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-rw-r--r--blockdev.c15
1 files changed, 14 insertions, 1 deletions
diff --git a/blockdev.c b/blockdev.c
index 1eb62b637c..07fd3273ed 100644
--- a/blockdev.c
+++ b/blockdev.c
@@ -1193,6 +1193,7 @@ void qmp_drive_mirror(const char *device, const char *target,
enum MirrorSyncMode sync,
bool has_mode, enum NewImageMode mode,
bool has_speed, int64_t speed,
+ bool has_granularity, uint32_t granularity,
bool has_on_source_error, BlockdevOnError on_source_error,
bool has_on_target_error, BlockdevOnError on_target_error,
Error **errp)
@@ -1218,6 +1219,17 @@ void qmp_drive_mirror(const char *device, const char *target,
if (!has_mode) {
mode = NEW_IMAGE_MODE_ABSOLUTE_PATHS;
}
+ if (!has_granularity) {
+ granularity = 0;
+ }
+ if (granularity != 0 && (granularity < 512 || granularity > 1048576 * 64)) {
+ error_set(errp, QERR_INVALID_PARAMETER, device);
+ return;
+ }
+ if (granularity & (granularity - 1)) {
+ error_set(errp, QERR_INVALID_PARAMETER, device);
+ return;
+ }
bs = bdrv_find(device);
if (!bs) {
@@ -1299,7 +1311,8 @@ void qmp_drive_mirror(const char *device, const char *target,
return;
}
- mirror_start(bs, target_bs, speed, sync, on_source_error, on_target_error,
+ mirror_start(bs, target_bs, speed, granularity, sync,
+ on_source_error, on_target_error,
block_job_cb, bs, &local_err);
if (local_err != NULL) {
bdrv_delete(target_bs);