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    SubjectRe: [RFC] [PATCH] cache pollution aware __copy_from_user_ll()
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    On Tue, 2005-08-16 at 13:54 +0900, Hiro Yoshioka wrote:
    > Takahashi san,
    >
    > I appreciate your comments.
    >
    > > Hi,
    > >
    > > BTW, what are you going to do with the page-faults which may happen
    > > during __copy_user_zeroing_nocache()? The current process may be blocked
    > > in the handler for a while and get FPU registers polluted.
    > > kernel_fpu_begin() won't help the case. This is another issue, though.
    >
    > My code does nothing do it.
    >
    > I need a volunteer to implement it.

    it's actually not too hard; all you need is to use SSE and not MMX; and
    then just store sse register you're overwriting on the stack or so...



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