On Mon, Jun 4, 2012 at 10:17 AM, Merlin Moncure <mmonc...@gmail.com> wrote: > What happens (in the very unlikely, but possible case?) if another > backend races to the buffer you've pointed at with 'victim'? It looks > like multiple backends share the clock sweep now, but don't you need > to need an extra test to ensure it's still a candidate victim buffer?
Actually, I don't think you do: the existing check on refcount is probably good enough. Hm, why did you get rid of BufferStrategyControl.lastFreeBuffer? merlin -- Sent via pgsql-hackers mailing list (pgsql-hackers@postgresql.org) To make changes to your subscription: http://www.postgresql.org/mailpref/pgsql-hackers
