Re: Adding probes for smgr

Satoshi Nagayasu <snaga@uptime.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