Fix typo and outdated information in README.barrier
authorDavid Rowley <drowley@postgresql.org>
Mon, 17 May 2021 21:54:56 +0000 (09:54 +1200)
committerDavid Rowley <drowley@postgresql.org>
Mon, 17 May 2021 21:54:56 +0000 (09:54 +1200)
commit2ded19fa3a4dafbae80245710fa371d5163bdad4
tree4e10bd5099a1e3ae717127703a7245f2b7cf04ab
parente4f9737fac77a5cb03a84d1f4038d300ffd28afd
Fix typo and outdated information in README.barrier

README.barrier didn't seem to get the memo when atomics were added. Fix
that.

Author: Tatsuo Ishii, David Rowley
Discussion: https://postgr.es/m/20210516.211133.2159010194908437625.t-ishii%40sraoss.co.jp
Backpatch-through: 9.6, oldest supported release
src/backend/storage/lmgr/README.barrier