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Commit ff844b74 authored by Aneesh Kumar K.V's avatar Aneesh Kumar K.V Committed by Michael Ellerman
Browse files

powerpc/mm: Use generic version of pmdp_clear_flush_young() 



The radix variant is going to require a flush_pmd_tlb_range(). With
flush_pmd_tlb_range() added, pmdp_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 30bda41a

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

+0 −3
Original line number Diff line number Diff line
@@ -298,9 +298,6 @@ extern int pmdp_set_access_flags(struct vm_area_struct *vma, 
#define __HAVE_ARCH_PMDP_TEST_AND_CLEAR_YOUNG

extern int pmdp_test_and_clear_young(struct vm_area_struct *vma,

				     unsigned long address, pmd_t *pmdp);

#define __HAVE_ARCH_PMDP_CLEAR_YOUNG_FLUSH

extern int pmdp_clear_flush_young(struct vm_area_struct *vma,

				  unsigned long address, pmd_t *pmdp);



#define __HAVE_ARCH_PMDP_HUGE_GET_AND_CLEAR

extern pmd_t pmdp_huge_get_and_clear(struct mm_struct *mm,

arch/powerpc/mm/pgtable_64.c

+3 −10
Original line number Diff line number Diff line
@@ -588,21 +588,14 @@ pmd_t pmdp_collapse_flush(struct vm_area_struct *vma, unsigned long address, 
	return pmd;

}



int pmdp_test_and_clear_young(struct vm_area_struct *vma,

			      unsigned long address, pmd_t *pmdp)

{

	return __pmdp_test_and_clear_young(vma->vm_mm, address, pmdp);

}



/*

 * 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.

 * 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

 */

int pmdp_clear_flush_young(struct vm_area_struct *vma,

int pmdp_test_and_clear_young(struct vm_area_struct *vma,

			      unsigned long address, pmd_t *pmdp)

{

	return __pmdp_test_and_clear_young(vma->vm_mm, address, pmdp);