Mathieu Desnoyers wrote:
quoted text
> Is your only problem the fact that tracepoints include rcupdate.h ?

No.  That was the first roadblock, which caused massive cyclic 
dependencies between includes and consequent failure to define 
everything required.  I solved that by pushing __DO_TRACE out of line.  
Everything since then is a separate issue.

quoted text
>  This
> can easily be solved by moving rcu_read_(un)lock_sched_notrace to a
> rcu-update-<insert meaningful name here> and include this header in
> rcupdate.h and tracepoint.h.
>   
I suppose, but I think pushing __do_trace_##name out of line is cleaner 
anyway.  And I think it's very important that tracepoint.h have a 
*absolutely minimal* #include set, so that it can be safely included in 
as many contexts as possible.  asm/paravirt.h is complex enough as it 
is, and I really don't want tracepoint bringing in any extra headers at 
all.  linux/types.h is about the only acceptable one.

quoted text
> If by doing these modifications we succeed in keeping the "void"
> parameters working _and_ make your stuff to compile, I think we would
> have done something great. :-)
>   

The void issue is irritating, but relatively minor compared to the 
rest.  If everything else gets solved except for the need to pass a 
dummy param to no-arg tracepoints, then I think it'll be a generally 
useful facility.

    J
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