[PATCH] Enhance time sampling of async IO VFS functions

[Volker Lendecke]

On Sun, Feb 28, 2016 at 08:39:19AM -0800, Jeremy Allison wrote:
> > Is it theoretically possible to implement this feature without modifying
> > tevent, just within asys.c? Apologies for not coming up with a polished
> > proposal mself, but I would like to avoid bloat in such a central
> > structure if possible.
> 
> Sure, if we change the param blocks to the smbd VFS aio
> calls then we can do it only inside smbd.
> 
> I think the question Ralph had is more about if you
> think this is worthwhile to add as a feature to tevent ?
> 
> Or did you just answer that question ? :-) :-).

Right now we have one case where someone really needs this feature. We
have many cases that don't. So if there's an elegant way to do this
without adding 8 bytes to struct tevent_req I'd prefer that.

Volker

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