Re: remembering locks and dynahash.c - Mailing list pgsql-hackers

From Tom Lane
Subject Re: remembering locks and dynahash.c
Date
Msg-id 29637.1338444403@sss.pgh.pa.us
Whole thread Raw
In response to remembering locks and dynahash.c  (Jeff Janes <jeff.janes@gmail.com>)
List pgsql-hackers
Jeff Janes <jeff.janes@gmail.com> writes:
> I am working on making resource owner remember a limited number of
> locks, so it can reassign them more efficiently.

Check, per previous discussion.

> Currently I'm having resowner.c remember the LOCALLOCKTAG, because I
> thought that that was the only handle I could use.  But now I'm
> wondering if I should remember the LOCALLOCK * instead.

I was envisioning LOCALLOCK *.  dynahash will never move an existing
entry, and if the entry can be deleted while the resowner still holds a
pointer to it then you've got a logic bug.
        regards, tom lane


pgsql-hackers by date:

Previous
From: Tom Lane
Date:
Subject: Re: Bug in new buffering GiST build code
Next
From: Devrim GÜNDÜZ
Date:
Subject: Re: Uppercase tab completion keywords in psql?