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Commit 33d336d9 authored by Aneesh Kumar K.V's avatar Aneesh Kumar K.V Committed by Michael Ellerman
Browse files

powerpc/mm: Use generic version of ptep_clear_flush_young() 



The radix variant is going to require a flush_tlb_range(). With
flush_tlb_range() added, ptep_clear_flush_young() is the same as the
generic version. So drop the powerpc specific variant.

Signed-off-by: default avatarAneesh Kumar K.V <aneesh.kumar@linux.vnet.ibm.com>
Signed-off-by: default avatarMichael Ellerman <mpe@ellerman.id.au>
parent ff844b74

arch/powerpc/include/asm/book3s/64/hash.h

+7 −16
Original line number Diff line number Diff line
@@ -275,6 +275,13 @@ static inline unsigned long pte_update(struct mm_struct *mm, 
	return old;

}



/*

 * We currently remove entries from the hashtable regardless of whether

 * the entry was young or dirty.

 *

 * We should be more intelligent about this but for the moment we override

 * these functions and force a tlb flush unconditionally

 */

static inline int __ptep_test_and_clear_young(struct mm_struct *mm,

					      unsigned long addr, pte_t *ptep)

{
@@ -313,22 +320,6 @@ static inline void huge_ptep_set_wrprotect(struct mm_struct *mm, 
	pte_update(mm, addr, ptep, _PAGE_WRITE, 0, 1);

}



/*

 * We currently remove entries from the hashtable regardless of whether

 * the entry was young or dirty. The generic routines only flush if the

 * entry was young or dirty which is not good enough.

 *

 * We should be more intelligent about this but for the moment we override

 * these functions and force a tlb flush unconditionally

 */

#define __HAVE_ARCH_PTEP_CLEAR_YOUNG_FLUSH

#define ptep_clear_flush_young(__vma, __address, __ptep)		\

({									\

	int __young = __ptep_test_and_clear_young((__vma)->vm_mm, __address, \

						  __ptep);		\

	__young;							\

})



#define __HAVE_ARCH_PTEP_GET_AND_CLEAR

static inline pte_t ptep_get_and_clear(struct mm_struct *mm,

				       unsigned long addr, pte_t *ptep)