diff options
Diffstat (limited to 'block/export/export.c')
| -rw-r--r-- | block/export/export.c | 4 |
1 files changed, 4 insertions, 0 deletions
diff --git a/block/export/export.c b/block/export/export.c index 10316b43c5..a8f274e526 100644 --- a/block/export/export.c +++ b/block/export/export.c @@ -83,6 +83,8 @@ BlockExport *blk_exp_add(BlockExportOptions *export, Error **errp) uint64_t perm; int ret; + GLOBAL_STATE_CODE(); + if (!id_wellformed(export->id)) { error_setg(errp, "Invalid block export id"); return NULL; @@ -145,7 +147,9 @@ BlockExport *blk_exp_add(BlockExportOptions *export, Error **errp) * access since the export could be available before migration handover. * ctx was acquired in the caller. */ + bdrv_graph_rdlock_main_loop(); bdrv_activate(bs, NULL); + bdrv_graph_rdunlock_main_loop(); perm = BLK_PERM_CONSISTENT_READ; if (export->writable) { |