From: Nathan Bossart <nathan@postgresql.org>
To: pgsql-committers@lists.postgresql.org
Subject: pgsql: Use LW_SHARED in dsa.c where possible.
Date: Tue, 02 Dec 2025 22:40:48 +0000
Message-ID: <E1vQZ39-002Uru-1g@gemulon.postgresql.org> (raw)
Use LW_SHARED in dsa.c where possible.
Both dsa_get_total_size() and dsa_get_total_size_from_handle() take
an exclusive lock just to read a variable. This commit reduces the
lock level to LW_SHARED in those functions.
Reviewed-by: Sami Imseih <samimseih@gmail.com>
Discussion: https://postgr.es/m/aS8fMzWs9e8iHxk2%40nathan
Branch
------
master
Details
-------
https://git.postgresql.org/pg/commitdiff/a6d05c819380b0940fcfb428aa298f2d7e76e5c6
Modified Files
--------------
src/backend/utils/mmgr/dsa.c | 4 ++--
1 file changed, 2 insertions(+), 2 deletions(-)
Reply instructions:
You may reply publicly to this message via plain-text email
using any one of the following methods:
* Reply to all the recipients using the --to and --cc options:
reply via email
To: pgsql-committers@postgresql.org
Cc: nathan@postgresql.org, pgsql-committers@lists.postgresql.org
Subject: Re: pgsql: Use LW_SHARED in dsa.c where possible.
In-Reply-To: <E1vQZ39-002Uru-1g@gemulon.postgresql.org>
* Save the following mbox file, import it into your mail client,
and reply-to-all from there: mbox
This inbox is served by DDX for PostgreSQL; see mirroring instructions
for how to clone and mirror all data and code used for this inbox