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    SubjectRe: [PATCH kernel v11 30/34] powerpc/iommu/ioda2: Add get_table_size() to calculate the size of future table
    On Fri, May 29, 2015 at 06:44:54PM +1000, Alexey Kardashevskiy wrote:
    > This adds a way for the IOMMU user to know how much a new table will
    > use so it can be accounted in the locked_vm limit before allocation
    > happens.
    >
    > This stores the allocated table size in pnv_pci_ioda2_get_table_size()
    > so the locked_vm counter can be updated correctly when a table is
    > being disposed.
    >
    > This defines an iommu_table_group_ops callback to let VFIO know
    > how much memory will be locked if a table is created.
    >
    > Signed-off-by: Alexey Kardashevskiy <aik@ozlabs.ru>

    Reviewed-by: David Gibson <david@gibson.dropbear.id.au>

    --
    David Gibson | I'll have my music baroque, and my code
    david AT gibson.dropbear.id.au | minimalist, thank you. NOT _the_ _other_
    | _way_ _around_!
    http://www.ozlabs.org/~dgibson
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