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    SubjectRe: [PATCH 1/2] Introduce copy_user_handle_tail routine
    Date
    Vitaly Mayatskikh <v.mayatskih@gmail.com> writes:

    >> one), by limiting the byte-for-byte one to be within a page, but that
    >> would be a "future enhancement" thing.
    >
    > Btw, how much does it cost to CPU to do a fault? Can it be compared with
    > average time of find_vma()?

    Remark: this is for preventing fault in memset, not byte-to-byte copy.

    --
    wbr, Vitaly


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