Re: Fix locking issue with fixed-size stats template in injection_points - Mailing list pgsql-hackers

On Sep 29, 2025, at 14:27, Michael Paquier <michael@paquier.xyz> wrote:

On Mon, Sep 29, 2025 at 09:46:05AM +0800, Chao Li wrote:

I saw pg_state_begin_changecount_write() is called multiple places,
as you mention, for example bgwriter.

I've mentioned that in my first email, and put in details:
- pgstat_report_bgwriter() is called once, by the bgwriter.
- pgstat_report_checkpointer() is called three time, all by the
checkpointer.
- pgstat_report_archiver() is called twice, all by pgarch.c.

So all of them don't have a problem, two calls cannot happen
concurrently.
--
Michael