_set_wrprotect(mm, addr, ptep);

}



static inline int huge_ptep_set_access_flags(struct vm_area_struct *vma,

					     unsigned long addr,

					     pte_t *ptep, pte_t pte,

arch/parisc/include/asm/hugetlb.h

+1 −0
Original line number Diff line number Diff line
@@ -39,6 +39,7 @@ static inline void huge_ptep_clear_flush(struct vm_area_struct *vma, 
{

}



#define __HAVE_ARCH_HUGE_PTEP_SET_WRPROTECT

void huge_ptep_set_wrprotect(struct mm_struct *mm,

					   unsigned long addr, pte_t *ptep);

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