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migration: migrate 'inc' command option is deprecated.

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Use blockdev-mirror with NBD instead.

Reviewed-by: Thomas Huth <thuth@redhat.com>
Acked-by: Stefan Hajnoczi <stefanha@redhat.com>
Reviewed-by: Markus Armbruster <armbru@redhat.com>
Signed-off-by: Juan Quintela <quintela@redhat.com>
Message-ID: <20231018115513.2163-3-quintela@redhat.com>
This commit is contained in:
Juan Quintela 2023-10-18 13:55:10 +02:00
parent bf1695c252
commit 40101f320d
4 changed files with 25 additions and 1 deletions
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8
docs/about/deprecated.rst
View file

@ -469,3 +469,11 @@ 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)
''''''''''''''''''''''''''''''''''''''''''
Use blockdev-mirror with NBD instead.
As an intermediate step the ``inc`` functionality can be achieved by
setting the ``block-incremental`` migration parameter to ``true``.
But this parameter is also deprecated.

5
migration/migration-hmp-cmds.c
View file

@ -745,6 +745,11 @@ void hmp_migrate(Monitor *mon, const QDict *qdict)
const char *uri = qdict_get_str(qdict, "uri");
Error *err = NULL;
if (inc) {
warn_report("option '-i' is deprecated;"
" use blockdev-mirror with NBD instead");
}
qmp_migrate(uri, !!blk, blk, !!inc, inc,
false, false, true, resume, &err);
if (hmp_handle_error(mon, err)) {

5
migration/migration.c
View file

@ -1620,6 +1620,11 @@ static bool migrate_prepare(MigrationState *s, bool blk, bool blk_inc,
{
Error *local_err = NULL;
if (blk_inc) {
warn_report("parameter 'inc' is deprecated;"
" use blockdev-mirror with NBD instead");
}
if (resume) {
if (s->state != MIGRATION_STATUS_POSTCOPY_PAUSED) {
error_setg(errp, "Cannot resume if there is no "

8
qapi/migration.json
View file

@ -1524,6 +1524,11 @@
#
# @resume: resume one paused migration, default "off". (since 3.0)
#
# Features:
#
# @deprecated: Member @inc is deprecated. Use blockdev-mirror with
# NBD instead.
#
# Returns: nothing on success
#
# Since: 0.14
@ -1545,7 +1550,8 @@
# <- { "return": {} }
##
{ 'command': 'migrate',
'data': {'uri': 'str', '*blk': 'bool', '*inc': 'bool',
'data': {'uri': 'str', '*blk': 'bool',
'*inc': { 'type': 'bool', 'features': [ 'deprecated' ] },
'*detach': 'bool', '*resume': 'bool' } }
##