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    SubjectRe: [patch 20/38] Minor fault path optimization.
    Martin Schwidefsky writes:

    > The minor fault path has grown a lot in terms of cycles. In particular
    > the kprobes hook is very costly. Optimize the path to save a couple of
    > cycles. If kprobes is enabled more than 300 cycles can be avoided if
    > kprobes_running() is false.

    There's no good reason to use a notifier for page faults, since
    there's only one external piece of code that wants to know about
    them...

    Regards,
    Paul.
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