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| author | Ashijeet Acharya <ashijeetacharya@gmail.com> | 2017-01-16 17:01:53 +0530 |
|---|---|---|
| committer | Dr. David Alan Gilbert <dgilbert@redhat.com> | 2017-01-24 18:00:30 +0000 |
| commit | fe44dc91807eca59d0230fe828c1e2ee0c305a1e (patch) | |
| tree | ecbc1e1fd3a3052910eff44f0f6e8a84b626b199 /hw/virtio | |
| parent | a3a3d8c73889282eb696535f1b5345d88b4dc58c (diff) | |
| download | qemu-fe44dc91807eca59d0230fe828c1e2ee0c305a1e.zip qemu-fe44dc91807eca59d0230fe828c1e2ee0c305a1e.tar.gz qemu-fe44dc91807eca59d0230fe828c1e2ee0c305a1e.tar.bz2 | |
migration: disallow migrate_add_blocker during migration
If a migration is already in progress and somebody attempts
to add a migration blocker, this should rightly fail.
Add an errp parameter and a retcode return value to migrate_add_blocker.
Signed-off-by: John Snow <jsnow@redhat.com>
Signed-off-by: Ashijeet Acharya <ashijeetacharya@gmail.com>
Message-Id: <1484566314-3987-5-git-send-email-ashijeetacharya@gmail.com>
Reviewed-by: Dr. David Alan Gilbert <dgilbert@redhat.com>
Acked-by: Greg Kurz <groug@kaod.org>
Signed-off-by: Dr. David Alan Gilbert <dgilbert@redhat.com>
Merged with recent 'Allow invtsc migration' change
Diffstat (limited to 'hw/virtio')
| -rw-r--r-- | hw/virtio/vhost.c | 8 |
1 files changed, 7 insertions, 1 deletions
diff --git a/hw/virtio/vhost.c b/hw/virtio/vhost.c index 9cacf55..b124d97 100644 --- a/hw/virtio/vhost.c +++ b/hw/virtio/vhost.c @@ -1176,6 +1176,7 @@ int vhost_dev_init(struct vhost_dev *hdev, void *opaque, { uint64_t features; int i, r, n_initialized_vqs = 0; + Error *local_err = NULL; hdev->vdev = NULL; hdev->migration_blocker = NULL; @@ -1256,7 +1257,12 @@ int vhost_dev_init(struct vhost_dev *hdev, void *opaque, } if (hdev->migration_blocker != NULL) { - migrate_add_blocker(hdev->migration_blocker); + r = migrate_add_blocker(hdev->migration_blocker, &local_err); + if (local_err) { + error_report_err(local_err); + error_free(hdev->migration_blocker); + goto fail_busyloop; + } } hdev->mem = g_malloc0(offsetof(struct vhost_memory, regions)); |