On Wed, 03/25 17:36, Wen Congyang wrote:
> Signed-off-by: Wen Congyang <[email protected]>
> Signed-off-by: zhanghailiang <[email protected]>
> Signed-off-by: Gonglei <[email protected]>
> ---
> block.c | 18 ++++++++++++++++++
> 1 file changed, 18 insertions(+)
>
> diff --git a/block.c b/block.c
> index bd7fa9c..3af5ad4 100644
> --- a/block.c
> +++ b/block.c
> @@ -6368,6 +6368,12 @@ BlockAcctStats *bdrv_get_stats(BlockDriverState *bs)
> void bdrv_start_replication(BlockDriverState *bs, COLOMode mode, Error
> **errp)
> {
> BlockDriver *drv = bs->drv;
> + Error *local_err = NULL;
> +
> + if (bdrv_op_is_blocked(bs, BLOCK_OP_TYPE_BACKING_REFERENCE, &local_err))
> {
> + error_free(local_err);
local_err is set but not used, just pass NULL. Same below.
> + return;
> + }
>
> if (drv && drv->bdrv_start_replication) {
> drv->bdrv_start_replication(bs, mode, errp);
> @@ -6381,6 +6387,12 @@ void bdrv_start_replication(BlockDriverState *bs,
> COLOMode mode, Error **errp)
> void bdrv_do_checkpoint(BlockDriverState *bs, Error **errp)
> {
> BlockDriver *drv = bs->drv;
> + Error *local_err = NULL;
> +
> + if (bdrv_op_is_blocked(bs, BLOCK_OP_TYPE_BACKING_REFERENCE, &local_err))
> {
> + error_free(local_err);
> + return;
> + }
>
> if (drv && drv->bdrv_do_checkpoint) {
> drv->bdrv_do_checkpoint(bs, errp);
> @@ -6394,6 +6406,12 @@ void bdrv_do_checkpoint(BlockDriverState *bs, Error
> **errp)
> void bdrv_stop_replication(BlockDriverState *bs, Error **errp)
> {
> BlockDriver *drv = bs->drv;
> + Error *local_err = NULL;
> +
> + if (bdrv_op_is_blocked(bs, BLOCK_OP_TYPE_BACKING_REFERENCE, &local_err))
> {
> + error_free(local_err);
> + return;
> + }
>
> if (drv && drv->bdrv_stop_replication) {
> drv->bdrv_stop_replication(bs, errp);
> --
> 2.1.0
>
