[lttng-dev] Unexport of kvm_x86_ops vs tracer modules

Steven Rostedt rostedt at goodmis.org
Mon Apr 25 15:13:36 EDT 2022


On Mon, 25 Apr 2022 12:02:52 -0400 (EDT)
Mathieu Desnoyers <mathieu.desnoyers at efficios.com> wrote:

> If the fast assign can then be used on a field-per-field basis, maybe this
> could work, but AFAIK the fast-assign macro is open-coded C, which makes this
> not straightforward.

Yeah, that's not going to be feasible, without changing all 1000's of
events.

> 
> If it's a all-or-nothing approach where the fast-assign needs to serialize all
> fields, this would require that lttng copies the data into a temporary area,
> which is something I want to avoid for filtering and event notification per-field
> payload capture purposes.

Right. Not sure how to fix this then.

-- Steve


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