@@ -1649,6 +1649,7 @@ typedef struct BlockdevBackupState {
BlockDriverState *bs;
BlockJob *job;
AioContext *aio_context;
+ Error *blocker;
} BlockdevBackupState;
static void blockdev_backup_prepare(BlkTransactionState *common, Error **errp)
@@ -1685,6 +1686,10 @@ static void blockdev_backup_prepare(BlkTransactionState *common, Error **errp)
}
aio_context_acquire(state->aio_context);
+ state->bs = bs;
+ error_setg(&state->blocker, "blockdev-backup in progress");
+ bdrv_op_block(bs, BLOCK_OP_TYPE_DEVICE_IO, state->blocker);
+
qmp_blockdev_backup(backup->device, backup->target,
backup->sync,
backup->has_speed, backup->speed,
@@ -1696,7 +1701,6 @@ static void blockdev_backup_prepare(BlkTransactionState *common, Error **errp)
return;
}
- state->bs = bs;
state->job = state->bs->job;
}
@@ -1715,6 +1719,10 @@ static void blockdev_backup_clean(BlkTransactionState *common)
{
BlockdevBackupState *state = DO_UPCAST(BlockdevBackupState, common, common);
+ if (state->bs) {
+ bdrv_op_unblock(state->bs, BLOCK_OP_TYPE_DEVICE_IO, state->blocker);
+ error_free(state->blocker);
+ }
if (state->aio_context) {
aio_context_release(state->aio_context);
}
Signed-off-by: Fam Zheng <famz@redhat.com> --- blockdev.c | 10 +++++++++- 1 file changed, 9 insertions(+), 1 deletion(-)