[PATCH v4 00/10] COLO: improve build options

[Vladimir Sementsov-Ogievskiy]

v4:
01: add r-b by Lukas
02: new
03: - keep x-colo capability enum value unconditional
    - drop ifdefs in options.c and keep capability check instead
    - update stubs
    - add missed a-b by Dr. David
04: keep filter-mirror untouched, add r-b by Juan

others: new. Some further improvements of COLO module API. May be merged
separately.

Hi all!

COLO substem seems to be useless when CONFIG_REPLICATION is unset, as we
simply don't allow to set x-colo capability in this case. So, let's not
compile in unreachable code and interface we cannot use when
CONFIG_REPLICATION is unset.

Also, provide personal configure option for COLO Proxy subsystem.

Vladimir Sementsov-Ogievskiy (10):
  block/meson.build: prefer positive condition for replication
  colo: make colo_checkpoint_notify static and provide simpler API
  build: move COLO under CONFIG_REPLICATION
  configure: add --disable-colo-proxy option
  migration: drop colo_incoming_thread from MigrationIncomingState
  migration: process_incoming_migration_co: simplify code flow around
    ret
  migration: split migration_incoming_co
  migration: process_incoming_migration_co(): move colo part to colo
  migration: disallow change capabilities in COLO state
  migration: block incoming colo when capability is disabled

 block/meson.build              |   2 +-
 hmp-commands.hx                |   2 +
 include/migration/colo.h       |  18 +++++-
 meson_options.txt              |   2 +
 migration/colo.c               | 100 +++++++++++++++++++--------------
 migration/meson.build          |   6 +-
 migration/migration-hmp-cmds.c |   2 +
 migration/migration.c          |  51 +++++++----------
 migration/migration.h          |  11 +++-
 migration/options.c            |   6 +-
 net/meson.build                |  13 ++++-
 qapi/migration.json            |   9 ++-
 scripts/meson-buildoptions.sh  |   3 +
 stubs/colo-compare.c           |   7 +++
 stubs/colo.c                   |  37 ++++++++++++
 stubs/meson.build              |   2 +
 16 files changed, 181 insertions(+), 90 deletions(-)
 create mode 100644 stubs/colo-compare.c
 create mode 100644 stubs/colo.c

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2.34.1