diff options
Diffstat (limited to 'block')
| -rw-r--r-- | block/backup.c | 28 | ||||
| -rw-r--r-- | block/replication.c | 2 |
2 files changed, 24 insertions, 6 deletions
diff --git a/block/backup.c b/block/backup.c index 09ff5a92ef..5522c0f3fe 100644 --- a/block/backup.c +++ b/block/backup.c @@ -388,6 +388,29 @@ BlockJob *backup_job_create(const char *job_id, BlockDriverState *bs, return NULL; } + cluster_size = backup_calculate_cluster_size(target, errp); + if (cluster_size < 0) { + goto error; + } + + if (perf->max_workers < 1) { + error_setg(errp, "max-workers must be greater than zero"); + return NULL; + } + + if (perf->max_chunk < 0) { + error_setg(errp, "max-chunk must be zero (which means no limit) or " + "positive"); + return NULL; + } + + if (perf->max_chunk && perf->max_chunk < cluster_size) { + error_setg(errp, "Required max-chunk (%" PRIi64 ") is less than backup " + "cluster size (%" PRIi64 ")", perf->max_chunk, cluster_size); + return NULL; + } + + if (sync_bitmap) { /* If we need to write to this bitmap, check that we can: */ if (bitmap_mode != BITMAP_SYNC_MODE_NEVER && @@ -420,11 +443,6 @@ BlockJob *backup_job_create(const char *job_id, BlockDriverState *bs, goto error; } - cluster_size = backup_calculate_cluster_size(target, errp); - if (cluster_size < 0) { - goto error; - } - /* * If source is in backing chain of target assume that target is going to be * used for "image fleecing", i.e. it should represent a kind of snapshot of diff --git a/block/replication.c b/block/replication.c index 22ffc811ee..97be7ef4de 100644 --- a/block/replication.c +++ b/block/replication.c @@ -454,7 +454,7 @@ static void replication_start(ReplicationState *rs, ReplicationMode mode, int64_t active_length, hidden_length, disk_length; AioContext *aio_context; Error *local_err = NULL; - BackupPerf perf = { .use_copy_range = true }; + BackupPerf perf = { .use_copy_range = true, .max_workers = 1 }; aio_context = bdrv_get_aio_context(bs); aio_context_acquire(aio_context); |