| From: | Jeff Davis <jdavis(at)postgresql(dot)org> |
|---|---|
| To: | pgsql-committers(at)lists(dot)postgresql(dot)org |
| Subject: | pgsql: Use 64-bit atomics for xlblocks array elements. |
| Date: | 2023-12-20 01:44:29 |
| Message-ID: | E1rFldM-00B0Kk-JK@gemulon.postgresql.org |
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| Lists: | pgsql-committers |
Use 64-bit atomics for xlblocks array elements.
In preparation for reading the contents of WAL buffers without a
lock. Also, avoids the previously-needed comment in GetXLogBuffer()
explaining why it's safe from torn reads.
Author: Bharath Rupireddy
Discussion: https://postgr.es/m/CALj2ACVfFMfqD5oLzZSQQZWfXiJqd-NdX0_317veP6FuB31QWA@mail.gmail.com
Reviewed-by: Andres Freund
Branch
------
master
Details
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https://git.postgresql.org/pg/commitdiff/c3a8e2a7cb16d55e3b757934b538cb8b8a0eab02
Modified Files
--------------
src/backend/access/transam/xlog.c | 40 +++++++++++++++++++--------------------
1 file changed, 19 insertions(+), 21 deletions(-)
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