diff options
Diffstat (limited to 'mm')
| -rw-r--r-- | mm/memory.c | 14 |
1 files changed, 1 insertions, 13 deletions
diff --git a/mm/memory.c b/mm/memory.c index ae2ec887508b..19f47d7b9b86 100644 --- a/mm/memory.c +++ b/mm/memory.c @@ -1613,20 +1613,8 @@ void zap_page_range(struct vm_area_struct *vma, unsigned long start, tlb_gather_mmu(&tlb, mm, start, end); update_hiwater_rss(mm); mmu_notifier_invalidate_range_start(mm, start, end); - for ( ; vma && vma->vm_start < end; vma = vma->vm_next) { + for ( ; vma && vma->vm_start < end; vma = vma->vm_next) unmap_single_vma(&tlb, vma, start, end, NULL); - - /* - * zap_page_range does not specify whether mmap_sem should be - * held for read or write. That allows parallel zap_page_range - * operations to unmap a PTE and defer a flush meaning that - * this call observes pte_none and fails to flush the TLB. - * Rather than adding a complex API, ensure that no stale - * TLB entries exist when this call returns. - */ - flush_tlb_range(vma, start, end); - } - mmu_notifier_invalidate_range_end(mm, start, end); tlb_finish_mmu(&tlb, start, end); } |