Juan Quintela <quintela@redhat.com> writes:
Set the 'block_incremental' migration parameter to 'true' instead.
Reviewed-by: Thomas Huth <thuth@redhat.com> Acked-by: Stefan Hajnoczi <stefanha@redhat.com> Signed-off-by: Juan Quintela <quintela@redhat.com>
---
Improve documentation and style (thanks Markus) --- docs/about/deprecated.rst | 7 +++++++ qapi/migration.json | 8 +++++++- migration/migration.c | 6 ++++++ 3 files changed, 20 insertions(+), 1 deletion(-)
diff --git a/docs/about/deprecated.rst b/docs/about/deprecated.rst index 1c4d7f36f0..1b6b2870cf 100644 --- a/docs/about/deprecated.rst +++ b/docs/about/deprecated.rst @@ -452,3 +452,10 @@ Migration ``skipped`` field in Migration stats has been deprecated. It hasn't been used for more than 10 years.
+``inc`` migrate command option (since 8.2) +'''''''''''''''''''''''''''''''''''''''''' + +The new way to modify migration is using migration parameters. +``inc`` functionality can be achieved by setting the +``block-incremental`` migration parameter to ``true``. + diff --git a/qapi/migration.json b/qapi/migration.json index 6865fea3c5..56bbd55b87 100644 --- a/qapi/migration.json +++ b/qapi/migration.json @@ -1492,6 +1492,11 @@ # # @resume: resume one paused migration, default "off". (since 3.0) # +# Features: +# +# @deprecated: Member @inc is deprecated. Use migration parameter +# @block-incremental instead.
This is fine now. It becomes bad advice in PATCH 05, which deprecates @block-incremental. Two solutions: 1. Change this patch to point to an alternative that will *not* be deprecated. 2. Change PATCH 05. Same end result.
+# # Returns: nothing on success # # Since: 0.14 @@ -1513,7 +1518,8 @@ # <- { "return": {} } ## { 'command': 'migrate', - 'data': {'uri': 'str', '*blk': 'bool', '*inc': 'bool', + 'data': {'uri': 'str', '*blk': 'bool', + '*inc': { 'type': 'bool', 'features': [ 'deprecated' ] }, '*detach': 'bool', '*resume': 'bool' } }
## diff --git a/migration/migration.c b/migration/migration.c index 1c6c81ad49..ac4897fe0d 100644 --- a/migration/migration.c +++ b/migration/migration.c @@ -1601,6 +1601,12 @@ static bool migrate_prepare(MigrationState *s, bool blk, bool blk_inc, { Error *local_err = NULL;
+ if (blk_inc) { + warn_report("@inc/-i migrate option is deprecated, set the"
This is either about QMP migrate's parameter "inc", or HMP migrate's flags -i. In the former case, we want something like "parameter 'inc' is deprecated". In the latter case, we want something like "-i is deprecated". Trying to do both in a single message results in a sub-par message. If you want to do better, you have to check in hmp_migrate(), too. Then hmp_migrate can refer to "-i", and migrate_prepare() to "parameter 'inc'". Up to you. If you decide a single message is good enough, use something like "parameter 'inc' / flag -i is deprecated".
+ "'block-incremental' migration parameter to 'true'" + " instead.");
Again, fine now, becomes bad advice in PATCH 05.
+ } + if (resume) { if (s->state != MIGRATION_STATUS_POSTCOPY_PAUSED) { error_setg(errp, "Cannot resume if there is no "