hollalinux
/
linux-sg2042
mirror of https://github.com/sophgo/linux-riscv.git
1
0
Fork 0
Code Issues Packages Projects Releases Wiki Activity

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: Aneesh Kumar K.V <aneesh.kumar@linux.vnet.ibm.com>
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
This commit is contained in:
Aneesh Kumar K.V 2016-04-29 23:25:40 +10:00 committed by Michael Ellerman
parent ff844b741e
commit 33d336d986
1 changed files with 7 additions and 16 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

23
arch/powerpc/include/asm/book3s/64/hash.h
View File

@ -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)