diff options
Diffstat (limited to 'block')
| -rw-r--r-- | block/backup.c | 2 | ||||
| -rw-r--r-- | block/copy-before-write.c | 9 | ||||
| -rw-r--r-- | block/copy-before-write.h | 1 |
3 files changed, 11 insertions, 1 deletions
diff --git a/block/backup.c b/block/backup.c index 3dd2e229d2..a1292c01ec 100644 --- a/block/backup.c +++ b/block/backup.c @@ -458,7 +458,7 @@ BlockJob *backup_job_create(const char *job_id, BlockDriverState *bs, } cbw = bdrv_cbw_append(bs, target, filter_node_name, discard_source, - &bcs, errp); + perf->min_cluster_size, &bcs, errp); if (!cbw) { goto error; } diff --git a/block/copy-before-write.c b/block/copy-before-write.c index a919b1f41b..e835987e52 100644 --- a/block/copy-before-write.c +++ b/block/copy-before-write.c @@ -548,6 +548,7 @@ BlockDriverState *bdrv_cbw_append(BlockDriverState *source, BlockDriverState *target, const char *filter_node_name, bool discard_source, + uint64_t min_cluster_size, BlockCopyState **bcs, Error **errp) { @@ -567,6 +568,14 @@ BlockDriverState *bdrv_cbw_append(BlockDriverState *source, qdict_put_str(opts, "file", bdrv_get_node_name(source)); qdict_put_str(opts, "target", bdrv_get_node_name(target)); + if (min_cluster_size > INT64_MAX) { + error_setg(errp, "min-cluster-size too large: %" PRIu64 " > %" PRIi64, + min_cluster_size, INT64_MAX); + qobject_unref(opts); + return NULL; + } + qdict_put_int(opts, "min-cluster-size", (int64_t)min_cluster_size); + top = bdrv_insert_node(source, opts, flags, errp); if (!top) { return NULL; diff --git a/block/copy-before-write.h b/block/copy-before-write.h index 01af0cd3c4..2a5d4ba693 100644 --- a/block/copy-before-write.h +++ b/block/copy-before-write.h @@ -40,6 +40,7 @@ BlockDriverState *bdrv_cbw_append(BlockDriverState *source, BlockDriverState *target, const char *filter_node_name, bool discard_source, + uint64_t min_cluster_size, BlockCopyState **bcs, Error **errp); void bdrv_cbw_drop(BlockDriverState *bs); |