Messages in this thread |  | | | Date | Mon, 17 Nov 2008 15:44:58 +1100 | | From | Paul Mackerras <> | | Subject | Re: [PATCH 4/7] ftrace, PPC: use probe_kernel API to modify code | |
Steven Rostedt writes:
> Impact: use cleaner probe_kernel API over assembly
>
> Using probe_kernel_read/write interface is a much cleaner approach
> than the current assembly version.
Possibly naive question: how is it possible for the accesses to the
instructions to fault, given that we are called through kstop_machine
(according to the comment) and nothing else should be happening?
Paul.
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