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| author | Aneesh Kumar K.V <aneesh.kumar@linux.vnet.ibm.com> | 2016-07-13 15:06:44 +0530 |
|---|---|---|
| committer | Michael Ellerman <mpe@ellerman.id.au> | 2016-08-01 11:15:13 +1000 |
| commit | 703b41ad1a8759949adc1b641a82c2b227d18223 (patch) | |
| tree | 039834ff8550ce2e0f01d42ae0fdeaf2497f7e6d /arch/powerpc/mm | |
| parent | 5491ae7b6f48499b8892822cff371746f0b4102f (diff) | |
| download | linux-703b41ad1a8759949adc1b641a82c2b227d18223.tar.gz | |
powerpc/mm: remove flush_tlb_page_nohash
This should be same as flush_tlb_page except for hash32. For hash32 I guess the existing code is wrong, because we don't seem to be flushing tlb for Hash != 0 case at all. Fix this by switching to calling flush_tlb_page() which does the right thing by flushing tlb for both hash and nohash case with hash32 Signed-off-by: Aneesh Kumar K.V <aneesh.kumar@linux.vnet.ibm.com> Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
Diffstat (limited to 'arch/powerpc/mm')
| -rw-r--r-- | arch/powerpc/mm/pgtable.c | 2 | ||||
| -rw-r--r-- | arch/powerpc/mm/tlb_hash32.c | 11 |
2 files changed, 1 insertions, 12 deletions
diff --git a/arch/powerpc/mm/pgtable.c b/arch/powerpc/mm/pgtable.c index 88a307504b5a..0b6fb244d0a1 100644 --- a/arch/powerpc/mm/pgtable.c +++ b/arch/powerpc/mm/pgtable.c @@ -225,7 +225,7 @@ int ptep_set_access_flags(struct vm_area_struct *vma, unsigned long address, if (!is_vm_hugetlb_page(vma)) assert_pte_locked(vma->vm_mm, address); __ptep_set_access_flags(ptep, entry); - flush_tlb_page_nohash(vma, address); + flush_tlb_page(vma, address); } return changed; } diff --git a/arch/powerpc/mm/tlb_hash32.c b/arch/powerpc/mm/tlb_hash32.c index 558e30cce33e..702d7689d714 100644 --- a/arch/powerpc/mm/tlb_hash32.c +++ b/arch/powerpc/mm/tlb_hash32.c @@ -49,17 +49,6 @@ void flush_hash_entry(struct mm_struct *mm, pte_t *ptep, unsigned long addr) EXPORT_SYMBOL(flush_hash_entry); /* - * Called by ptep_set_access_flags, must flush on CPUs for which the - * DSI handler can't just "fixup" the TLB on a write fault - */ -void flush_tlb_page_nohash(struct vm_area_struct *vma, unsigned long addr) -{ - if (Hash != 0) - return; - _tlbie(addr); -} - -/* * Called at the end of a mmu_gather operation to make sure the * TLB flush is completely done. */ |