[Tarantool-patches] [PATCH v32 0/2] qsync: implement packet filtering (part 1)

[Cyrill Gorcunov]

Guys, take a look please, once time permit. Comments are welcome!

v30:
 - addess commenst (redundant code modifications due to more general
   locking scheme)
 - leave `latched` status for transactions which are started to
   process (ie entered limbo processing) but not yet complete due
   to WAL stalls, since I need to test exactly such state
 - extend the test

v31 (by SergeP):
 - drop latch_is_locked member
 - use `busy` flag in info output
 - update test case (kudos to SergeP for help)

v32 (by SergeP):
 - update test
 - improve changelogs (adding tags)
 - merge test with second patch

branch gorcunov/gh-6036-rollback-confirm-32
issue https://github.com/tarantool/tarantool/issues/6036
previous series https://lists.tarantool.org/tarantool-patches/20220302202711.1003906-1-gorcunov@gmail.com/

Cyrill Gorcunov (2):
  latch: add latch_is_locked helper
  qsync: order access to the limbo terms

 .../unreleased/gh-6036-applier-fix-race.md    |   5 +
 src/box/applier.cc                            |   6 +-
 src/box/box.cc                                |   8 +-
 src/box/lua/info.c                            |   4 +-
 src/box/txn_limbo.c                           |  13 +-
 src/box/txn_limbo.h                           |  44 +++-
 src/lib/core/latch.h                          |  11 +
 .../gh_6036_qsync_order_test.lua              | 194 ++++++++++++++++++
 test/replication-luatest/suite.ini            |   1 +
 9 files changed, 276 insertions(+), 10 deletions(-)
 create mode 100644 changelogs/unreleased/gh-6036-applier-fix-race.md
 create mode 100644 test/replication-luatest/gh_6036_qsync_order_test.lua


base-commit: 884b3ff3ffa5f6a9d4c3982611da83dc935d0b17
-- 
2.35.1