pgsql: Revert "Consistently test for in-use shared memory."

From: Noah Misch <noah(at)leadboat(dot)com>
To: pgsql-committers(at)lists(dot)postgresql(dot)org
Subject: pgsql: Revert "Consistently test for in-use shared memory."
Date: 2019-04-05 07:01:53
Message-ID: E1hCIrJ-0005wu-9J@gemulon.postgresql.org
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Revert "Consistently test for in-use shared memory."

This reverts commits 2f932f71d9f2963bbd201129d7b971c8f5f077fd,
16ee6eaf80a40007a138b60bb5661660058d0422 and
6f0e190056fe441f7cf788ff19b62b13c94f68f3. The buildfarm has revealed
several bugs. Back-patch like the original commits.

Discussion: https://postgr.es/m/20190404145319.GA1720877@rfd.leadboat.com

Branch
------
REL_10_STABLE

Details
-------
https://git.postgresql.org/pg/commitdiff/7d18a55c90eb5a83c702c7cd8e23ae25c389a636

Modified Files
--------------
src/Makefile.global.in | 4 +-
src/backend/port/sysv_shmem.c | 257 +++++++++++++++---------------------
src/backend/port/win32_shmem.c | 7 +-
src/backend/postmaster/postmaster.c | 12 +-
src/backend/storage/ipc/ipci.c | 14 +-
src/backend/utils/init/postinit.c | 6 +-
src/include/storage/ipc.h | 2 +-
src/include/storage/pg_shmem.h | 6 +-
src/test/perl/PostgresNode.pm | 182 +++++--------------------
src/test/recovery/t/017_shm.pl | 177 -------------------------
src/tools/msvc/vcregress.pl | 1 -
11 files changed, 176 insertions(+), 492 deletions(-)

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