@@ -1678,6 +1678,8 @@ static void blockdev_backup_prepare(BlkTransactionState *common, Error **errp)
return;
}
aio_context_acquire(state->aio_context);
+ state->bs = bs;
+ bdrv_drained_begin(bs);
qmp_blockdev_backup(backup->device, backup->target,
backup->sync,
@@ -1690,7 +1692,6 @@ static void blockdev_backup_prepare(BlkTransactionState *common, Error **errp)
return;
}
- state->bs = bs;
state->job = state->bs->job;
}
@@ -1710,6 +1711,7 @@ static void blockdev_backup_clean(BlkTransactionState *common)
BlockdevBackupState *state = DO_UPCAST(BlockdevBackupState, common, common);
if (state->aio_context) {
+ bdrv_drained_end(state->bs);
aio_context_release(state->aio_context);
}
}
Similar to the previous patch, make sure that external events are not dispatched during transaction operations. Signed-off-by: Fam Zheng <famz@redhat.com> --- blockdev.c | 4 +++- 1 file changed, 3 insertions(+), 1 deletion(-)