Satoshi Nagayasu <snaga(at)uptime(dot)jp> writes:
> Hi,
> I'm thinking of adding new probes to trace smgr activities.
> In this implementation, I just found that md.c has its own probes
> within it, but I'm wondering why we do not have those probes
> within the generic smgr routines itself.
IMV smgr is pretty vestigial. I wouldn't recommend loading more
functionality onto that layer, because it's as likely as not that
we'll just get rid of it someday.
regards, tom lane