Quick Links

pgsql: Convert ParallelBitmapHeapState->state to an atomic variable.

From:	Nathan Bossart <nathan(at)postgresql(dot)org>
To:	pgsql-committers(at)lists(dot)postgresql(dot)org
Subject:	pgsql: Convert ParallelBitmapHeapState->state to an atomic variable.
Date:	2026-09-22 17:44:50
Message-ID:	E1x94Xy-00000000njB-2qAX@gemulon.postgresql.org
Views:	Whole Thread \| Raw Message \| Download mbox \| Resend email
Thread:
Lists:	pgsql-committers

Convert ParallelBitmapHeapState->state to an atomic variable.

Currently, this variable is a SharedBitmapState protected by a
spinlock. By converting it to an atomic variable, we can remove the
spinlock.

Reviewed-by: Zsolt Parragi <zsolt(dot)parragi(at)percona(dot)com>
Tested-by: solai v <solai(dot)cdac(at)gmail(dot)com>
Discussion: https://postgr.es/m/alAJeRRzehDjLaF1%40nathan

Branch
------
master

Modified Files
--------------
src/backend/executor/nodeBitmapHeapscan.c | 23 +++++++----------------
1 file changed, 7 insertions(+), 16 deletions(-)

	From	Date	Subject
Next Message	Peter Eisentraut	2026-09-22 18:02:23	pgsql: Silence warnings about unused global variables
Previous Message	Michael Paquier	2026-09-22 10:49:01	pgsql: Improve error code and messages for some SQL-reachable code path