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    SubjectRe: irq-disabled vs vmap vs text_poke
    * Steven Rostedt (rostedt@goodmis.org) wrote:
    >
    > On Tue, 17 Feb 2009, Mathieu Desnoyers wrote:
    > > >
    > >
    > > Anyway dynamic ftrace only need to do code patching at early boot,
    > > right? Or do you need also to patch the call sites a bit later too ?
    > > Because there is a text_poke_early for that purpose : modifying code
    > > when it is still writable.
    >
    > It modifies the code both at early boot up, and when it is enabled later
    > on at run time.
    >
    > -- Steve
    >

    OK, so without text_poke, how does it deal with kernel with text pages
    marked read-only after boot ?

    Mathieu


    --
    Mathieu Desnoyers
    OpenPGP key fingerprint: 8CD5 52C3 8E3C 4140 715F BA06 3F25 A8FE 3BAE 9A68


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