Thread: pgsql: Revert: Get rid of WALBufMappingLock

pgsql: Revert: Get rid of WALBufMappingLock

From
Alexander Korotkov
Date:
Revert: Get rid of WALBufMappingLock

This commit reverts 6a2275b895.  Buildfarm failure on batta spots some
concurrency issue, which requires further investigation.

Branch
------
master

Details
-------
https://git.postgresql.org/pg/commitdiff/3fb58625d18fd226cb929c9700d0db72ac92c075

Modified Files
--------------
src/backend/access/transam/xlog.c               | 176 +++++++-----------------
src/backend/utils/activity/wait_event_names.txt |   2 +-
src/include/storage/lwlocklist.h                |   2 +-
3 files changed, 48 insertions(+), 132 deletions(-)