Messages in this thread | | | Date | Tue, 17 Feb 2009 12:28:50 -0500 | From | Mathieu Desnoyers <> | Subject | Re: irq-disabled vs vmap vs text_poke |
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* 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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