Remove more obsolete comments about semaphores.
authorThomas Munro <tmunro@postgresql.org>
Fri, 9 Jul 2021 05:51:48 +0000 (17:51 +1200)
committerThomas Munro <tmunro@postgresql.org>
Fri, 9 Jul 2021 06:04:24 +0000 (18:04 +1200)
commit2f783380641db4cc598acd108186a446e4919290
tree61286503df5d2f45bf9cb9bf35ab234221d7b488
parent56ff8b29919f75a078969766393b9e20871a75c8
Remove more obsolete comments about semaphores.

Commit 6753333f stopped using semaphores as the sleep/wake mechanism for
heavyweight locks, but some obsolete references to that scheme remained
in comments.  As with similar commit 25b93a29, back-patch all the way.

Reviewed-by: Daniel Gustafsson <daniel@yesql.se>
Discussion: https://postgr.es/m/CA%2BhUKGLafjB1uzXcy%3D%3D2L3cy7rjHkqOVn7qRYGBjk%3D%3DtMJE7Yg%40mail.gmail.com
src/backend/storage/lmgr/lwlock.c