diff options
| author | Peter Xu <peterx@redhat.com> | 2017-06-28 15:15:44 +0800 |
|---|---|---|
| committer | Juan Quintela <quintela@redhat.com> | 2017-06-28 11:18:39 +0200 |
| commit | 01f6e14c78f480ade5521139019fdf930a7affaa (patch) | |
| tree | 085d6578cbf1dfcc7beb84d80bb73ba8b9f058b7 /migration | |
| parent | 9d18af93b39544a829f398c9e0cfd0e6ae7deb13 (diff) | |
migration: add comment for TYPE_MIGRATE
It'll be strange that the migration object inherits TYPE_DEVICE. Add
some explanations to it.
Signed-off-by: Peter Xu <peterx@redhat.com>
Message-Id: <1498634144-26508-1-git-send-email-peterx@redhat.com>
Reviewed-by: Juan Quintela <quintela@redhat.com>
Signed-off-by: Juan Quintela <quintela@redhat.com>
Diffstat (limited to 'migration')
| -rw-r--r-- | migration/migration.c | 8 |
1 files changed, 8 insertions, 0 deletions
diff --git a/migration/migration.c b/migration/migration.c index b1b08250ce..2398a9db4f 100644 --- a/migration/migration.c +++ b/migration/migration.c @@ -2046,6 +2046,14 @@ static void migration_instance_init(Object *obj) static const TypeInfo migration_type = { .name = TYPE_MIGRATION, + /* + * NOTE: "migration" itself is not really a device. We used + * TYPE_DEVICE here only to leverage some existing QDev features + * like "-global" properties, and HW_COMPAT_* fields (which are + * finally applied as global properties as well). If one day the + * global property feature can be migrated from QDev to QObject in + * general, then we can switch to QObject as well. + */ .parent = TYPE_DEVICE, .class_init = migration_class_init, .class_size = sizeof(MigrationClass), |