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We use __tlb_adjust_range to update range convered by mmu_gather struct. We later use the 'start' and 'end' to do a mmu_notifier_invalidate_range in tlb_flush_mmu_tlbonly(). Update the 'end' correctly in __tlb_adjust_range so that we call mmu_notifier_invalidate_range with the correct range values. Wrt tlbflush, this should not have any impact, because a flush with correct start address will flush tlb mapping for the range. Also add comment w.r.t updating the range when we free pagetable pages. For now we don't support a range based page table cache flush. Link: http://lkml.kernel.org/r/20161026084839.27299-3-aneesh.kumar@linux.vnet.ibm.com Signed-off-by: Aneesh Kumar K.V <aneesh.kumar@linux.vnet.ibm.com> Cc: "Kirill A. Shutemov" <kirill@shutemov.name> Cc: Dan Williams <dan.j.williams@intel.com> Cc: Ross Zwisler <ross.zwisler@linux.intel.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org> |
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